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<!--Generated by Site-Server v@build.version@ (http://www.squarespace.com) on Fri, 08 May 2026 15:31:35 GMT
--><rss xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:media="http://www.rssboard.org/media-rss" version="2.0"><channel><title>The Orbital Mechanics Podcast</title><link>https://theorbitalmechanics.com/show-notes/</link><lastBuildDate>Tue, 08 Jul 2025 23:26:50 +0000</lastBuildDate><language>en-US</language><generator>Site-Server v@build.version@ (http://www.squarespace.com)</generator><itunes:author>David Fourman, Ben Etherington and Dennis Just</itunes:author><itunes:explicit>false</itunes:explicit><itunes:owner><itunes:name>David Fourman</itunes:name><itunes:email>info@theorbitalmechanics.com</itunes:email></itunes:owner><itunes:category text="Science"><itunes:category text="Natural Sciences"/></itunes:category><itunes:category text="Science"><itunes:category text="Physics"/></itunes:category><itunes:category text="Science"><itunes:category text="Earth Sciences"/></itunes:category><itunes:type>episodic</itunes:type><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1418314982417-0PNSD5LD6WLV5ZFEWTLM/TOM_2.jpg?format=1500w"/><description><![CDATA[Every week we cover the latest spaceflight news, discuss past, current and future exploration efforts, and take a look at upcoming events. Tune in to hear about how humans get to space, how they stay in space and how unmanned craft reach farther and farther into the universe around us.]]></description><item><title>Episode 511: LOS</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 09 Jul 2025 00:12:25 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/los</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:686da93a5fee2465cca328ed</guid><description><![CDATA[<p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— We won’t be restocking T-shirts, but feel free to find a print company you like and use our logos to make your own! Please do not use our logos for any other purpose without permission. (<a href="https://drive.google.com/drive/folders/133g2vDB6hvHk9ptNtissB-uqwesUwpYA">drive.google.com</a>)</p><p class="" data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Posters have been added to the store (<a href="https://theorbitalmechanics.com/store">theorbitalmechanics.com/store</a>)</p><p class="" data-rte-preserve-empty="true" style="white-space:pre-wrap;">— There’s still a great space community on our Discord (<a href="https://theorbitalmechanics.com/discord">theorbitalmechanics.com/discord</a>)</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>A goodbye to the weekly show.</itunes:subtitle><itunes:summary>A goodbye to the weekly show.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:20:37</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1418314982417-0PNSD5LD6WLV5ZFEWTLM/TOM_2.jpg?format=1500w"/><itunes:title>Episode 511: LOS</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/686db3ac7a1a180d9779f993/1752019928770/Episode-511.mp3" length="17323993" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/686db3ac7a1a180d9779f993/1752019928770/Episode-511.mp3" length="17323993" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 511: LOS</media:title></media:content></item><item><title>Episode 510.2: Abort Abort Abort</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Mon, 30 Jun 2025 22:52:34 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/abort-abort-abort</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:6863127c06954a7497820f3a</guid><description><![CDATA[<p data-rte-preserve-empty="true" style="white-space:pre-wrap;">Well, after last week's short episode, I suspect that a lot of you anticipated <em>this</em> short episode would be coming out.</p><p class="" data-rte-preserve-empty="true" style="white-space:pre-wrap;">I'm going to use some language that David, Dennis, and I have agreed represents our intentions. Please don't, like, take this too far, but we have decided to sunset the main show.</p><p class="" data-rte-preserve-empty="true" style="white-space:pre-wrap;">Here's what we're going to do. Next week, on <strong>Sunday, July 6th</strong>, we're going to get together and we're going to record an episode. We would like to invite anybody who's interested in listening into one of our live recordings to come join us.</p><p class="" data-rte-preserve-empty="true" style="white-space:pre-wrap;">We're not sure what we're going to do. We thought about calling this our last episode, but that doesn't feel quite right. I think the three of us have some ideas about what we want the future of this show to look like, even if it's not recording an episode every week. We'll also be able to tell you a bit more about what happened last week.</p><p class="" data-rte-preserve-empty="true" style="white-space:pre-wrap;">We would love if you have thought about joining a recording session and haven't, or if you used to and you still kind of want to but you haven't had a good motivation, here's your motivation. Come party with us. (Hopefully it'll be a party.)</p><p class="" data-rte-preserve-empty="true" style="white-space:pre-wrap;">But yeah, so that's the news for this week. Next week we expect to put out, you know, a full like hour-long episode like usual, and then we'll... it's not going to look like our normal episodes. It'll be pretty talky. I mean, our episodes are always talky. Even this short episode is pretty talky. But we're, you know, we'll probably talk about the news a little bit, but it's mainly going to be, I don't know, almost like a brainstorming session, maybe. We'll find out.</p><p class="" data-rte-preserve-empty="true" style="white-space:pre-wrap;">You're invited and I would love to see, like me personally, I would love to see you. There are a bunch of names scrolling through my head right now. I would love to see everybody on that list. And I'm sure there are plenty of names that I don't know yet. And you know, that's one of the things that I'm most afraid of losing if we're not doing weekly episodes is all the new people I'm not going to get to meet.</p><p class="" data-rte-preserve-empty="true" style="white-space:pre-wrap;">Come on by next week, <strong>July, Sunday, the 6th. We record at 9 a.m. Pacific, 12 p.m. Eastern.</strong> If you aren't already in our discord, you can go to <a href="https://theorbitalmechanics.com/discord">theorbitalmechanics.com/discord</a>, and that'll just redirect you to an invite. Yeah, you got to have a discord account. I'm sorry. But come come join us and say hi.</p><p class="" data-rte-preserve-empty="true" style="white-space:pre-wrap;">All right, talk to you guys next week. Bye.</p>]]></description><itunes:author>The Orbital Mechanics Podcast</itunes:author><itunes:subtitle>We have decided to sunset the “main show.” We’re going to record next week, July, Sunday, the 6th. We thought about calling this our final episode, but that doesn’t feel quite right. We record at 9 a.m. Pacific, 12 p.m. Eastern.</itunes:subtitle><itunes:summary>We have decided to sunset the “main show.” We’re going to record next week, July, Sunday, the 6th. We thought about calling this our final episode, but that doesn’t feel quite right. We record at 9 a.m. Pacific, 12 p.m. Eastern. If you aren't already in our discord, you can go to theorbitalmechanics.com/discord, and that'll just redirect you to an invite.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1418314982417-0PNSD5LD6WLV5ZFEWTLM/TOM_2.jpg?format=1500w"/><itunes:title>Episode 510.2: Abort Abort Abort</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/686313182ae1ed65c400c549/1751323421828/untitled_2.mp3" length="2450576" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/686313182ae1ed65c400c549/1751323421828/untitled_2.mp3" length="2450576" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 510.2: Abort Abort Abort</media:title></media:content></item><item><title>Episode 510.1: Hold hold hold</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Tue, 10 Jun 2025 20:15:55 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/hold-hold-hold</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:6848910fbaa4930360040ff6</guid><description><![CDATA[<p data-rte-preserve-empty="true" style="white-space:pre-wrap;">Weird, short episode here, but it still feels weird to not start the show by saying “and I’m Ben.”</p><p class="" data-rte-preserve-empty="true" style="white-space:pre-wrap;">So, we’ve had a personal emergency here on the crew. All three of us are fine, and we will let you know more about what’s happened, but for right now, this week’s episode is delayed. Hopefully it’ll be coming out later this week, but I don’t know. It may take a little while for things to get back to normal, but hopefully not too long. We just need a little bit of time to cope, and then we can figure out what our plans are.</p><p class="" data-rte-preserve-empty="true" style="white-space:pre-wrap;">Thank you guys for listening, and you know, I miss y’all.</p>]]></description><itunes:author>Ben Etherington</itunes:author><itunes:subtitle>Weird, short episode here, but it still feels weird to not start the show by saying “and I’m Ben.”  So, we’ve had a personal emergency here on the crew. All three of us are fine, and we will let you know more about what’s happened, but for right now, this week’s episode is delayed. Hopefully it’ll b</itunes:subtitle><itunes:summary>Weird, short episode here, but it still feels weird to not start the show by saying “and I’m Ben.”

So, we’ve had a personal emergency here on the crew. All three of us are fine, and we will let you know more about what’s happened, but for right now, this week’s episode is delayed. Hopefully it’ll be coming out later this week, but I don’t know. It may take a little while for things to get back to normal, but hopefully not too long. We just need a little bit of time to cope, and then we can figure out what our plans are.

Thank you guys for listening, and you know, I miss y’all.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1418314982417-0PNSD5LD6WLV5ZFEWTLM/TOM_2.jpg?format=1500w"/><itunes:title>Episode 510.1: Hold hold hold</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/684891182699a436bb2bb216/1749586202997/untitled.mp3" length="418981" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/684891182699a436bb2bb216/1749586202997/untitled.mp3" length="418981" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 510.1: Hold hold hold</media:title></media:content></item><item><title>Episode 510: Leakspin</title><category>Episode</category><dc:creator>David Fourman</dc:creator><pubDate>Wed, 04 Jun 2025 15:58:57 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/leakspin</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:683fb95064255728626f3c17</guid><description><![CDATA[<p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Starship Block 2: 0 for 3 (<a href="https://spacenews.com/starship-breaks-up-on-reentry-after-loss-of-attitude-control/">spacenews.com</a>) (<a href="https://www.youtube.com/watch?v=aqQM1AfpSZI&amp;ab_channel=ScottManley">youtube.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Block 3 Update (<a href="https://www.nasaspaceflight.com/2025/05/future-starship-block-3-mars/">nasaspaceflight.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Xodiac flies final time (<a href="https://arstechnica.com/space/2025/05/rocket-report-northrop-backs-firefly-and-names-its-rocket-xodiac-will-fly-no-more/">arstechnica.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— China successfully tests vertical-takeoff vertical-landing rocket (<a href="https://news.cgtn.com/news/2025-05-29/Chinese-commercial-rocket-completes-vertical-sea-recovery-test-1DMefpHW0qQ/p.html">cgtn.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">ii May 24, 1962: Fourth flight of Project Mercury (<a href="https://en.wikipedia.org/wiki/Mercury-Atlas_7">en.wikipedia.org</a>) (<a href="https://www.nasa.gov/mission/mercury-atlas-7-aurora-7/">nasa.gov</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Next week (6/10 - 6/16) in 1973: <em>Dos equis</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Recap on Starship’s ninth flight and the vehicle’s future. Also, the end of Xodiac and a test of another Chinese reusable booster.</itunes:subtitle><itunes:summary>Recap on Starship’s ninth flight and the vehicle’s future. Also, the end of Xodiac and a test of another Chinese reusable booster.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:49:06</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1749052026780-VCE9I9FKBMKPANFS8A6C/Scott_Carpenter_during_his_Mercury-Atlas_7_mission.jpg?format=1500w"/><itunes:title>Episode 510: Leakspin</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/68406c8bf62c53071a54b222/1749052645736/Episode-510.mp3" length="41247924" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/68406c8bf62c53071a54b222/1749052645736/Episode-510.mp3" length="41247924" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 510: Leakspin</media:title></media:content></item><item><title>Episode 509: Hungry Hopping Hippos</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 14 May 2025 02:13:33 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/hungry-hopping-hippos</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:6823f832bcca7d477360955f</guid><description><![CDATA[<p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Neutron update (<a href="https://spacenews.com/rocket-labs-neutron-tapped-for-u-s-military-cargo-test/">spacenews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— China announces mission to Venus (<a href="https://spectrum.ieee.org/china-venus-mission">ieee.org</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">Tianhe to be expanded (<a href="https://spacenews.com/china-to-launch-new-modules-to-tiangong-space-station/">spacenews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— 14 May, 1973. Launch of Skylab (<a href="https://historicspacecraft.com/skylab.html">historicspacecraft.com</a>) (PDF: <a href="https://sma.nasa.gov/SignificantIncidents/assets/living-and-working-in-space.pdf">nasa.gov</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Next week (5/20 - 5/26) in 1962: <em>Kickin’ up fireflies.</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Update on Rocket Lab’s Neutron. Also, China announced Venus sample return mission and an expansion to Tiangong.</itunes:subtitle><itunes:summary>Update on Rocket Lab’s Neutron. Also, China announced Venus sample return mission and an expansion to Tiangong.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:58:43</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1747187937470-63AA66K7Z29NV3KS77WY/deluge2.png?format=1500w"/><itunes:title>Episode 509: Hungry Hopping Hippos</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6823fb10db6fd466175346a2/1747188669857/Episode-509.mp3" length="49328747" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6823fb10db6fd466175346a2/1747188669857/Episode-509.mp3" length="49328747" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 509: Hungry Hopping Hippos</media:title></media:content></item><item><title>Episode 508: North of Antarctica</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 07 May 2025 02:14:36 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/north-of-america</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:681a77dfca8d0f5543f2d52b</guid><description><![CDATA[<p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Firefly Nozzle Anomaly (<a href="https://spacenews.com/alpha-rocket-suffers-stage-separation-anomaly-during-launch-of-lockheed-tech-demo-satellite/">spacenews.com</a>) (<a href="https://www.youtube.com/watch?v=6kimTg_G-Z4&amp;ab_channel=ScottManley">youtube.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Efforts continue to rescue Lunar Trailblazer (<a href="https://spacenews.com/nasa-to-continue-lunar-trailblazer-recovery-efforts-through-mid-june/">spacenews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— ISS avoids space debris (<a href="https://www.space.com/space-exploration/international-space-station/international-space-station-fires-thrusters-to-avoid-chinese-rocket-debris">space.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— From the intro: Kosmos 482’s parachutes dangling out? (<a href="https://www.space.com/space-exploration/launches-spacecraft/new-images-of-soviet-venus-lander-falling-to-earth-suggest-its-parachute-may-be-out">space.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— May 10, 1994: Last contact with the Clementine Spacecraft (<a href="https://en.wikipedia.org/wiki/Clementine_(spacecraft)">en.wikipedia.org</a>) (<a href="https://www.researchgate.net/figure/Clementine-spacecraft-internal-layout_fig1_227009336">researchgate.net</a>) (<a href="https://nap.nationalacademies.org/read/5815/chapter/5">nap.nationalacademies.org</a>) (<a href="https://klabs.org/DEI/lessons_learned/aerospace_corp/lessons_from_mistakes.pdf">klabs.org</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Next week (5/13 - 5/19) in 1973: <em>It’s the final countdown</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Firefly has a nozzle issue. Also, a Lunar Trailblazer alternate mission, and an ISS debris avoidance.</itunes:subtitle><itunes:summary>Firefly has a nozzle issue. Also, a Lunar Trailblazer alternate mission, and an ISS debris avoidance.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:36:39</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/123f7932-b97c-43b4-994c-0eae72168a5e/Alpha+FLTA006+_Message+In+A+Booster_+47-35+screenshot.png?format=1500w"/><itunes:title>Episode 508: North of Antarctica</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/681abd52239d3e3f1cec6092/1746583274152/Episode-508.mp3" length="30792884" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/681abd52239d3e3f1cec6092/1746583274152/Episode-508.mp3" length="30792884" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 508: North of Antarctica</media:title></media:content></item><item><title>Episode 507: Prolate Marshmallow</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 30 Apr 2025 02:47:08 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/prolate-marshmallow</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:6811586b0a2cac52bc5059ca</guid><description><![CDATA[<p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Sierra Space impact test (<a href="https://www.asdnews.com/news/aerospace/2025/04/24/sierra-space-advances-space-station-technology-with-hypervelocity-impact-testing-at-nasa-white-sands">asdnews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Atmos reentry test of PHOENIX-1 (<a href="https://spacenews.com/atmos-space-cargo-declares-first-test-flight-a-success-despite-reentry-uncertainty/">spacenews.com</a>) (<a href="https://europeanspaceflight.com/atmos-space-cargo-tentatively-declares-phoenix-1-flight-a-success/">europeanspaceflight.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Kosmos 482’s deorbit update (<a href="https://sattrackcam.blogspot.com/2025/04/kosmos-842-descent-craft-reentry.html">sattrackcam.blogspot.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Blue Origin tank failure? (HT ArcadeEngineer: <a href="https://fixupx.com/kerballistic07/status/1916251873239077040">fixupx.com/kerballistic07</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— 1 May, 1979: Enterprise rolled out to 39A (<a href="https://www.nasa.gov/history/40-years-ago-space-shuttle-enterprise-rolls-to-the-pad/">nasa.gov</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Next week (5/6 - 5/12) in 1994: <em>Lost and gone forever, in orbit</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Sierra Space shoots bullets, while Atmos' PHOENIX-1 hits the wrong ocean. Also, an update on Kosmos 482's upcoming fiery destruction.</itunes:subtitle><itunes:summary>Sierra Space shoots bullets, while Atmos' PHOENIX-1 hits the wrong ocean. Also, an update on Kosmos 482's upcoming fiery destruction.
</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:44:10</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1745967348614-QWO8V79XHAUL9ZZV9UUI/96034_O.jpg?format=1500w"/><itunes:title>Episode 507: Prolate Marshmallow</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/68118e341d3f737443761d08/1745981186437/Episode-507.mp3" length="37108038" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/68118e341d3f737443761d08/1745981186437/Episode-507.mp3" length="37108038" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 507: Prolate Marshmallow</media:title></media:content></item><item><title>Episode 506: ISS at Risk</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 23 Apr 2025 02:06:57 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/iss-at-risk</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:6808050b56b1ee2a4b6482a7</guid><description><![CDATA[<p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— The Riskiest Period of ISS’ Existence (<a href="https://spacenews.com/nasa-safety-panel-warns-of-increasing-risks-to-iss-operations/">spacenews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Enginefest</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">    — Latitude (<a href="https://europeanspaceflight.com/latitude-completes-hot-fire-test-of-flight-ready-combustion-chamber/">europeanspaceflight.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">    — Pangea Aerospace (<a href="https://europeanspaceflight.com/pangea-aerospace-secures-7-27m-euros-to-develop-its-aerospike-engine/">europeanspaceflight.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">    — Venus Aerospace (<a href="https://www.prnewswire.com/news-releases/venus-aerospace-outfits-its-record-setting-hypersonic-engine-system-with-nasa-supported-technology-302428953.html">prnewswire.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Building destroyed in explosion at Northrop Grumman test site (<a href="https://www.space.com/space-exploration/tech/explosion-at-northrop-grumman-rocket-test-site-in-utah-destroys-building">space.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Seat barter agreement extended through 2027 (<a href="https://spacenews.com/nasa-extends-seat-barter-agreement-with-roscosmos-into-2027/">spacenews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Unc’ Willy: “First flight” is a better term (<a href="https://discord.com/channels/137948573605036033/137948573605036033/1362097768709230866">discord.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— April 24, 1970: Launch of Dong Fang Hong (<a href="http://www.astronautix.com/d/dfh-1.html">astronautix.com</a>) (<a href="https://en.wikipedia.org/wiki/Dong_Fang_Hong_1">en.wikipedia.org</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Next week (4/29 - 5/5) in 1979: <em>Heading out for a three-month stay</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>ISS is entering the riskiest part of its life. It's time for EngineFest 2025! Also, an explosion in Utah and a seat barter agreement.</itunes:subtitle><itunes:summary>ISS is entering the riskiest part of its life. It's time for EngineFest 2025! Also, an explosion in Utah and a seat barter agreement.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:44:16</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1745356421662-KU2O6WNYC54FF6HYX77L/Venus_NASA_SBIR_Phase_1_PR.jpg?format=1500w"/><itunes:title>Episode 506: ISS at Risk</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/68084a025b4b2832cfd85194/1745373882042/Episode-506.mp3" length="37187764" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/68084a025b4b2832cfd85194/1745373882042/Episode-506.mp3" length="37187764" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 506: ISS at Risk</media:title></media:content></item><item><title>Episode 505: Confirming Isaacman</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 16 Apr 2025 01:35:42 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/confirming-isaacman</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:67fec5ec5c4a083791403182</guid><description><![CDATA[<p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Confirming Isaacman (<a href="https://spacenews.com/isaacman-says-nasa-should-pursue-human-moon-and-mars-programs-simultaneously/">spacenews.com</a>) (<a href="https://www.law.cornell.edu/uscode/text/51/20302">law.cornell.edu</a>) (<a href="https://aerospaceamerica.aiaa.org/nasa-nominee-calls-for-dual-moon-mars-focus-though-questions-remain/">aerospaceamerica.aiaa.org</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— One of the Lunar Terrain Vehicles unveiled (<a href="https://www.lunaroutpost.com/post/lunar-outpost-to-unveil-latest-lunar-terrain-vehicle-at-space-symposium-2025">lunaroutpost.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— New addition to DSN (<a href="https://www.space.com/the-universe/nasas-deep-space-network-is-getting-a-new-dish-to-help-distant-spacecraft-phone-home">space.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— DOD hires Astroscale (<a href="https://www.satellitetoday.com/government-military/2025/04/08/astroscale-selected-for-us-space-force-refueling-mission-in-geo-orbit/">satellitetoday.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— From the intro: Jonathan McDowell retiring (<a href="https://archive.ph/s36wZ#selection-683.1-687.184">archive.ph</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— 18 Apr, 2001. Maiden flight of GSLV Mk. I (a.k.a GSLV-D1) (<a href="https://www.isro.gov.in/mission_GSLV_D1.html?timeline=timeline">isro.gov.in</a>) (<a href="http://www.astronautix.com/g/gslv.html">astronautix.com</a>) (PDF: <a href="https://sci-hub.se/https://www.jstor.org/stable/24106254">sci-hub.se</a>)&nbsp; (<a href="https://planet4589.org/space/gcat/data/derived/currentcat.html">planet4589.org</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Next week (4/22 - 4/28) in 1970: <em>Is the national anthem really 20 days long?</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>A lunar rover prototype sitting on red carpet. It has lots of blue LEDs lighting up the shadows, and white LED strips lining almost every edge. The overall effect is very Transformers.</itunes:subtitle><itunes:summary>A lunar rover prototype sitting on red carpet. It has lots of blue LEDs lighting up the shadows, and white LED strips lining almost every edge. The overall effect is very Transformers.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:48:33</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/7f2bb316-7cc3-448f-8a21-c12eeb03124a/c5d709_1b0ad1c710134b5baba7c480342bc740%7Emv2.png?format=1500w"/><itunes:title>Episode 505: Confirming Isaacman</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/67ff08cf08200f1f2ba0e191/1744767243204/Episode-505.mp3" length="40791513" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/67ff08cf08200f1f2ba0e191/1744767243204/Episode-505.mp3" length="40791513" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 505: Confirming Isaacman</media:title></media:content></item><item><title>Episode 504: Mark Soyuzworth</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 09 Apr 2025 02:51:05 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/mark-soyuzworth</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:67f5839a1642695ce4639a75</guid><description><![CDATA[<p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Two more PAMs (<a href="https://spacenews.com/nasa-seeks-proposals-for-two-private-astronaut-missions-to-iss/">spacenews.com</a>) (<a href="https://sam.gov/opp/76a3c5e1915b4aa9a73c55dd7f41ad39/view">sam.gov</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Fram2 launches and lands (<a href="https://arstechnica.com/space/2025/04/four-private-astronauts-launch-on-first-human-mission-to-fly-over-the-poles/">arstechnica.com</a>) (<a href="https://www.space.com/space-exploration/private-spaceflight/fram2-astronaut-missions-west-coast-splashdown-opens-new-era-for-spacex">space.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— SpinLaunch turns to broadband (<a href="https://spacenews.com/spinlaunch-announces-plans-for-broadband-satellite-constellation/">spacenews.com</a>)	</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— From the intro: Starliner shakeup (<a href="https://spaceflightnow.com/2025/03/28/nasa-switches-starliner-crew-to-spacex-dragon-as-testing-continues-on-troubled-boeing-capsule/">spaceflightnow.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— From Espen Urkedal: FTS vs VTS</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— April 10, 1979: Launch (and early return) of Soyuz 33 (<a href="https://en.wikipedia.org/wiki/Soyuz_33">en.wikipedia.org</a>) (<a href="https://blazingbulgaria.wordpress.com/2012/06/14/soyuz-33/">blazingbulgaria.wordpress</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Next week (4/15 - 4/21) in 2001: <em>Stumbling 58 minutes short of the finish orbit</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>NASA puts out a call for more Private Astronaut Missions. Also, Fram2, and a SpinLaunch payload.</itunes:subtitle><itunes:summary>NASA puts out a call for more Private Astronaut Missions. Also, Fram2, and a SpinLaunch payload.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:38:00</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1744143412890-3WQPAYKITATJHPZ6RSF5/ezgif-5b8bc7d91886a1.jpg?format=1500w"/><itunes:title>Episode 504: Mark Soyuzworth</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/67f5e04b62b6cc7de054a9a1/1744167038211/Episode-504.mp3" length="31921844" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/67f5e04b62b6cc7de054a9a1/1744167038211/Episode-504.mp3" length="31921844" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 504: Mark Soyuzworth</media:title></media:content></item><item><title>Episode 503: DOWNLINK -- Joseph Marlin</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 02 Apr 2025 02:44:47 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/joseph-marlin</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:67ec64624e6e636eb147090d</guid><description><![CDATA[<p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Security Space (<a href="https://arstechnica.com/space/2025/03/at-long-last-the-space-force-has-certified-the-vulcan-rocket/">arstechnica.com</a>) (<a href="https://spacenews.com/rocket-lab-stoke-space-join-national-security-space-launch-competition/">spacenews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Interview -- Joseph Marlin, Deputy Chief Engineer, Blue Ghost Lunar Program</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— <a href="https://www.linkedin.com/in/josephmarlin/">linkedin.com/in/josephmarlin</a></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— <a href="http://fireflyspace.com">fireflyspace.com</a></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Apr 4, 1983. Launch of STS-6 (<a href="https://www.americaspace.com/2023/04/04/flight-of-the-geritol-bunch-remembering-sts-6-40-years-on/">americaspace.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Next week (4/8 - 4/14) in 1979: <em>Stumbling a mile before the finish line</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Joseph Marlin was the Deputy Chief Engineer for Blue Ghost's first mission. Learn with us about flying to, and landing on, the moon!</itunes:subtitle><itunes:summary>Joseph Marlin was the Deputy Chief Engineer for Blue Ghost's first mission. Learn with us about flying to, and landing on, the moon!</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>01:21:46</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1743545638720-Q5QIZDAUP7LMBV59XR20/ezgif-6cbab9b6d128dd.jpg?format=1500w"/><itunes:title>Episode 503: DOWNLINK -- Joseph Marlin</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/67eca3e648ca427bbe472231/1743561834712/Episode-503.mp3" length="68686004" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/67eca3e648ca427bbe472231/1743561834712/Episode-503.mp3" length="68686004" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 503: DOWNLINK -- Joseph Marlin</media:title></media:content></item><item><title>Episode 502: Still Sticking</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 26 Mar 2025 02:12:18 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/sitll-sticking</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:67e34ee26b262b59bf378088</guid><description><![CDATA[<p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Still sticking with Starliner (<a href="https://spacenews.com/nasa-examining-options-for-another-starliner-test-flight/">spacenews.com</a>) (<a href="https://aviationweek.com/space/launch-vehicles-propulsion/nasa-still-pursuing-boeing-starliner-certification">aviationweek.com</a>) (<a href="https://spacenews.com/crew-10-arrives-at-space-station/">spacenews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Starlab starts new phase (<a href="https://www.space.com/space-exploration/human-spaceflight/private-starlab-space-station-moves-into-full-scale-development-ahead-of-2028-launch">space.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Blaise via email: SRTM gravity gradients</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— March 31, 1972: Launch of Kosmos 482 (<a href="https://en.wikipedia.org/wiki/Kosmos_482">en.wikipedia.org</a>) (<a href="https://www.thespacereview.com/article/4384/1">spacereview.com</a>) (<a href="https://www.leonarddavid.com/soviet-venus-lander-stranded-in-earth-orbit-new-speculation/">leonarddavid.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Next week (4/1 - 4/7) in 1983: <em>Orbital structural test article</em></p>]]></description><itunes:author>Ronald Jenkees</itunes:author><itunes:subtitle>Starliner is facing down a fourth test flight before entering service. Also, a Starlab milestone.</itunes:subtitle><itunes:summary>Starliner is facing down a fourth test flight before entering service. Also, a Starlab milestone.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:48:11</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1742950219515-560T3FD67BTEFUE1OPEV/Nave_espacial_Venera_8.jpg?format=1500w"/><itunes:title>Episode 502: Still Sticking</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/67e36215e1956c05b0df68d1/1742955105428/Episode-502.mp3" length="40478096" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/67e36215e1956c05b0df68d1/1742955105428/Episode-502.mp3" length="40478096" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 502: Still Sticking</media:title></media:content></item><item><title>Episode 501: MSR China</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 19 Mar 2025 01:43:26 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/msr-china</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:67d9d9b36d37dc40a2ab1b5a</guid><description><![CDATA[<p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— China’s Mars Sample Return open to International Cooperation (<a href="https://news.cgtn.com/news/2025-03-16/China-invites-global-scientific-community-on-its-Mars-mission-1BMvXH8PdlK/p.html">cgtn.com</a>) (<a href="https://spacenews.com/china-opens-2028-mars-sample-return-mission-to-international-cooperation/">spacenews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Several Russian sats on the move (<a href="https://sattrackcam.blogspot.com/2025/03/the-russian-eavesdropping-satellite.html">sattrackcam.blogspot.com</a>) (<a href="https://defence-blog.com/russian-space-weapon-shifts-orbit-after-two-year-hiatus/">defence-blog.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— X-37B lands after record-breaking mission (<a href="https://arstechnica.com/space/2025/03/after-flying-higher-than-ever-the-us-militarys-x-37b-spaceplane-is-back-home/">arstechnica.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— From the intro: leaked starship photos: (HT The Orbital Index: <a href="https://www.reddit.com/r/SpaceXMasterrace/comments/1i2hxta/another_day_another_leaked_starship_internal_view/#lightbox">reddit.com</a>) (HT The Orbital Index: <a href="https://www.reddit.com/r/SpaceXLounge/comments/1j69zha/possible_leaked_screenshot_of_s34_missing_an_rvac/">reddit.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— 18 Mar, 1980. Plesetsk launch pad disaster (<a href="http://www.plesetzk.ru/index.php?p=1980&amp;d=doc/disaster">plesetzk.ru</a>) (<a href="https://www.russianspaceweb.com/plesetsk.html">russianspaceweb.com</a>) (<a href="http://news.bbc.co.uk/2/hi/world/monitoring/media_reports/705808.stm">bbc.co.uk</a>) (<a href="https://en.wikipedia.org/wiki/1980_Plesetsk_launch_pad_disaster">en.wikipedia.org</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">    — Tangent on GRAU indices (<a href="https://en.wikipedia.org/wiki/Main_Missile_and_Artillery_Directorate">en.wikipedia.org</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Next week (3/25 - 3/31) in 1972: <em>Much closer, much easier, but 53 years late</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>China invited foreign scientists to propose payloads to fly on their sample return mission, Tianwen-3. Also: Russian sat movements and X-37B returns.</itunes:subtitle><itunes:summary>China invited foreign scientists to propose payloads to fly on their sample return mission, Tianwen-3. Also: Russian sat movements and X-37B returns.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:43:17</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1742330357493-O1JK2BBUY4AHISHEHLKE/LUCH_OLYMP_2_longitudes_anot.png?format=1500w"/><itunes:title>Episode 501: MSR China</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/67da20d526cb7e0aa494c67f/1742348581114/Episode-501.mp3" length="36361616" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/67da20d526cb7e0aa494c67f/1742348581114/Episode-501.mp3" length="36361616" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 501: MSR China</media:title></media:content></item><item><title>Episode 500: Quincentennial</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 12 Mar 2025 01:51:00 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/quincentennial</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:67d0e3d5c25779460ae4b8ff</guid><description><![CDATA[<p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— IM-2 lunar landing (<a href="https://www.intuitivemachines.com/im-2">intuitivemachines.com</a>) (<a href="https://spacenews.com/im-2-lunar-lander-touches-down-status-unclear/">spacenews.com</a>) (<a href="https://spacenews.com/im-2-lunar-lander-mission-ends/">spacenews.com</a>) (<a href="https://www.nasaspaceflight.com/2025/03/blue-ghost-im-2-landings/">nasaspaceflight.com</a>) (<a href="https://www.intuitivemachines.com/im-2?questionId=5c96c128-29bf-47c2-9548-2a24f1548535&amp;appDefId=14c92d28-031e-7910-c9a8-a670011e062d">intuitivemachines.com</a>) (<a href="https://www.youtube.com/live/q-mMJxIttBc?si=DjUfLwShQvkLMiQS&amp;t=1519">youtube.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Voyager turns off further instruments (<a href="https://www.space.com/nasa-switches-off-voyager-instruments-to-extend-life-of-the-two-interstellar-spacecraft">space.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— A Falcon 9 loses a leg (<a href="https://spacenews.com/fuel-leak-blamed-for-falcon-9-booster-loss-after-landing/">spacenews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— From the intro: ISS too clean (<a href="https://www.newsbreak.com/studyfinds-294921030/3839889239337-making-the-international-space-stations-dirtier-could-be-key-to-preserving-astronaut-health">newsbreak.com</a>) (<a href="https://www.cell.com/cell/fulltext/S0092-8674(25)00108-4">cell.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— 15 Mar, 1976. Launch of Lincoln Experimental Satellite 8 and 9 (LES-8 and -9) (<a href="https://space.skyrocket.de/doc_sdat/les-8.htm">skyrocket.de</a>) (<a href="https://en.wikipedia.org/wiki/Lincoln_Experimental_Satellite">wikipedia.org</a>) (<a href="https://www.ll.mit.edu/impact/trailblazer-military-satellite-communications">ll.mit.edu</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Next week (3/18 - 3/24) in 1980: <em>Wait nine years until “openness”</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>IM-2 made it to the surface, then things went sideways. Also, Voyager loses two instruments, and F9 loses a leg.</itunes:subtitle><itunes:summary>IM-2 made it to the surface, then things went sideways. Also, Voyager loses two instruments, and F9 loses a leg.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:55:45</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1741743727576-KW7AEWGQM4XAX9BQVO2T/435042-1D.jpg?format=1500w"/><itunes:title>Episode 500: Quincentennial</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/67d0e79916c0e7355da5a449/1741744115549/Episode-500.mp3" length="46838233" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/67d0e79916c0e7355da5a449/1741744115549/Episode-500.mp3" length="46838233" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 500: Quincentennial</media:title></media:content></item><item><title>Episode 499: Wicked Shimmy</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 05 Mar 2025 02:17:28 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/wicked-shimmy</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:67c778b6768f7f3d3840aef0</guid><description><![CDATA[<p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Starship TF7 bounced to pieces (Paywall: <a href="https://aviationweek.com/space/launch-vehicles-propulsion/spacex-details-starship-mishap-findings-changes-next-test">aviationweek.com</a>) (<a href="https://spacenews.com/spacex-completes-investigation-into-starship-flight-7-mishap/">spacenews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Two payloads on IM-2 launch suffering problems on-orbit (<a href="https://spacenews.com/lunar-trailblazer-odin-spacecraft-suffering-problems-after-im-2-launch/">spacenews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Space capsule lands in Australia while first rocket readies to launch (<a href="https://spacenews.com/varda-space-capsule-lands-in-australia-with-critical-data-for-hypersonic-vehicles/">spacenews.com</a>) (<a href="https://www.abc.net.au/news/2025-02-24/gilmour-space-orbital-rocket-launch-announcement/104845582">abc.net.au</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Xona received contract to develop GPS alternative (<a href="https://insidegnss.com/xona-secures-4-65m-contract-with-afrl-to-demonstrate-capabilities-of-low-earth-orbit-leo-gps-alternative-in-commercial-user-equipment/">insidegnss.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— From the intro: Blue Ghost lunar landing? (Spoiler: it did!) (<a href="https://www.space.com/the-universe/moon/were-on-the-moon-private-blue-ghost-moon-lander-aces-historic-lunar-landing-for-nasa">space.com</a>) (<a href="https://spacenews.com/fireflys-blue-ghost-1-lands-on-the-moon/">spacenews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Feb 26, 1960: Failed launch of MiDAS 1 (<a href="https://en.wikipedia.org/wiki/Missile_Defense_Alarm_System#MiDAS_launches">en.wikipedia.org</a>) (PDF: <a href="https://www.nro.gov/Portals/65/documents/foia/docs/foia-mda.pdf">nro.gov</a>) (PDF: <a href="https://www.nro.gov/Portals/65/documents/foia/declass/WS117L_Records/209.PDF">nro.gov</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Next week (3/11 - 3/17) in 1976: <em>Two score and nine years ago</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Starship's last flight broke up due to resonant vibration. Also, two IM-2 issues, two Aussie space events, and two-enty million for Xona.</itunes:subtitle><itunes:summary>Starship's last flight broke up due to resonant vibration. Also, two IM-2 issues, two Aussie space events, and two-enty million for Xona.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:40:30</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/381131d8-3647-4bdb-b0e7-0359228e4feb/ezgif-27d00b2d84c2c5.jpg?format=1500w"/><itunes:title>Episode 499: Wicked Shimmy</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/67c7b3e7d98e335d0a63430a/1741141034538/Episode-499.mp3" length="34028724" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/67c7b3e7d98e335d0a63430a/1741141034538/Episode-499.mp3" length="34028724" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 499: Wicked Shimmy</media:title></media:content></item><item><title>Episode 498: Decimation</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 19 Feb 2025 02:02:32 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/decimation</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:67b505b3ce3bb006c911e484</guid><description><![CDATA[<p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Stoke Space reveals Andromeda 2 (<a href="https://www.stokespace.com/introducing-andromeda/">stokespace.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Long March 8A completes first flight (<a href="https://spacenews.com/first-launch-of-long-march-8a-sends-second-group-of-guowang-megaconstellation-satellites-into-orbit/">spacenews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Germany provides funds for new launch facility (<a href="https://europeanspaceflight.com/germany-commits-additional-e870k-to-offshore-launch-facility/">europeanspaceflight.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— From the intro: Blue Origin Layoffs (<a href="https://spacenews.com/blue-origin-to-lay-off-10-of-its-workforce/">spacenews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— 24 Feb, 1996. Launch of POLAR satellite (PDF: <a href="https://ntrs.nasa.gov/api/citations/19960013904/downloads/19960013904.pdf">ntrs.nasa.gov</a>) (<a href="https://eyes.nasa.gov/apps/solar-system/#/sc_polar">eyes.nasa.gov</a>) (<a href="https://forum.nasaspaceflight.com/index.php?topic=12892.0">nasaspaceflight.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Next week (2/25 - 3/3) in 1960: <em>The copper touch</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Stoke Space revealed their updated second stage design! Also, Long's first March 8A and Germany funds off-shore launches.</itunes:subtitle><itunes:summary>Stoke Space revealed their updated second stage design! Also, Long's first March 8A and Germany funds off-shore launches.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:40:39</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/752e2358-213b-4e4d-8354-0326f26f793d/Polar_AutoD.jpg?format=1500w"/><itunes:title>Episode 498: Decimation</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/67b53abf14646267a2d9ba71/1739930503462/Episode-498.mp3" length="34148678" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/67b53abf14646267a2d9ba71/1739930503462/Episode-498.mp3" length="34148678" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 498: Decimation</media:title></media:content></item><item><title>Episode 497: Frustrating Frustum</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 12 Feb 2025 02:41:32 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/frustrating-frustum</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:67abd980470dd90c65925b62</guid><description><![CDATA[<p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— The most amazing little rocket that will have ever built (<a href="https://spacenews.com/missing-link-still-needed-to-save-mars-sample-return/">spacenews.com</a>) (<a href="https://baas.aas.org/pub/2021n4i394/release/1">aas.org</a>) (<a href="https://baas.aas.org/pub/2021n4i395/release/1">aas.org</a>) (<a href="https://baas.aas.org/pub/2021n4i396/release/1">aas.org</a>) (PDF: <a href="https://www.hou.usra.edu/meetings/tenthmars2024/pdf/3381.pdf">hou.usra.edu</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Starbase Update (<a href="https://www.nasaspaceflight.com/2025/02/starbase-progress-second-launch-pad/">nasaspaceflight.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Thales Alenia to build an airlock (<a href="https://europeanspaceflight.com/thales-alenia-space-to-build-emirates-airlock-for-lunar-gateway-station/">europeanspaceflight.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">Vast reschedules Haven-1 (<a href="https://spacenews.com/vast-begins-haven-1-testing-and-reschedules-its-launch/">spacenews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— From the intro: ThrustMe pushes into US market (<a href="https://spacenews.com/french-space-propulsion-firm-thrustme-expands-u-s-footprint/">spacenews.com</a>) (<a href="https://www.thrustme.fr/post/114-thrustme-breaks-into-the-north-american-market-with-leading-space-industry-players">thrustme.fr</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Unc’ Willy: Frustums, and NGLR (<a href="https://discord.com/channels/137948573605036033/137948573605036033/1336744952956325948">discord.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— 11 Feb, 2000: Shuttle Radar Topography Mission launched on STS-99 (<a href="https://en.wikipedia.org/wiki/STS-99">en.wikipedia.org</a>) (<a href="http://airandspace.si.edu/collections/artifact.cfm?object=nasm_A20040261000">airandspace.si.edu</a> VIA <a href="https://web.archive.org/web/20140809103617/http://airandspace.si.edu/collections/artifact.cfm?object=nasm_A20040261000">web.archive.org</a>) (PDF: <a href="https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2005RG000183">agupubs.onlinelibrary.wiley.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Next week (2/18 - 2/24) in 1996: <em>Goes where it says on the tin.</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Mars Sample Return still needs an MAV design. Also, a new Starbase pad, a new airlock contractor, and a new Vast schedule.</itunes:subtitle><itunes:summary>Mars Sample Return still needs an MAV design. Also, a new Starbase pad, a new airlock contractor, and a new Vast schedule.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>01:16:34</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/be838b14-52a0-4df6-be51-d63c8d6a208c/ezgif-3d397bf21ed372.jpg?format=1500w"/><itunes:title>Episode 497: Frustrating Frustum</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/67ac04940d637671ba8da5d0/1739326779295/Episode-497.mp3" length="64317913" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/67ac04940d637671ba8da5d0/1739326779295/Episode-497.mp3" length="64317913" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 497: Frustrating Frustum</media:title></media:content></item><item><title>Episode 496: Next-Gen Corner Cube</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 05 Feb 2025 03:27:34 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/next-gen-corner-cube</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:67a298c1d6f9af7bb8a39832</guid><description><![CDATA[<p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Blue Ghost M1 (<a href="https://www.americaspace.com/2025/01/30/blue-ghost-lander-progresses-through-checkouts">americaspace.com</a>) (<a href="https://www.nasaspaceflight.com/2025/01/lunar-missions-roundup/">nasaspaceflight.com</a>) (<a href="https://fireflyspace.com/news/blue-ghost-mission-1-live-updates/">fireflyspace.com</a>) (<a href="https://nssdc.gsfc.nasa.gov/nmc/spacecraft/displayExperiment.action?spacecraftId=BLUEGHOST">gsfc.nasa.gov</a>) (<a href="https://baas.aas.org/pub/2023n8i319p06/release/1">baas.aas.org</a>) (<a href="https://www.hou.usra.edu/meetings/lunarsurface22/pdf/5005.pdf">hou.usra.edu</a>)&nbsp;</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Starliner investigation nears completion (<a href="https://spacenews.com/safety-panel-reports-progress-in-starliner-investigation/">spacenews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— AstroForge announces first target (<a href="https://www.space.com/space-exploration/tech/space-mining-company-astroforge-identifies-asteroid-target-for-odin-launch-next-month">space.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— From the intro: IRNSS-1K launch failure (<a href="https://www.thehindu.com/sci-tech/science/isros-orbit-raising-operations-for-nvs-02-satellite-disrupted-by-valve-malfunction/article69173305.ece/amp/">thehindu.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Feb. 6, 1995: STS-63 approaches within 11 meters of Mir (<a href="https://en.wikipedia.org/wiki/STS-63">en.wikipedia.org</a>) (PDF: <a href="https://www.nasa.gov/wp-content/uploads/2023/05/sts-063-press-kit.pdf?emrc=0c4886">nasa.gov</a>) (<a href="https://thespaceabove.us/episodes/ep141_sts-63/">thespaceabove.us</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Next week (2/11 - 2/17) in 2000: <em>Tail-first and burning fast</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Firefly has got some neat stuff onboard! Also, Starliner's investigation and Astroforge's target.</itunes:subtitle><itunes:summary>Firefly has got some neat stuff onboard! Also, Starliner's investigation and Astroforge's target.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>01:02:07</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1738709374861-HSKUNEVA6V2FIJA5VE9T/Blue-Ghost-Missio-1-Earth-Selfie-1536x864.jpg?format=1500w"/><itunes:title>Episode 496: Next-Gen Corner Cube</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/67a2da23aac0b642859d9766/1738726026574/Episode-496.mp3" length="52186438" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/67a2da23aac0b642859d9766/1738726026574/Episode-496.mp3" length="52186438" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 496: Next-Gen Corner Cube</media:title></media:content></item><item><title>Episode 495: NICER than orange slices</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 29 Jan 2025 02:40:16 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/nicer-than-orange-slices</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:6799925bfa8162728b575220</guid><description><![CDATA[<p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— NICER repair on EVA 91 (<a href="https://www.nasaspaceflight.com/2025/01/iss-roundup-012425/">nasaspaceflight.com</a>) (<a href="https://svs.gsfc.nasa.gov/14603/">svs.gsfc.nasa.gov</a>) (<a href="https://science.nasa.gov/missions/station/iss-research/nicer/repair-kit-for-nasas-nicer-mission-heading-to-space-station/">science.nasa.gov</a>) (<a href="https://svs.gsfc.nasa.gov/14678/">svs.gsfc.nasa.gov</a>) (<a href="https://heasarc.gsfc.nasa.gov/docs/nicer/nicer_gallery.html">heasarc.gsfc.nasa.gov</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— ESA to vote on future of Space Rider spacecraft (<a href="https://europeanspaceflight.com/esa-member-states-to-vote-on-future-of-space-rider-in-november/">europeanspaceflight.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— China hops higher, maybe (<a href="https://spacenews.com/china-performs-high-altitude-reusable-rocket-test-with-uncertain-outcome/">spacenews.com</a>) (<a href="https://www.bilibili.com/video/BV1uTwqeDEoF/">bilibili.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— From the intro: New Shepard’s lunar gravity mission (<a href="https://spacenews.com/new-shepard-flight-to-demonstrate-lunar-gravity/">spacenews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Hydraq via email: CH4 hydrodynamics in Starship</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— 3 Feb, 1994: The launch of STS-60 (<a href="https://www.americaspace.com/2013/02/09/this-cant-be-real-the-unlikely-mission-of-sts-60-part-1/">americaspace.com</a>) (<a href="https://www.americaspace.com/2013/02/10/just-fix-it-the-unlikely-mission-of-sts-60-part-2/">americaspace.com</a>) (PDF: <a href="https://ntrs.nasa.gov/api/citations/19950019769/downloads/19950019769.pdf">nasa.gov</a>) (<a href="https://nss.org/space-shuttle-flight-60-sts-60-post-flight-presentation-video/">nss.org</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">Next week (2/4 - 2/10) in 1995: <em>Hey, it’s me again. I’m outside.</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>We take a look at the clever EVA tools used to do the first space telescope repair since Hubble. Also, Space Rider and a Chinese hopper.</itunes:subtitle><itunes:summary>We take a look at the clever EVA tools used to do the first space telescope repair since Hubble. Also, Space Rider and a Chinese hopper.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>01:00:49</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/13f529ef-076d-4eb0-bd71-0cd20d89afb3/ezgif-5c2840741577d.jpg?format=1500w"/><itunes:title>Episode 495: NICER Than Orange Slices</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/67999427bc90c4525eb43562/1738118297955/Episode-495.mp3" length="51089661" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/67999427bc90c4525eb43562/1738118297955/Episode-495.mp3" length="51089661" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 495: NICER Than Orange Slices</media:title></media:content></item><item><title>Episode 494: Debris Cross-Range</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 22 Jan 2025 02:29:22 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/debris-cross-range</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:6790224eec774d2d39a5d8e2</guid><description><![CDATA[<p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Starship FT-7 (<a href="https://www.nasaspaceflight.com/2025/01/starship-flight-7-block-2/">nasaspaceflight.com</a>) (<a href="https://spacenews.com/starship-upper-stage-lost-on-seventh-test-flight/">spacenews.com</a>) (<a href="https://bsky.app/profile/derekdotspace.bsky.social/post/3lfx4tdrqac2g">bsky.app/profile/derekdotspace.bsky.social</a>) (<a href="https://www.space.com/space-exploration/private-spaceflight/faa-requiring-investigation-into-spacex-starships-flight-7-explosion">space.com</a>) (<a href="https://spacenews.com/faa-investigating-starship-debris-reports/">spacenews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— ISRO successfully docks in space (<a href="https://spacenews.com/india-completes-on-orbit-docking-test-in-step-towards-major-space-plans/">spacenews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— RFA granted license for vertical launch from UK (<a href="https://europeanspaceflight.com/rfa-granted-launch-licence-for-rfa-one-debut-from-saxavord/">europeanspaceflight.com</a>)&nbsp;</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— From the intro: New Glenn First Flight (<a href="https://www.nasaspaceflight.com/2025/01/new-glenn-launch/">nasaspaceflight.com</a>) (<a href="https://www.americaspace.com/2025/01/12/after-25-years-of-work-blue-origin-stands-ready-for-new-glenn-debut">americaspace.com</a>) (<a href="https://www.americaspace.com/2025/01/16/blue-origin-achieves-orbit-with-new-glenn">americaspace.com</a>) (<a href="https://spacenews.com/new-glenn-reaches-orbit-on-first-launch/">spacenews.com</a>) (<a href="https://spacenews.com/blue-origin-scrubs-first-new-glenn-launch-attempt/">spacenews.com</a>) (<a href="https://spacenews.com/faa-requires-mishap-investigation-for-failed-new-glenn-landing/">spacenews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— DarthMooMoo: Varda launched on F9, not Electron (<a href="https://discord.com/channels/137948573605036033/137948573605036033/1329247733902606498">discord.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— 22 Jan 1997: Space debris hits a person for the first and only time on record. (HT SciKyle: <a href="https://en.wikipedia.org/wiki/Delta_II#Space_debris_(a.k.a,_%22Space_junk%22)">en.wikipedia.org</a>) (PDF: <a href="https://deepblue.lib.umich.edu/bitstream/handle/2027.42/76427/AIAA-1997-308-727.pdf;sequence=1">deepblue.lib.umich.edu</a>) (PDF: <a href="https://apps.dtic.mil/sti/tr/pdf/ADA381933.pdf">apps.dtic.mil</a>) (<a href="https://www.foxnews.com/science/woman-hit-by-space-junk-lives-to-tell-the-tale">foxnews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Next week (1/28 - 2/3) in 1994: <em>Call before you come over</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Starship had a success and a dramatic failure. Also, ISRO gets docked, and RFA gets licensed.</itunes:subtitle><itunes:summary>Starship had a success and a dramatic failure. Also, ISRO gets docked, and RFA gets licensed.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1737499389815-FTM527LZ0R7XP38NU1Y7/ezgif-1-f94ff3cff6.gif?format=1500w"/><itunes:title>Episode 494: Debris Cross-Range</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/67905732e034d4153da21f49/1737512848804/Episode-494.mp3" length="40376061" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/67905732e034d4153da21f49/1737512848804/Episode-494.mp3" length="40376061" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 494: Debris Cross-Range</media:title></media:content></item><item><title>Episode 493: Two Satellites Enter! Five Satellites Leave!</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 15 Jan 2025 01:46:50 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/5g63jfm4bl3423z3emylded54tpsef</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:6786ef3ad6dec52e62eb3054</guid><description><![CDATA[<p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><em>Thanks to Dennis O for naming this week’s episode!</em></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Mars Sample Return redesign (<a href="https://spaceflightnow.com/2025/01/07/nasa-to-announce-new-path-forward-on-mars-sample-return-mission/">spaceflightnow.com</a>) (<a href="https://spacenews.com/rocket-lab-asks-nasa-to-open-up-msr-to-commercial-competition/">spacenews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— China tests mission extension tech on-orbit (<a href="https://spacenews.com/china-launches-shijian-25-satellite-to-test-on-orbit-refueling-and-mission-extension-technologies/">spacenews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— X-37B’s latest mission passes one-year in space (<a href="https://www.space.com/space-exploration/tech/space-forces-secretive-x-37b-space-plane-soars-past-1-year-in-orbit">space.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Pale Blue Propulsion (<a href="https://spacenews.com/pale-blue-to-flight-test-water-thruster-with-d-orbit/">spacenews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— From the intro: Eaton/Pallisades fire relief for JPL workers (<a href="https://spacenews.com/nasa-jet-propulsion-laboratory-evacuated-due-to-la-wildfire/">spacenews.com</a>) (<a href="https://www.americaspace.com/2025/01/11/jpl-creates-relief-fund-for-team-members-impacted-by-eaton-fire/">americaspace.com</a>) (<a href="https://securelb.imodules.com/s/1709/devassoc/giving/giving.aspx?sid=1709&amp;gid=3&amp;pgid=1320&amp;cid=2582&amp;fid=2582">securelb.imodules.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Jan. 17, 2005: US-China Orbital Debris Event (<a href="https://www.space.com/969-china-space-debris-collide-orbit.html">space.com</a>) (PPT: <a href="https://celestrak.org/SOCRATES/Jan05_Collision_Summary.ppt">celestrak.org</a>) (<a href="https://spaceref.com/status-report/accidental-collisions-of-cataloged-satellites-identified/">spaceref.com</a>) (PDF: <a href="https://orbitaldebris.jsc.nasa.gov/quarterly-news/pdfs/ODQNv9i2.pdf">orbitaldebris.jsc.nasa.gov</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Next week (1/21 - 1/27) in 1997: <em>A tap on the shoulder</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>NASA has taken the first steps to making MSR on a limited budget a reality. Also, China's OSS, X-37B's birthday, and a Pale Blue dot!</itunes:subtitle><itunes:summary>NASA has taken the first steps to making MSR on a limited budget a reality. Also, China's OSS, X-37B's birthday, and a Pale Blue dot!</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:39:36</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1418314982417-0PNSD5LD6WLV5ZFEWTLM/TOM_2.jpg?format=1500w"/><itunes:title>Episode 493: Two Satellites Enter! Five Satellites Leave!</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/678712db4fe1e13cef118ec1/1736905556894/Episode-493.mp3" length="33267673" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/678712db4fe1e13cef118ec1/1736905556894/Episode-493.mp3" length="33267673" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 493: Two Satellites Enter! Five Satellites Leave!</media:title></media:content></item><item><title>Episode 492: Lotta Scoopin'</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 08 Jan 2025 02:50:41 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/lotta-scoopin</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:677de09a912bea60b9e29129</guid><description><![CDATA[<p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Starship TF-7 (<a href="https://spacenews.com/spacex-to-test-vehicle-upgrades-and-payload-deployment-on-next-starship-flight/">spacenews.com</a>) (<a href="https://ringwatchers.com/article/s33-tanks">ringwatchers.com</a>) (<a href="https://www.spacex.com/launches/mission/?missionId=starship-flight-7">spacex.com</a>) (<a href="https://twitter.com/spacesudoer/status/1860679421625336170/photo/1">twitter.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— India launches space docking demo mission (<a href="https://www.nasaspaceflight.com/2024/12/spadex-launch/">nasaspaceflight.com</a>) (<a href="https://www.space.com/space-exploration/launches-spacecraft/india-spadex-space-docking-satellites-launch">space.com</a>) (<a href="https://en.wikipedia.org/wiki/SpaDeX">en.wikipedia.org</a>) (<a href="https://www.isro.gov.in/mission_SpaDeX.html">isro.gov.in</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Launches gaining frequency (<a href="https://spacenews.com/fcc-allocates-additional-spectrum-for-commercial-launches/">spacenews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— 10 Jan, 1968: Surveyor 7 lands on the moon (<a href="https://science.nasa.gov/mission/surveyor-7/">nasa.gov</a>) (<a href="https://ntrs.nasa.gov/citations/19690008977">ntrs.nasa.gov</a>) (<a href="https://ntrs.nasa.gov/citations/19680028774">ntrs.nasa.gov</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Next week (1/14 - 1/20) in 2005: <em>Was that the Aurora Australis?</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>A Starship TF-7 preview, reuse included! Also, India's docking demo and an RF spectrum allocation.</itunes:subtitle><itunes:summary>A Starship TF-7 preview, reuse included! Also, India's docking demo and an RF spectrum allocation.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:55:09</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1736303094208-Y6FKWTNE7QZHK483X4GE/GdJ1p-PasAATJ3Q.png?format=1500w"/><itunes:title>Episode 492: Lotta Scoopin'</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/677de79e350e1f085a88f825/1736304621850/Episode-492.mp3" length="46336838" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/677de79e350e1f085a88f825/1736304621850/Episode-492.mp3" length="46336838" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 492: Lotta Scoopin'</media:title></media:content></item><item><title>Episode 491: Everest Space</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 01 Jan 2025 02:48:07 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/everest-space</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:67748ac766e1f02718ecf608</guid><description><![CDATA[<p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— K2 Space wins contract (<a href="https://spaceinsider.tech/2024/12/19/k2-space-secures-60-million-contract-for-first-mega-class-satellite-launch-in-2026/">spaceinsider.tech</a>) (<a href="https://spacenews.com/k2-space-lands-30-million-military-contract-for-mega-satellite-mission/">spacenews.com</a>) (<a href="https://www.addtheegg.com/p/la-hard-tech-spotlight-k2-space">addtheegg.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Contracts awarded for NASA’s Near Space Network (<a href="https://spacenews.com/nasa-selects-four-companies-for-commercial-communications-services/">spacenews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Record breaking spacewalk set by Shenzhou-19 crew (<a href="https://spacenews.com/shenzhou-19-astronauts-complete-record-breaking-9-hour-spacewalk/">spacenews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Crew-10 delayed (<a href="https://spacenews.com/next-crew-dragon-mission-delayed-a-month/">spacenews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— 2 Jan, 1959. Launch of Luna 1, first spacecraft to reach the Moon (<a href="https://en.wikipedia.org/wiki/Luna_1">en.wikipedia.org</a>) (<a href="https://www.smithsonianmag.com/air-space-magazine/the-luna-1-hoax-hoax-133487/">smithsonianmag.com</a>) (<a href="http://mentallandscape.com/L_Luna2.htm">mentallandscape.com</a>) (<a href="https://www.smithsonianmag.com/air-space-magazine/the-luna-1-hoax-hoax-133487/">smithsonianmag.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Next week (1/7 - 1/13) in 1968: <em>Highlander - there can be only one (of seven)</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>K2 Space is awarded a DOD contract. Also, NSN contracts, a record-breaking EVA, and a delayed Dragon.</itunes:subtitle><itunes:summary>K2 Space is awarded a DOD contract. Also, NSN contracts, a record-breaking EVA, and a delayed Dragon.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:42:41</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1735691026532-99TAHWY11EJH2RHS63WK/ezgif-1-928db9d9e5.jpg?format=1500w"/><itunes:title>Episode 491: Everest Space</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6774ac555d3b2c571973e3ac/1735699623713/Episode-491.mp3" length="35858758" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6774ac555d3b2c571973e3ac/1735699623713/Episode-491.mp3" length="35858758" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 491: Everest Space</media:title></media:content></item><item><title>Episode 490: PhageX</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 18 Dec 2024 01:46:40 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/phagex</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:676224c2f5adc0469039e365</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Orion’s heat shield (<a href="https://www.americaspace.com/2024/12/08/artemis-ii-orion-heatshield-update/">americaspace.com</a>) (<a href="https://www.nasa.gov/missions/artemis/nasa-identifies-cause-of-artemis-i-orion-heat-shield-char-loss/">nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Tests of Russian Orbital Station core module announced (<a href="https://interfax.com/newsroom/top-stories/108434/">interfax.com</a>)</p><p class="" style="white-space:pre-wrap;">— Ingenuity’s Crash Investigation (<a href="https://spacenews.com/jpl-completes-investigation-of-ingenuitys-final-flight/">spacenews.com</a>) (<a href="https://www.youtube.com/watch?v=yNDfMzskI_0">youtube.com</a>) (<a href="https://www.youtube.com/watch?v=p45y3ea9vHY">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— Joel Rogers via email: Young and Crippen didn’t fly on Enterprise.</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">—&nbsp;December 17, 2012: Grasshopper makes its first real hop (<a href="https://spacenews.com/spacexs-grasshopper-makes-40-meter-flight/">spacenews.com</a>) (<a href="https://en.wikipedia.org/wiki/Falcon_9_prototypes">en.wikipedia.org</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (1/1 - 1/6) in 1959: <em>To the moon! Uh... to the Sun!</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>NASA figured out what caused Orion's heat shield to crumble to bits! Also, Russia steps toward ISS replacement, and a preview crash investigation</itunes:subtitle><itunes:summary>NASA figured out what caused Orion's heat shield to crumble to bits! Also, Russia steps toward ISS replacement, and a preview crash investigation</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:38:19</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1734485403106-9K5OUFUPK2SRB7KPJ2P7/ezgif-3-3baa1fef4b.jpg?format=1500w"/><itunes:title>Episode 490: PhageX</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/67622924eb35004c58849fef/1734486364688/Episode-490.mp3" length="32190278" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/67622924eb35004c58849fef/1734486364688/Episode-490.mp3" length="32190278" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 490: PhageX</media:title></media:content></item><item><title>Episode 489: Swirl Domination</title><category>Vortex</category><category>Uhuru</category><dc:creator>David Fourman</dc:creator><pubDate>Wed, 11 Dec 2024 03:34:14 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/swirl-domination</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:6759029a580fb052cb569b2e</guid><description><![CDATA[<p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— Swirl-dominated chambers (<a href="https://payloadspace.com/afwerx-asks-altair-to-simulate-a-vortex/">payloadspace.com</a>) (<a href="https://www.sierraspace.com/press-releases/u-s-government-awards-contract-to-sierra-space-to-develop-powerful-new-upper-stage-rocket-engine/">https://www.sierraspace.com</a>) (<a href="https://www.researchgate.net/publication/317851717/figure/fig3/AS:666775477829668@1535983070986/Schematic-of-the-Vortex-Combustion-Cold-Wall-Chamber-VCCWC-depicting-both-inner-and.png">Pic</a>, from <a href="https://www.researchgate.net/figure/Schematic-of-the-Vortex-Combustion-Cold-Wall-Chamber-VCCWC-depicting-both-inner-and_fig3_317851717">researchgate.net</a>) (PDF: <a href="https://ntrs.nasa.gov/api/citations/20010020208/downloads/20010020208.pdf">nasa.gov</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— So long Sutherland Spaceport (<a href="https://www.satellitetoday.com/launch/2024/12/05/orbex-makes-strategic-u-turn-abandons-construction-of-sutherland-spaceport/">satellitetoday.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">Further delays to Artemis program announced (<a href="https://spacenews.com/nasa-further-delays-next-artemis-missions/">spacenews.com</a>)</p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;">— 12 Dec, 1970. Launch of Uhuru (<a href="http://nasa.gov">nasa.gov</a><a href="https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1970-107A">) (PDF: </a><a href="http://jhuapl.edu">jhuapl.edu</a><a href="https://secwww.jhuapl.edu/techdigest/content/techdigest/pdf/APL-V10-N4-5/APL-10-05-Riblet.pdf">)</a></p><p data-rte-preserve-empty="true" style="white-space:pre-wrap;"><a href="https://secwww.jhuapl.edu/techdigest/content/techdigest/pdf/APL-V10-N4-5/APL-10-05-Riblet.pdf">— Next </a>week (12/17 - 12/23) in 2012: <em>Ride ‘em, cowboy</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Altair gets a contract from AFWERX to design a new type of engine combustion chamber, Orbex says goodbye to Sutherland Spaceport, and another Artemis delay</itunes:subtitle><itunes:summary>Altair gets a contract from AFWERX to design a new type of engine combustion chamber, Orbex says goodbye to Sutherland Spaceport, and another Artemis delay</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:42:00</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1733887472190-9FVF2P383D3BMZPLEO6H/vortexheader.jpg?format=1500w"/><itunes:title>Episode 489: Swirl Domination</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6759032df1977e6c5476cc7c/1733886838179/Episode-489.mp3" length="35285318" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6759032df1977e6c5476cc7c/1733886838179/Episode-489.mp3" length="35285318" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 489: Swirl Domination</media:title></media:content></item><item><title>Episode 488: Chonky Copter</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 04 Dec 2024 02:44:25 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/sey7jf5kmnfxj573t8p9dc8h6sww5s</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:674f7e162633fb0643df1278</guid><description><![CDATA[<p><strong>Spaceflight News</strong></p><p>— Epsilon can’t stop exploding (<a href="http://space.com">space.com</a>) (<a href="http://youtu.be">youtu.be</a>) (PDF: <a href="http://jaxa.jp">jaxa.jp</a>)</p><p>— A Dragonfly on a Falcon Heavy (<a href="http://satellitetoday.com">satellitetoday.com</a>)</p><p><strong>Short &amp; Sweet</strong></p><p>— Old spaceport, newish rocket (<a href="http://europeanspaceflight.com">europeanspaceflight.com</a>)</p><p>— New rocket, new spaceport (<a href="http://spacenews.com">spacenews.com</a>)</p><p><strong>Questions, Comments, Corrections</strong></p><p>— From the intro: New Glenn on the pad (<a href="http://space.com">space.com</a>) (<a href="http://blueorigin.com">blueorigin.com</a>)</p><p><strong>This Week in Spaceflight History</strong></p><p>— 3 Dec, 2003: Shuttle Training Aircraft loses part of an engine (<a href="http://iasa.com.au">iasa.com.au</a> VIA <a href="http://web.archive.org">web.archive.org</a>) (<a href="http://en.wikipedia.org">en.wikipedia.org</a>) (<a href="http://simpleflying.com">simpleflying.com</a>)</p><p>— Next week (12/10 - 12/16) in 1970: <em>Equatorial eyes</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Epsilon exploded, and Dragonfly got a ride! Also, an old spaceport with a newish rocket, and a new spaceport with a newer rocket.</itunes:subtitle><itunes:summary>Epsilon exploded, and Dragonfly got a ride! Also, an old spaceport with a newish rocket, and a new spaceport with a newer rocket.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:44:07</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1733262870898-68USH4V2FQU9RCGTMNZZ/ezgif-6-34d5c04178.jpg?format=1500w"/><itunes:title>Episode 488: Chonky Copter</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/674fc1846d3dc06fbd88fa19/1733280216920/Episode-488.mp3" length="37063787" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/674fc1846d3dc06fbd88fa19/1733280216920/Episode-488.mp3" length="37063787" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 488: Chonky Copter</media:title></media:content></item><item><title>Episode 487: What's that smell?</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 27 Nov 2024 02:21:25 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/m7fxn2fe88r2845sph3j2hgkwpe4e3</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:67464ed47619a25dcf7ad02c</guid><description><![CDATA[<p><strong>Spaceflight News</strong></p><p>— Global grasshoppers</p><p>    — Russia’s hopper (<a href="http://arstechnica.com">arstechnica.com</a>)</p><p>    — EU’s hopper (<a href="http://europeanspaceflight.com">europeanspaceflight.com</a>)</p><p><strong>Short &amp; Sweet</strong></p><p>— Omani spaceport looks to launch next month (<a href="http://www.thenationalnews.com">www.thenationalnews.com</a>)</p><p>— China tests inflatable spacecraft on orbit (<a href="http://news.cgtn.com">news.cgtn.com</a>) (<a href="http://space.com">space.com</a>) (<a href="http://spacenews.com">spacenews.com</a>)</p><p>— Starship Test Flight Six (<a href="http://nasaspaceflight.com">nasaspaceflight.com</a>) (<a href="http://spacenews.com">spacenews.com</a>)&nbsp;</p><p><strong>Questions, Comments, Corrections</strong></p><p>— From the intro: Progress contamination (<a href="http://russianspaceweb.com">russianspaceweb.com</a>)</p><p><strong>This Week in Spaceflight History</strong></p><p>— November 28, 1983: Launch of STS-9, Columbia (<a href="http://en.wikipedia.org">en.wikipedia.org</a>) (PDF: <a href="http://nasa.gov">nasa.gov</a>) (<a href="http://nasa.gov">nasa.gov</a>)&nbsp; (<a href="http://americaspace.com">americaspace.com</a>)</p><p>— Next week (12/3 - 12/9) in 2003: <em>You’ve heard of the space banana, but what about the Banana River dunk?</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Russia and Europe plan reusable launcher demo hoppers. Also, Oman's new spaceport, China's inflatable module, and Superheavy's aborted landing.</itunes:subtitle><itunes:summary>Russia and Europe plan reusable launcher demo hoppers. Also, Oman's new spaceport, China's inflatable module, and Superheavy's aborted landing.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:40:57</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1732660949947-JA01P3UFMVKKG1PEJU8O/ezgif-7-b01e4489b5.jpg?format=1500w"/><itunes:title>Episode 487: What's that smell?</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/674681b519eb7f12b5316e01/1732674031042/Episode-487.mp3" length="34407970" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/674681b519eb7f12b5316e01/1732674031042/Episode-487.mp3" length="34407970" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 487: What's that smell?</media:title></media:content></item><item><title>Episode 486: 300mm of Mercury</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 20 Nov 2024 02:05:40 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/300mm-of-mercury</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:673d09d6b75ae67075d72fa9</guid><description><![CDATA[<p><strong>Spaceflight News</strong></p><p>— Zvezda leak disagreement (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://arstechnica.com">arstechnica.com</a>)</p><p><strong>Short &amp; Sweet</strong></p><p>— NGR is in the building! (<a href="http://spacenews.com">spacenews.com</a>)</p><p>— Bye bye ABL (from launch anyway) (<a href="http://arstechnica.com">arstechnica.com</a>)</p><p><strong>This Week in Spaceflight History</strong></p><p>— 24 Nov, 1970. Launch of Kosmos 379 (<a href="http://astronautix.com">astronautix.com</a>) (<a href="http://russianspaceweb.com">russianspaceweb.com</a>) (<a href="http://russianspaceweb.com">russianspaceweb.com</a>)&nbsp;</p><p>— Next week (11/26 - 12/2) in 1983: And then there were six</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>The leak in Zvezda isn't new, and neither is a NASA/Roscosmos disagreement. Also, NGR in one place and ABL quits launch services.</itunes:subtitle><itunes:summary>The leak in Zvezda isn't new, and neither is a NASA/Roscosmos disagreement. Also, NGR in one place and ABL quits launch services.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:54:21</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1732053500430-X6U9E7F2XV6MWV4HFKB1/ebd3a4d4-5519-4c1c-a3f9-039dc7c9e9c1_1800x855.jpg?format=1500w"/><itunes:title>Episode 486: 300mm of Mercury</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/673d43a8b37dea5ea1605820/1732068305944/Episode-486.mp3" length="45656244" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/673d43a8b37dea5ea1605820/1732068305944/Episode-486.mp3" length="45656244" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 486: 300mm of Mercury</media:title></media:content></item><item><title>Episode 485: Shuttle Sandwich</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 13 Nov 2024 02:01:12 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/shuttle-sandwich</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:6733f419d68673367fac13b5</guid><description><![CDATA[<p><strong>Spaceflight News</strong></p><p>— CRS-2 extended (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://sam.gov">sam.gov</a>)</p><p><strong>Short &amp; Sweet</strong></p><p>— Gilmour ups and Bowen downs (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://spacenews.com">spacenews.com</a>)</p><p>— LignoSat to be deployed from ISS (<a href="http://popsci.com">popsci.com</a>) (<a href="http://nanosats.eu">nanosats.eu</a>)</p><p>— Long March 9: Starship (<a href="https://arstechnica.com/space/2024/11/chinas-long-term-lunar-plans-now-depend-on-developing-its-own-starship/">arstechnica</a>)</p><p><strong>Questions, Comments, Corrections</strong></p><p>— From the intro: LEO safety study (PDF: <a href="http://ntrs.nasa.gov">ntrs.nasa.gov</a>)</p><p><strong>This Week in Spaceflight History</strong></p><p>— 12 Nov, 1981: The launch of STS-2 (<a href="http://en.wikipedia.org">en.wikipedia.org</a>) (<a href="http://nasa.gov">nasa.gov</a>) (<a href="http://historycollection.jsc.nasa.gov">historycollection.jsc.nasa.gov</a>)</p><p>— Next week (11/19 - 11/25) in 1970:<em> LELO: Low-Earth “Lunar” Orbit</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>CRS-2 gets extended without competition. Also, ups and downs down under, a wooden satellite, and a Starship lookalike.</itunes:subtitle><itunes:summary>CRS-2 gets extended without competition. Also, ups and downs down under, a wooden satellite, and a Starship lookalike.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:45:57</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1731458857991-W5HXDBCMNY293C9VTPQW/FwV9fmnaAAMoKBl.jpg?format=1500w"/><itunes:title>Episode 485: Shuttle Sandwich</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6734081fe56ba87ab4ac9fa8/1731463243107/Episode-485.mp3" length="38600884" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6734081fe56ba87ab4ac9fa8/1731463243107/Episode-485.mp3" length="38600884" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 485: Shuttle Sandwich</media:title></media:content></item><item><title>Episode 484: Runaway Ramp</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 06 Nov 2024 03:08:37 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/runaway-ramp</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:672adc253a31d9117931e633</guid><description><![CDATA[<p><strong>Spaceflight News</strong></p><p>— Shenzhou-19 reaches Tiangong (<a href="http://spaceflightnow.com">spaceflightnow.com</a>)</p><p>— Mirror platform for Tiangong (<a href="http://news.cgtn.com">news.cgtn.com</a>) (<a href="http://youtube.com">youtube.com</a>)</p><p>— Low-cost Tiangong cargo S/C (<a href="http://spacenews.com">spacenews.com</a>)</p><p>— “Kinetica-2 [selected] as top launcher choice” (<a href="http://twitter.com/cas_space">twitter.com/cas_space</a>)</p><p>— Crewed moon rover (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://twitter.com/YuqiiQian">twitter.com/YuqiiQian</a>)</p><p><strong>Short &amp; Sweet</strong></p><p>— Artemis heat shield chunks (<a href="http://spacenews.com">spacenews.com</a>)</p><p>— Liquid water on Mars (<a href="http://nature.com">nature.com</a> VIA <a href="http://nasaspaceflight.com">nasaspaceflight.com</a>) (<a href="http://news.berkeley.edu">news.berkeley.edu</a>)</p><p>— California startup develops ABEP system (<a href="http://spacenews.com">spacenews.com</a>)</p><p><strong>This Week in Spaceflight History</strong></p><p>— November 8, 2004: First launch of a Soyuz 2 carrier rocket (<a href="http://en.wikipedia.org">en.wikipedia.org</a>) (<a href="http://v2rockethistory.com">v2rockethistory.com</a>)</p><p>— Next week (11/12 - 11/18) in 1981: <em>40% of the mission, 90% of the objectives.</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>A pile of space news out of China. Also, Orion's heat shield (no news), liquid water on Mars, and an air-breathing ion engine.</itunes:subtitle><itunes:summary>A pile of space news out of China. Also, Orion's heat shield (no news), liquid water on Mars, and an air-breathing ion engine.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:37:00</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1730862263847-K55G1KLVYZZMO2S68KM3/GbDz0NAW0AA0LyM.jpg?format=1500w"/><itunes:title>Episode 484: Runaway Ramp</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/672add4a57aa310022f8e7af/1730862437153/Episode-484.mp3" length="31083627" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/672add4a57aa310022f8e7af/1730862437153/Episode-484.mp3" length="31083627" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 484: Runaway Ramp</media:title></media:content></item><item><title>Episode 483: 100 Abort Criteria</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 30 Oct 2024 01:00:58 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/100-abort-criteria</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:672183d1c357c253d35385ab</guid><description><![CDATA[<p><strong>Spaceflight News</strong></p><p>— Starship Flight 5 Review “Leaked” (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://twitter.com/elonmusk">twitter.com/elonmusk</a>) (<a href="http://spacenews.com">spacenews.com</a>) (HT DennisO: <a href="http://x.com/StarshipGazer">x.com/StarshipGazer</a>)</p><p><strong>Short &amp; Sweet</strong></p><p>— Crew-8 post-landing medical issue (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://blogs.nasa.gov">blogs.nasa.gov</a>)</p><p>— Companies to bring commercial launch to Ireland (<a href="http://europeanspaceflight.com">europeanspaceflight.com</a>)</p><p>— ACS-3’s a little crooked (<a href="http://space.com">space.com</a>) (<a href="http://blogs.nasa.gov">blogs.nasa.gov</a>)</p><p>— Mars Sample Revision (<a href="http://spacenews.com">spacenews.com</a>)</p><p><strong>Questions, Comments, Corrections</strong></p><p>— From the intro: Aerojet 260 solid rocket test (<a href="http://en.wikipedia.org">en.wikipedia.org</a>)</p><p><strong>This Week in Spaceflight History</strong></p><p>— 3 Nov, 1994. Launch of STS-66 (<a href="http://en.wikipedia.org">en.wikipedia.org</a>) (PDF: <a href="http://nasa.gov">nasa.gov</a>) (<a href="http://nss.org">nss.org</a>) (<a href="http://youtu.be">youtu.be</a>)</p><p>— Next week (11/5 - 11/11) in 2004: A blind bowling ball</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>We chew over new details about the Starship Flight 5 landing. Also, launch from Ireland, a crooked solar sail, and MSR revisions.</itunes:subtitle><itunes:summary>We chew over new details about the Starship Flight 5 landing. Also, launch from Ireland, a crooked solar sail, and MSR revisions.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:45:17</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1730249858080-EWGS4DYCNP15WF5DYUJJ/GZ4BWLGXYAA52Wh.jpg?format=1500w"/><itunes:title>Episode 483: 100 Abort Criteria</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/672185162c112e330a43dd27/1730250036918/Episode-483.mp3" length="38038781" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/672185162c112e330a43dd27/1730250036918/Episode-483.mp3" length="38038781" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 483: 100 Abort Criteria</media:title></media:content></item><item><title>Episode 482: Geostationary Explosive Orbit</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 23 Oct 2024 02:57:24 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/geostationary-explosive-orbit</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:67183611e8590e46e726b2be</guid><description><![CDATA[<p>Thanks to Dennis O for naming this week’s episode!</p><p><strong>Spaceflight News</strong></p><p>— Intelsat 33e loses power and blows up (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://x.com/S4S_SDA">x.com/S4S_SDA</a>) (<a href="http://reddit.com">reddit.com</a>)</p><p><strong>Short &amp; Sweet</strong></p><p>— Sirius Space hot fire (<a href="http://europeanspaceflight.com">europeanspaceflight.com</a>)</p><p>— A Firefly to launch a Jackal (<a href="http://satellitetoday.com">satellitetoday.com</a>)</p><p><strong>Questions, Comments, Corrections</strong></p><p>— Ross Peterson: Super Heavy’s reentry heating</p><p>— Taylor S Marks: ISS graveyard orbit (<a href="http://discord.com">discord.com</a>)</p><p><strong>This Week in Spaceflight History</strong></p><p>— &nbsp;27 Oct, 1992. Launch of the Znamya 2 solar power antenna (<a href="http://en.wikipedia.org">en.wikipedia.org</a>) (<a href="http://thespacereview.com">thespacereview.com</a>) (<a href="http://qsl.net">qsl.net</a>) (<a href="http://skypub.com">skypub.com</a> VIA <a href="http://web.archive.org">web.archive.org</a>)</p><p>— Next week (10/29 - 11/4) in 1994: <em>holding the weight of LEO on your shoulders</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>We just lost a satellite up in GEO! Also, Sirius Space takes another step and Firefly picks up another contract.</itunes:subtitle><itunes:summary>We just lost a satellite up in GEO! Also, Sirius Space takes another step and Firefly picks up another contract.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:54:30</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1729640118587-MY5PC7JCHPSCKJA4U5ET/Sirius-Space-Completes-STAR-1-Hot-Fire-Test-Campaign.jpg?format=1500w"/><itunes:title>Episode 482: Geostationary Explosive Orbit</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6718656770d60b5a050c9a16/1729652104854/Episode-482.mp3" length="45791924" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6718656770d60b5a050c9a16/1729652104854/Episode-482.mp3" length="45791924" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 482: Geostationary Explosive Orbit</media:title></media:content></item><item><title>Episode 481: Deorbit Strategies</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 16 Oct 2024 01:55:52 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/deorbit-strategies</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:670f1a17ea634800ab6a3f31</guid><description><![CDATA[<p><strong>Spaceflight News</strong></p><p>— Worries about ISS making a splash (<a href="http://spacenews.com">spacenews.com</a>) (PDF: <a href="http://nasa.gov">nasa.gov</a>) (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://space.com">space.com</a>)</p><p><strong>Short &amp; Sweet</strong></p><p>— X-37B to perform aerobraking maneuver (<a href="http://defenseone.com">defenseone.com</a>)</p><p>— Rocket Lab wins Mars Sample Return concept award (<a href="http://spacenews.com">spacenews.com</a>)</p><p>— Vast unveils details on Haven-1 (<a href="http://payloadspace.com">payloadspace.com</a>)</p><p><strong>Questions, Comments, Corrections</strong></p><p>— From the intro: Starship Flight Test 5 (<a href="http://youtu.be">youtu.be</a>) (<a href="http://nasaspaceflight.com">nasaspaceflight.com</a>)</p><p><strong>This Week in Spaceflight History</strong></p><p>— October 17, 1974: Founding of OTRAG (<a href="http://en.wikipedia.org">en.wikipedia.org</a>) (<a href="http://youtube.com">youtube.com</a>) (<a href="http://youtube.com">youtube.com</a>) (<a href="http://bernd-leitenberger.de">bernd-leitenberger.de</a>)</p><p>— Next week (10/22 - 10/28) in 1992: <em>To shreds, you say!</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>NASA published a study on ISS deorbit concerns and options. Also, X-37B's planned aerobrake, Rocket Lab's MSR contract, and a private space station.</itunes:subtitle><itunes:summary>NASA published a study on ISS deorbit concerns and options. Also, X-37B's planned aerobrake, Rocket Lab's MSR contract, and a private space station.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:30:01</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1729043185959-Y5FTCKAKF8SUZ4ZSXLRY/6706e73f7236da57c58a7cd5_6706e63e8cac047bba29cb34_haven-1_interior.jpg?format=1500w"/><itunes:title>Episode 481: Deorbit Strategies</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/670f1c6fcb27104d323da676/1729043614211/Episode-481.mp3" length="25216473" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/670f1c6fcb27104d323da676/1729043614211/Episode-481.mp3" length="25216473" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 481: Deorbit Strategies</media:title></media:content></item><item><title>Episode 480: Phenolic Burnthrough</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 09 Oct 2024 01:50:05 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/phenolic-burnthrough</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:6705ddb33987b0283ac055e2</guid><description><![CDATA[<p><strong>Spaceflight News</strong></p><p>-- Vulcan anomaly (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://youtube.com">youtube.com</a>) (<a href="http://spaceflightnow.com">spaceflightnow.com</a>) (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://twitter.com/dwisecinema">twitter.com/dwisecinema</a>) (<a href="http://spacenews.com">spacenews.com</a>)</p><p><strong>Short &amp; Sweet</strong></p><p>-- Voyager 2 turns off science instrument (<a href="http://inverse.com">inverse.com</a>)</p><p>-- Super bright Qianfan satellites (<a href="http://spacenews.com">spacenews.com</a>)</p><p>-- NASA reduces rate of ISS leak (<a href="http://spacenews.com">spacenews.com</a>)</p><p><strong>Questions, Comments, Corrections</strong></p><p>-- Unc’ Willy: Crossfield’s employer (<a href="http://discord.com">discord.com</a>)</p><p><strong>This Week in Spaceflight History</strong></p><p>-- 8 Oct, 2012: The launch of CRS-1 (<a href="http://en.wikipedia.org">en.wikipedia.org</a>) (<a href="http://nasaspaceflight.com">nasaspaceflight.com</a>)</p><p>-- Next week (10/15 - 10/21) in 1974: <em>The original SpaceX</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Vulcan's second flight had a bit of an issue. Also, Voyager 2 conserves power, China's new sats are bright, and ISS is leaking less.</itunes:subtitle><itunes:summary>Vulcan's second flight had a bit of an issue. Also, Voyager 2 conserves power, China's new sats are bright, and ISS is leaking less.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:55:07</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1728437786095-68T4O54HTL1S5K8ULY74/ezgif-3-f1de745a24.gif?format=1500w"/><itunes:title>Episode 480: Phenolic Burnthrough</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6705e078eb44d006746975c1/1728438582886/Episode-480.mp3" length="46300966" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6705e078eb44d006746975c1/1728438582886/Episode-480.mp3" length="46300966" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 480: Phenolic Burnthrough</media:title></media:content></item><item><title>Episode 479: VIPER Sting</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Tue, 01 Oct 2024 23:47:26 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/viper-sting</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:66fc888ccdba454ebc6d6a64</guid><description><![CDATA[<p><strong>Spaceflight News</strong></p><p>-- VIPER opinions (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://sam.gov">sam.gov</a>)&nbsp;</p><p><strong>Short &amp; Sweet</strong></p><p>-- Chinese lunar spacesuit revealed (<a href="http://cgtn.com">cgtn.com</a>) (<a href="http://space.com">space.com</a>)</p><p>-- Upper stage anomaly grounds Falcon 9 (<a href="http://space.com">space.com</a>) (<a href="http://spacenews.com">spacenews.com</a>)</p><p>-- MaiaSpace moves in (<a href="https://spacenews.com/maiaspace-to-use-former-soyuz-launch-pad-in-french-guiana/">spacenews</a>)</p><p><strong>This Week in Spaceflight History</strong></p><p>-- 2 Oct, 1921. Birth of Scott Crossfield (<a href="http://en.wikipedia.org">en.wikipedia.org</a>) (PDF: <a href="http://govinfo.gov">govinfo.gov</a>) (<a href="http://magazine.washington.edu">magazine.washington.edu</a>)</p><p>-- Next week (10/8 - 10/14) in 2012: A boxy box delivery</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Everyone's still sore about VIPER getting cut. Also, a Chinese lunar spacesuit, another F9 grounding, and a small launcher in French Guiana.</itunes:subtitle><itunes:summary>Everyone's still sore about VIPER getting cut. Also, a Chinese lunar spacesuit, another F9 grounding, and a small launcher in French Guiana.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:43:05</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1727826118862-D4GEUX8C7FL44LUS283W/ezgif-7-c2ca056e75.jpg?format=1500w"/><itunes:title>Episode 479: VIPER Sting</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66fc89ba0a81951f2cc3e9d3/1727826416924/Episode-479.mp3" length="36201401" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66fc89ba0a81951f2cc3e9d3/1727826416924/Episode-479.mp3" length="36201401" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 479: VIPER Sting</media:title></media:content></item><item><title>Episode 478: ISRO Audit</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 25 Sep 2024 01:34:20 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/isro-audit</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:66f330383f965e6b42459669</guid><description><![CDATA[<p><strong>Spaceflight News</strong></p><p>-- ISRO rising (<a href="http://spacenews.com">spacenews.com</a>)</p><p><strong>Short &amp; Sweet</strong></p><p>-- Iran successfully launches research satellite (<a href="http://almayadeen.net">almayadeen.net</a>)</p><p>-- Ariane 6 software fix (<a href="http://spacenews.com">spacenews.com</a>)</p><p>-- Yutu 2 turns six (<a href="http://space.com">space.com</a>)</p><p><strong>Questions, Comments, Corrections</strong></p><p>-- From the intro: Sirius Space will launch from Australia (<a href="http://europeanspaceflight.com">europeanspaceflight.com</a>)</p><p><strong>This Week in Spaceflight History</strong></p><p>-- Launch of Shenzhou 7 (神舟七号) (<a href="http://en.wikipedia.org">en.wikipedia.org</a>) (PDF: <a href="http://nescacademy.nasa.gov">nescacademy.nasa.gov</a>) (<a href="http://youtube.com">youtube.com</a>) (<a href="http://youtube.com">youtube.com</a>)</p><p>-- Next week (10/1 - 10/7) in 1921: <em>Flying with Michael Burnham</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>ISRO approved a handful of new products, let's take a look! Also, an Iranian satellite, a fix for Ariane 6, and Yutu-2's half-birthday update!</itunes:subtitle><itunes:summary>ISRO approved a handful of new products, let's take a look! Also, an Iranian satellite, a fix for Ariane 6, and Yutu-2's half-birthday update!</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:35:37</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1727213706367-PDBZ4WQAJVRCMS8OL445/ezgif-4-cc8a1f4b34.jpg?format=1500w"/><itunes:title>Episode 478: ISRO Audit</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66f3684e46accd22080e0cc2/1727228046876/Episode-478.mp3" length="29919892" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66f3684e46accd22080e0cc2/1727228046876/Episode-478.mp3" length="29919892" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 478: ISRO Audit</media:title></media:content></item><item><title>Episode 477: Land Ahoy</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 18 Sep 2024 01:29:41 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/land-ahoy</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:66e9f5e036b2a23232ca53a7</guid><description><![CDATA[<p><strong>Spaceflight News</strong></p><p>-- Landspace lands (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://youtube.com">youtube.com</a>)</p><p><strong>Short &amp; Sweet</strong></p><p>-- New Glenn to attempt landing (HT Chris Radcliff: <a href="https://twitter.com/davill">https://twitter.com/davill</a>)</p><p>-- Chang’e-6 extended mission (<a href="http://spacenews.com">spacenews.com</a>)</p><p><strong>Questions, Comments, Corrections</strong></p><p>-- From the intro: Polaris Dawn spacewalk (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://youtube.com">youtube.com</a>)</p><p><strong>This Week in Spaceflight History</strong></p><p>-- 22 Sep, 2006. Launch of Hinode (日の出) (<a href="http://nasa.gov">nasa.gov</a>)&nbsp; (<a href="http://eoportal.org">eoportal.org</a>) (<a href="http://esa.int">esa.int</a>) (<a href="http://en.wikipedia.org">en.wikipedia.org</a>)</p><p>-- Next week (9/24 - 9/30) in 2008: <em>And then there were three</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Landspace successfully landed a 10km hopper demo! Also, New Glenn landing attempt, and Chang'e-6's extended mission.</itunes:subtitle><itunes:summary>Landspace successfully landed a 10km hopper demo! Also, New Glenn landing attempt, and Chang'e-6's extended mission.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:29:54</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1726608964808-F8SCNMK0U4VDCBZ509V6/Hinode_Views_the_2012_Venus_Transit.jpg?format=1500w"/><itunes:title>Episode 477: Land Ahoy</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66ea2cd7d631ef512e1ea012/1726622964504/Episode-477.mp3" length="25122086" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66ea2cd7d631ef512e1ea012/1726622964504/Episode-477.mp3" length="25122086" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 477: Land Ahoy</media:title></media:content></item><item><title>Episode 476: Qrbital MeQaniQs</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Tue, 10 Sep 2024 21:59:53 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/qrbital-meqaniqs</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:66e0ad3ce7a40403c08f3030</guid><description><![CDATA[<p><strong>Spaceflight News</strong></p><p>-- BepiColombo insertion delayed (<a href="http://europeanspaceflight.com">europeanspaceflight.com</a>) (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://youtube.com">youtube.com</a>) (<a href="http://esa.int">esa.int</a>)</p><p><strong>Short &amp; Sweet</strong></p><p>-- EscaPADE DelAYED (<a href="http://spacenews.com">spacenews.com</a>)</p><p>-- Starliner Returned (<a href="http://arstechnica.com">arstechnica.com</a>) (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://nasaspaceflight.com">nasaspaceflight.com</a>)</p><p>-- Vega’s final launch (<a href="http://satellitetoday.com">satellitetoday.com</a>)</p><p><strong>Questions, Comments, Corrections</strong></p><p>-- From the intro: Blue Origin’s new drone ship (HT DennisO: <a href="https://x.com/_mgde_">https://x.com/_mgde_</a>) (<a href="http://space.com">space.com</a>)</p><p>-- Haragopal: Europa Clipper’s flying on Falcon Heavy, not New Glenn (<a href="http://discord.com">discord.com</a>)</p><p><strong>This Week in Spaceflight History</strong></p><p>-- 10 Sept, 2009: The launch of HTV-1 (<a href="http://en.wikipedia.org">en.wikipedia.org</a>) (<a href="http://humans-in-space.jaxa.jp">humans-in-space.jaxa.jp</a>) (PDF: <a href="http://nasa.gov">nasa.gov</a>)</p><p>-- Next week (9/17 - 9/23) in 2006: <em>Flying to where the Sun never rises</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>BepiColombo overcomes engine underperformance! Also, EscaPADE's new ride, Starliner's return, and Vega's final launch.</itunes:subtitle><itunes:summary>BepiColombo overcomes engine underperformance! Also, EscaPADE's new ride, Starliner's return, and Vega's final launch.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:46:12</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/c8b0b46a-180f-4370-bb07-23b8b8d1d169/BH2244073-800x421.jpg?format=1500w"/><itunes:title>Episode 476: Qrbital MeQaniQs</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66e0c0c6e9e6a04c8ceeab52/1726005498993/Episode-476.mp3" length="38809309" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66e0c0c6e9e6a04c8ceeab52/1726005498993/Episode-476.mp3" length="38809309" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 476: Qrbital MeQaniQs</media:title></media:content></item><item><title>Episode 475: Falcon Crunch</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 04 Sep 2024 01:31:10 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/falcon-crunch</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:66d7418478895d051b63dedf</guid><description><![CDATA[<p><strong>Spaceflight News</strong></p><p>-- B1062 lost (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://nasaspaceflight.com">nasaspaceflight.com</a>) (<a href="http://nasaspaceflight.com">nasaspaceflight.com</a>) (<a href="http://youtube.com">youtube.com</a>) (HT ArcadeEngineer: <a href="http://twitter.com">twitter.com</a>)</p><p><strong>Short &amp; Sweet</strong></p><p>-- Intuitive Machines selected for lunar South Pole mission (<a href="http://spacenews.com">spacenews.com</a>)</p><p>-- Stoke Space wins contract to prototype cargo delivery (<a href="http://satellitetoday.com">satellitetoday.com</a>) (<a href="http://stokespace.com">stokespace.com</a>)</p><p>-- Starliner wob wob (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://arstechnica.com">arstechnica.com</a>) (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://blogs.nasa.gov">blogs.nasa.gov</a>)</p><p><strong>Questions, Comments, Corrections</strong></p><p>-- From the intro: Europa Clipper (<a href="http://planetary.org">planetary.org</a>)</p><p><strong>This Week in Spaceflight History</strong></p><p>-- 6 Sept, 1988: The troublesome landing of Soyuz TM-5 (<a href="http://russianspaceweb.com">russianspaceweb.com</a>) (<a href="http://en.wikipedia.org">en.wikipedia.org</a>)</p><span><p>-- Next week (9/10 - 9/16) in 2009: Stork with a smile</p></span>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>The F9 life-leader is scrap. Also, IM will fly to the Moon again, Stoke Space flying DOD hardware, and Starliner's strange sound.</itunes:subtitle><itunes:summary>The F9 life-leader is scrap. Also, IM will fly to the Moon again, Stoke Space flying DOD hardware, and Starliner's strange sound.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:31:41</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1725383108735-SUN6JNNCKHOU7VSVPO9C/GWPnTyLXUA8IdO9.jpg?format=1500w"/><itunes:title>Episode 475: Falcon Crunch</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66da5700305c014521227713/1725585178106/Episode-475.mp3" length="26620418" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66da5700305c014521227713/1725585178106/Episode-475.mp3" length="26620418" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 475: Falcon Crunch</media:title></media:content></item><item><title>Episode 474: Another Six Months</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 28 Aug 2024 02:39:09 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/another-six-months</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:66ce80063cc70346e5a8cc4c</guid><description><![CDATA[<p><strong>Spaceflight News</strong></p><p>-- Starliner crew to return on Dragon (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://nasaspaceflight.com">nasaspaceflight.com</a>)</p><p><strong>Short &amp; Sweet</strong></p><p>-- EscaPADE arrives in Florida (<a href="http://spacenews.com">spacenews.com</a>)</p><p>-- SLS gets bumped up a block (<a href="https://spacenews.com/rs-25-engine-evolves-for-the-evolvable-sls-rocket/">spacenews</a>)</p><p>-- RFA first stage lost in test-firing anomaly (<a href="http://arstechnica.com">arstechnica.com</a>) (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://europeanspaceflight.com">europeanspaceflight.com</a>) (<a href="http://youtu.be">youtu.be</a>)</p><p><strong>This Week in Spaceflight History</strong></p><p>-- 27 Aug, 1985. Launch of STS-51-I (PDF: <a href="http://nasa.gov">nasa.gov</a>) (<a href="http://youtube.com">youtube.com</a>) (<a href="http://forum.nasaspaceflight.com">forum.nasaspaceflight.com</a>) (<a href="http://historycollection.jsc.nasa.gov">historycollection.jsc.nasa.gov</a>)<em> </em>(PDF: <a href="http://ntrs.nasa.gov">ntrs.nasa.gov</a>) (<a href="http://wikiarchives.space">wikiarchives.space</a>) (<a href="http://en.wikipedia.org">en.wikipedia.org</a>)</p><span><p>-- Next week (9/3 - 9/9) in 1988: <em>Shouldn’t have had that last cup of coffee</em></p></span>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Starliner will come home without crew; Suni and Butch are headed home on a Dragon. Also, EscaPADE arrives, Block 1B begins, and RFA has a BBQ.</itunes:subtitle><itunes:summary>Starliner will come home without crew; Suni and Butch are headed home on a Dragon. Also, EscaPADE arrives, Block 1B begins, and RFA has a BBQ.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:52:38</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1724809338923-BR9L7KWT2FR8BVUYGVI4/53926956914_41e12240c5_o.jpg?format=1500w"/><itunes:title>Episode 474: Another Six Months</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66ce8d78e7039b2a4883f1cb/1724812704384/Episode-474.mp3" length="44221149" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66ce8d78e7039b2a4883f1cb/1724812704384/Episode-474.mp3" length="44221149" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 474: Another Six Months</media:title></media:content></item><item><title>Episode 473: DOWNLINK--Rocket Lab's EscaPADE Team</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 21 Aug 2024 02:50:18 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/escapade</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:66c5264223a1f931a5e5f665</guid><description><![CDATA[<p><strong>Spaceflight News</strong></p><p>-- First polar-orbiting crewed mission announced (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://arstechnica.com">arstechnica.com</a>)</p><p><strong>Short &amp; Sweet</strong></p><p>-- New solid rocket game in town (<a href="http://breakingdefense.com">breakingdefense.com</a>) (<a href="http://spacenews.com">spacenews.com</a>)</p><p>-- Spaceport Rundown (<a href="http://flyingmag.com">flyingmag.com</a>) (<a href="http://europeanspaceflight.com">europeanspaceflight.com</a>) (<a href="http://cnbc.com">cnbc.com</a>)</p><p><strong>Questions, Comments, Corrections</strong></p><p>-- From Espen Urkedal via email: Raptor 3 is not as incomplete as it looks (<a href="http://twitter.com/gwynne_shotwell">twitter.com/gwynne_shotwell</a>)</p><p><strong>Interview -- Rocket Lab’s Cristophe Mandy and Sarah Blyde</strong></p><p>-- There’s also a brief appearance by Lane Cook, Senior Program Manager</p><p>-- Thank you so much to the Rocket Lab team for making their time and facility available to us!</p><p><a href="http://rocketlabusa.com">-- rocketlabusa.com</a></p><p><strong>This Week in Spaceflight History</strong></p><p>-- 24 Aug, 1958: The failed launch of Explorer 5 (<a href="http://en.wikipedia.org">en.wikipedia.org</a>) (PDF: <a href="http://nasa.gov">nasa.gov</a>)</p><p>-- Next week (8/27 - 9/2) in 1985: <em>Big Astronaut, Little Astronaut</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>When a pair of cubesats lost their place as a ridealong, NASA asked Rocket Lab to give them a glowup!</itunes:subtitle><itunes:summary>When a pair of cubesats lost their place as a ridealong, NASA asked Rocket Lab to give them a glowup!</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>01:14:13</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1724196510539-BIHTOZEO03ONQOA3692N/escapade-assemble-1.jpg?format=1500w"/><itunes:title>Episode 473: DOWNLINK--Rocket Lab's EscaPADE Team</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66c55586826a0c291d774ddd/1724208585846/Episode-473.mp3" length="62347046" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66c55586826a0c291d774ddd/1724208585846/Episode-473.mp3" length="62347046" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 473: DOWNLINK--Rocket Lab's EscaPADE Team</media:title></media:content></item><item><title>Episode 472: Megadebris</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 14 Aug 2024 01:06:14 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/megadebris</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:66bbfb8cdae7b16c6b8de8c6</guid><description><![CDATA[<p><strong>Spaceflight News</strong></p><p>-- Megadebris? (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://slingshot.space">slingshot.space</a>)</p><p><strong>Short &amp; Sweet</strong></p><p>-- NEOWISE ends operations (<a href="http://space.com">space.com</a>) (<a href="http://spaceflightnow.com">spaceflightnow.com</a>)</p><p>-- Starliner still stuck at Station (<a href="https://spaceflightnow.com/2024/08/07/nasa-getting-more-serious-about-backup-plan-to-bring-starliner-astronauts-home-if-needed/">spaceflightnow</a>)</p><p><strong>Questions, Comments, Corrections</strong></p><p>-- From Upcoming Spaceflight Events:</p><p>    -- JUICE Earth flyby #1 on Aug 19/20 (<a href="http://esa.int">esa.int</a>)</p><p>    -- Online FAA meeting RE: Starship launch cadence on Aug 20 (<a href="http://faa.gov">faa.gov</a>)</p><p><strong>This Week in Spaceflight History</strong></p><p>-- August 15, 1969: Creation of ISRO (<a href="http://en.wikipedia.org">en.wikipedia.org</a>) (<a href="http://britannica.com">britannica.com</a>)</p><p>-- Next week (8/20 - 8/26) in 1958: Catching a second wind</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>A megaconstellation launch apparently had an unannounced ridealong: lots of debris. Also, the end of NEOWISE, and not the end of Starliner's mission.</itunes:subtitle><itunes:summary>A megaconstellation launch apparently had an unannounced ridealong: lots of debris. Also, the end of NEOWISE, and not the end of Starliner's mission.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:31:29</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1723595730446-ZSURWL9T6DJR5AYCC0Z0/2psxGNcDRP6BDLRxRZLYHd-1200-80.jpg?format=1500w"/><itunes:title>Episode 472: Megadebris</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66bc02d4163e4d4da1998750/1723597553644/Episode-472.mp3" length="26450361" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66bc02d4163e4d4da1998750/1723597553644/Episode-472.mp3" length="26450361" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 472: Megadebris</media:title></media:content></item><item><title>Episode 471: Rubber Baby Whipple Bumper</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 07 Aug 2024 02:11:27 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/rubber-baby-whipple-bumper</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:66b29c9fb96f3a758c28b620</guid><description><![CDATA[<p><strong>Spaceflight News</strong></p><p>-- ADRAS-J rendezvous (HT Zach: <a href="http://twitter.com/CRD2_JAXA">twitter.com/CRD2_JAXA</a>) (<a href="http://astroscale.com">astroscale.com</a>) (PDF: <a href="http://astroscale.com">astroscale.com</a> VIA <a href="http://astroscale.com">astroscale.com</a>)</p><p><strong>Short &amp; Sweet</strong></p><p>-- POLARIS spaceplane startup back on track (<a href="http://europeanspaceflight.com">europeanspaceflight.com</a>)</p><p>-- Dawn does docking (<a href="http://spacenews.com">spacenews.com</a>)</p><p><strong>Questions, Comments, Corrections</strong></p><p>-- From the intro: JWST looks at Epsilon Indi A (<a href="http://nasaspaceflight.com">nasaspaceflight.com</a>)</p><p>-- Ryan R: TEA-TEB is a pre-mixed fluid (<a href="http://discord.com">discord.com</a>)</p><p><strong>This Week in Spaceflight History</strong></p><p>-- 10 Aug, 1992. Launch of the first major oceanographic research satellite, TOPEX/Poseidon (<a href="http://en.wikipedia.org">en.wikipedia.org</a>) (<a href="http://jpl.nasa.gov">jpl.nasa.gov</a>) (<a href="http://eoportal.org">eoportal.org</a>) (<a href="http://aviso.altimetry.fr">aviso.altimetry.fr</a>)</p><p>    -- T/P data is used in this sea level rise dashboard (<a href="http://climate.nasa.gov">climate.nasa.gov</a>)</p><p>-- Next week (8/13 - 8/19) in 1969: <em>This agency is ro-bust</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>We were wowed by ADRAS-J's fly-around footage. Also, POLARIS takes delivery of airframes, and Dawn reveals a docking standard.</itunes:subtitle><itunes:summary>We were wowed by ADRAS-J's fly-around footage. Also, POLARIS takes delivery of airframes, and Dawn reveals a docking standard.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:38:32</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1722981806594-TUJFXEFERCXNSC34PILK/ezgif-5-2864954f10.gif?format=1500w"/><itunes:title>Episode 470: DOWNLINK--Rubber Baby Whipple Bumper</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66b2d6b6260d884d777602de/1722996450042/Episode-471.mp3" length="32376395" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66b2d6b6260d884d777602de/1722996450042/Episode-471.mp3" length="32376395" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 470: DOWNLINK--Rubber Baby Whipple Bumper</media:title></media:content></item><item><title>Episode 470: DOWNLINK--Martin Frederick</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 31 Jul 2024 01:47:18 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/martin-frederick</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:66a956e2689a2541a6884dd2</guid><description><![CDATA[<p><strong>Spaceflight News</strong></p><p>-- Falcon 9 Return to Flight (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://nasaspaceflight.com">nasaspaceflight.com</a>) (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://nasaspaceflight.com">nasaspaceflight.com</a>)</p><p><strong>Short &amp; Sweet</strong></p><p>-- ABL Static fire failure (<a href="http://spacenews.com">spacenews.com</a>)</p><p>-- Starliner Debugging (<a href="http://spacenews.com">spacenews.com</a>)</p><p><strong>Questions, Comments, Corrections</strong></p><p>-- The RAX bug was caused by differing clocks (<a href="http://youtube.com">youtube.com</a>)</p><p><strong>Interview -- Martin Frederick, Northrop Grumman Corporate Director, Civil Space Programs</strong></p><p><a href="http://linkedin.com">-- linkedin.com</a></p><p>-- Further reading:</p><p>    -- JWST (<a href="http://northropgrumman.com">northropgrumman.com</a>)</p><p>    -- TRMM (<a href="http://gpm.nasa.gov">gpm.nasa.gov</a>) (<a href="http://trmm.gsfc.nasa.gov">trmm.gsfc.nasa.gov</a>)</p><p><strong>This Week in Spaceflight History</strong></p><p>-- July 31, 1992: Launch of Atlantis on STS-46 (<a href="http://en.wikipedia.org">en.wikipedia.org</a>)&nbsp; (<a href="http://americaspace.com">americaspace.com</a>)</p><p>    -- EURECA was also the subject of a TWSF about STS-57 (<a href="http://theorbitalmechanics.com">theorbitalmechanics.com</a>)</p><p>    -- TSS-1 was also the subject of a TWSF about STS-75 (<a href="http://theorbitalmechanics.com">theorbitalmechanics.com</a>)</p><p>-- Next week (8/6 - 8/12) in 1992: The zeroth argonaut.</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Martin is Northrop Grumman's Corporate Director, Civil Space Programs. He's also been an engineer at NASA Goddard and HQ for decades.</itunes:subtitle><itunes:summary>Martin is Northrop Grumman's Corporate Director, Civil Space Programs. He's also been an engineer at NASA Goddard and HQ for decades.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>01:24:25</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1722374090529-JX3K8LYGLN8GGLLU7OOS/Marty+JWST+Sunshield+Pic.jpg?format=1500w"/><itunes:title>Episode 470: DOWNLINK--Martin Frederick</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66a996e1f71e111cc7d6f970/1722390304395/Episode-470.mp3" length="70913538" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66a996e1f71e111cc7d6f970/1722390304395/Episode-470.mp3" length="70913538" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 470: DOWNLINK--Martin Frederick</media:title></media:content></item><item><title>Episode 469: Runk</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 24 Jul 2024 01:12:34 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/runk</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:66a052e4b256453d63bbb5b2</guid><description><![CDATA[<p><strong>Spaceflight News</strong></p><p>-- NASA nixes VIPER (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://newscientist.com">newscientist.com</a>)</p><p><strong>European Short &amp; Sweet</strong></p><p>-- Ariane 6 may carry crew (<a href="http://europeanspaceflight.com">europeanspaceflight.com</a>)</p><p>-- Europe announces RAMSES mission to Apophis (<a href="http://arstechnica.com">arstechnica.com</a>) (<a href="http://esa.int">esa.int</a>)</p><p>-- Themis gets delayed (<a href="http://europeanspaceflight.com">europeanspaceflight.com</a>)</p><p><strong>This Week in Spaceflight History</strong></p><p>-- 29 Jul, 1999. Deep Space 1, NASA’s first S/C with ion propulsion, flies by asteroid 9969 Braille (<a href="http://en.wikipedia.org">en.wikipedia.org</a>)</p><p>    -- We interviewed DS-1’s chief mission engineer and deputy mission manager Marc Rayman in Episode 75 (<a href="http://theorbitalmechanics.com">theorbitalmechanics.com</a>)</p><p>    -- Ron Garret discussed the RAX bug in his talk <em>The Remote Agent Experiment</em> (<a href="http://youtube.com">youtube.com</a>)</p><p>-- Next week (7/30 - 8/5) in 1992: We’ll hang on to this one, and come back for that one later</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>VIPER is being sold for parts. Also, a crewed Ariane 6, a mission to Apophis, and a Themis delay</itunes:subtitle><itunes:summary>VIPER is being sold for parts. Also, a crewed Ariane 6, a mission to Apophis, and a Themis delay</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:53:18</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1721783188111-0Q16QJU9WGVBG7S8UBHF/ezgif-4-b281fccd4b.jpg?format=1500w"/><itunes:title>Episode 469: Runk</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66a05481cb2ace32c9c9192c/1721783477778/Episode-469.mp3" length="44780692" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66a05481cb2ace32c9c9192c/1721783477778/Episode-469.mp3" length="44780692" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 469: Runk</media:title></media:content></item><item><title>Episode 468: Upper Stage Downer</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 17 Jul 2024 01:30:55 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/upper-stage-downer</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:6695cc4567e2431850ed00e4</guid><description><![CDATA[<p><strong>Spaceflight News</strong></p><p>-- Falcon 9 Failure (<a href="http://spacenews.com">spacenews.com</a>)&nbsp; (<a href="http://spaceflightnow.com">spaceflightnow.com</a>)</p><p>-- Ariane 6 anomaly (<a href="http://europeanspaceflight.com">europeanspaceflight.com</a>) (<a href="http://spaceflightnow.com">spaceflightnow.com</a>)</p><p>-- Hyperbola-1 mishap (<a href="http://spacenews.com">spacenews.com</a>)</p><p><strong>Short &amp; Sweet</strong></p><p>-- Europa Clipper faces last-minute obstacle (<a href="http://space.com">space.com</a>)</p><p>-- Dawn gets green light for spaceplane tests (<a href="http://spacenews.com">spacenews.com</a>)</p><p><strong>This Week in Spaceflight History</strong></p><p>-- 17 July, 1977. First launch of a complete TKS spacecraft (<a href="http://en.wikipedia.org">en.wikipedia.org</a>) (<a href="http://russianspaceweb.com">russianspaceweb.com</a>) (<a href="http://nasa.gov">nasa.gov</a>)</p><p>-- Next week (7/23 - 7/29) in 1999: <em>Is that a grid of dots on that asteroid?</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Three different space companies had upper stage failures this week! Also, Europa Clipper's radiation struggle and Aurora's certification.</itunes:subtitle><itunes:summary>Three different space companies had upper stage failures this week! Also, Europa Clipper's radiation struggle and Aurora's certification.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:33:31</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1721093352898-Y2XD67DLS5GPI1T58POY/ezgif-7-5c5a339b29.jpg?format=1500w"/><itunes:title>Episode 468: Upper Stage Downer</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66a00cd1b256453d63a1cad3/1721765099098/Episode-468.mp3" length="28165926" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66a00cd1b256453d63a1cad3/1721765099098/Episode-468.mp3" length="28165926" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 468: Upper Stage Downer</media:title></media:content></item><item><title>Episode 467: DOWNLINK--MSI-DFAT</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 10 Jul 2024 00:38:39 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/msi-dfat</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:668db5123e3be302855868fb</guid><description><![CDATA[<p><strong>Spaceflight News</strong></p><p>-- Luch (Olymp) 2 “caught” snooping (<a href="http://sattrackcam.blogspot.com">sattrackcam.blogspot.com</a>) (<a href="http://sattrackcam.blogspot.com">sattrackcam.blogspot.com</a>) (<a href="http://russianspaceweb.com">russianspaceweb.com</a>) (<a href="http://thespacereview.com">thespacereview.com</a>)</p><p><strong>Short &amp; Sweet</strong></p><p>-- The Poles make it to space! (<a href="http://europeanspaceflight.com">europeanspaceflight.com</a>)</p><p>-- ISRO announces major size increase to Indian space station (<a href="http://x.com/ISROSpaceflight">x.com/ISROSpaceflight</a>)</p><p><strong>Interview --&nbsp; MSI-DFAT</strong></p><p>-- We talked to:</p><p>    -- Alex Carrella, VP Strategy &amp; Growth</p><p>    -- Bradley Hope, Business Manager</p><p>    -- Max Myers, Systems Engineer/Lead Rigger</p><p>-- Before DFAT (and RFAT), we had feet. (<a href="http://youtube.com">youtube.com</a>)</p><p>-- <a href="http://msidfat.com">msidfat.com</a></p><p>-- <a href="http://linktr.ee/msidfat">linktr.ee/msidfat</a></p><p><strong>This Week in Spaceflight History</strong></p><p>-- July 12, 2001. Launch of Artemis GEO satellite (<a href="http://en.wikipedia.org">en.wikipedia.org</a>) (<a href="http://esa.int">esa.int</a>) (PDF: <a href="http://esa.int">esa.int</a>)</p><p>-- Next week (7/16 - 7/22) in 1977: <em>One month now, 312 months later</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:explicit>false</itunes:explicit><itunes:duration>01:26:10</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1720563473204-XZCHMXIEX08YMKJILH26/bff7c0_b29c14d8c7e3493c882bcdb58c5e2cac%7Emv2.jpg?format=1500w"/><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/668dd79dce1de727abf8d42f/1720571882370/Episode-467.mp3" length="72379321" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/668dd79dce1de727abf8d42f/1720571882370/Episode-467.mp3" length="72379321" type="audio/mpeg" isDefault="true" medium="audio"/></item><item><title>Episode 466: All Aboard?</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 03 Jul 2024 00:57:31 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/all-abord</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:66848af717601d3318d2e468</guid><description><![CDATA[<p><strong>Spaceflight News</strong></p><p>-- The Vulcan train is leaving the station (<a href="http://spacenews.com">spacenews.com</a>)</p><p><strong>Short &amp; Sweet</strong></p><p>-- Starliner’s extended-er ISS stay (<a href="http://spacenews.com">spacenews.com</a>)</p><p>-- A not-so-static test fire (<a href="http://spacenews.com">spacenews.com</a>)</p><p>-- Resurs P1 breaks up (<a href="http://spacenews.com">spacenews.com</a>)</p><p><strong>Questions, Comments, Corrections</strong></p><p>-- From the intro: (<a href="http://americaspace.com">americaspace.com</a>)</p><p><strong>This Week in Spaceflight History</strong></p><p>-- 8 July, 1994. Launch of STS-65 (<a href="http://en.wikipedia.org">en.wikipedia.org</a>)</p><p>-- Next week (7/9 - 7/15) in 2001: <em>Spiraling into control</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Vulcan is leaving the station, and Dream Chaser is getting left behind. Also, Starliner again, Tianlong-3's early flight, and Resurs P1 breaks up.</itunes:subtitle><itunes:summary>Vulcan is leaving the station, and Dream Chaser is getting left behind. Also, Starliner again, Tianlong-3's early flight, and Resurs P1 breaks up.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:32:46</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1719962451387-HC9P4NXJCFBL470FCKY8/tianlong-3-first-stage-space-pioneer.jpg?format=1500w"/><itunes:title>Episode 466: All Aboard?</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6684a1cb020ce6315f3a8c2e/1719968228582/Episode-466.mp3" length="27535435" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6684a1cb020ce6315f3a8c2e/1719968228582/Episode-466.mp3" length="27535435" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 466: All Aboard?</media:title></media:content></item><item><title>Episode 465: Reflown Don</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 26 Jun 2024 00:41:22 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/reflown-don</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:667b5929172ec14d9469f68d</guid><description><![CDATA[<p><strong>Spaceflight News</strong></p><p>-- Long March 10 hot firing (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://weixin.qq.com">weixin.qq.com</a>) (<a href="http://youtube.com">youtube.com</a>) (<a href="http://spacenews.com">spacenews.com</a>)</p><p>-- Latest taikonaut class selected (<a href="http://space.com">space.com</a>)</p><p><strong>Short &amp; Sweet</strong></p><p>-- ESA gets involved in Vega C’s transfer (<a href="http://europeanspaceflight.com">europeanspaceflight.com</a>)</p><p>-- Ariane 6 gets dressed (<a href="http://spacenews.com">spacenews.com</a>)</p><p>-- Starliner’s extended ISS stay (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://spacenews.com">spacenews.com</a>)</p><p><strong>This Week in Spaceflight History</strong></p><p>-- Next week (7/1 - 7/8) in 1994: From rocket to lab</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>China's moon rocket gets closer to action. Also, Vega C's IP transfer, and Starliner's latest delay.</itunes:subtitle><itunes:summary>China's moon rocket gets closer to action. Also, Vega C's IP transfer, and Starliner's latest delay.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:25:19</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1719359892690-ZBLBYYJR41QRN0JD97GP/640.png?format=1500w"/><itunes:title>Episode 465: Reflown Don</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/667b63845af63879d2b33f03/1719362464094/Episode-465.mp3" length="21278064" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/667b63845af63879d2b33f03/1719362464094/Episode-465.mp3" length="21278064" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 465: Reflown Don</media:title></media:content></item><item><title>Episode 464: Starliner Seep</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 19 Jun 2024 01:24:30 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/starliner-seep</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:667203326be1326aab27c05a</guid><description><![CDATA[<p><strong>Spaceflight News</strong></p><p>-- Starliner OFT (<a href="http://americaspace.com">americaspace.com</a>) (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://americaspace.com">americaspace.com</a>) (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://nasaspaceflight.com">nasaspaceflight.com</a>) (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://spacenews.com">spacenews.com</a>) (HT deltaV: <a href="http://twitter.com/cbs_spacenews">twitter.com/cbs_spacenews</a>) (<a href="http://twitter.com/SciGuySpace">twitter.com/SciGuySpace</a>)</p><p>    -- Suni Williams gave a tour on orbit (HT Dennis O: <a href="http://youtube.com">youtube.com</a>)</p><p><strong>Short &amp; Sweet</strong></p><p>-- Chinese space plane proximity ops (<a href="http://sattrackcam.blogspot.com">sattrackcam.blogspot.com</a>)</p><p>-- NASA selects companies to explore Mars Sample Return methods (<a href="http://nasa.gov">nasa.gov</a>) (<a href="http://spacenews.com">spacenews.com</a>)</p><p>-- VOYAGER’S BACK!!! (<a href="http://spacenews.com">spacenews.com</a>)</p><p><strong>Questions, Comments, Corrections</strong></p><p>-- From the intro: ISS replicates War of the Worlds radio drama (<a href="http://space.com">space.com</a>) (<a href="http://twitter.com/airplaneian">twitter.com/airplaneian</a>)</p><p><strong>This Week in Spaceflight History</strong></p><p>-- 24 Jun, 1982. Soyuz T-6 carries Jean-Loup Chrétien, the first Frenchman, to Salyut 7 (<a href="http://en.wikipedia.org">en.wikipedia.org</a>) (<a href="http://spacefacts.de">spacefacts.de</a>)</p><p>-- Next week (6/25 - 7/1) in 1983: <em>Six seconds calls for vodka</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Starliner has made it to ISS! Also, China's spaceplane, MSR alternatives, and VOYAGER'S BACK BAYBEEEEE!</itunes:subtitle><itunes:summary>Starliner has made it to ISS! Also, China's spaceplane, MSR alternatives, and VOYAGER'S BACK BAYBEEEEE!</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:42:38</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1718748067940-65WMJJTZ26E5E77XEEX8/Boeings_Starliner_crew_ship_approaches_the_space_station_iss067e066735_cropped-1920x1327.jpg?format=1500w"/><itunes:title>Episode 464: Starliner Seep</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/667231e9c98cf173348eea3c/1718760228378/Episode-464.mp3" length="35818498" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/667231e9c98cf173348eea3c/1718760228378/Episode-464.mp3" length="35818498" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 464: Starliner Seep</media:title></media:content></item><item><title>Episode 463: The Camera That Could</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 12 Jun 2024 01:23:47 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/the-camera-that-could</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:6668d76371abe42872120b07</guid><description><![CDATA[<p><strong>Spaceflight News</strong></p><p>-- Starship Test Flight 4 (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://nasaspaceflight.com">nasaspaceflight.com</a>) (<a href="http://youtube.com">youtube.com</a>) (<a href="http://spacey.space/@spmttracker">spacey.space/@spmttracker</a>)</p><p><strong>Short &amp; Sweet</strong></p><p>-- Vast plans for ESA (<a href="https://spacenews.com/esa-and-vast-to-study-cooperation-on-future-commercial-space-stations/">spacenews</a>)</p><p>-- Chang’e-6 has its moon rocks (<a href="https://spacenews.com/change-6-moon-samples-collected-and-launched-into-lunar-orbit/">spacenews</a>) (<a href="http://spacenews.com">spacenews.com</a>)</p><p>-- Hubble Hobble (<a href="http://spacenews.com">spacenews.com</a>)</p><p><strong>Questions, Comments, Corrections</strong></p><p>-- RIP Bill Anders (<a href="http://apnews.com">apnews.com</a>)</p><p>-- Traches: Relativity and Novas (<a href="http://discord.com">discord.com</a>)</p><p><strong>This Week in Spaceflight History</strong></p><p>-- 11 June, 2008. Launch of the Fermi Gamma-Ray Space Telescope (<a href="http://en.wikipedia.org">en.wikipedia.org</a>) (<a href="http://nasa.gov">nasa.gov</a>)</p><p>-- Next week (6/18 - 6/24) in 1982: <em>First wolf in space?</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Starship completed a successful test flight! Also, ESA+Vast, Chang'e liftoff, and Hubble's gyros.</itunes:subtitle><itunes:summary>Starship completed a successful test flight! Also, ESA+Vast, Chang'e liftoff, and Hubble's gyros.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:47:33</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1718147033310-RXB3ARQ8JR54I35N2OH0/CE-6-lander-imaged-by-rover-CNSA-CLEP-june2024.jpg?format=1500w"/><itunes:title>Episode 463: The Camera That Could</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6668f87191427678693ba8aa/1718155407413/Episode-463.mp3" length="39953995" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6668f87191427678693ba8aa/1718155407413/Episode-463.mp3" length="39953995" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 463: The Camera That Could</media:title></media:content></item><item><title>Episode 462: Oh, Dear, No Moon</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 05 Jun 2024 00:25:01 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/oh-dear-no-moon</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:665f7e10b62cae0c0e1a2cae</guid><description><![CDATA[<p><strong>Spaceflight News</strong></p><p>-- ThinkSubOrbital (<a href="http://spacenews.com">spacenews.com</a>) (PDF: <a href="http://nasa.gov">nasa.gov</a>) (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://youtube.com">youtube.com</a>) (<a href="http://sbir.gov">sbir.gov</a>) (<a href="http://sbir.gov">sbir.gov</a>)</p><p><strong>Short &amp; Sweet</strong></p><p>-- Starliner scrub (<a href="http://americaspace.com">americaspace.com</a>) (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://spacenews.com">spacenews.com</a>)</p><p>-- Indian startup Agnikul Notches launches first flight (<a href="http://payloadspace.com">payloadspace.com</a>)</p><p><strong>Questions, Comments, Corrections</strong></p><p>-- From the intro:</p><p>-- Chang’e 6 landing (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://spacenews.com">spacenews.com</a>)</p><p>-- Dear Moon canceled (<a href="http://spacenews.com">spacenews.com</a>)</p><p>-- Deathkin via <a href="http://discord.com">discord.com</a>: Centaur’s not a workhorse</p><p>-- Heads up for a recurrent nova! (<a href="http://planetary.org">planetary.org</a>)</p><p><strong>This Week in Spaceflight History</strong></p><p>-- 8 June in 1959: Regulus Missile Mail (HT SciKyle: <a href="http://postalmuseum.si.edu">postalmuseum.si.edu</a>)</p><p>-- Next week (6/11 - 6/17) in 2008: <em>A salty Italian</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>ThinkOrbital plans to use their welder as an X-ray scanner! Also, keeping up with the Starliner Scrubs and Agnikul Notches lifts off.</itunes:subtitle><itunes:summary>ThinkOrbital plans to use their welder as an X-ray scanner! Also, keeping up with the Starliner Scrubs and Agnikul Notches lifts off.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:37:09</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1717534551992-GK15DUWCHETI3XI11H8R/ezgif-5-05976a4d38.jpg?format=1500w"/><itunes:title>Episode 462: Oh, Dear, No Moon</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/665fb01654f1fd2420a01e4b/1717547060226/Episode-462.mp3" length="31214521" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/665fb01654f1fd2420a01e4b/1717547060226/Episode-462.mp3" length="31214521" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 462: Oh, Dear, No Moon</media:title></media:content></item><item><title>Episode 461: DOWNLINK--Justin Fiaschetti</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 29 May 2024 02:12:38 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/inversion</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:66564f700a94fb2fa59bf505</guid><description><![CDATA[<p><strong>Spaceflight News</strong></p><p>-- More Starliner Delays (<a href="http://spacenews.com">spacenews.com</a>) (HT deltaV: <a href="http://twitter.com/jeff_foust">twitter.com/jeff_foust</a>) (<a href="http://spacenews.com">spacenews.com</a>) (HT deltaV: <a href="https://arstechnica.com">https://arstechnica.com</a>)</p><p><strong>Short &amp; Sweet</strong></p><p>-- U.S. accuses Russia of launching countersat weapon (<a href="http://spacenews.com">spacenews.com</a>) (<a href="http://payloadspace.com">payloadspace.com</a>)&nbsp;</p><p>-- Redwire wins award for European lunar lander’s robot arm (<a href="http://europeanspaceflight.com">europeanspaceflight.com</a>)</p><p><strong>Questions, Comments, Corrections</strong></p><p>-- From the intro: Bepi-Colombo power failure (<a href="http://esa.int">esa.int</a>)</p><p>-- Ryan R: Technology Connections talked about heterodyne radios (<a href="http://youtube.com">youtube.com</a> VIA <a href="http://discord.com">discord.com</a>)</p><p><strong>Interview --&nbsp; Justin Fiaschetti, CEO and Co-Founder of Inversion</strong></p><p><a href="http://twitter.com/InversionSpace">-- twitter.com/InversionSpace</a></p><p><a href="http://inversionspace.com">-- inversionspace.com</a></p><p><a href="http://linkedin.com">-- linkedin.com</a></p><p><a href="http://linkedin.com">-- linkedin.com</a>&nbsp;</p><p>This Week in Spaceflight History</p><p>-- &nbsp;2 Jun, 2003. Launch of Mars Express (<a href="http://en.wikipedia.org">en.wikipedia.org</a>) (<a href="http://russianspaceweb.com">russianspaceweb.com</a>) (<a href="http://universetoday.com">universetoday.com</a>)</p><p>-- Next week (6/4 - 6/10) in 1959: <em>A short-term version of the above</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Hoping to capitalize on new mid-size LEO capacity, Justin started a company to store materials on orbit for rapid delivery anywhere on Earth.</itunes:subtitle><itunes:summary>Hoping to capitalize on new mid-size LEO capacity, Justin started a company to store materials on orbit for rapid delivery anywhere on Earth.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>01:23:56</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1716932617216-JBYDKI1NMN7JFC5HH97M/Inversion+Ray.jpg?format=1500w"/><itunes:title>Episode 461: DOWNLINK--Justin Fiaschetti</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66568e7fb0a57c192199fc63/1716948667494/Episode-461.mp3" length="70517469" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66568e7fb0a57c192199fc63/1716948667494/Episode-461.mp3" length="70517469" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 461: DOWNLINK--Justin Fiaschetti</media:title></media:content></item><item><title>Episode 460: 90 years, 105 km</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Tue, 21 May 2024 23:50:43 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/90years-150km</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:664d0c15e4611b53d379f27e</guid><description><![CDATA[<p><strong>Spaceflight News</strong></p><p>-- NASA Joins Rosalind Franklin Team (<a href="http://spacenews.com">spacenews.com</a>)</p><p>-- Unknown Russian sat launched (<a href="http://sattrackcam.blogspot.com">sattrackcam.blogspot.com</a>) (<a href="http://russianspaceweb.com">russianspaceweb.com</a>)</p><p><strong>Short &amp; Sweet</strong></p><p>-- Georgia scraps Spaceport Camden (<a href="http://actionnewsjax.com">actionnewsjax.com</a>)</p><p>-- Starliner leaks Helium (<a href="https://spacenews.com/helium-leak-delays-starliner-crewed-test-flight/">spacenews</a>)</p><p><strong>This Week in Spaceflight History</strong></p><p>-- 27 May, 1999: The launch of STS-96 (<a href="http://nasa.gov">nasa.gov</a>) (<a href="http://nss.org">nss.org</a>) (<a href="http://eoportal.org">eoportal.org</a>) (<a href="http://nasa.gov">nasa.gov</a>) (<a href="http://youtu.be">youtu.be</a>)</p><p>-- Next week (5/28 - 6/3) in 2003: <em>The last opportunity that was this good was 60,000 years ago</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>NASA's onboard for Rosalind Franklin, and an unknown Russian satellite is on orbit.</itunes:subtitle><itunes:summary>NASA's onboard for Rosalind Franklin, and an unknown Russian satellite is on orbit.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:42:59</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1716328966480-GA7RXU2Y12L5NP1R6UGP/99pp0349.jpg?format=1500w"/><itunes:title>Episode 460: 90 years, 105 km</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/664d32cf5759db75fef4a74b/1716335342317/Episode-460.mp3" length="36112166" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/664d32cf5759db75fef4a74b/1716335342317/Episode-460.mp3" length="36112166" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 460: 90 years, 105 km</media:title></media:content></item><item><title>Episode 459: DOWNLINK--Adam Higginbotham</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 15 May 2024 01:52:53 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/adam-higginbotham</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:6643d889d6e9090c5649f324</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Chang’e-6 mission underway (<a href="https://spacenews.com/chinas-change-6-is-carrying-a-surprise-rover-to-the-moon/">spacenews.com</a>) (<a href="https://spacenews.com/change-6-enters-lunar-orbit-ahead-of-far-side-landing-attempt/">spacenews.com</a>) (<a href="https://www.nature.com/articles/s41550-023-02038-1">nature.com</a>) (<a href="https://spacenews.com/chinas-change-6-is-carrying-a-surprise-rover-to-the-moon/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Starliner delayed (<a href="https://spacenews.com/starliner-mission-to-be-first-crewed-atlas-5-flight/">spacenews.com</a>) (<a href="https://www.nasaspaceflight.com/2024/05/starliner-cft-launch/">nasaspaceflight.com</a>) (<a href="https://spacenews.com/rocket-issue-scrubs-launch-of-starliner-crewed-test-flight/">spacenews.com</a>) (<a href="https://www.americaspace.com/2024/05/07/cft-starliner-launch-scrubbed-next-attempt-net-friday/">americaspace.com</a>) (<a href="https://spacenews.com/starliner-launch-delayed-to-mid-may/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Long March 6C makes first flight (<a href="https://news.cgtn.com/news/2024-05-07/China-launches-new-Long-March-6C-puts-4-satellites-into-orbit-1tpcKSLcmXe/p.html">cgtn.com</a>) (<a href="https://spacenews.com/china-launches-first-long-march-6c-rocket/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Neutron debut slips into 2025 (<a href="https://payloadspace.com/rocket-lab-throws-in-the-towel-on-2024-neutron-launch/">payloadspace.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— From the intro: Zubrin opinion piece on MSR (<a href="https://spacenews.com/practical-approach-mars-sample-return-mission/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Interview -- Adam Higginbotham</strong></p><p class="" style="white-space:pre-wrap;">— Preorder Challenger: A True Story of Heroism &amp; Disaster on the Edge of Space (<a href="https://www.simonandschuster.com/books/Challenger/Adam-Higginbotham/9781982176617">simonandschuster.com</a>)</p><p class="" style="white-space:pre-wrap;">— <a href="http://adamhigginbotham.com">adamhigginbotham.com</a></p><p class="" style="white-space:pre-wrap;">— <a href="https://twitter.com/HigginbothamA">twitter.com/HigginbothamA</a></p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 14 May, 2009: Launch of Herschel Space Observatory (<a href="https://en.wikipedia.org/wiki/Herschel_Space_Observatory">en.wikipedia.org</a>) (<a href="https://www.cosmos.esa.int/documents/12133/996743/Report+of+Investigation+on+Herschel+HIFI+instrument+failure">cosmos.esa.int</a>) (<a href="https://www.planetary.org/articles/20130608-goodnight-herschel-observatory">planetary.org</a>)&nbsp;</p><p class="" style="white-space:pre-wrap;">— Next week (5/21 - 5/27) in 1999: <em>Putting schoolchildren to work</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Adam Higginbotham is known for his prior book, a deep dive into Chernobyl. Now, he's publishing Challenger: A True Story of Heroism.</itunes:subtitle><itunes:summary>Adam Higginbotham is known for his prior book, a deep dive into Chernobyl. Now, he's publishing Challenger: A True Story of Heroism.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>01:22:49</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1715722574221-1BHFINTRJVGYRMWU0WGZ/bitmap.jpg?format=1500w"/><itunes:title>Episode 459: DOWNLINK--Adam Higginbotham</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/664414f40e1efc052a25e13f/1715737913758/Episode-459.mp3" length="69564762" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/664414f40e1efc052a25e13f/1715737913758/Episode-459.mp3" length="69564762" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 459: DOWNLINK--Adam Higginbotham</media:title></media:content></item><item><title>Episode 458: Precise Ballpark</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 08 May 2024 01:37:46 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/precise-ballpark</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:663a93bc17079068f5ee3013</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Artemis I Lessons (<a href="https://spacenews.com/nasa-inspector-general-report-highlights-issues-with-orion-heat-shield/">spacenews.com</a>) (PDF: <a href="https://oig.nasa.gov/wp-content/uploads/2024/05/ig-24-011.pdf">oig.nasa.gov</a> VIA <a href="https://oig.nasa.gov/office-of-inspector-general-oig/audit-reports/nasas-readiness-for-the-artemis-ii-crewed-mission-to-lunar-orbit/">oig.nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Thunder from down under (<a href="https://www.abc.net.au/news/2024-05-03/koonibba-rocket-launch/103803278">abc.net.au</a>) (<a href="https://www.abc.net.au/news/2024-04-12/australias-first-locally-made-orbital-rocket-goes-vertical/103692582">abc.net.au</a>) (<a href="https://www.southernlaunch.space/news-feed/hyimpulse-successfully-launch-their-sr75-rocket-from-the-koonibba-test-range">southernlaunch.space</a>)</p><p class="" style="white-space:pre-wrap;">— JAXA’s SLIM survives third lunar night (<a href="https://www.japantimes.co.jp/news/2024/04/25/japan/science-health/japan-moon-lander-survives-third-lunar-night/">japantimes.co.jp</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— May 9, 1963: Launch of West Ford 2 (PDF: <a href="https://www.orbitaldebris.jsc.nasa.gov/Quarterly-News/pdfs/ODQNv17i4.pdf">orbitaldebris.jsc.nasa.gov</a> VIA <a href="https://orbitaldebris.jsc.nasa.gov/quarterly-news/#publications-2013">orbitaldebris.jsc.nasa.gov</a>) (<a href="https://en.wikipedia.org/wiki/Project_West_Ford">en.wikipedia.org</a>) (PDF: <a href="https://sci-hub.se/https://doi.org/10.1029/JZ068i007p01845">sci-hub.se</a>) (<a href="https://stuffin.space/?intldes=1963-014S&amp;search=westford">stuffin.space</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (5/14 - 5/20) in 2009: <em>The first space telescope</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>A third-party review of the work to be done before Artemis II shows exactly how much work NASA has on its hands. Also, HyImpulse and SLIM!</itunes:subtitle><itunes:summary>A third-party review of the work to be done before Artemis II shows exactly how much work NASA has on its hands. Also, HyImpulse and SLIM!</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:53:00</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1715115089828-ZGG49V2P3K6SONMT1CM7/ig-24-011+char+crop.jpg?format=1500w"/><itunes:title>Episode 458: Precise Ballpark</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/663ad7226433220004a0c0f0/1715132234720/Episode-458.mp3" length="44525789" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/663ad7226433220004a0c0f0/1715132234720/Episode-458.mp3" length="44525789" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 458: Precise Ballpark</media:title></media:content></item><item><title>Episode 457: DOWNLINK--Jeff Williams, Exum Instruments</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 01 May 2024 01:52:55 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/exum-instruments</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:66317cb0e56fd2656b3410c3</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Voyager is communicative! (<a href="https://blogs.nasa.gov/voyager/2024/04/22/nasas-voyager-1-resumes-sending-engineering-updates-to-earth/">blogs.nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;">— ESA debris removal mission finds a new target (<a href="https://www.satellitetoday.com/sustainability/2024/04/24/clearspace-1-mission-changes-objective-in-response-to-space-debris-collision/">satellitetoday.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— China releases a lunar landing update (<a href="https://spacenews.com/china-on-track-for-crewed-moon-landing-by-2030-space-official-says/">spacenews</a>)</p><p class="" style="white-space:pre-wrap;">— TESS enters safe mode… again (<a href="https://science.nasa.gov/missions/tess/nasas-tess-temporarily-pauses-science-observations/">nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— Dennis O: SOFIA clarifications (<a href="https://discord.com/channels/137948573605036033/137948573605036033/1232843831188127744">discord.com</a>) (<a href="https://www.youtube.com/watch?v=I-jVi_0fb3M">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;">— VAXheadroom shot SOFIA some footage in 2012 (<a href="https://www.youtube.com/watch?v=WJSos45tRLY">youtube.com</a>) (<a href="https://www.youtube.com/watch?v=35CER4Eo5bg">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Interview -- Jeff Williams, CEO/CTO Exum Instruments</strong></p><p class="" style="white-space:pre-wrap;">— Jeff co-authored a paper that is a good primer on spectroscopy and Massbox (<a href="https://www.spectroscopyonline.com/view/advances-trace-element-solid-sample-analysis-laser-ablation-laser-ionization-tof-mass-spectrometry-l">spectroscopyonline.com</a>)</p><p class="" style="white-space:pre-wrap;">— <a href="https://www.exuminstruments.com">exuminstruments.com</a>&nbsp;</p><p class="" style="white-space:pre-wrap;">— <a href="https://www.linkedin.com/in/jeffrey-williams-372118128">linkedin.com/in/jeffrey-williams-372118128</a>&nbsp;&nbsp;</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 9 Apr, 1999: Titan IVB (402) takes DSP-19 (USA 142) to GEO (<a href="http://www.astronautix.com/d/dsp.html">astronautix.com</a>) (<a href="https://klabs.org/DEI/lessons_learned/aerospace_corp/lessons_from_mistakes.pdf">klabs.org</a>)</p><p class="" style="white-space:pre-wrap;">— 30 Apr, 1999. Titan IVB (401) takes Milstar-3 (USA 143) to GEO (<a href="https://www.washingtonpost.com/archive/politics/1999/05/01/military-satellite-in-wrong-orbit/99803c3b-03b3-4758-bab0-4522e6ee0961/">washingtonpost.com</a>) (PDF: <a href="https://direct.mit.edu/books/oa-monograph/chapter-pdf/2280552/9780262298247_cav.pdf">direct.mit.edu</a> VIA <a href="https://direct.mit.edu/books/oa-monograph/2908/Engineering-a-Safer-WorldSystems-Thinking-Applied">direct.mit.edu</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (5/7 - 5/13) in 1963: <em>Not a good day for trypanophobics</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Learn with us about mass spectrometry's history and state of the art from someone building a desktop version.</itunes:subtitle><itunes:summary>Learn with us about mass spectrometry's history and state of the art from someone building a desktop version.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>01:42:39</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1714519456888-ZDKDGMC2MJLI1V9KYKZQ/Jeff+on+Massbox.jpg?format=1500w"/><itunes:title>Episode 457: DOWNLINK--Jeff Williams, Exum Instruments</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66319fdc9c0764759bcfeb24/1714528304283/Episode-457.mp3" length="86230384" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66319fdc9c0764759bcfeb24/1714528304283/Episode-457.mp3" length="86230384" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 457: DOWNLINK--Jeff Williams, Exum Instruments</media:title></media:content></item><item><title>Episode 456: Now With Trailer</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 24 Apr 2024 03:12:07 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/now-with-trailer</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:662832c6ee2f1a0dfea9282a</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Lunar buggy selection (<a href="https://spacenews.com/nasa-document-outlines-selection-of-lunar-rover-companies/">spacenews.com</a>) (PDF: <a href="https://sam.gov/api/prod/opps/v3/opportunities/resources/files/7103db2e560e4854aa84824e7e76c298/download?&amp;token=">sam.gov</a> VIA <a href="https://sam.gov/opp/68c8ce37ec2d40689a7335d5dbf1f6eb/view">sam.gov</a>) (<a href="https://twitter.com/DubnHG1/status/1488505978836463620">twitter.com/DubnHG1</a>) (<a href="https://asia.nikkei.com/Business/Aerospace-Defense-Industries/Toyota-Mitsubishi-Heavy-to-work-together-on-lunar-vehicles">nikkei.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Dragonfly mission officially confirmed (<a href="https://science.nasa.gov/missions/dragonfly/nasas-dragonfly-rotorcraft-mission-to-saturns-moon-titan-confirmed/">nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;">— Mars Sample Revamp (<a href="https://spacenews.com/nasa-to-look-for-new-options-to-carry-out-mars-sample-return-program/">spacenews.com</a>) (<a href="https://spacenews.com/nasa-open-to-significantly-reduced-return-of-mars-samples/">spacenews.com</a>) (<a href="https://spaceflightnow.com/2024/04/16/nasa-requests-proposals-to-reduce-cost-timeline-of-mars-sample-return-mission/">spaceflightnow.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— Unc Willy: Cape launch complexes (<a href="https://discord.com/channels/137948573605036033/137948573605036033/1230135007696126003">discord.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 26 Apr, 2007. First flight of SOFIA (<a href="https://en.wikipedia.org/wiki/Stratospheric_Observatory_for_Infrared_Astronomy">en.wikipedia.org</a>) (<a href="https://www.747sp.com/747sp-production-list/21441-306/">747sp.com</a>) (HT Colin: <a href="https://www.youtube.com/watch?v=eNjHvbqYkB0">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (4/30 - 5/6) in 1999: <em>Taped too tightly</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>We dig into the Lunar Terrain Vehicle Services source selection! Also Dragonfly confirmed and MSR revamping.</itunes:subtitle><itunes:summary>We dig into the Lunar Terrain Vehicle Services source selection! Also Dragonfly confirmed and MSR revamping.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>01:09:39</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1713910896455-AW2GELO4RXWVXGX7M80C/ezgif-6-a447e76fd7.jpg?format=1500w"/><itunes:title>Episode 456: Now With Trailer</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66287835450b7648d139d811/1713928300636/Episode-456.mp3" length="58516921" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/66287835450b7648d139d811/1713928300636/Episode-456.mp3" length="58516921" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 456: Now With Trailer</media:title></media:content></item><item><title>Episode 455: Cabbage Ditch</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 17 Apr 2024 00:54:53 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/cabbage-ditch</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:661f1baa39cd5a0398cf6cec</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Last Delta IV heavy (<a href="https://spacenews.com/end-of-an-era-delta-4-heavy-soars-one-last-time/">spacenews.com</a>) (<a href="https://www.americaspace.com/2024/04/09/for-final-time-ula-launches-most-metal-delta-iv-heavy-into-history">americaspace.com</a>) (<a href="https://www.nasaspaceflight.com/2024/04/delta-iv-final-flight/">nasaspaceflight.com</a>) (PDF: <a href="https://www.ulalaunch.com/docs/default-source/rockets/delta-iv-user's-guide.pdf">ulalaunch.com</a>) (<a href="https://arstechnica.com/space/2024/02/spacex-wants-to-take-over-a-florida-launch-pad-from-rival-ula/">arstechnica.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Relativity Space wins contract (<a href="https://spacenews.com/relativity-space-wins-8-7-million-u-s-air-force-contract-for-additive-manufacturing-research/">spacenews</a>)</p><p class="" style="white-space:pre-wrap;">— Japan secures a moon landing (<a href="https://spacenews.com/japanese-astronauts-to-land-on-moon-as-part-of-new-nasa-partnership/">spacenews</a>)</p><p class="" style="white-space:pre-wrap;">— Max Space Modules (<a href="https://spacenews.com/max-space-announces-plans-for-inflatable-space-station-modules/">spacenews</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— Csaba via Discord: SOIR means "evening" in French, pretty clever pun (<a href="https://discord.com/channels/137948573605036033/137948573605036033/1227558736478998579">discord.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 19 Apr, 1975. Launch of Aryabhata satellite (<a href="https://www.lowyinstitute.org/the-interpreter/aryabhata-remembering-india-s-first-satellite">lowyinstitute.org</a>) (<a href="https://www.ursc.gov.in/experimental-satellites/html/aryabhata.jsp">ursc.gov.in</a>) (<a href="https://en.wikipedia.org/wiki/Aryabhata_(satellite)">en.wikipedia.org</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (4/23 - 4/29) in 2007: Looking at stars through a wall</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>We say farewell to the Delta rocket. Also, Relativity Space's printing contract, Japan's moon landing, and Max' modules.</itunes:subtitle><itunes:summary>We say farewell to the Delta rocket. Also, Relativity Space's printing contract, Japan's moon landing, and Max' modules.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:29:06</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1713315107678-H03VCRM19TDU9FWKG99U/IMG_6496-1.jpg?format=1500w"/><itunes:title>Episode 455: Cabbage Ditch</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/661f1d8aec310a1bc3447c6c/1713315245297/Episode-455.mp3" length="24448441" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/661f1d8aec310a1bc3447c6c/1713315245297/Episode-455.mp3" length="24448441" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 455: Cabbage Ditch</media:title></media:content></item><item><title>Episode 454: Expendable Launchpad</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 10 Apr 2024 01:35:12 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/expendable-launchpad</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:6615d15ee808df72a5713e0e</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Broken records and Starship’s near future (<a href="https://www.nasaspaceflight.com/2024/04/spacex-quarter-1/">nasaspaceflight.com</a>) (<a href="https://spacenews.com/musk-outlines-plans-to-increase-starship-launch-rate-and-performance/">spacenews.com</a>) (<a href="https://www.nasaspaceflight.com/2024/04/flight-4-preparations/">nasaspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— New Shepard Plans Crewed Flight (<a href="https://spacenews.com/blue-origin-to-resume-crewed-new-shepard-flights/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Lunar Rover Mk 2 (<a href="https://spacenews.com/nasa-selects-three-companies-to-advance-artemis-lunar-rover-designs/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— &nbsp;April 11, 2006: Arrival of Venus Express at Venus (<a href="https://en.wikipedia.org/wiki/Venus_Express">en.wikipedia.org</a>) (PDF: <a href="https://sci.esa.int/documents/34571/36233/1567256526094-SivacWeb.pdf">sci.esa.int</a> VIA <a href="https://sci.esa.int/web/venus-express/-/41531-the-venus-express-spacecraft-system-design">sci.esa.int</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (4/16 - 4/22) in 1975: Add four to 100, multiply by eight, and then add 62,000</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>SpaceX breaks their own records, and a look at Starship's near future. Also, New Shepard plans and planned lunar rovers.</itunes:subtitle><itunes:summary>SpaceX breaks their own records, and a look at Starship's near future. Also, New Shepard plans and planned lunar rovers.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:47:39</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1712705969950-CUDYJU03CV84XVU9YPZE/GKcV931bMAAvlw1.jpg?format=1500w"/><itunes:title>Episode 454: Expendable Launchpad</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6615ec96d3ae2b70e6ed9abe/1712712888289/Episode-454.mp3" length="40031161" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6615ec96d3ae2b70e6ed9abe/1712712888289/Episode-454.mp3" length="40031161" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 454: Expendable Launchpad</media:title></media:content></item><item><title>Episode 453: Bleached?</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 03 Apr 2024 00:37:54 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/bleached</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:660c78b8b067a72b529698e0</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Orbital Reef Rundown (<a href="https://www.nature.com/articles/s41526-024-00363-x">nature.com</a>) (PDF: <a href="https://star.spaceops.org/user_manudownload.php?doc=556__nd2w00wx.pdf&amp;ved=2ahUKEwju1KyE456FAxVPBUQIHTQYB-QQFnoECBEQAQ&amp;usg=AOvVaw2dK3g9obFE7-jQt9SGBqsi">star.spaceops.org</a> VIA <a href="https://star.spaceops.org/paper_lists.php">star.spaceops.org</a>) (<a href="https://genesisesi.com/projects/sps/">genesisesi.com</a>)</p><p class="" style="white-space:pre-wrap;">— Artemis 3 now has 3 experiments (<a href="https://www.nasa.gov/news-release/nasa-selects-first-lunar-instruments-for-artemis-astronaut-deployment/">nasa.gov</a>) (<a href="https://www.hou.usra.edu/meetings/lpsc2019/pdf/2369.pdf">hou.usra.edu</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— A Rotating Detonation Rocket Engine flies for first time (HT Andrew Z: <a href="https://www.autoevolution.com/news/new-rotating-detonation-rocket-engine-flies-on-winged-drone-for-the-first-time-231434.html">autoevolution.com</a>)</p><p class="" style="white-space:pre-wrap;">— A Nascent Solution For Voyager 1 (<a href="https://spacenews.com/nasa-optimistic-about-resolving-voyager-1-computer-problem/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 6 Apr, 1965: Launch of Intelsat I, the first commercial satellite in GEO (<a href="https://en.wikipedia.org/wiki/Intelsat_I">en.wikipedia.org</a>) (<a href="http://web.archive.org/web/20100118182008/http://www.boeing.com/defense-space/space/bss/factsheets/376/earlybird/ebird.html">boeing.com</a>) (<a href="https://space.skyrocket.de/doc_sdat/intelsat-1.htm">space.skyrocket.de</a>) (<a href="http://astronautix.com/craft/intlsat1.htm">astronautix.com</a> VIA <a href="https://web.archive.org/web/20100116224556/http://astronautix.com/craft/intlsat1.htm">web.archive.org</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (4/9 - 4/15) in 2006: The mission that went to hell in 5 months</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>An update on the plans for Orbital Reef, and Artemis 3 science payloads. Also, a flying RDRE, and light at the end of Voyager 1's tunnel.</itunes:subtitle><itunes:summary>An update on the plans for Orbital Reef, and Artemis 3 science payloads. Also, a flying RDRE, and light at the end of Voyager 1's tunnel.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1712093447633-7Y0E9IN34Z106GME3VNM/new-rotating-detonation-rocket-engine-flies-on-winged-drone-for-the-first-time_4.jpg?format=1500w"/><itunes:title>Episode 453: Bleached?</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/660ca4a71bc408288d07960d/1712104647271/Episode-453.mp3" length="35702932" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/660ca4a71bc408288d07960d/1712104647271/Episode-453.mp3" length="35702932" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 453: Bleached?</media:title></media:content></item><item><title>Episode 452: Sticky PEZ</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 27 Mar 2024 01:25:33 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/sticky-pez</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:660374786618b827a6f40aae</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Starship IFT-3 (<a href="https://spacenews.com/starship-lifts-off-on-third-test-flight/">spacenews.com</a>) (<a href="https://twitter.com/Pockn_CG/status/1769057806022492396">twitter.com</a>) (<a href="https://youtu.be/1HAcza0nE34?t=477">youtu.be</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Euclid spacecraft addresses ice-buildup on optics (<a href="https://www.asdnews.com/news/aerospace/2024/03/19/operations-begin-deice-euclids-vision">asdnews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Ariane 6 coming together (<a href="https://www.esa.int/ESA_Multimedia/Images/2024/03/Ariane_6_core_for_first_flight">esa.int</a>)</p><p class="" style="white-space:pre-wrap;">— Soyuz aborts at the pad (<a href="https://spacenews.com/soyuz-launches-to-station-after-scrub/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— From the intro: launch escape slide (<a href="https://www.youtube.com/watch?v=9vKJQ9o1EjU">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 17 Mar, 2002. Launch of GRACE spacecraft (<a href="https://en.wikipedia.org/wiki/GRACE_and_GRACE-FO">en.wikipedia.org</a>) (PDF: <a href="https://grace.jpl.nasa.gov/system/internal_resources/details/original/97_GRACE_Fact_Sheet.pdf">nasa.gov</a>) (<a href="https://earth.esa.int/eogateway/missions/grace#instruments-section">esa.int</a>) (<a href="https://space.skyrocket.de/doc_sat/astrium_flexbus.htm">skyrocket.de</a>) (<a href="https://climate.nasa.gov/vital-signs/ice-sheets/?intent=121">nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (4/2 - 4/8) in 1965: <em>Catching GEO worms</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Starship went up for its third test flight. Also, Euclid's icy lenses, Ariane 6's progress, and Soyuz' abort.</itunes:subtitle><itunes:summary>Starship went up for its third test flight. Also, Euclid's icy lenses, Ariane 6's progress, and Soyuz' abort.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:40:39</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1711502476687-DHHI0RNWYRG20G3EITEI/ezgif-4-7e3f376086.jpg?format=1500w"/><itunes:title>Episode 452: Sticky PEZ</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6603754f6618b827a6f440e0/1711502701458/Episode-452.mp3" length="34148281" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6603754f6618b827a6f440e0/1711502701458/Episode-452.mp3" length="34148281" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 452: Sticky PEZ</media:title></media:content></item><item><title>Episode 451: DOWNLINK--Prof. Dante Lauretta</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 20 Mar 2024 00:56:23 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/dante-lauretta</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:65fa3098daeb2503517e47c1</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Interview — Professor Dante Lauretta</strong></p><p class="" style="white-space:pre-wrap;">— The Asteroid Hunter: A Scientist’s Journey to the Dawn of our Solar System <a href="https://www.hachettebookgroup.com/titles/dante-lauretta/the-asteroid-hunter/9781538722947/?lens=grand-central-publishing">(hachettebookgroup.com</a>)</p><p class="" style="white-space:pre-wrap;">— <a href="https://url.us.m.mimecastprotect.com/s/wBUUCwpyRpSX4OoDsVq0cR?domain=facebook.com/">facebook.com/AZAstrobiology</a></p><p class="" style="white-space:pre-wrap;">— <a href="https://url.us.m.mimecastprotect.com/s/7COPCxkz7kfKgGZ2Cv7mwt?domain=threads.net">threads.net/@azastrobiology</a></p><p class="" style="white-space:pre-wrap;">— <a href="https://url.us.m.mimecastprotect.com/s/rjMJCyPAJPtEQjYlSQrio1?domain=instagram.com/">instagram.com/azastrobiology</a></p><p class="" style="white-space:pre-wrap;">— Thanks to Grand Central Publishing (<a href="https://twitter.com/GrandCentralPub">twitter.com/GrandCentralPub</a>) (<a href="https://www.instagram.com/grandcentralpub">instagram.com/grandcentralpub</a>)</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Professor Dante Lauretta is a cosmochemist who lead the OSIRIS-REx mission. Learn with us about the origins of the planets and how we plan to sneeze on a second asteroid.</itunes:subtitle><itunes:summary>Professor Dante Lauretta is a cosmochemist who lead the OSIRIS-REx mission. Learn with us about the origins of the planets and how we plan to sneeze on a second asteroid.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:47:06</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1418314982417-0PNSD5LD6WLV5ZFEWTLM/TOM_2.jpg?format=1500w"/><itunes:title>Episode 451: DOWNLINK--Prof. Dante Lauretta</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/65fa33b05b4bcf1332b6ad7a/1710896083858/Episode-451.mp3" length="39568532" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/65fa33b05b4bcf1332b6ad7a/1710896083858/Episode-451.mp3" length="39568532" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 451: DOWNLINK--Prof. Dante Lauretta</media:title></media:content></item><item><title>Episode 450: Propane Rocket Accessories</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 13 Mar 2024 00:53:16 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/propane-rocket-accessories</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:65f0d14130ad15263f2b4232</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Stoke Space focusing on first stage (<a href="https://www.nasaspaceflight.com/2024/03/stoke-stage-2/">nasaspaceflight.com</a>) (<a href="https://youtu.be/P_S350j1HQA">youtu.be</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Tianhe’s solar arrays patched (<a href="https://www.space.com/china-shenzhou-17-astronauts-spacewalk-solar-array-repair">space.com</a>)</p><p class="" style="white-space:pre-wrap;">— Stratolaunch tests Talon (<a href="https://spacenews.com/stratolaunch-performs-first-powered-talon-flight/">spacenews.com</a>) (<a href="https://spacenews.com/ursa-majors-hadley-rocket-engine-flies-for-the-first-time/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Starship Flight 3 on its way (<a href="https://spacenews.com/spacex-adds-tests-to-next-starship-flight/">spacenews.com</a>) (<a href="https://www.space.com/spacex-starship-third-test-flight-objectives">space.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 16 Mar, 1966. Recovery of Veterok and Ugolyok, who to this day hold the record for longest canine spaceflight (Kosmos 110) (<a href="https://en.wikipedia.org/wiki/Kosmos_110">en.wikipedia.org</a>) (<a href="https://ru.wikipedia.org/wiki/%D0%9A%D0%BE%D1%81%D0%BC%D0%BE%D1%81-110">ru.wikipedia.org</a>) (<a href="https://veterok-ugolyok.gmik.ru/">veterok-ugolyok.gmik.ru</a>) (<a href="https://www.astronaut.ru/animals/text/2120.htm">astronaut.ru</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (3/19 - 3/25) in 2017: <em>Dry, wet, and lumpy</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Stoke Space adopts LNG for the first stage of their newly revealed Nova rocket. Also, a Chinese spacewalk, a Talon flight, and Starship prep.</itunes:subtitle><itunes:summary>Stoke Space adopts LNG for the first stage of their newly revealed Nova rocket. Also, a Chinese spacewalk, a Talon flight, and Starship prep.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:50:33</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1710281186440-PKOE1SRUVVLDR88SBHB0/GBfX0YiXgAAYSqP.jpg?format=1500w"/><itunes:title>Episode 450: Propane Rocket Accessories</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/65f0f8b560840e3fd0e7c8d9/1710291174221/Episode-450.mp3" length="42478521" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/65f0f8b560840e3fd0e7c8d9/1710291174221/Episode-450.mp3" length="42478521" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 450: Propane Rocket Accessories</media:title></media:content></item><item><title>Episode 449: All Jacked Up</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 06 Mar 2024 02:10:02 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/all-jacked-up</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:65e7ca80b567545b39442633</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Last big IM-1 update (<a href="https://arstechnica.com/space/2024/02/it-turns-out-that-odysseus-landed-on-the-moon-without-any-altimetry-data/">arstechnica.com</a>) (<a href="https://twitter.com/jeff_foust/status/1762918607330099632">twitter.com/jeff_foust</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Orion has hatch problems (<a href="https://spacenews.com/nasa-studying-issues-with-orion-hatch-design/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— ISRO plans for Mars helicopter (<a href="https://www.indiatoday.in/science/story/isro-will-send-a-uav-to-fly-on-mars-with-next-mangalyaan-mission-2504224-2024-02-19">indiatoday.in</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— Varda landing footage (<a href="https://www.youtube.com/watch?v=BWxl921rMgM">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 8 Mar, 2001. Launch of STS-102 (<a href="https://nss.org/space-shuttle-flight-103-sts-102-post-flight-presentation-video/">nss.org</a>) (<a href="https://www.aiaa.org/docs/default-source/uploadedfiles/about-aiaa/history-and-heritage/why_the_wings_stay_on-ehrlich.pdf?sfvrsn=801c62b5_0">aiaa.org</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (3/12 - 3/18) in 1966: <em>A 154 day mission, but only for the passengers</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>A few photos of IM-1's broken leg answer questions about the latest moon landing. Also, Orion's hatch and ISRO's Mars helicopter.</itunes:subtitle><itunes:summary>A few photos of IM-1's broken leg answer questions about the latest moon landing. Also, Orion's hatch and ISRO's Mars helicopter.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:34:45</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/dd95cd8b-32c4-41f5-b03a-4f2a6407a17a/IM1-landing.jpg?format=1500w"/><itunes:title>Episode 449: All Jacked Up</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/65e7d0475552da357286e25e/1709690971082/Episode-449.mp3" length="29195412" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/65e7d0475552da357286e25e/1709690971082/Episode-449.mp3" length="29195412" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 449: All Jacked Up</media:title></media:content></item><item><title>Episode 448: Remove Before Flight</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 28 Feb 2024 02:14:59 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/93p3zas32864mphy4sk3h89pae5jdb</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:65de6c443a3bad525907f578</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— IM-1 landing follow-up (<a href="https://spacenews.com/im-1-lunar-lander-tipped-over-on-its-side/">spacenews.com</a>) (<a href="https://www.youtube.com/watch?v=Vwm_9OEL-68&amp;ab_channel=TheLaunchPad">youtube.com</a>) (<a href="https://www.youtube.com/watch?v=wynBeg7BYr0&amp;ab_channel=ScottManley">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— ISRO completes human-rating of engine (<a href="https://www.isro.gov.in/Successful_completion_Human_rating_CE20_Cryogenic_engine.html">isro.gov.in</a>)</p><p class="" style="white-space:pre-wrap;">— Software error responsible for Firefly’s off-nominal payload delivery (<a href="https://fireflyspace.com/missions/fly-the-lightning/">fireflyspace.com</a>) (<a href="https://www.space.com/firefly-aerospace-december-2023-launch-problem-software-issue">space.com</a>)</p><p class="" style="white-space:pre-wrap;">— Varda’s capsule returns (<a href="https://spacenews.com/varda-capsule-lands-in-utah/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— Espen via email: IM-1’s fuel loading</p><p class="" style="white-space:pre-wrap;"><strong>&nbsp;This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 2 March 1965: Atlas Centaur AC-5 explosion (<a href="https://en.wikipedia.org/wiki/Atlas-Centaur#Fifth_flight">en.wikipedia.org</a>) (<a href="https://science.nasa.gov/mission/surveyor-model-sd-1/">science.nasa.gov</a>) (<a href="https://ntrs.nasa.gov/citations/19750077283">ntrs.nasa.gov</a>) (<a href="https://www.youtube.com/watch?v=LHAn5IIYYlU">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (3/5 - 3/11) in 2001: <em>The first ten-person spaceflight</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Intuitive Machines issues an early update on IM-1's status. Also, ISRO's human rated engine, Firefly's software error, and Varda's return.</itunes:subtitle><itunes:summary>Intuitive Machines issues an early update on IM-1's status. Also, ISRO's human rated engine, Firefly's software error, and Varda's return.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>01:01:57</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1418314982417-0PNSD5LD6WLV5ZFEWTLM/TOM_2.jpg?format=1500w"/><itunes:title>Episode 448: Remove Before Flight</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/65de96c78a1582639a3c6578/1709086479085/Episode-448.mp3" length="52039389" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/65de96c78a1582639a3c6578/1709086479085/Episode-448.mp3" length="52039389" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 448: Remove Before Flight</media:title></media:content></item><item><title>Episode 447: Meta Moon</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 21 Feb 2024 01:08:56 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/meta-moon</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:65d51c25fc73f220b4922771</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— IM-1 launch (<a href="https://www.americaspace.com/2024/02/17/im-1-makes-history-by-igniting-cryogenic-engine-in-deep-space">americaspace.com</a>) (<a href="https://www.americaspace.com/2024/02/15/spacex-launches-im-1-nova-c-lander-powers-up-communicates-begins-multi-day-voyage-to-moon">americaspace.com</a>) (<a href="https://spacenews.com/falcon-9-launches-first-intuitive-machines-lunar-lander/">spacenews.com</a>) (<a href="https://spacenews.com/fueling-issue-delays-intuitive-machines-lunar-lander-launch/">spacenews.com</a>) (<a href="https://www.nasaspaceflight.com/2024/02/im1-launch/">nasaspaceflight.com</a>) (PDF: <a href="https://www.intuitivemachines.com/_files/ugd/7c27f7_0c7c9c1dddb0422694b16e6ec4c28242.pdf">intuitivemachines.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— H3 completes first successful launch (<a href="https://spacenews.com/h3-reaches-orbit-on-second-launch/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Voyager 1 still struggles to communicate (<a href="https://www.space.com/nasa-voyager1-spacecraft-interstellar-engineers-mission-glitch">space.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— February 21 2008, Interception and destruction of USA-193 (<a href="https://www.thespacereview.com/article/4198/1">thespacereview.com</a>) (PDF: <a href="https://www.unoosa.org/pdf/pres/stsc2008/tech-16.pdf">unoosa.org</a>) (<a href="https://en.wikipedia.org/wiki/Operation_Burnt_Frost">en.wikipedia.org</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (2/27 - 3/4) in 1965: <em>Technically, that was highly elliptical</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Intuitive Machines is headed off for their first moon landing attempt! Also, H3's successful launch and Voyager 1's comms troubles</itunes:subtitle><itunes:summary>Intuitive Machines is headed off for their first moon landing attempt! Also, H3's successful launch and Voyager 1's comms troubles</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:51:18</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1708465354969-KDKEURJLHZ7K2CTQ6MA1/ezgif-7-126b1d6eeb.jpg?format=1500w"/><itunes:title>Episode 447: Meta Moon</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/65d54cc53e9b0d3a7b6bdce6/1708477683807/Episode-447.mp3" length="43092555" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/65d54cc53e9b0d3a7b6bdce6/1708477683807/Episode-447.mp3" length="43092555" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 447: Meta Moon</media:title></media:content></item><item><title>Episode 446: No Dana Only Zoozve</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 14 Feb 2024 01:06:34 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/no-dana-only-zoozve</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:65cbf5c5c96e754fa050a43c</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Dream Chaser readies for first flight (<a href="https://www.nasaspaceflight.com/2024/02/dream-chaser-nasa-glenn/">nasaspaceflight.com</a>) (<a href="https://www.nasaspaceflight.com/2020/06/dream-chaser-receives-tps-for-2021/">nasaspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Viasat-3 pushes forward (<a href="https://spacenews.com/viasat-preparing-to-start-services-from-hobbled-viasat-3-satellite/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Lessons from Artemis 1 (<a href="https://spacenews.com/nasa-compiling-lessons-learned-from-artemis-1/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— X-37B’s orbit speculation (<a href="https://arstechnica.com/space/2024/02/us-militarys-elusive-spaceplane-apparently-found-by-sleuthing-enthusiast/">arstechnica.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— 2002 VE68 was officially named Zoozve! (<a href="https://www.alex-foster.com/shop/p/solar-system-map-illustrated-art-print">alex-foster.com</a>) (<a href="https://radiolab.org/podcast/zoozve">radiolab.org</a>) (<a href="https://radiolab.org/podcast/breaking-newsve-about-zoozve">radiolab.org</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 15 February, 1996: Failed launch of Intelsat 708 (<a href="https://en.wikipedia.org/wiki/Intelsat_708">en.wikipedia.org</a>) (<a href="https://www.youtube.com/watch?v=DZTFgZ9zl74&amp;ab_channel=FredV">youtube.com</a>) (<a href="https://www.thespacereview.com/article/2323/1">thespacereview.com</a>) (<a href="https://www.thespacereview.com/article/2326/1">thespacereview.com</a>) (<a href="https://www.smithsonianmag.com/air-space-magazine/disaster-at-xichang-2873673/">smithsonianmag.com</a>) (HT Dennis O: <a href="https://web.archive.org/web/20051110020225/http://www.house.gov/coxreport/cont/gncont.html">web.archive.org</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (2/20 - 2/26) in 2008: And it’s picked off at the 380,000 yard line!</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Episode 446: No Dana Only Zoozve</itunes:subtitle><itunes:summary>A Dream Chaser summary as it prepares for launch. Also, Viasat-3 soldiers on, Artemis 1 lessons, and X-37B's orbit.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:54:54</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1707865626451-3K8ND1V4K8IJYHVP24LF/ezgif-6-866b05f0fd.jpg?format=1500w"/><itunes:title>Episode 446: No Dana Only Zoozve</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/65cc11bac1939a3c6dfa2d00/1707872739492/Episode-446.mp3" length="46121035" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/65cc11bac1939a3c6dfa2d00/1707872739492/Episode-446.mp3" length="46121035" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 446: No Dana Only Zoozve</media:title></media:content></item><item><title>Episode 445: E-CLPS</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 07 Feb 2024 03:08:25 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/e-clps</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:65c2f268bb24c2720356b212</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— CLPS’ second try (<a href="https://spacenews.com/final-preparations-underway-for-launch-of-first-intuitive-machines-lunar-lander/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Collins completes Crew Capability Assessment (<a href="https://www.prnewswire.com/news-releases/collins-aerospace-to-deliver-new-spacesuits-to-nasa-for-international-space-station-missions-301698783.html">prnewswire.com</a>) (<a href="https://spaceflightnow.com/2024/02/01/collins-aerospace-completes-key-spacesuit-testing-milestone/">spaceflightnow.com</a>) (<a href="https://www.youtube.com/watch?v=l03eXM-1OMw">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Queqiao-2 readies for launch (<a href="https://news.cgtn.com/news/2024-02-02/Relay-satellite-for-China-s-future-lunar-missions-reaches-launch-site-1qROSzpSOtO/p.html">cgtn.com</a>)</p><p class="" style="white-space:pre-wrap;">— First metal 3D printer in space reaches ISS (<a href="https://europeanspaceflight.com/european-made-3d-printer-will-be-the-first-to-print-metal-in-space/">europeanspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;">— Orbit raising raising questions (<a href="https://spacenews.com/chinas-secretive-spaceplane-raises-its-orbit-but-yet-to-deploy-satellites/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 9 Feb, 2000. First launch of a Fregat upper stage (<a href="http://www.russianspaceweb.com/fregat.html">russianspaceweb.com</a>) (<a href="https://en.wikipedia.org/wiki/Fregat">en.wikipedia.org</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (2/13 - 2/19) in 1996: <em>First failure</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Intuitive Machines readies for their moonshot, and Collins tests their moon space suit. Also, a metal 3D printer on ISS, and the Chinese spaceplane.</itunes:subtitle><itunes:summary>Intuitive Machines readies for their moonshot, and Collins tests their moon space suit. Also, a metal 3D printer on ISS, and the Chinese spaceplane.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:41:34</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1707274984862-47KUZ3X9EB65BMB0M2KJ/20240201_Collins_spacesuit_testing_2.jpg?format=1500w"/><itunes:title>Episode 445: E-CLPS</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/65c2f3c57f4acb7efe3e190f/1707275274881/Episode-445.mp3" length="34929081" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/65c2f3c57f4acb7efe3e190f/1707275274881/Episode-445.mp3" length="34929081" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 445: E-CLPS</media:title></media:content></item><item><title>Episode 444: The Little Helo That Could</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 31 Jan 2024 03:00:12 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/the-little-helo-that-could</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:65b989d2ef5daf4cf027c2d0</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Ingenuity Down (HT deltaV: <a href="https://twitter.com/AndySaunders_1/status/1750654715807891615?t=pTwQhs9_9u9E_lBQbYLkCw">twitter.com/AndySaunders_1</a>) (<a href="https://spacenews.com/ingenuity-mars-helicopter-mission-ends-after-72-flights/">spacenews.com</a>) (<a href="https://mars.nasa.gov/maps/location/?mission=M20&amp;site=jez&amp;mapLon=77.35341620980763&amp;mapLat=18.476398130754855&amp;mapZoom=13&amp;globeLon=77.42958068847659&amp;globeLat=18.463327291058505&amp;globeZoom=11&amp;globeCamera=0,-9765.625,0,0,1,0&amp;panePercents=0,100,0&amp;on=Helicopter%20Position$1.00,Helicopter%20Flight%20Path$1.00,Flight%20Test%20Zone$1.00,Labels$1.00,Color%20Basemap$1.00,Grayscale%20Basemap$0.78,Northeast%20Syrtis%20Base%20Map$1.00">mars.nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;">— Slim Upside-Down (<a href="https://spacenews.com/japans-slim-achieved-pinpoint-moon-landing-with-just-one-working-engine/">spacenews.com</a>) (<a href="https://spacenews.com/japans-moon-lander-forced-to-power-down-but-may-yet-be-revived/">spacenews.com</a>)(<a href="https://global.jaxa.jp/press/2024/01/20240125-3_e.html">global.jaxa.jp</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Redwire to provide elements of Blue Origin’s space tug (<a href="https://spacenews.com/redwire-to-provide-components-for-blue-ring-transfer-vehicle/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Two companies test reusable booster prototypes (<a href="https://www.space.com/chinese-startup-landspace-reusable-rocket-test-video">space.com</a>) (HT: Sam <a href="https://twitter.com/CNSpaceflight/status/1750854925138145349">twitter.com/CNSpaceflight</a>)</p><p class="" style="white-space:pre-wrap;">— ESA astronaut operates Earth-bound robots while on orbit (<a href="https://europeanspaceflight.com/esa-astronaut-aboard-space-station-controls-robot-on-earth/">europeanspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— From the intro: Shuttle’s hatch lock (HT: deltaV, <a href="https://arstechnica.com/space/2024/01/solving-a-nasa-mystery-why-did-space-shuttle-commanders-lock-the-hatch/">arstechnica.com</a>) (<a href="https://spaceref.com/uncategorized/the-curious-use-of-combination-locks-by-nasa-during-space-shuttle-missions/">spaceref.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— Feb 3, 1994: First launch of the H-II rocket (<a href="https://en.wikipedia.org/wiki/H-II">en.wikipedia.org</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (2/6 - 2/12) in 2000: <em>First kleptoparasite in space</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Ingenuity lands for the last time, and SLIM's nose is in the dirt. Also, Redwire/Blue Ring, reusable booster tests, and Rollin' Justin.</itunes:subtitle><itunes:summary>Ingenuity lands for the last time, and SLIM's nose is in the dirt. Also, Redwire/Blue Ring, reusable booster tests, and Rollin' Justin.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1706658368182-5VYBRJHYX0683VVDOHL7/20240125-4_01_LEV-2-JAXA-cr.jpg?format=1500w"/><itunes:episode>00:42:24</itunes:episode><itunes:title>Episode 444: The Little Helo That Could</itunes:title><itunes:episodeType>full</itunes:episodeType><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/65b9b6fb4b9d896e4938b4d4/1706669880398/Episode-444.mp3" length="35619549" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/65b9b6fb4b9d896e4938b4d4/1706669880398/Episode-444.mp3" length="35619549" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 444: The Little Helo That Could</media:title></media:content></item><item><title>Episode 443: SLIM Chances</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 24 Jan 2024 01:28:03 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/slim-chances</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:65b06649fa031c291352bbf8</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— SLIM landing attempt (<a href="https://spacenews.com/japans-slim-spacecraft-lowers-orbit-ahead-of-friday-moon-landing-attempt/">spacenews.com</a>) (<a href="https://spacenews.com/japan-makes-history-with-tense-successful-moon-landing/">spacenews.com</a>) (<a href="https://www.nasaspaceflight.com/2024/01/slim-landing/">nasaspaceflight.com</a>) (<a href="https://en.wikipedia.org/wiki/Smart_Lander_for_Investigating_Moon">en.wikipedia.org</a>) (<a href="https://www.youtube.com/watch?v=muK6gFtv7_o">youtube.com</a>) (PDF: <a href="https://global.jaxa.jp/countdown/slim/SLIM-mediakit-EN_2308.pdf">global.jaxa.jp</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— EUS heads to qualification (<a href="https://www.nasaspaceflight.com/2024/01/nasa-sls-eus-qualification-phase/">nasaspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;">— Ingenuity contact lost during flight 72, regained (<a href="https://mars.nasa.gov/technology/helicopter/status/508/flight-72-status-update/">mars.nasa.gov</a>) (<a href="https://www.npr.org/2024/01/20/1225845938/nasa-mars-ingenuity-helicopter-lost">npr.org</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— From the intro: Peregrine Reentry (<a href="https://spacenews.com/astrobotic-confirms-peregrine-reentry-plans/">spacenews.com</a>) (<a href="https://spacenews.com/astrobotic-to-begin-formal-investigation-into-failed-peregrine-mission/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 24 Jan, 1986. Voyager 2’s closest approach to Uranus (<a href="https://voyager.jpl.nasa.gov/mission/science/uranus/">nasa.gov</a>) (<a href="https://voyager.jpl.nasa.gov/mission/spacecraft/instruments/">nasa.gov</a>) (PDF: <a href="https://sci-hub.se/https://doi.org/10.2514/6.1986-2110">sci-hub.se</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (1/30 - 2/5) in 1994: <em>What comes between 1 and A?</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>SLIM made it to the moon! How long will it survive? Also, EUS qualification and an Ingenuity hiccup.</itunes:subtitle><itunes:summary>SLIM made it to the moon! How long will it survive? Also, EUS qualification and an Ingenuity hiccup.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:42:12</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1706059416060-SSRH3GJUFC4M459D638P/ezgif-2-faa4d1b561.jpg?format=1500w"/><itunes:title>Episode 443: SLIM Chances</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/65b0674265c5eb2420fd4bae/1706059660239/Episode-443.mp3" length="35459366" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/65b0674265c5eb2420fd4bae/1706059660239/Episode-443.mp3" length="35459366" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 443: SLIM Chances</media:title></media:content></item><item><title>Episode 442: Lunar Otamatone</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 17 Jan 2024 02:02:24 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/lunar-otamatone</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:65a709e69bf585416f7ef1c4</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Peregrine Failure (<a href="https://spacenews.com/vulcan-centaur-launches-peregrine-lunar-lander-on-inaugural-mission/">spacenews.com</a>) (<a href="https://www.nasaspaceflight.com/2024/01/vulcan-launch-peregrine-inaugural-flight/">nasaspaceflight.com</a>) (<a href="https://spacenews.com/peregrine-lander-suffers-anomaly-after-launch/">spacenews.com</a>) (<a href="https://www.americaspace.com/2024/01/08/maiden-vulcan-centaur-flies-peregrine-lander-suffers-critical-anomaly">americaspace.com</a>) (<a href="https://spacenews.com/astrobotic-gets-payloads-working-on-ailing-peregrine-lander/">spacenews.com</a>) (<a href="https://twitter.com/astrobotic/status/1744467156366991843">twitter.com/astrobotic</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Lay-offs at JPL (<a href="https://spacenews.com/jpl-lays-off-100-contractors-citing-budget-uncertainty/">spacenews</a>)</p><p class="" style="white-space:pre-wrap;">— Starship’s second flight failure explained (<a href="https://spacenews.com/spacex-says-propellant-venting-caused-loss-of-second-starship/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— From the intro: Early demo of a starship game, complete with engineering section (<a href="https://starshipsimulator.co.uk/">starshipsimulator.co.uk</a>)</p><p class="" style="white-space:pre-wrap;">— Espen via email: F9 landing legs in episode 440</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 19 Jan, 1965. Launch of Gemini-Titan 2 (<a href="https://en.wikipedia.org/wiki/Gemini_2">en.wikipedia.org</a>) (<a href="https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=GEMINI2">nssdc.gsfc.nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (1/23 - 1/29) in 1986: Cheaper by the almost dozen</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Peregrine launched successfully, but quickly encountered problems on orbit. Also, layoffs at JPL, and insight into Starship's orbital failure.</itunes:subtitle><itunes:summary>Peregrine launched successfully, but quickly encountered problems on orbit. Also, layoffs at JPL, and insight into Starship's orbital failure.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:44:25</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1705446012940-SRGY9O56DWHR7OOBKNH2/Gemini2reentry.jpg?format=1500w"/><itunes:title>Episode 442: Lunar Otamatone</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/65a73482f7ea1b0dd2b072b0/1705456828017/Episode-442.mp3" length="37311344" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/65a73482f7ea1b0dd2b072b0/1705456828017/Episode-442.mp3" length="37311344" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 442: Lunar Otamatone</media:title></media:content></item><item><title>Episode 441: Future Tech Christmas</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 10 Jan 2024 03:17:58 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/future-tech-christmas</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:659dfa02800e1d5252fb761b</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— NIAC 2024 Phase One (<a href="https://www.nasa.gov/news-release/funding-future-tech-nasa-names-2024-innovative-concept-studies/">nasa.gov</a>) (<a href="https://www.nasa.gov/general/niac-2024-selections/">nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— India launches X-ray space observatory (<a href="https://spaceflightnow.com/2023/12/31/india-set-to-kick-off-2024-orbital-launch-year-with-x-ray-observatory-mission/">spaceflightnow.com</a>)</p><p class="" style="white-space:pre-wrap;">— Space station stories (<a href="https://spacenews.com/uae-to-build-airlock-for-lunar-gateway/">spacenews.com</a>) (<a href="https://spacenews.com/nasa-adds-funding-to-blue-origin-and-voyager-space-commercial-space-station-agreements/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 12 January, 1997: Launch of Atlantis on STS-81 (<a href="https://en.wikipedia.org/wiki/STS-81">en.wikipedia.org</a>) (<a href="https://www.americaspace.com/2022/01/12/we-love-that-sound-remembering-sts-81s-visit-to-mir-25-years-on/">americaspace.com</a>) (<a href="https://www.youtube.com/watch?v=moAqzM4ptm8">youtube.com</a>) (<a href="https://freshairarchive.org/guests/jerry-m-linenger">freshairarchive.org</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (1/16 - 1/22) in 1965: <em>The there of “there and back again”</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Airplanes on other planets, bacteria for detox, radioactive sails... NIAC awards are here! Also, ISRO's X-ray telescope &amp; space station stories.</itunes:subtitle><itunes:summary>Airplanes on other planets, bacteria for detox, radioactive sails... NIAC awards are here! Also, ISRO's X-ray telescope &amp; space station stories.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>01:33:40</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1704852072320-V6QZSPUW3V8LC6Y88ABG/2024-ph-i-zha-graphic.png?format=1500w"/><itunes:title>Episode 441: Future Tech Christmas</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/659e0bd8d60f7a07f27046f2/1704856654366/Episode-441.mp3" length="78690818" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/659e0bd8d60f7a07f27046f2/1704856654366/Episode-441.mp3" length="78690818" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 441: Future Tech Christmas</media:title></media:content></item><item><title>Episode 440: 99 Landings and a Tough Ride</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 03 Jan 2024 01:51:29 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/99-landings-and-a-tough-ride</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:6594b039a2d8343e146a305d</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— B1058 lost at sea (<a href="https://spaceflightnow.com/2023/12/27/historic-spacex-falcon-9-booster-topples-over-and-is-lost-at-sea/">spaceflightnow.com</a>) (<a href="https://twitter.com/johnkrausphotos/status/1739679188670427188">twitter.com/johnkrausphotos</a>) (<a href="https://www.youtube.com/watch?v=_sG8msSS6Mg&amp;ab_channel=ScottManley">youtube.com</a>) (<a href="https://www.ventusky.com/?p=28.96;-77.10;6&amp;l=wave&amp;t=20231225/1800">ventusky.com</a>) (<a href="https://twitter.com/edwards345/status/1739684677714104759">twitter.com/edwards345</a>) (<a href="https://spaceexplored.com/2023/12/29/spacex-launches-2023/">spaceexplored.com</a>)</p><p class="" style="white-space:pre-wrap;">— Firefly malfunction (<a href="https://spacenews.com/firefly-alpha-upper-stage-malfunction-puts-payload-into-wrong-orbit/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— China completes launch pad at first commercial spaceport (<a href="https://news.cgtn.com/news/2023-12-30/No-1-launch-pad-of-China-s-1st-commercial-launch-center-completed-1pWYuAwPNsc/p.html">cgtn.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 3 Jan, 1999: The launch of Deep Space 2 (<a href="https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=DEEPSP2">gsfc.nasa.gov</a>) (<a href="https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/1999JE001073">wiley.com</a>) (<a href="https://web.archive.org/web/19970627083952/http://nmp.jpl.nasa.gov/DS2/">jpl.nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (1/9 - 1/15) in 1997: Merry belated Christmas. I got you a fan.</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>SpaceX did a heck of a lot of flying this year, including one notable bang. Also, China's first commercial spaceport.</itunes:subtitle><itunes:summary>SpaceX did a heck of a lot of flying this year, including one notable bang. Also, China's first commercial spaceport.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:46:54</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1704243605666-VVOL6Q2BTLE05WXHRPVN/GCSU_jLXgAA1gem.jpg?format=1500w"/><itunes:title>Episode 440: 99 Landings and a Tough Ride</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6594bd452a2eab14c588607c/1704246653748/Episode-440.mp3" length="39402132" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6594bd452a2eab14c588607c/1704246653748/Episode-440.mp3" length="39402132" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 440: 99 Landings and a Tough Ride</media:title></media:content></item><item><title>Episode 439: A Period of Time</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 20 Dec 2023 02:05:01 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/a-period-of-time</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:6582468523a60139c2197cc4</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— China launches spaceplane for third time (<a href="https://spacenews.com/china-launches-mystery-reusable-spaceplane-for-third-time/">spacenews.com</a>) (<a href="https://arstechnica.com/space/2023/12/space-force-chief-timing-of-chinese-spaceplane-launch-no-coincidence/">arstechnica.com</a>) (<a href="https://www.youtube.com/watch?v=mKHqEiOULXg">youtube.com</a>) (<a href="https://www.nasaspaceflight.com/2023/12/china-roundup-121723/">nasaspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Refractory Starship (<a href="https://www.nasaspaceflight.com/2023/12/spacex-flight-3-rollout-ship-28/">nasaspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;">— iSpace hops again (<a href="https://spacenews.com/chinas-reusable-rocket-race-heats-up-with-new-hop-test/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Voyager 1 suffers communication anomaly (<a href="https://www.space.com/voyager-1-flight-data-system-glitch">space.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 19 Dec, 1976. The launch of the first KH-11 Kennen/Keyhole satellite (<a href="https://en.wikipedia.org/wiki/KH-11_Kennen">en.wikipedia.org</a>) (<a href="https://space.skyrocket.de/doc_sdat/kh-11.htm">space.skyrocket.de</a>) (<a href="https://www.npr.org/2019/08/30/755994591/president-trump-tweets-sensitive-surveillance-image-of-iran">npr.org</a>)</p><p class="" style="white-space:pre-wrap;">— Two weeks from now (1/2 - 1/8) in 1999: <em>Secondary failures</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>China's undisclosed reusable spacecraft has lifted off to spend "a period of time" on orbit. Also, Starship refurbishment, iSpace hop, &amp; Voyager bug.</itunes:subtitle><itunes:summary>China's undisclosed reusable spacecraft has lifted off to spend "a period of time" on orbit. Also, Starship refurbishment, iSpace hop, &amp; Voyager bug.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:39:58</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1703037318701-705KZ6XU4NK0H1QY3AI0/Janeskh11leakedphoto.jpg?format=1500w"/><itunes:title>Episode 439: A Period of Time</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/65824b5e9bff295cce8e987e/1703037847453/Episode-439.mp3" length="33577401" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/65824b5e9bff295cce8e987e/1703037847453/Episode-439.mp3" length="33577401" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 439: A Period of Time</media:title></media:content></item><item><title>Episode 438: Serbatoi Mancanti</title><dc:creator>David Fourman</dc:creator><pubDate>Wed, 13 Dec 2023 02:21:14 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/serbatoi-mancanti</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:6578a77992c90270e21e655f</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Vega propellant tank mishap&nbsp; (<a href="https://arstechnica.com/space/2023/12/italian-rocket-maker-has-a-problem-key-parts-of-final-vega-booster-were-trashed/">arstechnica.com</a>) (<a href="https://europeanspaceflight.com/the-case-of-the-missing-vega-avum-propellant-tanks/">europeanspaceflight.com</a>) (<a href="https://www.eoportal.org/other-space-activities/vega">eoportal.org</a>) (PDF: <a href="https://www.arianespace.com/wp-content/uploads/2018/05/Vega-Users-Manual_Issue-04_April-2014.pdf">arianespace.com</a>)</p><p class="" style="white-space:pre-wrap;">    — AVUM 4th stage (“upper stage”) (Pic: <a href="https://www.eoportal.org/api/cms/documents/163813/1886582/Vega_Auto9.jpeg">eoportal.org</a>)</p><p class="" style="white-space:pre-wrap;">— Transporter-9 satellite deployment malfunction (<a href="https://spacenews.com/three-satellites-presumed-lost-in-transporter-deployment-malfunction/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Iran successfully launches bio-capsule (<a href="https://payloadspace.com/iran-launches-bio-capsule-to-space/">payloadspace.com</a>)</p><p class="" style="white-space:pre-wrap;">— Chinese methalox rocket progress continues (<a href="https://news.cgtn.com/news/2023-12-10/China-s-methane-powered-reusable-rocket-set-for-maiden-flight-in-2025-1ppMTnyRKko/index.html">cgtn.com</a>)</p><p class="" style="white-space:pre-wrap;">— Stratolaunch tests hypersonic vehicle (<a href="https://www.thedrive.com/the-war-zone/worlds-largest-plane-one-step-closer-to-launching-hypersonic-vehicle">thedrive.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 12 Dec, 2012: NIAC releases Space Debris Elimination (SpaDE) Phase 1 report (<a href="https://www.nasa.gov/directorates/spacetech/niac/2011_space_debris_elimination/">nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (12/19 - 12/25) in 1976. Achievement unlocked</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Vega’s fourth stage AVUM loses its fuel tanks, only to find them in a landfill. Also Transporter-9 experiences several satellite deployment failures.</itunes:subtitle><itunes:summary>Vega’s fourth stage AVUM loses its fuel tanks, only to find them in a landfill. Also Transporter-9 experiences several satellite deployment failures.
</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:50:16</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1418314982417-0PNSD5LD6WLV5ZFEWTLM/TOM_2.jpg?format=1500w"/><itunes:title>Episode 438: Serbatoi Mancanti</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/65791495a25768472f599bd8/1702433996652/Episode-438.mp3" length="42227641" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/65791495a25768472f599bd8/1702433996652/Episode-438.mp3" length="42227641" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 438: Serbatoi Mancanti</media:title></media:content></item><item><title>Episode 437: Shtuff</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 06 Dec 2023 01:47:45 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/shtuff</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:656f9ba3fa976460ccc56490</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Starship Shtuff (<a href="https://payloadspace.com/spacex-announces-a-starship-version-two-is-in-the-works/">payloadspace.com</a>) (<a href="https://www.americaspace.com/2023/12/01/spacexs-new-design-for-lunar-starship-unveiled">americaspace.com</a>) (<a href="https://twitter.com/ThePrimalDino/status/1720073146852618450">twitter.com/ThePrimalDino</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— JAXA cyber attacked (<a href="https://payloadspace.com/jaxa-suffers-cyberattack/">payloadspace.com</a>)</p><p class="" style="white-space:pre-wrap;">— U.S. watchdog agency finds Artemis III in 2025 unlikely (<a href="https://www.gao.gov/products/gao-24-106256">gao.gov</a>) (<a href="https://spacenews.com/gao-report-warns-artemis-3-landing-may-be-delayed-to-2027/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Gyroscope glitch halts Hubble operations (<a href="https://science.nasa.gov/missions/hubble/nasas-hubble-space-telescope-pauses-science-due-to-gyro-issue/">nasa.gov</a>) (<a href="https://spacenews.com/hubble-glitch-renews-talk-about-private-servicing-mission/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— &nbsp;Dec 7, 1966: Launch of ATS-1, the first experimental geostationary satellite (<a href="https://en.wikipedia.org/wiki/ATS-1">en.wikipedia.org</a>) (<a href="https://youtu.be/HhndMixTcCA?t=300">youtu.be</a>) (<a href="https://science.nasa.gov/missions/ats/">science.nasa.gov</a> VIA <a href="https://web.archive.org/web/20230610151119/https://science.nasa.gov/missions/ats/">web.archive.org</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (12/12 - 12/18) in 2012: Digging up debris</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>A few Starship teases, but not many satisfying answers. Also, JAXA hacked, Artemis III dates, and a Hubble glitch.</itunes:subtitle><itunes:summary>A few Starship teases, but not many satisfying answers. Also, JAXA hacked, Artemis III dates, and a Hubble glitch.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:42:45</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1701813319004-GZZQJOZW1NA7RIL6F9V7/F97taInbIAACiHB.jpg?format=1500w"/><itunes:title>Episode 437: Shtuff</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/656fd2042a6ece14f05fed62/1701827125334/Episode-437.mp3" length="35911389" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/656fd2042a6ece14f05fed62/1701827125334/Episode-437.mp3" length="35911389" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 437: Shtuff</media:title></media:content></item><item><title>Episode 436: Boldly Going Nowhere</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 29 Nov 2023 02:09:30 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/boldly-going-nowhere</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:656698cb3cb3cf6b8f405904</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Starliner Crewed Flight Test stays on schedule (<a href="https://spacenews.com/starliner-on-track-for-april-crewed-test-flight/">spacenews.com</a>) (<a href="https://www.nasaspaceflight.com/2023/11/starliner-asap-nac/">nasaspaceflight.com</a>) (<a href="https://blogs.nasa.gov/commercialcrew/2023/10/23/progress-continues-toward-nasas-boeing-crew-flight-test-to-station/">blogs.nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Looking Towards the End of ISS (<a href="https://www.planetary.org/articles/how-nasa-plans-to-deorbit-the-international-space-station">planetary.org</a>) (<a href="https://spacenews.com/nasa-acknowledges-possibility-of-short-term-post-iss-gap/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Orion still on track (<a href="https://spacenews.com/nasa-still-studying-orion-heat-shield-erosion-from-artemis-1/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Ariane 6 hot firing test (<a href="https://europeanspaceflight.com/esa-completes-full-duration-ariane-6-hot-fire-test/">europeanspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— Danielle Rose has some neat space art (<a href="https://drose.studio/shop/">drose.studio</a>) (<a href="https://spacey.space/@manyfaceted@mstdn.social">spacey.space</a>)</p><p class="" style="white-space:pre-wrap;">— Jared Owen covers ISS construction (HT Lee <a href="https://youtu.be/FhKOuxhGlmI">youtu.be</a> VIA <a href="https://discord.com/channels/137948573605036033/137948573605036033/1176944408093012039">discord.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 3 Dec, 2015. Launch of LISA Pathfinder (<a href="https://sci.esa.int/web/lisa-pathfinder/-/31431-summary">esa.int</a>) (<a href="https://youtu.be/jxU2jFh_6GM?t=94">youtu.be</a>) (<a href="https://www.jpl.nasa.gov/news/nasas-lisa-pathfinder-thrusters-operated-successfully">nasa.gov</a>) (<a href="https://spaceflight101.com/lisa-pathfinder/">spaceflight101.com</a>) (PDF: <a href="https://esmats.eu/esmatspapers/pastpapers/pdfs/2013/zahnd.pdf">esmats.eu</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (12/5 - 12/11) in 1966: <em>It helped make Our World possible</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Starliner's schedule seems to be holding for a spring launch. Also, the end of ISS, the start of Artemis, and an Ariane 6 hot fire.</itunes:subtitle><itunes:summary>Starliner's schedule seems to be holding for a spring launch. Also, the end of ISS, the start of Artemis, and an Ariane 6 hot fire.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:58:02</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1701222720058-DLCFIHNBR96YQ99CYS3A/ezgif-2-cdbe16727a.jpg?format=1500w"/><itunes:title>Episode 436: Boldly Going Nowhere</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/65669cce3d3649721c8b1a34/1701223749750/Episode-436.mp3" length="48754909" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/65669cce3d3649721c8b1a34/1701223749750/Episode-436.mp3" length="48754909" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 436: Boldly Going Nowhere</media:title></media:content></item><item><title>Episode 435: Purple Flame</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 22 Nov 2023 00:35:19 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/purple-flame</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:655d2a92e3203141d18c7780</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Starship Flight 2 (<a href="https://spacenews.com/starship-super-heavy-lifts-off-on-second-flight/">spacenews.com</a>) (<a href="https://www.nasaspaceflight.com/2023/11/ift-2-launch/">nasaspaceflight.com</a>) (<a href="https://www.americaspace.com/2023/11/18/spacex-achieves-successful-first-stage-burn-starship-separation-in-ift-2-test-flight/">americaspace.com</a>) (<a href="https://www.youtube.com/watch?v=hF2C7xE9Mj4">youtube.com</a>) (<a href="https://twitter.com/thejackbeyer/status/1725907768127672633">twitter.com/thejackbeyer</a>) (<a href="https://twitter.com/planet4589/status/1725917544114974995?s=20">twitter.com/planet4589</a>)</p><p class="" style="white-space:pre-wrap;">    — Posted after recording: a quick analysis of Starships acceleration curves (<a href="https://twitter.com/Space_Josiah/status/1726090284818383224">twitter.com/Space_Josiah</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— SaxaVord struggles to pay contractors (<a href="https://europeanspaceflight.com/saxavord-owes-contractors-money-it-cant-pay/">europeanspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;">— Sierra Space layoffs (<a href="https://www.cnbc.com/2023/11/16/sierra-space-layoffs.html">cnbc.com</a>)</p><p class="" style="white-space:pre-wrap;">— Mars Helicopter completes back-to-back flights (<a href="https://twitter.com/nasajpl/status/1721940342113747091?s=46&amp;t=O4DjbjnpfZSRNsn7FTYICA">twitter.com/nasajpl</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 27 Nov, 1963: Launch of the first hydrolox rocket to orbit (<a href="https://en.wikipedia.org/wiki/Atlas-Centaur">en.wikipedia.org</a>) (<a href="http://www.spacelaunchreport.com/aclv3cb.html">spacelaunchreport.com</a> VIA <a href="https://web.archive.org/web/20100821064737/http://www.spacelaunchreport.com/aclv3cb.html">web.archive.org</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (11/28 - 12/4) in 2015: <em>Every journey of millions of kilometers starts with a couple meters.</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Starship's second test flight achieved goals despite scattering steel across the gulf of Mexico. Also, SaxaVord bills, Sierra layoffs, and Ingenuity.</itunes:subtitle><itunes:summary>Starship's second test flight achieved goals despite scattering steel across the gulf of Mexico. Also, SaxaVord bills, Sierra layoffs, and Ingenuity.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:52:09</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1700604685409-R9VWFEEPI4UC3X21PXUM/NSF-2023-11-18-17-28-22-580-scaled.jpg?format=1500w"/><itunes:title>Episode 435: Purple Flame</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/655d4c34f0aec57b50368213/1700613297108/Episode-435.mp3" length="43814841" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/655d4c34f0aec57b50368213/1700613297108/Episode-435.mp3" length="43814841" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 435: Purple Flame</media:title></media:content></item><item><title>Episode 434: DOWNLINK--Benchmark</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 15 Nov 2023 02:30:43 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/benchmark</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:65542a9f3c09fc676b9e21ae</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Rocket Lab Failure Analysis (<a href="https://spacenews.com/rocket-lab-plans-to-resume-electron-launches-in-late-november/">spacenews.com</a>) (<a href="https://www.space.com/rocket-lab-cause-launch-failure-september-2023">space.com</a>) (<a href="https://www.rocketlabusa.com/updates/rocket-lab-sets-next-electron-launch-window-provides-update-on-anomaly-review/">rocketlabusa.com</a>) (PDF: <a href="https://s28.q4cdn.com/737637457/files/doc_financials/2023/q3/FINAL_Rocket-Lab-Q3-2023-presentation_pdf_1.pdf">q4cdn.com</a> VIA <a href="https://en.wikipedia.org/wiki/List_of_Electron_launches#cite_note-142">en.wikipedia.org</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Astra’s financial future (<a href="https://spacenews.com/astra-founders-offer-to-take-company-private/">spacenews.com</a>) (<a href="https://spacenews.com/astra-secures-interim-financing-deal/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— X-37B readies for first launch on Falcon Heavy (<a href="https://spaceflightnow.com/2023/11/09/u-s-militarys-x-37b-mini-shuttle-to-launch-on-spacex-falcon-heavy-for-the-first-time/">spaceflightnow.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— From the intro: Dinkinesh adds a moon (<a href="https://www.planetary.org/articles/lucys-flyby-of-dinkinesh-everything-you-need-to-know">planetary.org</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Interview -- Jake Teufert CTO and Chris Carella CCO, Benchmark Space Systems</strong></p><p class="" style="white-space:pre-wrap;">— We last talked to Chris Carella in episode 373 (<a href="https://theorbitalmechanics.com/show-notes/benchmark-aasc">theorbitalmechanics.com</a>)</p><p class="" style="white-space:pre-wrap;">— <a href="https://www.benchmarkspacesystems.com/">benchmarkspacesystems.com</a></p><p class="" style="white-space:pre-wrap;">— <a href="https://www.linkedin.com/company/benchmark-space-systems">linkedin.com/company/benchmark-space-systems</a>&nbsp;</p><p class="" style="white-space:pre-wrap;">— <a href="https://www.linkedin.com/in/jake-teufert-86b375133/">linkedin.com/in/jake-teufert-86b375133/</a>&nbsp;</p><p class="" style="white-space:pre-wrap;">— <a href="https://www.linkedin.com/in/christopher-carella-innovate/">linkedin.com/in/christopher-carella-innovate/</a></p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— Nov 15, 1988: The first and only launch of Buran (<a href="https://en.wikipedia.org/wiki/Buran_(spacecraft)">en.wikipedia.org</a>) (<a href="http://www.buran.ru/htm/equipm.htm">buran.ru</a>) (<a href="https://www.buran.su/buranvssts-characteristics.php">buran.ru</a>) (<a href="https://www.buran-energia.com/bourane-buran/bourane-consti-reacteur.php">buran-energia.com</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (11/21 - 11/27) in 1962: <em>Clouds before Aurora</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Benchmark Space Systems are building small bipropellant thrusters and GNC software. Check back in with their CEO and meet their resident pyromaniac.</itunes:subtitle><itunes:summary>Benchmark Space Systems are building small bipropellant thrusters and GNC software. Check back in with their CEO and meet their resident pyromaniac.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>01:36:29</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1700014940977-5H784DFZVVLSTXXH52DB/2N-Lynx-Bipropellant-Thruster.jpg?format=1500w"/><itunes:title>Episode 434: DOWNLINK--Benchmark</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/65542bb5744ee45b26723294/1700015289570/Episode-434.mp3" length="81059184" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/65542bb5744ee45b26723294/1700015289570/Episode-434.mp3" length="81059184" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 434: DOWNLINK--Benchmark</media:title></media:content></item><item><title>Episode 433: Dinkinesh and Dinkynesh</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 08 Nov 2023 02:48:20 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/dinkinesh-and-dinkynesh</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:654aaa9b33137e7c0c42dc20</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Lucy flies past Dinkinesh and also Dinkinesh (<a href="https://www.nasa.gov/image-article/nasas-lucy-spacecraft-discovers-2nd-asteroid-during-dinkinesh-flyby/">nasa.gov</a>) (<a href="https://lucy.swri.edu/DinkineshEncounter.html">lucy.swri.edu</a>) (PDF: <a href="https://ntrs.nasa.gov/api/citations/20220001851/downloads/AAS-22-131%20Terminal%20Tracking%20for%20the%20Lucy%20Trojan%20Asteroid%20Mission.pdf">ntrs.nasa.gov</a> VIA <a href="https://ntrs.nasa.gov/citations/20220001851">ntrs.nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;">    — Aerojet Rocketdyne supplied Lucy’s thrusters (<a href="https://www.l3harris.com/newsroom/editorial/2023/11/aerojet-rocketdyne-propulsion-plays-pivotal-role-lucys-first-asteroid">l3harris.com</a>) (PDF: <a href="https://satcatalog.s3.amazonaws.com/components/845/SatCatalog_-_Aerojet_Rocketdyne_-_MR-106L_22N_-_Datasheet.pdf">amazonaws.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Starship aims for mid-November launch (<a href="https://www.nasaspaceflight.com/2023/11/starship-update-110223/">nasaspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;">— i-Space hops (<a href="https://spacenews.com/chinas-ispace-launches-and-lands-rocket-test-stage/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 12 Nov, 1995. Launch of STS-74, second Shuttle-Mir docking (<a href="https://en.wikipedia.org/wiki/STS-74">en.wikipedia.org</a>) (PDF: <a href="https://ntrs.nasa.gov/api/citations/19990019365/downloads/19990019365.pdf">nasa.gov</a>) (PDF: <a href="https://spacepresskit.files.wordpress.com/2012/08/sts-74.pdf">spacepresskit.files.wordpress.com</a>) (<a href="https://youtu.be/hRP8GM5QoYQ?t=648">youtu.be</a>) (<a href="https://space.nss.org/space-shuttle-flight-73-sts-74-post-flight-presentation-video/">nss.org</a>) (<a href="https://www.wikiarchives.space/index.php?/category/868">wikiarchives.space</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (11/14 - 11/20) in 1988: The cold wind blew but once.</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Lucy experienced its first asteroid flyby, and it's a double! Also, Starship plans, and i-Space tests a landable first stage.</itunes:subtitle><itunes:summary>Lucy experienced its first asteroid flyby, and it's a double! Also, Starship plans, and i-Space tests a landable first stage.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:58:23</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1699392354861-Y3NJKX2KGW4MSDWZODNE/Dinkinesh-FirstLook-LLORRI.png?format=1500w"/><itunes:title>Episode 433: Dinkinesh and Dinkynesh</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/654af632d2a1f930373628aa/1699411625827/Episode-433.mp3" length="49043092" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/654af632d2a1f930373628aa/1699411625827/Episode-433.mp3" length="49043092" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 433: Dinkinesh and Dinkynesh</media:title></media:content></item><item><title>Episode 432: DOWNLINK--Orbit Fab</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 01 Nov 2023 00:53:05 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/orbit-fab</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:65419934123adc5de0fd198f</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— ABL Dusts Itself Off (<a href="https://spacenews.com/abl-space-systems-prepares-for-second-rs1-launch/">spacenews.com</a>) (<a href="https://harryohanley.substack.com/p/flight2">harryohanley.substack.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— NASA struggles to open asteroid sample container (<a href="https://www.space.com/osiris-rex-asteroid-sample-passes-goal">space.com</a>)</p><p class="" style="white-space:pre-wrap;">— Rocket Lab to return (<a href="https://spacenews.com/rocket-lab-projects-electron-return-to-flight-in-fourth-quarter/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— From the intro: Blue Origin’s latest Blue Moon mockup (<a href="https://spacenews.com/blue-origin-reveals-mockup-of-blue-moon-lunar-lander-prototype/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Canopée to ferry Ariane 6 (<a href="https://fosstodon.org/@AkaSci/111298920703777498">fosstodon.org/@AkaSci</a>)</p><p class="" style="white-space:pre-wrap;">— You can register to send your name with Europa Clipper (<a href="https://europa.nasa.gov/message-in-a-bottle/">europa.nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;">— Mike Stewart’s core rope memory reader (finally) debuted on CuriousMarc’s channel (<a href="https://www.youtube.com/watch?v=hckwxq8rnr0">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;">— Aaron Sawdey: Crew Dragon engine inventory&nbsp; (<a href="https://discord.com/channels/137948573605036033/137948573605036033/1166909482438246421">discord.com</a>):</p><p class="" style="white-space:pre-wrap;"><strong>Interview -- Daniel Faber, CEO and Adam Harris, CCO of Orbit Fab</strong></p><p class="" style="white-space:pre-wrap;">— Further reading</p><p class="" style="white-space:pre-wrap;">    — Furphy on ISS (<a href="https://www.issnationallab.org/upward-orbit-fab-furphy/">issnationallab.org</a>)</p><p class="" style="white-space:pre-wrap;">    — Analysis of a potential Orbit Fab shuttle/depot architecture (<a href="https://www.researchgate.net/publication/368288337_A_Shuttle_and_Depot_Architecture_for_Reliable_and_Cost-Effective_Refueling_Operations_in_All_Orbits">researchgate.net</a>)</p><p class="" style="white-space:pre-wrap;">— <a href="https://www.orbitfab.com/">orbitfab.com</a></p><p class="" style="white-space:pre-wrap;">— <a href="https://www.linkedin.com/in/adam-harris-363414a6">linkedin.com/in/adam-harris-363414a6</a></p><p class="" style="white-space:pre-wrap;">— <a href="https://www.linkedin.com/in/danielfaber">linkedin.com/in/danielfaber</a></p><p class="" style="white-space:pre-wrap;">— <a href="https://www.linkedin.com/company/orbitfab">linkedin.com/company/orbitfab</a></p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 4 Nov, 2011: The end of Mars-500 (<a href="https://www.space.com/13500-mock-mars-mission-mars-500-ends.html">space.com</a>) (<a href="https://en.wikipedia.org/wiki/MARS-500">wikipedia.org</a>) (<a href="https://www.bbc.com/news/science-environment-15574646">bbc.com</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (11/7 - 11/13) in 1995: Mission extension… of 4.7 m</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Orbit Fab is working on a fuel depot in orbit. Learn with us from Daniel Faber and Adam Harris about their solutions to the physical challenges.</itunes:subtitle><itunes:summary>Orbit Fab is working on a fuel depot in orbit. Learn with us from Daniel Faber and Adam Harris about their solutions to the physical challenges.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>01:28:14</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1698798093420-ON06GEJS10ZFEUMFMYNP/upward-orbitfab-jessica.jpg?format=1500w"/><itunes:title>Episode 432: DOWNLINK--Orbit Fab</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6541a08325cb98414f35e36e/1698799938223/Episode-432.mp3" length="74127435" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6541a08325cb98414f35e36e/1698799938223/Episode-432.mp3" length="74127435" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 432: DOWNLINK--Orbit Fab</media:title></media:content></item><item><title>Episode 431: Roller Coaster Tycoon</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 25 Oct 2023 02:02:38 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/roller-coaster-tycoon</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:653863f610a40700d679b2e5</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Gaganyaan in-flight abort test (<a href="https://www.youtube.com/watch?v=JE96cbTT_f8">youtube.com</a>) (<a href="https://timesofindia.indiatimes.com/city/hyderabad/gaganyaan-test-roller-coaster-ride-and-big-achievement-say-hyd-firms/articleshow/104617792.cms">timesofindia.indiatimes.com</a>) (HT: <a href="https://blog.jatan.space/">Jatan’s Space</a> PDF: <a href="https://www.isro.gov.in/media_isro/pdf/TVD1/TVD1-Brochure.pdf">gov.in</a>) (HT <a href="https://discord.com/channels/137948573605036033/137948573605036033/1164645681533825034">DeltaV</a>: <a href="https://twitter.com/DJSnM/status/1197215290699870209">twitter.com/DJSnM</a>)</p><p class="" style="white-space:pre-wrap;">    — Pad abort test (<a href="https://www.youtube.com/watch?v=qyJEcLgzRqM">https://www.youtube.com</a>)</p><p class="" style="white-space:pre-wrap;">    — Future human Indian Space ambitions (<a href="https://pib.gov.in/PressReleseDetailm.aspx?PRID=1968368">gov.in</a>) (<a href="https://spacenews.com/india-sets-2040-target-for-crewed-moon-landing/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— PLD Test Launch (<a href="https://spacenews.com/pld-space-calls-first-launch-a-success/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Two Vega payloads fail to deploy (<a href="https://europeanspaceflight.com/two-vega-vv23-payloads-failed-to-deploy/">europeanspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— From the intro: Shuttle astronaut mass allotments (<a href="https://forum.nasaspaceflight.com/index.php?topic=17437.3200">forum.nasaspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— October 28, 2009: Launch of the Ares I-X (<a href="https://en.wikipedia.org/wiki/Ares_I-X">en.wikipedia.org</a>) (PDF: <a href="https://ntrs.nasa.gov/api/citations/20110014643/downloads/20110014643.pdf">ntrs.nasa.gov</a>) (<a href="https://blogs.nasa.gov/Ares_I-X/tag/mobile-launcher-platform/">blogs.nasa.gov</a>) (<a href="https://www.youtube.com/watch?v=YSTuKzYuQ0Q">youtube.com</a>) (<a href="https://www.nasaspaceflight.com/2009/10/pad-39b-suffers-substantial-damage-ares-i-x-parachute-update/">nasaspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (10/31 - 11/6) in 2011: <em>Warning: removing this sticker will void your experiment.</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Gaganyaan successfully demonstrated its in-flight abort capabilities! Also, PLD's first launch, and to failed Vega payloads.</itunes:subtitle><itunes:summary>Gaganyaan successfully demonstrated its in-flight abort capabilities! Also, PLD's first launch, and to failed Vega payloads.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>01:05:43</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1698194515794-UG5EYJB1IV7O7INX84KV/F7zF5P3XkAAae5Y.jpg?format=1500w"/><itunes:title>Episode 431: Roller Coaster Tycoon</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6538761917021c54b1c9aa01/1698199198048/Episode-431.mp3" length="55213424" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6538761917021c54b1c9aa01/1698199198048/Episode-431.mp3" length="55213424" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 431: Roller Coaster Tycoon</media:title></media:content></item><item><title>Episode 430: Iron Sponge</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 18 Oct 2023 01:08:22 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/iron-sponge</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:652efa34672df54ad5a5ea0e</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Psyche launch and mission preview (<a href="https://www.americaspace.com/2023/10/13/falcon-heavy-successfully-launches-nasas-psyche-looks-to-record-setting-year-end">americaspace.com</a>) (<a href="https://spacenews.com/nasa-launches-psyche-mission-to-metal-world/">spacenews.com</a>) (<a href="https://www.nasaspaceflight.com/2023/10/psyche-sofia/">nasaspaceflight.com</a>) (<a href="https://scitechdaily.com/cold-gas-thrusters-heat-up-nasas-psyche-mission-launch-pushed-back/">scitechdaily.com</a>) (<a href="https://en.wikipedia.org/wiki/Psyche_(spacecraft)">en.wikipedia.org</a>) (<a href="https://microdevices.jpl.nasa.gov/news/superconducting-nanowire-single-photon-detectors-for-dsoc/">microdevices.jpl.nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;">Short &amp; Sweet</p><p class="" style="white-space:pre-wrap;">— Spacewalk canceled due to Nauka leak (<a href="https://www.space.com/international-space-station-us-spacewalk-delayed-nauka-leak">space.com</a>)</p><p class="" style="white-space:pre-wrap;">— QueSST to fly in 2024 (<a href="https://www.nasa.gov/aeronautics/nasa-targets-2024-for-first-flight-of-x-59-experimental-aircraft/">nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 21 Oct, 2007. Soyuz TMA-10’s ballistic reentry (<a href="https://ruspace.blogspot.com/2008/01/soyuz-tma-10-ballistic-landing-cause.html">ruspace.blogspot.com</a>) (<a href="https://en.wikipedia.org/wiki/Soyuz_TMA-10#Mission_highlights">en.wikipedia.org</a>) (<a href="https://www.youtube.com/watch?v=_v7YgDum2Sg&amp;ab_channel=JaredOwen">youtube.com</a>) (PDF: <a href="https://sma.nasa.gov/SignificantIncidents/assets/james-oberg-soyuz-5-s-flaming-return.pdf">sma.nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (10/24 - 10/30) in 2009: <em>Nominal tumble</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Psyche is on its way to a giant lump of rock and metal. Also, a leak delays an EVA and a supersonic test vehicle gets a test date.</itunes:subtitle><itunes:summary>Psyche is on its way to a giant lump of rock and metal. Also, a leak delays an EVA and a supersonic test vehicle gets a test date.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>01:03:51</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1418314982417-0PNSD5LD6WLV5ZFEWTLM/TOM_2.jpg?format=1500w"/><itunes:title>Episode 430: Iron Sponge</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/652f2f5bd0b43438b72cdd24/1697591260657/Episode-430.mp3" length="53644144" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/652f2f5bd0b43438b72cdd24/1697591260657/Episode-430.mp3" length="53644144" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 430: Iron Sponge</media:title></media:content></item><item><title>Episode 429: DOWNLINK--Ben Reed</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 11 Oct 2023 01:06:59 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/ben-reed</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:6525d1ed0e41586e52a6cc7d</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Tiangong’s expansion (<a href="https://www.hindustantimes.com/technology/china-to-expand-its-space-station-into-six-modules-posing-an-alternative-to-international-space-station-101696501901194.html">hindustantimes.com</a>) (<a href="https://www.cnn.com/2023/10/06/china/china-space-station-double-size-intl-hnk-scn/index.html#:~:text=China%20plans%20to%20expand%20its,the%20end%20of%20its%20lifespan.">cnn.com</a>)</p><p class="" style="white-space:pre-wrap;">— Northrop Grumman joins Starlab team (<a href="https://www.nasa.gov/humans-in-space/commercial-space/nasa-partners-combine-efforts-for-low-earth-orbit-commercial-station/">nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;">— Orbital Reef may be abandoned (<a href="https://www.cnbc.com/2023/09/28/blue-origin-sierra-space-orbital-reef-space-station-in-limbo.html#:~:text=Blue%20originally%20unveiled%20Orbital%20Reef,the%20end%20of%20the%20decade">cnbc.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Luna-25 failure “analysis” (<a href="https://spacenews.com/russia-blames-luna-25-crash-on-computer-glitch/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Stoke Space gets more funding (<a href="https://spacenews.com/stoke-space-raises-100-million-for-reusable-rocket-development/">spacenews</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Interview -- Ben Reed, CTO Quantum Space</strong></p><p class="" style="white-space:pre-wrap;">— <a href="http://www.quantumspace.us">quantumspace.us</a>&nbsp;</p><p class="" style="white-space:pre-wrap;">— <a href="https://www.linkedin.com/company/quantumspace-us/">linkedin.com/company/quantumspace-us/</a>&nbsp;</p><p class="" style="white-space:pre-wrap;">— <a href="https://www.linkedin.com/in/ben-b-reed/">linkedin.com/in/ben-b-reed/</a>&nbsp;</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 11 Oct, 2000: STS-92, the100th shuttle mission (<a href="https://en.wikipedia.org/wiki/STS-92">en.wikipedia.org</a>) (<a href="https://www.nasa.gov/mission/sts-92/">nasa.gov</a>) (<a href="https://ntrs.nasa.gov/citations/20020083039">ntrs.nasa.gov</a>) (<a href="http://www.nasa.gov/centers/johnson/news/shuttle/sts-92/index.html">nasa.gov</a> VIA <a href="https://web.archive.org/web/20130406170109/http://www.nasa.gov/centers/johnson/news/shuttle/sts-92/index.html">web.archive.org</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (10/17 - 10/23) in 2007: Face forward</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Ben Reed and Quantum Space want to build a fleet of repair vehicles that also act as lunar communication relays.</itunes:subtitle><itunes:summary>Ben Reed and Quantum Space want to build a fleet of repair vehicles that also act as lunar communication relays.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>01:29:32</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1696977491465-8LW5BXE37LSL1L05QGGL/Quantum+Space+Ranger+OTV+in+space+.jpg?format=1500w"/><itunes:title>Episode 429: DOWNLINK--Ben Reed</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6525f41b38a72e1f39559138/1696986396684/Episode-429.mp3" length="75214338" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6525f41b38a72e1f39559138/1696986396684/Episode-429.mp3" length="75214338" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 429: DOWNLINK--Ben Reed</media:title></media:content></item><item><title>Episode 428: Actual Human Ballast</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 04 Oct 2023 01:17:44 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/actual-human-ballast</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:651c897d559ccf01319c8a70</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Electron suffers upper stage failure (<a href="https://spacenews.com/electron-fails-during-capella-space-launch/">spacenews.com</a>) (<a href="https://spaceflightnow.com/2023/09/19/radar-imaging-satellite-lost-as-rocket-lab-electron-rocket-suffers-launch-failure/">spaceflightnow.com</a>) (<a href="https://youtu.be/AfYFqsk_NGk?t=2994">youtu.be</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Stoke Space hops (<a href="https://spacenews.com/stoke-space-flies-reusable-upper-stage-prototype/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Sierra Space does a burst test (<a href="https://spacenews.com/sierra-space-tests-inflatable-module-technology/">spacenews</a>)</p><p class="" style="white-space:pre-wrap;">— China plans for lunar sample return (<a href="https://spacenews.com/china-to-attempt-lunar-far-side-sample-return-in-2024/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— A big thanks to Unc’willy, Fonji, Chris S in particular for helping Ben track down and fix an issue with our Discord bot</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— &nbsp;29 September, 2004: Flight 16P of SpaceShipOne (<a href="https://en.wikipedia.org/wiki/SpaceShipOne_flight_16P">en.wikipedia.org</a>) (<a href="https://sma.nasa.gov/SignificantIncidents/assets/combined-white-knight---spaceshipone-flight-tests.pdf">sma.nasa.gov</a>) (<a href="https://erikmadaus.medium.com/this-week-in-rocket-history-spaceshipone-flight-16p-155aee0ce369">erikmadaus.medium.com</a>) (<a href="http://www.airbum.com/pireps/PirepSS1.html">airbum.com</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (10/10 - 10/16) in 2000: Four forbidden cough drops</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Electron suffers an upper stage failure</itunes:subtitle><itunes:summary>Electron experiences its third upper stage failure. Also Stoke Space performs an upper stage test hop, Sierra Space does a habitat module burst test, and China reveals plans to return lunar samples from the far side of the moon!</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:55:42</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/b3c03e59-a8a9-4c03-9246-dc50564b0ed5/ezgif-2-f923dbf8f8.gif?format=1500w"/><itunes:title>Episode 428: Actual Human Ballast</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/651cb9ffa039370f35703e30/1696381481767/Episode-428.mp3" length="46795046" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/651cb9ffa039370f35703e30/1696381481767/Episode-428.mp3" length="46795046" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 428: Actual Human Ballast</media:title></media:content></item><item><title>Episode 427: Pre-Dawn</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 20 Sep 2023 01:07:32 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/pre-dawn</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:650a441c08d0555603b99aaf</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Dawn Aerospace discusses future plans (<a href="https://parabolicarc.com/2023/09/15/dawn-aerospace-aims-launch-satellites-multiple-times-day/">parabolicarc.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Artemis-II gets its engines (<a href="https://www.nasaspaceflight.com/2023/09/rs-25-installation-artemis-ii-core-stage/">nasaspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;">— Firefly launches Victus Nox (<a href="https://spacenews.com/firefly-launches-space-force-victus-nox-mission/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— From the intro: Stoke Space test fires (<a href="https://twitter.com/stoke_space/status/1702316301157622260">twitter.com/stoke_space</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 22 Sep, 1981. Colombia spills NTO before STS-2 (<a href="http://www.16streets.com/39-B/39-B%20Construction%20History%20-%20Space%20Shuttle%20-%20Page%20029.html">16streets.com</a>) (PDF: <a href="https://ntrs.nasa.gov/api/citations/20100042352/downloads/20100042352.pdf">ntrs.nasa.gov</a>) (<a href="https://www.nasa.gov/feature/40-years-ago-preparations-continue-for-columbia-s-return-to-space-on-sts-2">nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (9/26 - 10/2) in 2004: Victory roll</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Dawn Aerospace talks up their HTHL reusable first stage. Also, Artemis-II starts picking up engines, and Victus Nox is in the sky.</itunes:subtitle><itunes:summary>Dawn Aerospace talks up their HTHL reusable first stage. Also, Artemis-II starts picking up engines, and Victus Nox is in the sky.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:41:47</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1695171829390-S8LSX5FD5MNEZW72VQT3/20.jpg?format=1500w"/><itunes:title>Episode 427: Pre-Dawn</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/650a455bb33e3773406e3c30/1695172007555/Episode-427.mp3" length="35106818" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/650a455bb33e3773406e3c30/1695172007555/Episode-427.mp3" length="35106818" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 427: Pre-Dawn</media:title></media:content></item><item><title>Episode 426: Studyin’ The Sun</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 13 Sep 2023 01:48:51 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/studyin-the-sun</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:6500e069a57deb0ba91644d5</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Aditya-L1 studyin’ the Sun (<a href="https://www.space.com/aditya-l1-india-sun-observatory-mission">space.com</a>) (<a href="https://www.eoportal.org/satellite-missions/aditya-1">eoportal.org</a>) (PDF: <a href="http://www.iiap.res.in/meet/sol2011/sol_ppt/RPrasad.pdf">iiap.res.in</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Starship stands corrected (<a href="https://spacenews.com/faa-closes-starship-mishap-investigation-directs-63-corrective-actions-for-spacex/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— MaiaSpace tests cryogenic second stage (<a href="https://europeanspaceflight.com/maiaspace-complete-first-cryogenic-test-of-second-stage-prototype/">europeanspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— From the intro: Apollo LOX tanks (<a href="https://twitter.com/DrPhiltill/status/936853989919834112">twitter.com/DrPhiltill</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 15 Sept, 2017: End of the Cassini mission (<a href="https://en.wikipedia.org/wiki/Cassini%E2%80%93Huygens">en.wikipedia.org</a>) (<a href="https://en.wikipedia.org/wiki/Cassini_retirement">en.wikipedia.org</a>) (PDF: <a href="https://www.lpi.usra.edu/opag/march_08_meeting/presentations/spilker.pdf">lpi.usra.edu</a>) (PDF: <a href="https://engineering.purdue.edu/people/kathleen.howell.1/Publications/Journals/2009_JSR_YamDavLonHowBuf.pdf">engineering.purdue.edu</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (9/19 - 9/25) in 1981: <em>Big F*@&amp;ing Red Spill</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>ISRO launched a spacecraft to L1 to do sun science. Also, Starship corrective actions and MayaSpace tests their second stage.</itunes:subtitle><itunes:summary>ISRO launched a spacecraft to L1 to do sun science. Also, Starship corrective actions and MayaSpace tests their second stage.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:48:22</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1694556384263-5IFGGFNBPJ1FUA30Y33N/ezgif-3-1a446b4b94.gif?format=1500w"/><itunes:title>Episode 426: Studyin’ The Sun</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/650114bcb220fb44cba985ed/1694569703576/Episode-426.mp3" length="40636784" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/650114bcb220fb44cba985ed/1694569703576/Episode-426.mp3" length="40636784" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 426: Studyin’ The Sun</media:title></media:content></item><item><title>Episode 425: Ding Log</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 06 Sep 2023 02:25:57 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/ding-log</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:64f7748d7499f6671a2ceb15</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— OSIRIS-REx prep (<a href="https://www.nasaspaceflight.com/2023/09/osiris-rex-tests/">nasaspaceflight.com</a>) (<a href="https://www.youtube.com/watch?v=4KgAfNIYlns">youtube.com</a>) (<a href="https://spacenews.com/nasa-gears-up-for-return-of-osiris-rex-asteroid-sample/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— New Frontiers competition delayed (<a href="https://spacenews.com/nasa-confirms-multi-year-delay-in-next-new-frontiers-competition/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Ariane 6 hot-fire test delayed (<a href="https://europeanspaceflight.com/a-short-ariane-6-hot-fire-test-has-been-postponed/">europeanspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;">— Otter Pup detumbled! (<a href="https://payloadspace.com/starfish-breaks-otter-pups-death-spiral/">payloadspace.com</a>) (<a href="https://twitter.com/StarfishSpace/status/1696544868536049773">twitter.com/StarfishSpace</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 9 Sept, 2006: The launch of STS-115 Atlantis (<a href="https://www.space.com/2983-nasa-atlantis-shuttle-radiator-struck-object-september-flight.html">space.com</a>) (<a href="https://en.wikipedia.org/wiki/STS-115">en.wikipedia.org</a>) (<a href="https://www.nasa.gov/mission_pages/shuttle/multimedia/sts115/MMOD_impact.html">nasa.gov</a>) (<a href="https://www.nasaspaceflight.com/2006/11/mmod-hit-on-atlantis-was-from-another-vehicle/">nasaspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (9/12 - 9/18) in 2017: Son devoured</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>The OSIRIS-REx team is preparing for their long-awaited sample return! Also, New Frontiers delayed, Ariane hot-fire delayed, and Otter Pup detumbled!</itunes:subtitle><itunes:summary>The OSIRIS-REx team is preparing for their long-awaited sample return! Also, New Frontiers delayed, Ariane hot-fire delayed, and Otter Pup detumbled!</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:54:40</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1693938903966-WJLN7K1ZMH82K28SIM85/IMG_3456.jpg?format=1500w"/><itunes:title>Episode 425: Ding Log</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/64f7e2fe9479106d4a7fbdeb/1696381690405/Episode-425.mp3" length="45919526" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/64f7e2fe9479106d4a7fbdeb/1696381690405/Episode-425.mp3" length="45919526" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 425: Ding Log</media:title></media:content></item><item><title>Episode 424: DOWNLINK--IEEE Senior Member David Witkowski</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 30 Aug 2023 02:00:02 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/david-witkowski</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:64ee5d38ae5f2b27516c1822</guid><description><![CDATA[<p class="" data-rte-preserve-empty="true" style="white-space:pre-wrap;"></p><p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Chandrayaan-3 landing (<a href="https://spacenews.com/chandrayaan-3-india-becomes-fourth-country-to-land-on-the-moon/">spacenews.com</a>) (<a href="https://spacenews.com/chandrayaan-3-is-a-story-of-isros-perseverance-and-triumph/">spacenews.com</a>) (<a href="https://en.wikipedia.org/wiki/Chandrayaan-3">en.wikipedia.org</a>) (<a href="https://www.isro.gov.in/Ch3_Video_Lunar_Orbit_Insertion.html">isro.gov.in</a>) (<a href="https://indianexpress.com/article/explained/explained-sci-tech/after-the-landing-the-experiments-lunar-quakes-and-water-ice-on-moon-8906440/">indianexpress.com</a> VIA <a href="https://12ft.io/proxy?q=https%3A%2F%2Findianexpress.com%2Farticle%2Fexplained%2Fexplained-sci-tech%2Fafter-the-landing-the-experiments-lunar-quakes-and-water-ice-on-moon-8906440%2F">12ft.io</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— From the intro: Starship Booster 9 static fire (with deluge) (<a href="https://twitter.com/SpaceX/status/1695158759717474379">twitter.com/SpaceX</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Interview -- IEEE Senior Member David Witkowski</strong></p><p class="" style="white-space:pre-wrap;">— Further reading: Public Wifi Blueprint (PDF: <a href="https://pages.nist.gov/GCTC/uploads/blueprints/20170823-GCTC-PWSC-Public-WIFI-Blueprint-FINAL-v2.pdf">pages.nist.gov</a>)</p><p class="" style="white-space:pre-wrap;">— <a href="https://twitter.com/w6dtw">twitter.com/w6dtw</a></p><p class="" style="white-space:pre-wrap;">— <a href="http://www.okusolutions.com">okusolutions.com</a>&nbsp;</p><p class="" style="white-space:pre-wrap;">— <a href="https://www.linkedin.com/company/okusolutions">linkedin.com/company/okusolutions</a>&nbsp;</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 30 Aug, 1984. Launch of STS-41D (<a href="https://space.nss.org/space-shuttle-flight-12-sts-41d-post-flight-press-conference-video/">space.nss.org</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (9/5 - 9/11) in 2006: Icicle and pebble</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Learn with us from David Witkowski about wireless networking, cell phones encroaching on HAM frequencies, but not on landing radar &amp; municipal wifi!</itunes:subtitle><itunes:summary>Learn with us from David Witkowski about wireless networking, cell phones encroaching on HAM frequencies, but not on landing radar &amp; municipal wifi!</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>01:52:50</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1693343318360-2PJOCAU3PMSRDQ2ZI9G3/19_KSC-84P-256.jpg?format=1500w"/><itunes:title>Episode 424: DOWNLINK--IEEE Senior Member David Witkowski</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/64eea1f766b3496b5931d8c9/1693360721301/Episode-424.mp3" length="94781515" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/64eea1f766b3496b5931d8c9/1693360721301/Episode-424.mp3" length="94781515" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 424: DOWNLINK--IEEE Senior Member David Witkowski</media:title></media:content></item><item><title>Episode 423: Angular Velocity</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 23 Aug 2023 01:55:50 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/angular-velocity</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:64e55b8eb1095b654b8a9889</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Luna-25 (HT ArcadeEngineer: <a href="https://twitter.com/katlinegrey/status/1693185271804629269">twitter.com/katlinegrey</a>) (<a href="https://spacenews.com/luna-25-crashes-into-moon-after-orbit-maneuver/">spacenews.com</a>) (<a href="https://spacenews.com/luna-25-malfunctions-during-lunar-orbit-maneuver/">spacenews.com</a>) (Paywall: <a href="https://www.russianspaceweb.com/protected/luna-glob-design-propulsion.html">russianspaceweb.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Starship booster coronation (<a href="https://www.nasaspaceflight.com/2023/08/starship-update-aug-23/">nasaspaceflight.com</a>) (<a href="https://twitter.com/SpaceX/status/1692610662604702138?t=ZDJriyAa43AwonhKP0bYtA&amp;s=19">twitter.com/SpaceX</a>)</p><p class="" style="white-space:pre-wrap;">— Intuitive Machines has a launch date (<a href="https://spacenews.com/intuitive-machines-sets-mid-november-launch-date-for-first-lunar-lander/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Russia explores reusable first-stage (<a href="https://aviationweek.com/defense-space/space/russias-krylo-sv-reusable-rocket-conduct-drop-test">aviationweek.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— Benjamin W. via email: Juno’s angular velocity</p><p class="" style="white-space:pre-wrap;">— Luis Mamakos via email: Can you desaturate momentum wheels with the spacecraft?</p><p class="" style="white-space:pre-wrap;">— From the intro: Shuttle hatch (HT Mike Stewart PDF: <a href="https://www.ibiblio.org/apollo/Shuttle/JSC-1117%20-%20Space_Shuttle_Systems_Handbook_Vol3.pdf">ibiblio.org</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 25 Aug, 2003: Launch of Spitzer Space Telescope (<a href="https://en.wikipedia.org/wiki/Spitzer_Space_Telescope">en.wikipedia.org</a>) (<a href="https://www.spitzer.caltech.edu/mission/clever-choice-of-orbit">spitzer.caltech.edu</a>) (PDF: <a href="https://irsa.ipac.caltech.edu/data/SPITZER/docs/spitzermission/missionoverview/spitzertelescopehandbook/Spitzer_Telescope_Handbook.pdf">irsa.ipac.caltech.edu</a>) (PDF: <a href="https://irsa.ipac.caltech.edu/data/SPITZER/docs/spitzermission/reportsandproceedings/meetings/warm/wp/003stauffer.pdf">irsa.ipac.caltech.edu</a>) (<a href="https://spaceflightnow.com/news/n0109/06namesirtf/">spaceflightnow.com</a>)</p><p class="" style="white-space:pre-wrap;">     — Dr. Lee Bennet’s talked to us about Spitzer (<a href="https://theorbitalmechanics.com/show-notes/bennett">theorbitalmechanics.com</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (8/29 - 9/4) in 1984: <em>Icicle</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Luna-25 hit the dirt. Also, Starship vents, Intuitive Machines' launch date, and a reusable Russian booster.</itunes:subtitle><itunes:summary>Luna-25 hit the dirt. Also, Starship vents, Intuitive Machines' launch date, and a reusable Russian booster.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>01:00:33</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1692752897549-3YUNIGR6AW1FCBX44PIB/A91l9l50g_1h5uxdb_jxs.jpg?format=1500w"/><itunes:title>Episode 423: Angular Velocity</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/64e566e593ba4a3f3df948f7/1692755731766/Episode-423.mp3" length="50862886" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/64e566e593ba4a3f3df948f7/1692755731766/Episode-423.mp3" length="50862886" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 423: Angular Velocity</media:title></media:content></item><item><title>Episode 422: Clogged Flashlight</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 16 Aug 2023 01:31:49 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/clogged-flashlight</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:64dc24b76da5475b70c6791e</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Lunar Flashlight failure (<a href="https://spacenews.com/clogged-propellant-lines-doomed-nasa-lunar-cubesat-mission/">spacenews.com</a>) (PDF: <a href="http://mstl.atl.calpoly.edu/~bklofas/Presentations/DevelopersWorkshop2016/5_TravisImken.pdf">mstl.atl.calpoly.edu</a> VIA <a href="https://web.archive.org/web/20190716174809/http://mstl.atl.calpoly.edu:80/~bklofas/Presentations/DevelopersWorkshop2016/5_TravisImken.pdf">web.archive.org</a>) (PDF: <a href="https://ssdl.gatech.edu/sites/default/files/ssdl-files/papers/mastersProjects/AE%208900%20Paper_Talaksi.pdf">ssdl.gatech.edu</a>) (PDF: <a href="https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=5308&amp;context=smallsat">digitalcommons.usu.edu</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Boeing aiming for six Starliner flights to ISS (<a href="https://spacenews.com/first-starliner-crewed-flight-delayed-to-2024/">spacenews.com</a>) (<a href="https://www.nasaspaceflight.com/2023/08/starliner-update/">nasaspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;">— NASA test-fires Mars Ascent Vehicle’s motor (<a href="https://www.space.com/nasa-mars-sample-return-rocket-tests-video">space.com</a>)</p><p class="" style="white-space:pre-wrap;">— To Artemis three or not to three (<a href="https://spacenews.com/nasa-weighs-changes-to-artemis-3-if-key-elements-are-delayed/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 16 August, 1960: Joseph Kittinger made the final Project Excelsior jump (<a href="https://en.wikipedia.org/wiki/Project_Excelsior">en.wikipedia.org</a>) (<a href="https://www.nationalmuseum.af.mil/Visit/Museum-Exhibits/Fact-Sheets/Display/Article/195681/excelsior-gondola/">nationalmuseum.af.mil</a>) (<a href="https://stratocat.com.ar/artics/excelsior-e.htm">stratocat.com.ar</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (8/22 - 8/28) in 2003: Telly McTelescopeface</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Details about the Lunar Flashlight failure are here. Also, Starliner flight plans, MAV engine test, and Artemis 3 alternatives.</itunes:subtitle><itunes:summary>Details about the Lunar Flashlight failure are here. Also, Starliner flight plans, MAV engine test, and Artemis 3 alternatives.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:53:50</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1692149080557-HZY4NST6W1AHYKISQC4Q/AE+8900+Paper_Talaksi_fig20.jpg?format=1500w"/><itunes:title>Episode 422: Clogged Flashlight</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/64dc26a01a26875632bf060a/1692149485657/Episode-422.mp3" length="45223938" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/64dc26a01a26875632bf060a/1692149485657/Episode-422.mp3" length="45223938" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 422: Clogged Flashlight</media:title></media:content></item><item><title>Episode 421: Promethean Ejection</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 09 Aug 2023 00:44:26 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/promethean-ejection</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:64d2ad7ebb41663ebdfeccfd</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Astra Layoffs (<a href="https://spacenews.com/astra-lays-off-reassigns-employees-as-it-refocuses-on-satellite-propulsion/">spacenews.com</a>) (<a href="https://www.cnbc.com/2023/08/04/astra-conducts-layoffs-raises-debt-shifts-focus-to-spacecraft-engines.html">cnbc.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Starship Activities (<a href="https://www.nasaspaceflight.com/2023/08/starship-booster-9-critical-testing-phase/">nasaspaceflight.com</a>) (<a href="https://twitter.com/elonmusk/status/1685048326213828608">twitter.com/elonmusk</a>)</p><p class="" style="white-space:pre-wrap;">— Cygnus gets an upgrade (<a href="https://spacenews.com/northrop-grumman-planning-cygnus-upgrades/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Airbus and Voyager announce commercial space station plans (<a href="https://spacenews.com/voyager-space-and-airbus-create-commercial-space-station-joint-venture/">spacenews.com</a>) (<a href="https://europeanspaceflight.com/airbus-and-voyager-space-announce-commercial-space-station-partnership/">europeanspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;">This Week in Spaceflight History</p><p class="" style="white-space:pre-wrap;">— 11 and 12 Aug, 1962: The launches of Vostok 3 and 4 (<a href="https://www.russianspaceweb.com/vostok3.html">russianspaceweb.com</a>) (<a href="https://www.russianspaceweb.com/spacecraft_manned_first.html">russianspaceweb.com</a>) (<a href="https://www.russianspaceweb.com/vostok_lv.html">russianspaceweb.com</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (8/15 - 8/21) in 1960: <em>That last step is a doozy</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Astra lays off employees and reduces labor on Rocket 4. Also, the state of Starship, Cygnus upgrades, and an Airbus space station.</itunes:subtitle><itunes:summary>Astra lays off employees and reduces labor on Rocket 4. Also, the state of Starship, Cygnus upgrades, and an Airbus space station.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:46:00</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1691528710320-OPDJ2GFSR4YCON5E2HOG/sTnPTafznRpG8pbNMKZCzj-1200-80.jpg?format=1500w"/><itunes:title>Episode 421: Promethean Ejection</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/64d2e0e3a9da28397b52597b/1691541764478/Episode-421.mp3" length="38647664" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/64d2e0e3a9da28397b52597b/1691541764478/Episode-421.mp3" length="38647664" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 421: Promethean Ejection</media:title></media:content></item><item><title>Episode 420: Tipping Point</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 02 Aug 2023 01:08:55 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/tipping-point</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:64c8585b114de07925082358</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— 2023 Tipping Point selections (<a href="https://www.nasa.gov/directorates/spacetech/solicitations/tipping_points/2023_selections">nasa.gov</a>) (<a href="https://www.nasa.gov/press-release/nasa-partners-with-american-companies-on-key-moon-exploration-tech">nasa.gov</a>) (PDF: <a href="https://nspires.nasaprs.com/external/viewrepositorydocument/cmdocumentid=865886/solicitationId=%7B9987D88F-0A12-5203-FC25-423773FAF134%7D/viewSolicitationDocument=1/Tipping%20Point%202022%20AFPP_Amendment%201-2-3-4-5-6-7-8-9-10.pdf">nasaprs.com</a>)</p><p class="" style="white-space:pre-wrap;">    — Blue Origin’s Blue Alchemist separates regolith into several important base materials (<a href="https://www.blueorigin.com/news/blue-alchemist-powers-our-lunar-future">blueorigin.com</a>)</p><p class="" style="white-space:pre-wrap;">    — We talked to Kyla Edison about sintering regolith (<a href="https://theorbitalmechanics.com/show-notes/kyla-edison">theorbitalmechanics.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— HALO’s added cost (<a href="https://spacenews.com/northrop-grumman-takes-36-million-charge-on-nasa-gateway-module/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Sierra Space builds a better engine (<a href="https://spacenews.com/sierra-space-wins-air-force-contract-for-upper-stage-engine-development/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Contact with Voyager 2 lost, thought to be temporary (<a href="https://arstechnica.com/space/2023/07/nasa-temporarily-loses-contact-with-one-of-its-most-distant-spacecraft/">arstechnica.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 5 Aug, 2011. Launch of Juno (<a href="https://en.wikipedia.org/wiki/Juno_(spacecraft)">en.wikipedia.org</a>) (<a href="https://www.nasaspaceflight.com/2018/06/juno-good-health-decision-point-missions-end-extension/">nasaspaceflight.com</a>) (PDF: <a href="https://pds-atmospheres.nmsu.edu/data_and_services/atmospheres_data/JUNO/Juno%20Spacecraft%20Description.pdf">pds-atmospheres.nmsu.edu</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (8/8 - 8/14) in 1962: <em>The Gemini before Gemini</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>NASA issued its latest Tipping Point awards to 11 companies with promising technologies. Also, HALO, Sierra Space, and Voyager 2.</itunes:subtitle><itunes:summary>NASA issued its latest Tipping Point awards to 11 companies with promising technologies. Also, HALO, Sierra Space, and Voyager 2.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>01:03:03</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1690851559348-YZH9VIIYX258X0W1VX8V/joi_burn_art.png?format=1500w"/><itunes:title>Episode 420: Tipping Point</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/64c9ac5af3a4404926532f36/1690938520628/Episode-420.mp3" length="52965378" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/64c9ac5af3a4404926532f36/1690938520628/Episode-420.mp3" length="52965378" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 420: Tipping Point</media:title></media:content></item><item><title>Episode 419: Last Episode Was A Teapot</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 26 Jul 2023 01:33:56 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/last-episode-was-a-teapot</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:64c06ff5d0ce5128928c6117</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— A Commercial Space Station Source Selection (<a href="https://spacenews.com/nasa-offers-details-on-commercial-space-capabilities-agreements/">spacenews.com</a>) (<a href="https://www.nasa.gov/leo-economy/nasa-announces-second-collaborations-for-commercial-space-capabilities">nasa.gov</a>) (PDF: <a href="https://sam.gov/api/prod/opps/v3/opportunities/resources/files/cb2146a5a68b47f2800cc9eb17c07402/download">sam.gov</a>) (<a href="https://news.northropgrumman.com/news/releases/northrop-grumman-signs-agreement-with-nasa-to-design-space-station-for-low-earth-orbit">news.northropgrumman.com</a>) (<a href="https://www.sierraspace.com/newsroom/press-releases/sierra-space-awarded-space-act-agreement-with-nasa/">sierraspace.com</a>) (<a href="https://specialaerospaceservices.com/newsroom/special-aerospace-services-awarded-space-act-agreement-with-nasa/">specialaerospaceservices.com</a>) (<a href="https://www.vastspace.com/updates/vast-is-collaborating-with-nasa">vastspace.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Recently arrived GEO satellites in trouble (<a href="https://spacenews.com/first-astranis-satellite-sidelined-by-post-deployment-glitch/">spacenews.com</a>) (<a href="https://www.youtube.com/watch?v=O8JF1_BBfdk">youtube.com</a>) (<a href="https://arstechnica.com/space/2023/07/viasats-new-broadband-satellite-could-be-a-total-loss/">arstechnica.com</a>)</p><p class="" style="white-space:pre-wrap;">— China develops plan to land humans on Moon before decade’s end (<a href="https://spacenews.com/china-sets-out-preliminary-crewed-lunar-landing-plan/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— Aaron Sawdey: Centaur tank fix (<a href="https://discord.com/channels/137948573605036033/137948573605036033/1131335857060716544">discord.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 29 July, 2014. Launch of ATV-5 George Lemaitre, the last ATV (<a href="https://danielmarin.naukas.com/files/2014/07/Captura-de-pantalla-2014-07-30-a-las-23.51.32.png">danielmarin.naukas.com</a>) (<a href="https://danielmarin.naukas.com/files/2014/07/Captura-de-pantalla-2014-07-31-a-las-13.40.01.png">danielmarin.naukas.com</a>) (<a href="https://www.esa.int/Science_Exploration/Human_and_Robotic_Exploration/ATV/ATV-5_loaded_and_locked">esa.int</a>) (<a href="https://blogs.esa.int/orion/2014/07/16/big-cargo-post-5-0/">blogs.esa.int</a>)</p><p class="" style="white-space:pre-wrap;">    — LIRIS (Laser InfraRed Imaging Sensors) (<a href="https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2014/12/liris_on_atv-5/15105800-1-eng-GB/LIRIS_on_ATV-5_pillars.jpg">esa.int</a>)</p><p class="" style="white-space:pre-wrap;">    — Debris avoidance (<a href="https://blogs.esa.int/orion/2014/10/27/atv-5-pushes-station-out-of-way-of-debris/">blogs.esa.int</a>)</p><p class="" style="white-space:pre-wrap;">    — The shallow reentry that wasn’t (<a href="https://issfd.org/2015/files/downloads/papers/055_Hourtolle.pdf">issfd.org</a>) (<a href="https://blogs.esa.int/orion/2015/02/11/issue-on-the-atv-power-chain-number-4/#more-10405">blogs.esa.int</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (8/1 - 8/7) in 2011: <em>Dim Sun</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>NASA's sharing knowledge to enhance LEO commercial activities. Also, two floundering GEO satellites and China's push to the Moon's surface.</itunes:subtitle><itunes:summary>NASA's sharing knowledge to enhance LEO commercial activities. Also, two floundering GEO satellites and China's push to the Moon's surface.
</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>01:14:12</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1690333357130-6Z7JEEGUMCH45SJNDV5Y/LIRIS_on_ATV-5_pillars.jpg?format=1500w"/><itunes:title>Episode 419: Last Episode Was A Teapot</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/64c077a20e169e246e653642/1690335193757/Episode-419.mp3" length="62341195" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/64c077a20e169e246e653642/1690335193757/Episode-419.mp3" length="62341195" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 419: Last Episode Was A Teapot</media:title></media:content></item><item><title>Episode 418: Denial Test</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 19 Jul 2023 00:58:03 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/denial-test</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:64b5cd6979ca3e1e94095d09</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong><em>Spaceflight News</em></strong></p><p class="" style="white-space:pre-wrap;"><strong><em>Vulcan Centaur delays (</em></strong><a href="https://spacenews.com/centaur-modifications-push-first-vulcan-launch-to-fourth-quarter/"><strong><em>spacenews.com</em></strong></a><strong><em>) (</em></strong><a href="https://www.nasaspaceflight.com/2023/07/vulcan-centaur-anomalies/"><strong><em>nasaspaceflight.com</em></strong></a><strong><em>) (</em></strong><a href="https://spaceflightnow.com/2023/07/13/ula-outlines-path-to-inaugural-vulcan-launch-following-upper-stage-issues/"><strong><em>spaceflightnow.com</em></strong></a><strong><em>)</em></strong></p><p class="" style="white-space:pre-wrap;"><strong><em>Short &amp; Sweet &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</em></strong></p><p class="" style="white-space:pre-wrap;">—  China begins constructing VLEO constellation (<a href="https://spacewatch.global/2023/07/china-begins-construction-of-vleo-satellite-constellation/">spacewatch.global</a>)</p><p class="" style="white-space:pre-wrap;">— LandSpace wins the race (<a href="https://www.nasaspaceflight.com/2023/07/zhuque-2-launch2/">nasaspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;">— Janus canceled (<a href="https://spacenews.com/nasa-cancels-janus-asteroid-smallsat-mission/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong><em>Questions, Comments, Corrections</em></strong></p><p class="" style="white-space:pre-wrap;">— An NSF tour of Astra’s rocket factory (<a href="https://www.youtube.com/watch?v=pSaa5ZNMGYA">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong><em>This Week in Spaceflight History</em></strong></p><p class="" style="white-space:pre-wrap;">— 18 Jul, 2011. Launch of Spektr-R radio telescope (<a href="https://www.russianspaceweb.com/spektr_r.html">russianspaceweb.com</a>) (<a href="https://en.wikipedia.org/wiki/Spektr-R">wiki</a>)</p><p class="" style="white-space:pre-wrap;">— Zenit-3M/Fregat-SB (SB - “сбрасываемые баки” or “drop tanks”) (<a href="https://space.skyrocket.de/doc_stage/fregat.htm">space.skyrocket.de</a>)</p><p class="" style="white-space:pre-wrap;">Next week (7/25 - 7/31) in 2014: He was born in Belgium, and then again in Italy.</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Centaur gets some post-mishap modifications. Also, China is building a VLEO constellation, LandSpace gets to orbit on methane, and Janus gets nixed.</itunes:subtitle><itunes:summary>Centaur gets some post-mishap modifications. Also, China is building a VLEO constellation, LandSpace gets to orbit on methane, and Janus gets nixed.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:54:46</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1689640061931-5I7ISV31TW6HLQT34OZZ/centaurvlift-800x533.jpg?format=1500w"/><itunes:title>Episode 418: Denial Test</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/64b734cf2d4bf556b2ca3f33/1689728257489/Episode-418.mp3" length="46007664" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/64b734cf2d4bf556b2ca3f33/1689728257489/Episode-418.mp3" length="46007664" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 418: Denial Test</media:title></media:content></item><item><title>Episode 417: Mind the Launch Gap</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Tue, 11 Jul 2023 23:38:03 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/mind-the-launch-gap</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:64adca8a2f8af407353fe746</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Au revoir, Ariane 5 (<a href="https://spacenews.com/ariane-5-launches-for-the-final-time/">spacenews.com</a>) (<a href="https://www.nasaspaceflight.com/2023/07/goodbye-ariane-5/">nasaspaceflight.com</a>) (Payload User’s Guide PDF: <a href="https://www.arianespace.com/wp-content/uploads/2011/07/Ariane5_Users-Manual_October2016.pdf">arianespace.com</a>)</p><p class="" style="white-space:pre-wrap;">— Two solids provide ~90% of Ariane 5’s thrust (<a href="https://www.esa.int/Enabling_Support/Space_Transportation/Launch_vehicles/Boosters_EAP">esa.int</a>)</p><p class="" style="white-space:pre-wrap;">— ESA plans to lean on SpaceX launches (<a href="https://spacenews.com/europe-leans-on-spacex-to-bridge-launcher-gap/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— New test facility for Ariane 6 was built in 2019 (<a href="https://www.esa.int/Enabling_Support/Space_Transportation/Ariane/New_test_facility_for_Ariane_6_upper_stage">esa.int</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Varda completes pharmaceutical manufacturing test on-orbit (<a href="https://arstechnica.com/space/2023/07/in-space-manufacturing-startup-aces-pharma-experiment-in-orbit/">arstechnica.com</a>)</p><p class="" style="white-space:pre-wrap;">— Lockheed Martin completes burst test of expandable habitat (<a href="https://spaceref.com/newspace-and-tech/lockheed-martin-inflatable-habitat-subscale-burst-test/">spaceref.com</a>)</p><p class="" style="white-space:pre-wrap;">— Starlink interferes with radio astronomy (<a href="https://spacenews.com/radio-noise-from-satellite-constellations-could-interfere-with-astronomers/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 20 Jul, 2017: Sale of Apollo 11 bag for $1.8m (<a href="http://www.collectspace.com/news/news-072017b-sothebys-space-auction-moon-bag.html">collectspace.com</a>) (<a href="http://www.collectspace.com/news/news-111820a-apollo-11-moon-dust-tape-lawsuit.html">collectspace.com</a>) (<a href="https://www.kansascity.com/news/local/article246961222.html">kansascity.com</a>) (<a href="https://www.sothebys.com/en/auctions/2017/space-exploration-n09759.html#&amp;page=all&amp;sort=lotSortNum-asc&amp;viewMode=list&amp;lot=1&amp;scroll=1625">sothebys.com</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (7/18 - 7/24) in 2011. <em>Radio parasol.</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Ariane 5 completes a long career! Also, space drugs, a burst habitat, and new Starlink noise.</itunes:subtitle><itunes:summary>Ariane 5 completes a long career! Also, space drugs, a burst habitat, and new Starlink noise.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:48:45</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1689111445113-4OINYUN4GA7SS4TIZV06/ezgif-4-30887e269c.jpg?format=1500w"/><itunes:title>Episode 417: Mind the Launch Gap</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/64ade7788201e557a8e66f78/1689118634779/Episode-417.mp3" length="40953126" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/64ade7788201e557a8e66f78/1689118634779/Episode-417.mp3" length="40953126" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 417: Mind the Launch Gap</media:title></media:content></item><item><title>Episode 416: Tenacious Dream Chaser</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 05 Jul 2023 00:47:35 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/tenacious-dream-chaser</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:64a48cd7e281e906a308d3de</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Mars oxygen and helicopter sighting (<a href="https://www.space.com/mars-perseverance-rover-oxygen-experiment-moxie-record">space.com</a>) (HT Stygarfield: <a href="https://www.jpl.nasa.gov/news/nasas-ingenuity-mars-helicopter-phones-home">nasa.gov</a>)&nbsp;</p><p class="" style="white-space:pre-wrap;">— Vega C delayed after engine test failure (<a href="https://europeanspaceflight.com/vega-c-return-to-flight-delayed-after-z40-test-failure/">europeanspaceflight.com</a>) (<a href="https://spacenews.com/vega-c-suffers-setback-in-return-to-flight-effort/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Virgin Galactic completes first fully commercial flight (<a href="https://spacenews.com/virgin-galactic-sets-date-and-announces-crew-for-first-commercial-spaceshiptwo-flight/">spacenews.com</a>) (<a href="https://spacenews.com/virgin-galactic-completes-first-commercial-spaceshiptwo-suborbital-flight/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Euclid telescope prepares for launch (<a href="https://spacenews.com/spacex-to-launch-european-astronomy-mission/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Dream Chaser prepares for launch (<a href="https://spacenews.com/sierra-space-describes-long-term-plans-for-dream-chaser-and-inflatable-modules/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— Unc’ Willy: L2 is closer than the sun, and CMB was discovered in 1964 (<a href="https://discord.com/channels/137948573605036033/137948573605036033/1123462973214695485">discord.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— &nbsp;July 7, 2003: The launch of MER-B (Opportunity) aboard the Delta II Heavy (<a href="https://en.wikipedia.org/wiki/Opportunity_(rover)">en.wikipedia.org</a>) (<a href="https://mars.nasa.gov/mer/mission/timeline/launch/launch-window/">mars.nasa.gov</a>) (<a href="https://theorbitalmechanics.com/show-notes/silvia-alba?rq=opportunity">theorbitalmechanics.com</a>)</p><p class="" style="white-space:pre-wrap;">    — ULA has an excellent payload guide for Delta II (<a href="https://ula.bsshost.me/docs/default-source/rockets/deltaiipayloadplannersguide2007.pdf">ula.bsshost.me</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (7/18 - 7/24) in 2017: <em>Do you ever feel like a sample bag/drifting through the wind, wanting to sue again?</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Ingenuity has been out of communication for two months! Also, a delay for Vega C, Virgin Galactic goes to work, Euclid + Dream Chaser prep for flight</itunes:subtitle><itunes:summary>Ingenuity has been out of communication for two months! Also, a delay for Vega C, Virgin Galactic goes to work, Euclid + Dream Chaser prep for flight</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:27:30</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1688505633461-FO2WKIX4LEGICH1HEBWM/zWRFg5PtrWbQ5jzbDdskVc-1200-80.jpg?format=1500w"/><itunes:title>Episode 416: Tenacious Dream Chaser</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/64a4bd768b45bf499446d79b/1688518028498/Episode-416.mp3" length="23112486" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/64a4bd768b45bf499446d79b/1688518028498/Episode-416.mp3" length="23112486" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 416: Tenacious Dream Chaser</media:title></media:content></item><item><title>Episode 415: Unsupported Separation Type</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 28 Jun 2023 00:33:52 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/unsupported-separation-type</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:649b4f24c5ec9e182cbd1f2e</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Starship hot staging and engine firing&nbsp; (<a href="https://spacenews.com/spacex-changing-starship-stage-separation-ahead-of-next-launch/">spacenews.com</a>)&nbsp; (<a href="https://www.nasaspaceflight.com/2023/06/ship-25-engine-testing/">nasaspaceflight.com</a>) (<a href="https://twitter.com/AshleyKillip/status/1672769984655949826?s=20">twitter.com/AshleyKillip</a>)</p><p class="" style="white-space:pre-wrap;">    — Earlier description of separation flip (<a href="https://www.teslarati.com/spacex-starship-new-simplicity-extremes/">teslarati.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Prometheus test fire (<a href="https://www.nasaspaceflight.com/2023/06/themis-prometheus-hot-fire-test/">nasaspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;">— Anti-ASAT antipathy (<a href="https://spacenews.com/more-countries-encouraged-to-commit-to-halt-destructive-asat-tests/">spacenews</a>)</p><p class="" style="white-space:pre-wrap;">— Launcher’s second OTV fails on orbit (<a href="https://spacenews.com/second-orbiter-transfer-vehicle-malfunctions/">spacenews.com</a>) (<a href="https://www.geekwire.com/2023/spinning-spacecraft-starfish-space-docking-test/">geekwire.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 30 Jun, 2001. Launch of Wilkinson Microwave Anisotropy Probe (WMAP) (<a href="https://en.wikipedia.org/wiki/Wilkinson_Microwave_Anisotropy_Probe">en.wikipedia.org</a>) (<a href="https://wmap.gsfc.nasa.gov/mission/">wmap.gsfc.nasa.gov</a>) (<a href="https://wmap.gsfc.nasa.gov/news/PressRelease_03-056.html">wmap.gsfc.nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (7/4 - 7/10) in 2003: <em>The mass hasn’t changed, but now it’s too heavy</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>SpaceX decides to burn instead of flip during Starship separation. Also, a methalox test fire, anti-ASAT troubles, and another OTV failure.</itunes:subtitle><itunes:summary>SpaceX decides to burn instead of flip during Starship separation. Also, a methalox test fire, anti-ASAT troubles, and another OTV failure.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:52:28</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1687900156540-V382DYSO7T2XGA5WV0XS/NASM-A20060634000-NASM2017-10017.jpg?format=1500w"/><itunes:title>Episode 415: Unsupported Separation Type</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/649b7f3e172ea81a4fe20ab6/1687912298396/Episode-415.mp3" length="44072669" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/649b7f3e172ea81a4fe20ab6/1687912298396/Episode-415.mp3" length="44072669" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 415: Unsupported Separation Type</media:title></media:content></item><item><title>Episode 414: Fire Tornado</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 21 Jun 2023 01:01:22 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/fire-tornado</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:6490fbce313e1777e5adc81f</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— iROSA campaign complete, looking to next campaign (<a href="https://www.americaspace.com/2023/06/15/hoburg-bowen-wrap-up-irosa-installation-fourth-set-of-iss-solar-arrays-manifested-for-2025/">americaspace.com</a>) (<a href="https://www.nasaspaceflight.com/2023/06/iss_irosa_roundup/">nasaspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— ESA reserve astronaut to fly on Axiom flight (<a href="https://europeanspaceflight.com/esa-reserve-astronaut-secures-seat-aboard-axiom-flight/">europeanspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;">— Impulse to supply propulsion for commercial space station (<a href="https://www.vastspace.com/updates/vast-selects-impulse-space-for-haven-1-space-station-propulsion?new=1">vastspace.com</a>)</p><p class="" style="white-space:pre-wrap;">— Rocket Lab goes suborbital (<a href="https://spacenews.com/rocket-lab-launches-first-suborbital-version-of-electron/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— &nbsp;26 Jun, 1971: The third N1 test flight (<a href="https://en.wikipedia.org/wiki/N1_(rocket)">en.wikipedia.org</a>) (<a href="https://www.russianspaceweb.com/n1_6l.html">russianspaceweb.com</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (6/27 - 7/3) in 2001: [audio clue]</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>A sixth, and not final, iROSA has been installed on ISS! Also, a commercial engine for a commercial station, and a regression to suborbital launches.</itunes:subtitle><itunes:summary>A sixth, and not final, iROSA has been installed on ISS! Also, a commercial engine for a commercial station, and a regression to suborbital launches.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:55:03</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1687223675052-B22JKPZDI9CQYAIZLJY9/IMG_8090-scaled.jpg?format=1500w"/><itunes:title>Episode 414: Fire Tornado</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/64924b7570d8b7335c655ef9/1687309219158/Episode-414.mp3" length="46254521" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/64924b7570d8b7335c655ef9/1687309219158/Episode-414.mp3" length="46254521" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 414: Fire Tornado</media:title></media:content></item><item><title>Episode 413: Glob</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 14 Jun 2023 01:27:50 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/glob</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:6488f54f0ce2573ac6d79c68</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Luna-25/Luna-Glob delayed (<a href="https://www.space.com/russia-luna-25-moon-lander-launch-delay-august-2023">space.com</a>) (<a href="https://www.russianspaceweb.com/protected/luna-glob-launch.html">russianspaceweb.com</a>) (<a href="https://www.russianspaceweb.com/protected/luna-glob-design-bku.html">russianspaceweb.com</a>) (<a href="https://en.wikipedia.org/wiki/Luna_25">en.wikipedia.org</a>) (<a href="https://www.russianspaceweb.com/luna_glob_orbiter.html">russianspaceweb.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Firefly and York both make acquisitions (<a href="https://spacenews.com/firefly-aerospace-acquires-spaceflight-inc/">spacenews.com</a>) (<a href="https://spacenews.com/york-space-systems-acquires-emergent-space-technologies/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Egypt to build space-monitoring station (<a href="https://africanews.space/egypt-to-build-a-global-monitoring-station-for-tracking-satellites-and-space-debris/">africanews.space</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 15th June, 1971: Launch of KH-9 Hexagon (<a href="https://en.wikipedia.org/wiki/KH-9_Hexagon">en.wikipedia.org</a>) (<a href="https://aiaa.zoom.us/rec/play/RWT67hxbbfRyqzri6o0GQoTluNgvL_KzHK4blvXYBbOJbMsNJ_ZGC3tz5fqRGSye5vrF945gY1Eoqbv7.nRv4pBJOny_ZG0UW?continueMode=true&amp;_x_zm_rtaid=EzkW22X1Qe-mDrU0jLBq7A.1656681794236.d7ddd5a740715ee234ff2c5edf6bdf3a&amp;_x_zm_rhtaid=522">aiaa.zoom.us</a>) (<a href="https://www.space.com/12996-secret-spy-satellites-declassified-nro.html">space.com</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (6/20 - 6/26) in 1971: Tunguska 2.0</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>The next Russian lunar lander is heading out later this year. Also, Firefly and York acquisitions, and a huge Egyptian LIDAR tracking station.</itunes:subtitle><itunes:summary>The next Russian lunar lander is heading out later this year. Also, Firefly and York acquisitions, and a huge Egyptian LIDAR tracking station.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:42:36</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1686697790996-LSEW3VCODKGI4XOO115X/ezgif-4-f3e7bf20f3.jpg?format=1500w"/><itunes:title>Episode 413: Glob</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/648917620ce2573ac6dc1d1b/1686706057873/Episode-413.mp3" length="35792166" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/648917620ce2573ac6dc1d1b/1686706057873/Episode-413.mp3" length="35792166" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 413: Glob</media:title></media:content></item><item><title>Episode 412: Rocket Suture-y</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 07 Jun 2023 00:21:27 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/rocket-suture-y</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:647f44240e320a73e5793857</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Starliner Woes (<a href="https://spacenews.com/parachute-and-wiring-issues-to-delay-starliner-crewed-test-flight/">spacenews.com</a>) (<a href="https://spacenews.com/nasa-and-boeing-say-preparations-continue-for-july-starliner-test-flight/">spacenews.com</a>) (<a href="https://www.youtube.com/watch?v=nHWtKLk-XH4">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;">    — We tracked down some info on P-213 and P-213LW fiberglass tapes. (PDF: <a href="http://www.hansford.hk/hansford/product/glass_cloth/213.pdf">hansford.hk</a>) (PDF: <a href="https://www.nitto.com/eu/fr/others/products/file/datasheet/PDS_NA_Glass_Cloth_Tape_P-213LW_012020_EN.pdf">nitto.com</a>) (<a href="https://www.spacematdb.com/spacemat/datasearchID.php?name=17408">spacematdb.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— UAE gives details on asteroid mission (<a href="https://spacewatch.global/2023/05/uae-mission-to-asteroid-belt-codename-max/">spacewatch.global</a>)</p><p class="" style="white-space:pre-wrap;">— Commercial deep-space radar (<a href="https://spacenews.com/northrop-grummans-deep-space-radar-passes-critical-design-review/">spacenews.com</a>) (<a href="https://www.satellitetoday.com/government-military/2023/05/31/northrop-grumman-completes-cdr-for-deep-space-advanced-radar-capability/">satellitetoday.com</a>)</p><p class="" style="white-space:pre-wrap;">— North Korean launch failure (<a href="https://spacenews.com/north-koreas-spy-satellite-launch-fails-with-second-stage-malfunction/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— VAXHeadroom: Soyuz roll rate (<a href="https://discord.com/channels/137948573605036033/137948573605036033/1114944070972878878">discord.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 8 June, 2007. Launch of STS-117 (<a href="https://en.wikipedia.org/wiki/STS-117">en.wikipedia.org</a>) (<a href="https://www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts117/main/index.html">nasa.gov</a>) (<a href="https://space.nss.org/space-shuttle-flight-118-sts-117-post-flight-presentation-video/">nss.org</a>) (<a href="https://spaceflightnow.com/shuttle/sts117/070227delay/">spaceflightnow.com</a>) (<a href="https://spacecraftearth.com/portfolio/iss-integrated-truss-structure/">spacecraftearth.com</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (6/13 - 6/19) in 1971: A six-sided system</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Starliner encounters two last-minute issues. Also, UAE's asteroid mission, a commercial deep-space radar, and DPRK's most recent launch failure.</itunes:subtitle><itunes:summary>Starliner encounters two last-minute issues. Also, UAE's asteroid mission, a commercial deep-space radar, and DPRK's most recent launch failure.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>01:00:34</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1686062316181-6599HQL77BV1F85ZKQB4/170471main_07pd0549-lg.jpg?format=1500w"/><itunes:title>Episode 412: Rocket Surgery</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/647fcd069eb8a473829bf572/1686097214371/Episode-412.mp3" length="50878978" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/647fcd069eb8a473829bf572/1686097214371/Episode-412.mp3" length="50878978" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 412: Rocket Surgery</media:title></media:content></item><item><title>Episode 411: Cliff Confusion</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 31 May 2023 00:06:43 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/cliff-confusion</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:64768b3a9c69fd7a7e450aa0</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— HAKUTO-R failure analysis (HT deltaV: <a href="https://twitter.com/DJSnM/status/1662112852797431808?t=1NbMaPUQoXzCdPUcCkttkw">twitter.com/DJSnM</a>) (<a href="https://twitter.com/jeff_foust/status/1662049725917409281?t=MG0RGYe0uPryChr7gptKiw">twitter.com/jeff_foust</a>) (<a href="https://ispace-inc.com/news-en/?p=4691">ispace-inc.com</a>) (<a href="https://spacenews.com/software-problem-blamed-for-ispace-lunar-lander-crash/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">    — Apollo software modeled terrain to avoid this exact issue (PDF HT Mike: <a href="https://www.ibiblio.org/apollo/Documents/LUM147_text.pdf">ibiblio.org</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Virgin Orbit assets sold off (<a href="https://spacenews.com/three-companies-to-buy-most-virgin-orbit-assets/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— ESA folds out a new heat shield (HT Andrew Z: <a href="https://www.esa.int/ESA_Multimedia/Images/2023/05/Origami_heat_shield_reusable_for_reentries">esa.int</a>) (<a href="https://newatlas.com/space/esa-origami-heat-guard/">newatlas.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 1 Jun, 1970: Launch of Soyuz 9 (<a href="https://en.wikipedia.org/wiki/Soyuz_9">en.wikipedia.org</a>) (<a href="https://www.russianspaceweb.com/soyuz9.html">russianspaceweb.com</a>) (<a href="https://www.chessgames.com/perl/chessgame?gid=1259395">chessgames.com</a>) (<a href="http://www.astronautix.com/s/soyuz9.html">astronautix.com</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (6/6 - 6/12) in 2007: <em>Chonky boi</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>HAKUTO-R's failure analysis is in, and simpler than we'd hoped. Also, the sale of Virgin Orbit, and a hot parasol from ESA.</itunes:subtitle><itunes:summary>HAKUTO-R's failure analysis is in, and simpler than we'd hoped. Also, the sale of Virgin Orbit, and a hot parasol from ESA.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:39:36</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1685490699171-RDY03XW36P1E0PLBBEIM/Aldo_Ferruggia_-_Lacus_Mortis.jpg?format=1500w"/><itunes:title>Episode 411: Cliff Confusion</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/64768f4e8e3cf66123b2b083/1685491566240/Episode-411.mp3" length="33270201" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/64768f4e8e3cf66123b2b083/1685491566240/Episode-411.mp3" length="33270201" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 411: Cliff Confusion</media:title></media:content></item><item><title>Episode 410: Sneeze Maneuver</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 24 May 2023 00:28:15 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/sneeze-maneuver</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:646d493401fea9494751ff9f</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Blue Origin wins HLS contract (<a href="https://spaceflightnow.com/2023/05/19/nasa-awards-blue-origin-3-4-billion-artemis-moon-lander-contract/">spaceflightnow.com</a>) (<a href="https://spacenews.com/nasa-selects-blue-origin-to-develop-second-artemis-lunar-lander/">spacenews.com</a>) (<a href="https://www.nasaspaceflight.com/2023/05/twis2023-05-19/">nasaspaceflight.com</a>) (<a href="https://en.wikipedia.org/wiki/Blue_Moon_(spacecraft)">wikipedia.org</a>) (<a href="https://www.nasa.gov/press-release/nasa-selects-blue-origin-as-second-artemis-lunar-lander-provider">nasa.gov</a>) (PDF: <a href="https://sam.gov/api/prod/opps/v3/opportunities/resources/files/22a175c103714b9a9a2da0facceadbcd/download?&amp;token=">sam.gov</a> VIA <a href="https://www.nasa.gov/nextstep/humanlander4">nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— CAPSTONE tests its navigation technology (<a href="https://www.nasa.gov/image-feature/ames/capstone-takes-moon-shot-successfully-tests-navigation-technology">nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;">— End of Lunar Flashlight (<a href="https://spacenews.com/nasa-ends-lunar-flashlight-mission-because-of-thruster-problems/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Core of Roman Space Telescope completed (<a href="https://spaceref.com/newspace-and-tech/208616/">spaceref.com</a> VIA <a href="https://12ft.io/proxy?q=https%3A%2F%2Fspaceref.com%2Fnewspace-and-tech%2F208616%2F">12ft.io</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong>&nbsp;</p><p class="" style="white-space:pre-wrap;">— 23 May, 2016: Suborbital testflight of ISRO’s Reusable Launch Vehicle (<a href="https://www.vssc.gov.in/Reusable_launch_Vehicle.html">vssc.gov.in</a>) (<a href="https://delhidefencereview.com/2020/02/24/a-deep-dive-into-isros-reusable-launch-vehicle-technology-part-i/">delhidefencereview.com</a>) (<a href="https://delhidefencereview.com/2020/05/04/a-deep-dive-into-isros-reusable-launch-vehicle-technology-part-ii/">delhidefencereview.com</a>) (<a href="https://en.wikipedia.org/wiki/RLV_Technology_Demonstration_Programme">en.wikipedia.org</a>) (<a href="https://www.aerospace-technology.com/projects/reusable-launch-vehicle-technology-demonstrator-rlv-td/">aerospace-technology.com</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (5/30 - 6/5) in 1970: <em>King to G8</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Blue Origin submits their own HLS lander and wins a NextSTEP contract! Also, a CAPSTONE nav demo, a Flashlight sneeze, and an RST part.</itunes:subtitle><itunes:summary>Blue Origin submits their own HLS lander and wins a NextSTEP contract! Also, a CAPSTONE nav demo, a Flashlight sneeze, and an RST part.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:56:11</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1684883906780-66AB5DXIPUI05YJ37K6R/fpalift_03_2023_gunnrevb.jpg?format=1500w"/><itunes:title>Episode 410: Sneeze Maneuver</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/646d59e101dd480c18813326/1684888076419/Episode-410.mp3" length="47195138" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/646d59e101dd480c18813326/1684888076419/Episode-410.mp3" length="47195138" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 410: Sneeze Maneuver</media:title></media:content></item><item><title>Episode 409: Carry a Big Stick</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 17 May 2023 00:34:01 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/carry-a-big-stick</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:64641f88dbb46a3d0090cb62</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— China’s spaceplane makes maneuvers (<a href="https://spacenews.com/chinas-spaceplane-conducted-proximity-and-capture-maneuvers-with-subsatellite-data-suggests/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Kosmos-2562 makes maneuvers as well (<a href="https://twitter.com/planet4589/status/1656145400426790912">twitter.com/planet4589</a>) (<a href="https://www.russianspaceweb.com/cosmos-2561.html">russianspaceweb.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Plutonium Depletion (<a href="https://spacenews.com/plutonium-availability-constrains-plans-for-future-planetary-missions/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— ULA prepares for more tests (<a href="https://spacenews.com/ula-prepares-for-new-round-of-vulcan-tests/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— From the intro: Vast and SpaceX shoot for first commercial space station (HT Andy Z.: <a href="https://techcrunch.com/2023/05/10/vast-and-spacex-aim-to-put-the-first-commercial-space-station-in-orbit-in-2025/">techcrunch.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 16 May, 2011. Launch of STS-134 (<a href="https://en.wikipedia.org/wiki/STS-134">en.wikipedia.org</a>) (PDF: <a href="https://www.nasa.gov/pdf/538352main_sts134_presskit_508.pdf">nasa.gov</a>) (<a href="https://www.nasaspaceflight.com/2011/05/the-final-space-shuttle-spacewalk-sts-134-eva-4/">nasaspaceflight.com</a>) (<a href="https://lidarmag.com/2005/10/31/laser-scanning-scanning-space-shuttle-discovery/">lidarmag.com</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (5/23 - 5/29) in 2016: <em>Hex, one of five</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>China's spaceplane made good practice for a private tracking company. Also, Pu-238 production and ULA testing.</itunes:subtitle><itunes:summary>China's spaceplane made good practice for a private tracking company. Also, Pu-238 production and ULA testing.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:45:57</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1684283423772-ZBZ01X3FGKOY48JIGHO1/ezgif-2-da51fca929.jpg?format=1500w"/><itunes:title>Episode 409: Carry a Big Stick</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/646420afdd90c81552e1a36a/1684283606366/Episode-409.mp3" length="38605606" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/646420afdd90c81552e1a36a/1684283606366/Episode-409.mp3" length="38605606" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 409: Carry a Big Stick</media:title></media:content></item><item><title>Episode 408: Swedish Yeetfall</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 10 May 2023 00:04:53 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/swedish-yeetfall</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:645a60bb24df263d852a46ba</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Evolution Space becomes 9th private U.S. company to reach space (<a href="https://twitter.com/evolutionspace_/status/1649803602800832513">twitter.com/evolutionspace_</a>) (<a href="https://parabolicarc.com/2023/04/25/suborbital-launches/">parabolicarc.com</a>)</p><p class="" style="white-space:pre-wrap;">— UP Aerospace rocket rapidly RUDs (<a href="https://gizmodo.com/cremated-remains-astronaut-recovered-failed-launch-1850401214">gizmodo.com</a>) (<a href="https://www.youtube.com/watch?v=V-hcodRV4UU&amp;ab_channel=KVIAABC-7">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;">    — Incredible footage of payload separation was captured in 2015 (HT Stygarfield: <a href="https://www.reddit.com/r/EngineeringPorn/comments/137x1ub/ever_seen_a_stage_separation_in_space_captured_on/">reddit.com</a>) (<a href="https://www.nasa.gov/centers/armstrong/features/rocket_demonstrates_new_capability.html">nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;">— Swedish rocket lands in Norway (<a href="https://www.reuters.com/world/europe/sweden-launches-research-rocket-accidentally-hits-norway-2023-04-25/">reuters.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Dragonfly faces proposed 20% budget cut (<a href="https://spacenews.com/dragonfly-mission-studying-effects-of-potential-budget-cut/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— New prospects for New Horizons (<a href="https://spacenews.com/debate-rages-about-future-of-new-horizons/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— Espen via email: Starship engine data loss, AFTS activation time</p><p class="" style="white-space:pre-wrap;">— Andy Z via email: Starship separation flip</p><p class="" style="white-space:pre-wrap;">— Anderson via DM: Sea launch vs pad reconstruction (<a href="https://discord.com/channels/137948573605036033/137948573605036033/1103854116146520177">HT</a> VaxHeadroom: <a href="https://twitter.com/RyanHansenSpace/status/1653640572903596033/photo/1">twitter.com/RyanHansenSpace</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 13 May, 1998. AsiaSat-3’s lunar flyby (<a href="https://en.wikipedia.org/wiki/PAS-22">en.wikipedia.org</a>)&nbsp; (<a href="https://patents.google.com/patent/US6116545A/en">patents.google.com</a>) (<a href="https://carlkop.home.xs4all.nl/asiasat.html">carlkop.home.xs4all.nl</a>) (<a href="http://www.novosti-kosmonavtiki.ru/content/numbers/177/32.shtml">novosti-kosmonavtiki.ru</a> VIA <a href="https://web.archive.org/web/20120814065906/http://www.novosti-kosmonavtiki.ru:80/content/numbers/177/32.shtml">web.archive.org</a>)</p><p class="" style="white-space:pre-wrap;">    — The DM-2M failure was caused by a duct failure between the gas generator and pump turbine (<a href="https://www.ilslaunch.com/russian-commission-determines-cause-of-amc-14-breeze-m-failure">ilslaunch.com</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (5/16 - 5/22) in 2011: <em>Pass the baton</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>A suborbital launch went off course and landed across borders. Also, a suborbital success, a suborbital failure, and new New Horizons science.</itunes:subtitle><itunes:summary>A suborbital launch went off course and landed across borders. Also, a suborbital success, a suborbital failure, and new New Horizons science.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:50:33</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1683645785345-Z1FNILLAKEUCY8T2PK0J/FuVGc79aIAEzcZd.jpg?format=1500w"/><itunes:title>Episode 408: Swedish Yeetfall</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/645adf3507ba28045e655f3e/1683677019341/Episode-408.mp3" length="42474132" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/645adf3507ba28045e655f3e/1683677019341/Episode-408.mp3" length="42474132" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 408: Swedish Yeetfall</media:title></media:content></item><item><title>Episode 407: Trenchless</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 03 May 2023 01:15:03 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/trenchless</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:6451b3899cf63f3ad6402acf</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Starship update (<a href="https://twitter.com/thesheetztweetz/status/1652451971410935808">twitter.com/thesheetztweetz</a>) (<a href="https://www.americaspace.com/2023/04/26/faa-starship-investigation-may-take-months/?utm_source=rss&amp;utm_medium=rss&amp;utm_campaign=faa-starship-investigation-may-take-months">americaspace.com</a>)</p><p class="" style="white-space:pre-wrap;">— We missed the point of the skydiving pebble story (<a href="https://discord.com/channels/137948573605036033/137948573605036033/1100867017029976074">discord.com</a>) (<a href="https://forum.nasaspaceflight.com/index.php?topic=13405.0">nasaspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;">— H3 failure analysis (<a href="https://twitter.com/Cosmic_Penguin/status/1651482729182277637">twitter.com/Cosmic_Penguin</a>) (PDF: <a href="https://www.mext.go.jp/kaigisiryo/content/20230427-mxt_uchukai01-000029463_1.pdf">mext.go.jp</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Hakuto-R likely in free-fall before loss of signal (HT Sam: <a href="https://twitter.com/ea4gpz/status/1650952680427122701">twitter.com/ea4gpz</a>) (<a href="https://www.space.com/ispace-hakuto-r-moon-landing-failure">space.com</a>) (<a href="https://spacenews.com/first-ispace-lunar-lander-feared-lost/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— China’s space agency sets up lunar base organization (<a href="https://spacenews.com/china-to-establish-organization-to-coordinate-international-moon-base/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Astrobotic books a second Falcon Heavy (<a href="https://spacenews.com/astrobotic-purchases-falcon-heavy-for-third-lunar-lander-mission/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— Bob via email: Starship abort capability (<a href="https://www.youtube.com/watch?v=v6lPMFgZU5Q&amp;ab_channel=EverydayAstronaut">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— Launch of LCS-1 (Lincoln Calibration Sphere) (<a href="https://en.wikipedia.org/wiki/Lincoln_Calibration_Sphere_1">en.wikipedia.org</a>) (<a href="http://www.astronautix.com/l/lcs.html">astronautix.com</a>) (<a href="https://ieeexplore.ieee.org/document/1446249">ieeexplore.ieee.org</a>) (<a href="https://www.youtube.com/watch?v=xPFqWkUx0NI&amp;ab_channel=SciShow">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (5/9 - 5/15) in 1998: Around the elbow to get to the nose</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Musk doubles down on the trench-free lifestyle. Also, Hakuto-R, a China-lead moonbase cooperative, and a ride for Griffin.</itunes:subtitle><itunes:summary>Musk doubles down on the trench-free lifestyle. Also, Hakuto-R, a China-lead moonbase cooperative, and a ride for Griffin.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:42:31</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1683076269575-GJQZYXIV59J9T6PD4SD3/323742b62860dc0f768a349d0e5b95e5.jpg?format=1500w"/><itunes:title>Episode 407: Trenchless</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6451b56504f5e71692143653/1683076489980/Episode-407.mp3" length="35722315" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6451b56504f5e71692143653/1683076489980/Episode-407.mp3" length="35722315" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 407: Trenchless</media:title></media:content></item><item><title>Episode 406: SpaceXcavator</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 26 Apr 2023 01:38:47 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/spacexcavator</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:64487e1967f96e72cf032b6e</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Starship, destroyer of concrete (<a href="https://www.youtube.com/watch?v=w8q24QLXixo">youtube.com</a>) (<a href="https://www.americaspace.com/2023/04/21/starship-orbital-test-flight-raises-serious-questions">americaspace.com</a>) (<a href="https://spacenews.com/starship-lifts-off-on-first-integrated-test-flight-breaks-apart-minutes-later/">spacenews.com</a>) (<a href="https://twitter.com/landru79/status/1649781557995905024">twitter.com/landru79</a>) (HT Iain from MaxQ: <a href="https://twitter.com/unrocket/status/1649425500526329863">twitter.com/unrocket</a>) (<a href="https://twitter.com/elonmusk/status/1649523985837686784">twitter.com/elonmusk</a>)</p><p class="" style="white-space:pre-wrap;">    — Launch tower footage (HT Astro: <a href="https://www.reddit.com/r/space/comments/12uok0z/view_of_the_starship_launch_from_the_launch_tower/">reddit.com/r/space</a>)</p><p class="" style="white-space:pre-wrap;">    — Liftoff footage (note debris impacting water) (<a href="https://twitter.com/SpaceX/status/1649097087248891904">twitter.com/SpaceX</a>)</p><p class="" style="white-space:pre-wrap;">    — High speed footage from Tim Dodd x Consider Cosmos (<a href="https://twitter.com/Erdayastronaut/status/1649515491621216258">twitter.com/Erdayastronaut</a>)</p><p class="" style="white-space:pre-wrap;">    — Aborted launch attempt at the beginning of the week (<a href="https://spacenews.com/spacex-scrubs-first-starship-launch-attempt/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">    — Listener Sam spotted eight engines out, not six (<a href="https://discord.com/channels/137948573605036033/137948573605036033/1098692725487960074">discord.com</a>)</p><p class="" style="white-space:pre-wrap;">    — Leaked (?) final frame before termination (<a href="https://discord.com/channels/137948573605036033/137948573605036033/1098657712415440896">discord.com</a>)</p><p class="" style="white-space:pre-wrap;">    — NWS spotted the launch (<a href="https://twitter.com/NWSBrownsville/status/1649065985587179520">twitter.com/NWSBrownsville</a>)</p><p class="" style="white-space:pre-wrap;">    — “Aspiring” to have no diverter as of 2020 (<a href="https://twitter.com/elonmusk/status/1313952039869788173">twitter.com/elonmusk</a>)</p><p class="" style="white-space:pre-wrap;">    — NSF forums user speaks about the loss of pad experts (HT Sam: <a href="https://forum.nasaspaceflight.com/index.php?topic=58671.msg2478737#msg2478737">forum.nasaspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;">    — Canaveral Starship infrastructure also lacks flame diverter (<a href="https://twitter.com/Cosmic_Andrew1/status/1649904232718381056?s=20">twitter.com/Cosmic_Andrew1</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Swedish astronaut may fly on Axiom mission to ISS (<a href="https://spacenews.com/swedish-astronaut-to-fly-to-iss-on-axiom-mission/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Rocket Lab to reuse flown engine (<a href="https://www.satellitetoday.com/launch/2023/04/19/rocket-lab-plans-to-reuse-engine-on-upcoming-flight/">satellitetoday.com</a>) (<a href="https://spacenews.com/rocket-lab-to-refly-electron-engine/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— Unc’ Willy: A skydiver encounters a rock, and Apollo 12 helps out (<a href="https://www.planetary.org/articles/0419-forensic-ballistics">planetary.org</a>)</p><p class="" style="white-space:pre-wrap;">— Andrew Z: Lifting body footage</p><p class="" style="white-space:pre-wrap;">    — M2-F1 (<a href="https://www.youtube.com/watch?v=DCF2AGXXjsM">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;">    — M2-F2 (<a href="https://www.youtube.com/watch?v=QtO5eO9GqtM">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;">    — M2-F2, M2-F3, HL-10 (<a href="https://www.youtube.com/watch?v=50dDWT48b9M">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;">    — X-24A (<a href="https://www.youtube.com/watch?v=pIna_2XJMw0">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;">    — X-24B (<a href="https://www.youtube.com/watch?v=pXdFoPh3bsg">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;">    — Bonus: Soviet mini spaceplane Spiral MiG-105 (<a href="https://www.youtube.com/watch?v=xPFRvzHk0Mc">youtube.com</a>) (<a href="https://www.youtube.com/watch?v=ZtWK_rnKeLA">youtube.com</a>) (<a href="https://www.youtube.com/watch?v=x6bEhw1K--0">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— Apr 28, 1985. The day before the launch of STS-51-B (<a href="https://en.wikipedia.org/wiki/STS-51-B">en.wikipedia.org</a>) (PDF: <a href="https://spacepresskit.files.wordpress.com/2012/08/sts-51b.pdf">spacepresskit.files.wordpress.com</a>) (<a href="https://www.wikiarchives.space/index.php?/category/685">wikiarchives.space</a>)</p><p class="" style="white-space:pre-wrap;">    — An experiment transport bag was on auction (<a href="https://historical.ha.com/itm/explorers/space-exploration/space-shuttle-spacelab-mvac-large-multiple-experiment-transport-container/a/6045-41205.s">historical.ha.com</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (5/2 - 5/8) in 1965: <em>2 score and 18 years and still going</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Starship's first flight rates 25 out of 33, a real naked rebar kind of launch! Also, a Swede on Axiom and a reflown engine on Electron.</itunes:subtitle><itunes:summary>Starship's first flight rates 25 out of 33, a real naked rebar kind of launch! Also, a Swede on Axiom and a reflown engine on Electron.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>01:09:51</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1682472649883-L0FG6GOKVVPAS43C6OEX/Starship_Flight_Test_007_Desktop_75a84279f5.jpg?format=1500w"/><itunes:title>Episode 406: SpaceXcavator</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/644880390563044e86bcba89/1682473069550/Episode-406.mp3" length="58678566" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/644880390563044e86bcba89/1682473069550/Episode-406.mp3" length="58678566" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 406: SpaceXcavator</media:title></media:content></item><item><title>Episode 405: Niobium's Neat</title><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 19 Apr 2023 01:18:28 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/niobiums-neat</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:643f0ca4abb79a332072d0f4</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— SpaceX cuts costs (<a href="https://spacenews.com/spacex-launches-seventh-transporter-rideshare-mission/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Starship launch license (<a href="https://spacenews.com/faa-issues-license-for-first-starship-integrated-test-flight/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Relativity pivots away from Terran-1 (<a href="https://spacenews.com/relativity-shelves-terran-1-after-one-launch-redesigns-terran-r/">spacenews.com</a>) (<a href="https://techcrunch.com/2023/04/12/so-long-terran-1-relativity-space-makes-hard-pivot-to-an-even-larger-terran-r/">techcrunch.com</a>) (<a href="https://www.relativityspace.com/press-release/2023/4/12/terran-r">relativityspace.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— From the intro: JUICE launch successful (<a href="https://www.nasaspaceflight.com/2023/04/juice-launch/">nasaspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 20 Apr, 2004: The launch of Gravity Probe-B (<a href="https://en.wikipedia.org/wiki/Gravity_Probe_B">en.wikipedia.org</a>) (<a href="https://web.archive.org/web/20090512163541/http://science.nasa.gov/headlines/y2004/26apr_gpbtech.htm">web.archive.org</a>) (<a href="https://einstein.stanford.edu/TECH/technology1.html">einstein.stanford.edu</a>) (<a href="https://www.dontpanicgeocast.com/172">dontpanicgeocast.com</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (4/25 - 5/1) in 1985. <em>Shuttle spelunkin’.</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>SpaceX reduces their niobium consumption, Relativity increases their engine count, and the coolest use of niobium ever.</itunes:subtitle><itunes:summary>SpaceX reduces their niobium consumption, Relativity increases their engine count, and the coolest use of niobium ever.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:51:34</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1681853736195-1ZOCNQQ56IUEOT50XJ5H/rotors_on_blue.jpg?format=1500w"/><itunes:title>Episode 405: Niobium's Neat</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/643f410e039d50579c5969a9/1681867063775/Episode-405.mp3" length="43315641" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/643f410e039d50579c5969a9/1681867063775/Episode-405.mp3" length="43315641" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 405: Niobium's Neat</media:title></media:content></item><item><title>Episode 404: Not Found</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 12 Apr 2023 00:17:45 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/not-found</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:6435be5e1655dd413dcae809</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Centaur explosion (<a href="https://arstechnica.com/science/2023/04/ula-continues-investigation-of-centaur-stage-anomaly/">arstechnica.com</a>) (<a href="https://twitter.com/SciGuySpace/status/1644476021347950593?s=20">twitter.com/SciGuySpace</a>)&nbsp; (<a href="https://twitter.com/torybruno/status/1641270272987676672">twitter.com/torybruno</a>)</p><p class="" style="white-space:pre-wrap;">    — The test stand can be seen in 3D on Google Maps (<a href="https://www.google.com/maps/@34.6304081,-86.6685053,75a,35y,251.03h,78.98t/data=!3m1!1e3">google.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Artemis II crew announced (<a href="https://spacenews.com/nasa-announces-crew-for-artemis-2-mission/">spacenews.com</a>) (<a href="https://www.americaspace.com/2023/04/03/wiseman-commands-ambitious-artemis-ii-as-mission-hardware-comes-together">americaspace.com</a>) (<a href="https://www.nasaspaceflight.com/2023/04/egs-launch-team-artemis-ii/">nasaspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;">— Dawn Aerospace completes successful spaceplane test flight (<a href="https://spacenews.com/dawn-flies-rocket-powered-spaceplane/">spacenews.com</a>) (<a href="https://arstechnica.com/science/2023/04/a-new-zealand-company-has-started-flying-a-rocket-powered-spaceplane/">arstechnica.com</a>)</p><p class="" style="white-space:pre-wrap;">— ISRO completes successful spaceplane test flight (<a href="https://www.isro.gov.in/Reusable_launch_vehicle_autonomous_landing_mission.html">isro.gov.in</a>)</p><p class="" style="white-space:pre-wrap;">— Bathwater By Any Other Name... (<a href="https://spacenews.com/nasa-policy-discourages-naming-missions-after-individuals/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— April 16, 2016. Berthing of BEAM to ISS (<a href="https://en.wikipedia.org/wiki/Bigelow_Expandable_Activity_Module">en.wikipedia.org</a>) (<a href="https://www.eoportal.org/satellite-missions/iss-beam#iss-utilization-beam-bigelow-expandable-activity-module">eoportal.org</a>) (<a href="https://www.nasa.gov/feature/beam-facts-figures-faqs">nasa.gov</a>) (PDF: <a href="https://ttu-ir.tdl.org/bitstream/handle/2346/74174/ICES_2018_214.pdf?sequence=1">ttu-ir.tdl.org</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (4/18 - 4/24) in 2004: <em>Four crystal balls</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Centaur puts on a show! Also, Artemis II crew, a spaceplane test, another spaceplane test, and a NASA naming policy slipped past us.</itunes:subtitle><itunes:summary>Centaur puts on a show! Also, Artemis II crew, a spaceplane test, another spaceplane test, and a NASA naming policy slipped past us.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:45:52</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1681243806648-9SHCU6O4PPCJC3CEH4DJ/FrnN14tacAAXYQU.jpg?format=1500w"/><itunes:title>Episode 404: Not Found</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6435f8756db8560c12f169d0/1681258654062/Episode-404.mp3" length="38537949" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6435f8756db8560c12f169d0/1681258654062/Episode-404.mp3" length="38537949" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 404: Not Found</media:title></media:content></item><item><title>Episode 403: Virgin Deorbit</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 05 Apr 2023 01:36:12 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/2023/4/4/episode-403-virgin-deorbit</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:642ccdcf82fd044f1d3a9a97</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Exploring Mars Together (<a href="https://spacenews.com/nasa-releases-draft-strategy-for-long-term-robotic-mars-exploration/">spacenews.com</a>) (PDF: <a href="https://mars.nasa.gov/files/mep/Mars_Exploration_Program_Future_Plan.pdf">nasa.gov</a>) (<a href="https://spacenews.com/mars-sample-return-cost-growth-threatens-other-science-missions/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Seized assets in Kazakhstan threatens Soyuz-5 program (<a href="https://www.nasaspaceflight.com/2023/03/seized-property-baikonur">nasaspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;">— Virgin Orbit Layoffs (<a href="https://spacenews.com/virgin-orbit-lays-off-most-employees/">spacenews.com</a>) (<a href="https://qz.com/exactly-who-is-the-investor-behind-virgin-orbits-failed-1850288151">qz.com</a>)</p><p class="" style="white-space:pre-wrap;">— Rosotics announces large-scale 3D printer (<a href="https://spacenews.com/rosotics-unveils-3d-printer-for-rocket-tanks-and-fairings/">spacenews.com</a>) (<a href="https://newatlas.com/3d-printing/rosotics-3d-induction-printing/">newatlas.com</a>) (<a href="https://www.rosotics.com/">rosotics.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— From the intro: Tiangong has trash too (<a href="https://twitter.com/cnspaceflight/status/1642176633682690048">twitter.com/cnspaceflight</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 5 April, 1963: A Pontiac Catalina tows M2-F1 (<a href="https://en.wikipedia.org/wiki/NASA_M2-F1">en.wikipedia.org</a>) (<a href="https://www.nasa.gov/centers/dryden/multimedia/imagegallery/M2-F1/EC92-04152.html">nasa.gov</a>) (<a href="http://www.dfrc.nasa.gov/gallery/photo/M2-F1/">dfrc.nasa.gov</a> VIA <a href="https://web.archive.org/web/19990209081315/http://www.dfrc.nasa.gov/gallery/photo/M2-F1/">web.archive.org</a>) (<a href="https://projecthabu.com/post/109735545635">projecthabu.com</a>) (<a href="http://www.dfrc.nasa.gov/gallery/photo/M2-F1/HTML/EC63-206.html">dfrc.nasa.gov</a> VIA <a href="https://web.archive.org/web/19991104060723/http://www.dfrc.nasa.gov/gallery/movie/M2-F1/index.html">web.archive.org</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (4/11 - 4/17) in 2016: <em>Storage on Orbit</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>NASA outlines their future Mars plans. Also, Soyuz-5 threatened, Virgin Orbit layoffs, and an experimental metal printer.</itunes:subtitle><itunes:summary>NASA outlines their future Mars plans. Also, Soyuz-5 threatened, Virgin Orbit layoffs, and an experimental metal printer.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:51:56</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1418314982417-0PNSD5LD6WLV5ZFEWTLM/TOM_2.jpg?format=1500w"/><itunes:title>Episode 403: Virgin Deorbit</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/642cd044abcdad12457899d0/1680658539531/Episode-403.mp3" length="43636738" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/642cd044abcdad12457899d0/1680658539531/Episode-403.mp3" length="43636738" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 403: Virgin Deorbit</media:title></media:content></item><item><title>Episode 402: Rainbow Shock Diamonds</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 29 Mar 2023 00:26:53 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/rainbow-shock</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:642383e61413fb60aefdbceb</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Relativity’s Terran-1 fails to reach orbit (<a href="https://spaceflightnow.com/2023/03/22/relativity-space-terran-1-glhf-2/">spaceflightnow.com</a>) (<a href="https://twitter.com/thetimellis/status/1638985593580408841?s=20">twitter.com/thetimellis</a>) (<a href="https://www.youtube.com/watch?v=bzA0lIwh19c&amp;t=4896s">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Private South Korean company launches suborbital rocket from Brazil (<a href="https://spacenews.com/south-koreas-innospace-succeeds-in-test-launch/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— NS-23 anomaly identified (<a href="https://parabolicarc.com/2023/03/24/blue-origin-shepard-crashed-due-engine-nozzle-failure/">parabolicarc.com</a>)</p><p class="" style="white-space:pre-wrap;">— SWOT, key climate science satellite, instrument back online (<a href="https://www.space.com/nasa-climate-change-satellite-swot-instrument-online">space.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— Aaron: toroidal aerospikes (<a href="https://discord.com/channels/137948573605036033/137948573605036033/1088603626504724580">discord.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 31 March, 1993. Launch of Progress M-17 from Baikonur (<a href="https://en.wikipedia.org/wiki/Progress_M-17">en.wikipedia.org</a>) (PDF: <a href="https://www.hq.nasa.gov/pao/History/SP-4225/documentation/mhh/mirheritage.pdf">hq.nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (4/4 - 4/10) in 1963: Tub in tow</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Relativity Space made their first launch attempt, accomplishing some milestones, but falling short of others. Also, HANBIT, NS-23, and SWOT.</itunes:subtitle><itunes:summary>Relativity Space made their first launch attempt, accomplishing some milestones, but falling short of others. Also, HANBIT, NS-23, and SWOT.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:38:50</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1680049236921-TCSLIZRNRKK5VGIK6MNY/Fr7YtdAWIAAYLXF.jpg?format=1500w"/><itunes:title>Episode 402: Rainbow Shock Diamonds</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6423852aff5a891505c5b72b/1680049478333/Episode-402.mp3" length="32623984" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6423852aff5a891505c5b72b/1680049478333/Episode-402.mp3" length="32623984" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 402: Rainbow Shock Diamonds</media:title></media:content></item><item><title>Episode 401: Ring Around the Heatshield</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 22 Mar 2023 00:26:32 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/ring-around-the-heatshield</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:6418f0d3d1a6ac0a6c4c5977</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Stoke Space prepares for hopper landing trial (HT Andrew Z: <a href="https://twitter.com/stoke_space/status/1637136279375863809">twitter.com/stoke_space</a>)&nbsp; (<a href="https://www.youtube.com/watch?v=EY8nbSwjtEY">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— NASA announces $1B deorbit tug for ISS (<a href="https://spacenews.com/nasa-planning-to-spend-up-to-1-billion-on-space-station-deorbit-module/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Virgin Orbit’s operational pause (<a href="https://spacenews.com/virgin-orbit-pauses-operations/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Axiom reveals the Artemis EVA suit (<a href="https://spacenews.com/axiom-space-reveals-design-of-artemis-spacesuit/">spacenews.com</a>) (<a href="https://www.youtube.com/watch?v=AF3cE6Io_O0">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— March 24, 2006: The first launch of Falcon 1 (<a href="https://www.space.com/2196-spacex-inaugural-falcon-1-rocket-lost-launch.html">space.com</a>) (<a href="https://www.space.com/2643-falcon-1-failure-traced-busted-nut.html">space.com</a>) (<a href="https://en.wikipedia.org/wiki/Falcon_1">en.wikipedia.org</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (3/28 - 4/3) in 1993. <em>Low-power mode.</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>A Stoke Space prepares for a short hop, we review their surprising approach. Also, an ISS deorbit tug, Virgin Orbit's pause, and a new moon suit!</itunes:subtitle><itunes:summary>A Stoke Space prepares for a short hop, we review their surprising approach. Also, an ISS deorbit tug, Virgin Orbit's pause, and a new moon suit!</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:43:32</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1679356187079-K654ZE2ELUPFUDS8SZ2P/FrhGUgJaYAAZl88.jpg?format=1500w"/><itunes:title>Episode 401: Ring Around the Heatshield</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/641a4aad1cbe6f1f0b55986a/1679444687085/Episode-401.mp3" length="36577721" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/641a4aad1cbe6f1f0b55986a/1679444687085/Episode-401.mp3" length="36577721" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 401: Ring Around the Heatshield</media:title></media:content></item><item><title>Episode 400: Dramatic Dogleg</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 15 Mar 2023 01:22:13 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/dramatic-dogleg</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:6410cea54c2a8b433a19d1b7</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— VV22 investigation (HT Sam: <a href="https://www.esa.int/Newsroom/Press_Releases/Loss_of_flight_VV22_Independent_Enquiry_Commission_announces_conclusions">esa.int</a>) (<a href="https://spacenews.com/nozzle-erosion-blamed-for-vega-c-launch-failure/">spacenews.com</a>) (<a href="https://www.arianespace.com/press-release/flight-vv22-failure-arianespace-and-esa-appoint-an-independent-inquiry-commission/">arianespace.com</a>) (<a href="https://www.nasaspaceflight.com/2022/12/vega-c-vv22/">nasaspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— IBEX mission overcomes computer glitch (<a href="https://www.space.com/nasa-ibex-flight-computer-normal-march-2023">space.com</a>)</p><p class="" style="white-space:pre-wrap;">— ISS dodges a satellite (<a href="https://spacenews.com/iss-dodges-commercial-imaging-satellite/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— From the intro: H3’s first flight results (<a href="https://www.nasaspaceflight.com/2023/03/h3-debut-flight/">nasaspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Data Relay: STS-400</strong></p><p class="" style="white-space:pre-wrap;">— STS-400 (<a href="https://www.nasaspaceflight.com/2007/10/sts-400-nasa-draws-up-their-hubble-rescue-plans/">nasaspaceflight.com</a>) (<a href="https://www.nasaspaceflight.com/2008/09/frr-to-discuss-unique-safety-requirements-for-sts-125-and-sts-400/">nasaspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;">    — Two gap fillers removed during EVA on STS-114 (<a href="https://www.spaceflightnow.com/shuttle/sts114/050801gapfiller/index2.html">spaceflightnow.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 14 March 1986: Giotto flies past 1P/Halley. (<a href="https://en.wikipedia.org/wiki/Giotto_(spacecraft)">en.wikipedia.org</a>) (<a href="https://en.wikipedia.org/wiki/Halley_Armada">en.wikipedia.org</a>)</p><p class="" style="white-space:pre-wrap;">    — Thanks to Peter for suggesting this topic (<a href="https://twitter.com/PeterMcMally/status/1367882076087795720">twitter.com/PeterMcMally</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (3/21 - 3/27) in 2006: It’s fine. It’s in what we call a “storage orbit”</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>A deep dive into STS-400 in honor of our fourth double-zero episode. Also, the VV22 investigation, an IBEX glitch, and an ISS maneuver.</itunes:subtitle><itunes:summary>A deep dive into STS-400 in honor of our fourth double-zero episode. Also, the VV22 investigation, an IBEX glitch, and an ISS maneuver.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>01:10:17</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1418314982417-0PNSD5LD6WLV5ZFEWTLM/TOM_2.jpg?format=1500w"/><itunes:title>Episode 400: Dramatic Dogleg</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/64111d5b21ad85092d056401/1678843282887/Episode-400.mp3" length="59042086" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/64111d5b21ad85092d056401/1678843282887/Episode-400.mp3" length="59042086" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 400: Dramatic Dogleg</media:title></media:content></item><item><title>Episode 399: DOWNLINK--D. Geoff Carter, PE</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 08 Mar 2023 02:17:38 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/d-geoff-carter</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:64078a2de1074e0311f0f89a</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— TROPICS-1 mishap investigation (HT Mike Stewart: <a href="https://astra.com/news/conclusion-tropics-1-mishap-investigation/">astra.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— HST impacted by satellite trails (<a href="https://www.nature.com/articles/s41550-023-01903-3">nature.com</a>)</p><p class="" style="white-space:pre-wrap;">— China’s secret spacewalk (<a href="https://spacenews.com/chinas-shenzhou-15-astronauts-conduct-secretive-second-spacewalk/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Interview -- D. Geoff Carter, PE</strong></p><p class="" style="white-space:pre-wrap;">— <a href="http://www.rollaide.com/">RollAide.com</a></p><p class="" style="white-space:pre-wrap;">— <a href="http://artemis-space.com/">artemis-space.com</a></p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— Mar 9, 2008: The launch of the first ATV: Jules Verne (<a href="https://en.wikipedia.org/wiki/Automated_Transfer_Vehicle">en.wikipedia.org</a>) (PDF: <a href="https://esamultimedia.esa.int/docs/ATV/infokit/english/Complete_Infokit_ATVreentry.pdf">esa.int</a>) (PDF: <a href="https://esamultimedia.esa.int/docs/ATV/FS003_12_ATV_updated_launch_2008.pdf">esa.int</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (3/14 - 3/20) in 1986: <em>Slap a renaissance painter.</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>Learn with us from the noted cheese machine designer about testing flextures, aligning space lasers, and roll-up solar arrays.</itunes:subtitle><itunes:summary>Learn with us from the noted cheese machine designer about testing flextures, aligning space lasers, and roll-up solar arrays.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>01:41:24</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1678215801431-TMCZ1GJNS5ERV43T8STR/-Y+ROSA+final+inspection-3035_resized.jpg?format=1500w"/><itunes:title>Episode 399: DOWNLINK--D. Geoff Carter, PE</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6407efc97f0f4a6569c1fe34/1678241818952/Episode-399.mp3" length="85187732" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/6407efc97f0f4a6569c1fe34/1678241818952/Episode-399.mp3" length="85187732" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 399: DOWNLINK--D. Geoff Carter, PE</media:title></media:content></item><item><title>Episode 398: Paint it Black</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 01 Mar 2023 02:14:48 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/paint-it-black</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:63fead44e879653f2e4aac63</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Starship’s near future (<a href="https://spacenews.com/spacex-proceeding-with-starship-orbital-launch-attempt-after-static-fire/">spacenews.com</a>) (<a href="https://www.nasaspaceflight.com/2023/02/starship-delving-deeper/">nasaspaceflight.com</a>) (<a href="https://spacenews.com/the-future-of-starship-includes-national-security-missions/">spacenews.com</a>) (<a href="https://twitter.com/elonmusk/status/1624412830446534656">twitter.com/elonmusk</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— NASA planning for first Gateway logistics mission (<a href="https://spacenews.com/nasa-plans-to-start-work-this-year-on-first-gateway-logistics-mission/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Beetlesat successfully deploys expandable antenna on orbit (<a href="https://spaceref.com/newspace-and-tech/beetlesat-successfully-deploys-leo-satellite-expandable-antenna-in-space/">spaceref.com</a>) (<a href="https://beetlesat.com/great-success-for-the-nissan-nano-iss-antenna-experiment/">beetlesat.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— March 2, 1995, Launch of STS-67, Endeavour (<a href="https://en.wikipedia.org/wiki/STS-67">en.wikipedia.org</a>) (<a href="https://www.spaceline.org/united-states-manned-space-flight/space-shuttle-mission-program-fact-sheets/sts-67/">spaceline.org</a>) (<a href="http://www.astronautix.com/s/sts-67.html">astronautix.com</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (3/7 - 3/13) in 2008: 20 million leagues above the sea (level)</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>A bit of Starship static fire info, and a look at SPX's plans. Also, NASA prepares for Gateway and BeetleSat spreads its wings.</itunes:subtitle><itunes:summary>A bit of Starship static fire info, and a look at SPX's plans. Also, NASA prepares for Gateway and BeetleSat spreads its wings.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:43:43</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1677635174111-4KXKHZNX7P8ML4YTAXH8/Press_Information_Space_Shuttle_Transportation_System_March_1982.jpg?format=1500w"/><itunes:title>Episode 398: Paint it Black</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/63feb4e14e31f01291ca875d/1677636866186/Episode-398.mp3" length="36726566" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/63feb4e14e31f01291ca875d/1677636866186/Episode-398.mp3" length="36726566" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 398: Paint it Black</media:title></media:content></item><item><title>Episode 397: Loss of Cool</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 22 Feb 2023 01:30:47 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/loss-of-cool</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:63f51ff3f8259a5f6c0befa3</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Soyuz MS-22 leak images (HT deltaV: <a href="https://www.russianspaceweb.com/soyuz-ms-22.html#coolant">russianspaceweb.com</a> VIA <a href="https://twitter.com/RussianSpaceWeb/status/1625168250211295233">twitter.com/RussianSpaceWeb</a>)&nbsp;</p><p class="" style="white-space:pre-wrap;">    — Eric Berger posted a comparison to a confirmed MMOD strike (<a href="https://twitter.com/SciGuySpace/status/1625219796760420353/photo/1">twitter.com/SciGuySpace</a>)</p><p class="" style="white-space:pre-wrap;">    — Katya Pavlushchenko posted photos of orange stains on other Progresses (<a href="https://twitter.com/katlinegrey/status/1626839890473234432/photo/1">twitter.com/katlinegrey</a>)</p><p class="" style="white-space:pre-wrap;">    — Uncrewed Soyuz MS-23 delayed (<a href="https://spacenews.com/russia-delays-uncrewed-soyuz-launch-to-investigate-progress-leak/">spacenews.com</a>) (<a href="https://twitter.com/katlinegrey/status/1625941652702433283">twitter.com/katlinegrey</a>)</p><p class="" style="white-space:pre-wrap;">— LauncherOne failure (<a href="https://virginorbit.com/the-latest/virgin-orbit-update-on-uk-mission-anomaly/">virginorbit.com</a>) (<a href="https://spacenews.com/virgin-orbit-elaborates-on-potential-cause-of-launcherone-failure/">spacenews.com</a>) (<a href="https://spacenews.com/virgin-orbit-narrows-down-cause-of-launcherone-failure/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— H3 rocket aborts at pad (<a href="https://spacenews.com/h3-launch-abort/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Plans for Starship comes back to shore (<a href="https://spacenews.com/spacex-drops-plans-to-covert-oil-rigs-into-launch-platforms/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Blue Origin wins ESCAPADE contract (<a href="https://www.space.com/nasa-blue-origin-mars-spacecraft-mission-contract">space.com</a>)</p><p class="" style="white-space:pre-wrap;">— Launcher’s orbital transfer vehicle fails on orbit (<a href="https://spacenews.com/first-launcher-orbital-transfer-vehicle-fails/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— Nate Perkins via email: RS-25 certification (<a href="https://www.youtube.com/watch?v=pORQHY59Qqs&amp;ab_channel=NASA">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;">— Biarki Weeks: ORCASat summary video (<a href="https://www.youtube.com/watch?v=G63-7mH1iBc">youtube.com</a> VIA: <a href="https://discord.com/channels/137948573605036033/137948573605036033/1074746670555873432">discord.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">—&nbsp;24 Feb, 2009. Loss of the Orbiting Carbon Observatory (<a href="https://en.wikipedia.org/wiki/Orbiting_Carbon_Observatory">en.wikipedia.org</a>) (PDF: <a href="https://www.nasa.gov/sites/default/files/atoms/files/oco_glory_public_summary_update_-_for_the_web_-_04302019.pdf">nasa.gov</a>) (<a href="https://www.justice.gov/opa/pr/aluminum-extrusion-manufacturer-agrees-pay-over-46-million-defrauding-customers-including">justice.gov</a>) (<a href="https://llis.nasa.gov/lesson/15702">llis.nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (2/28 - 3/6) in 1995: Everyone get off the phone. I need to log into space.</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>New photos of a leaking Soyuz, and LauncherOne's failure mode are decidedly un-cool. Also, H3's abort, SPX oil rigs, ESCAPADE, and a space tug.</itunes:subtitle><itunes:summary>New photos of a leaking Soyuz, and LauncherOne's failure mode are decidedly un-cool. Also, H3's abort, SPX oil rigs, ESCAPADE, and a space tug.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>01:00:46</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1677009020731-L4R5PM51X37YQGVSZSLK/P1042369-scaled.jpg?format=1500w"/><itunes:title>Episode 397: Loss of Cool</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/63f56f991337184554d1585b/1677029331927/Episode-397.mp3" length="51051595" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/63f56f991337184554d1585b/1677029331927/Episode-397.mp3" length="51051595" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 397: Loss of Cool</media:title></media:content></item><item><title>Episode 396: Valentine Breakup</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 15 Feb 2023 02:09:37 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/valentine-breakup</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:63ec2a4f7419075514abf5de</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Kosmos-2499 breakup (<a href="https://www.russianspaceweb.com/Cosmos-2499.html">russianspaceweb.com</a>) (<a href="https://sattrackcam.blogspot.com/2022/09/kosmos-2558-keeping-its-orbit-close-to.html">sattrackcam.blogspot.com</a>) (<a href="https://www.space.com/russian-satellite-kosmos-2499-breakup-earth-orbit">space.com</a>)</p><p class="" style="white-space:pre-wrap;">— Superheavy static fire (<a href="https://www.nasaspaceflight.com/2023/02/starship-b7-static-fire/">nasaspaceflight.com</a>) (HT Ryan R: <a href="https://twitter.com/elonmusk/status/1623793909959901184">twitter.com/elonmusk</a>) (<a href="https://spacenews.com/spacex-performs-starship-static-fire-test/">spacenews.com</a>) (HT Alex: <a href="https://www.youtube.com/watch?v=dLlLxzU1Mbo">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Progress MS-21 leak (<a href="https://twitter.com/katlinegrey/status/1624389433553219587">twitter.com/katlinegrey</a>) (<a href="https://spacenews.com/progress-cargo-spacecraft-at-iss-suffers-coolant-leak/">spacenews.com</a>) (<a href="https://www.nasaspaceflight.com/2023/02/progress-ms-22/">nasaspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;">— Spaceport Camden saga continues (<a href="https://www.independent.co.uk/news/ap-georgia-national-park-service-lawyers-b2277536.html">independent.co.uk</a>)</p><p class="" style="white-space:pre-wrap;">— Kuiper gets conditional approval (<a href="https://spacenews.com/amazon-gets-key-fcc-approval-for-more-than-3000-leo-broadband-satellites/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— Feb 20, 1986: Launch of DOS-7, the Mir core module (<a href="https://www.russianspaceweb.com/mir_core.html">russianspaceweb.com</a>) (<a href="https://www.youtube.com/watch?v=--qXxZeZq_I&amp;ab_channel=RetroSpaceHD">youtube.com</a>) (<a href="https://en.wikipedia.org/wiki/Mir_Core_Module">en.wikipedia.org</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (2/21 - 2/27) in 2009: <em>Nothing some Wite-Out/Tipp-Ex can’t fix.</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>A Russian satellite broke up just ahead of the hallmark holiday. Also, Super Heavy, Progress MS-21, Camden, and Kuiper!</itunes:subtitle><itunes:summary>A Russian satellite broke up just ahead of the hallmark holiday. Also, Super Heavy, Progress MS-21, Camden, and Kuiper!</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:51:59</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1676421805280-NSHISNCR1FK4S7RDYVVT/Fojf0NyXgAIUlhx.jpg?format=1500w"/><itunes:title>Episode 396: Valentine Breakup</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/63ec3e1a30a9873eac2740a3/1676426948669/Episode-396.mp3" length="43671115" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/63ec3e1a30a9873eac2740a3/1676426948669/Episode-396.mp3" length="43671115" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 396: Valentine Breakup</media:title></media:content></item><item><title>Episode 395: Salvage Mode</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 08 Feb 2023 02:31:36 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/salvage-mode</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:63e2e3bee696133ce163a471</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— SSLV launch failure investigation completed (<a href="https://spacenews.com/isro-completes-investigation-into-sslv-launch-failure/">spacenews.com</a>) (​<a href="https://www.isro.gov.in/mission_SSLV_D1_summary_D2.html">isro.gov.in</a>)</p><p class="" style="white-space:pre-wrap;">    — VTM separation was captured on video, but payload deployment is only seen as a timestamp on a status display. (<a href="https://www.youtube.com/live/m0tsABQCW1M?t=3222">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— NASA confident in A1 software (<a href="https://www.nasaspaceflight.com/2023/02/artemis-1-flight-software/">nasaspaceflight.com</a>)</p><p class="" style="white-space:pre-wrap;">— Peregrine has a new destination (<a href="https://spacenews.com/nasa-changes-landing-site-for-peregrine-lunar-lander/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Perseverance completes sample depot on Mars (​​<a href="https://www.cnet.com/science/space/nasa-mars-rover-triumphantly-completes-first-sample-depot-on-another-world/">cnet.com</a>)</p><p class="" style="white-space:pre-wrap;">    — See also: The Milky Way as seen from Mars (<a href="https://www.reddit.com/r/fakehistoryporn/comments/yj7ply/rare_photograph_of_the_milky_way_viewed_from_mars/">reddit.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— Feb 11, 2015: Launch of the Intermediate eXperimental Vehicle (<a href="https://spaceflight101.com/spacecraft/ixv-intermediate-experimental-vehicle/">spaceflight101.com</a>) (PDF: <a href="https://www.esa.int/esapub/bulletin/bulletin128/bul128h_tumino.pdf">esa.int</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (2/14 - 2/20) in 1986. <em>More computers, more beds </em>😴</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>ISRO published a detailed overview of their SSLV failure investigation. Also, NASA's Artemis I software, Peregrine's landing site, and Mars samples!</itunes:subtitle><itunes:summary>ISRO published a detailed overview of their SSLV failure investigation. Also, NASA's Artemis I software, Peregrine's landing site, and Mars samples!</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:44:43</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1675813849846-AB3NXPHLI82MXGTYIWW8/SSLV-D1%2C_EOS-02_-_EOS-02_and_AzaadiSAT_on_Velocity_Trimming_Module_%28VTM%29_in_cleanroom_before_encapsulation_01.jpg?format=1500w"/><itunes:title>Episode 395: Salvage Mode</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/63e3371cb4457629d1d599e5/1675835197600/Episode-395.mp3" length="37566246" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/63e3371cb4457629d1d599e5/1675835197600/Episode-395.mp3" length="37566246" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 395: Salvage Mode</media:title></media:content></item><item><title>Episode 394: Partial Barber Pole</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 01 Feb 2023 01:47:53 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/partial-barber-pole</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:63d9ba04869a8576418eeb81</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— NASA Tests a Rotating Detonation Rocket Engine (<a href="https://www.nasa.gov/centers/marshall/feature/nasa-validates-revolutionary-propulsion-design-for-deep-space-missions">nasa.gov</a>) (PDF: <a href="https://www.mdpi.com/2226-4310/9/10/581">mdpi.com</a>) (Scott Manley: <a href="https://www.youtube.com/watch?v=rG_Eh0J_4_s">youtube.com</a>) (<a href="https://ntrs.nasa.gov/citations/20220012375">ntrs.nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;">    — JAXA tested an RDRE in 2021 (<a href="https://futurism.com/the-byte/japan-tests-exploding-rocket-engine-first-time-space">futurism.com</a>)</p><p class="" style="white-space:pre-wrap;">    — China tested a CDRE January 2023 (<a href="https://twitter.com/CNSpaceflight/status/1611371419316912128">twitter.com/CNSpaceflight</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Starship WDR (<a href="https://www.nasaspaceflight.com/2023/01/starship-update-jan-23/">nasaspaceflight.com</a>) (<a href="https://spacenews.com/spacex-completes-starship-wet-dress-rehearsal/">spacenews.com</a>) (<a href="https://spacenews.com/spacex-preparing-for-super-heavy-static-fire-test/">spacenews.com</a>) (<a href="https://twitter.com/SpaceX/status/1617676629001801728">twitter.com/SpaceX</a>)</p><p class="" style="white-space:pre-wrap;">— Lucy mission gets new target (<a href="https://spacenews.com/nasa-adds-asteroid-flyby-to-lucy-mission/">spacenews.com</a>) (<a href="https://www.nasa.gov/feature/goddard/2023/nasa-s-lucy-team-announces-new-asteroid-target">nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;">— JunoCam suffers significant anomaly during flyby (<a href="https://www.jpl.nasa.gov/news/nasas-juno-team-assessing-camera-after-48th-flyby-of-jupiter">nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— From the intro: NASA/DARPA NTP Collaboration (<a href="https://www.nasa.gov/press-release/nasa-darpa-will-test-nuclear-engine-for-future-mars-missions">nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;">— Chris Hofmann: Ascent communications</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— January 31, 1971. Launch of Apollo 14 (<a href="https://en.wikipedia.org/wiki/Apollo_14">en.wikipedia.org</a>) (<a href="https://www.hq.nasa.gov/alsj/a14/a14mr-a.htm">hq.nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (2/7 - 2/13) in 2015: <em>Penguin Paratrooper</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>As chemical rockets near their theoretical limits, NASA decides to just rocket harder. Also, Starship's WDR, Lucy's new target and JunoCam's anomaly.</itunes:subtitle><itunes:summary>As chemical rockets near their theoretical limits, NASA decides to just rocket harder. Also, Starship's WDR, Lucy's new target and JunoCam's anomaly.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:48:55</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1675213522498-GMCXNCVZRVLG8WNSGBED/2022-08-fulltest.png?format=1500w"/><itunes:title>Episode 394: Partial Barber Pole</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/63d9c48befff227a11a5808d/1675216052353/Episode-394.mp3" length="41102338" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/63d9c48befff227a11a5808d/1675216052353/Episode-394.mp3" length="41102338" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 394: Partial Barber Pole</media:title></media:content></item><item><title>Episode 393: Sequential Signal Loss</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 25 Jan 2023 02:05:35 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/sequential-signal-loss</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:63d07ddcca5b1e5305ed2a47</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— ABL failure analysis (HT Mike Stewart: <a href="https://twitter.com/ablspacesystems/status/1615751018746376192">twitter.com/ablspacesystems</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— NASA scales back ISS scientist program (<a href="https://spacenews.com/nasa-scales-back-project-to-send-scientists-to-iss/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— JUICE is ready for Jupiter (<a href="https://spacenews.com/europes-jupiter-bound-juice-spacecraft-is-ready-for-april-launch/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Lucy’s Loose Limb (<a href="https://spacenews.com/nasa-suspends-efforts-to-fully-deploy-lucy-solar-array/">spacenews.com</a>) (HT Brown Pau: <a href="https://blogs.nasa.gov/lucy/2023/01/19/nasas-lucy-mission-suspending-further-solar-array-deployment-activities/">blogs.nasa.gov</a>)</p><p class="" style="white-space:pre-wrap;">— ClearSpace raises funds for its first mission (<a href="https://spacenews.com/clearspace-raises-29-million-ahead-of-first-debris-removal-mission/">spacenews</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— From the intro: Vulcan delivered to the Cape (<a href="https://twitter.com/SpaceFlorida/status/1617200673166184448">twitter.com/SpaceFlorida</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— Jan 24, 1985: Launch of STS-51-C (<a href="https://en.wikipedia.org/wiki/STS-51-C">en.wikipedia.org</a>) (<a href="https://satelliteobservation.net/2017/07/31/history-of-the-us-high-altitude-sigint-system/">satelliteobservation.net</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (1/31 - 2/6) in 1971: I re-read the specs, let’s give it another shot.</p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>ABL released their initial DEMO-1 failure analysis, explaining nine simultaneous engine shutdowns. Also, ISS scientists, JUICE, Lucy, and ClearSpace!</itunes:subtitle><itunes:summary>ABL released their initial DEMO-1 failure analysis, explaining nine simultaneous engine shutdowns. Also, ISS scientists, JUICE, Lucy, and ClearSpace!</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:39:12</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1674608161748-YRKKLVRAXZEWDQ5EE4RC/FmxNJnzaMAQiTsk.jpg?format=1500w"/><itunes:title>Episode 393: Sequential Signal Loss</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/63d08e3209882078babd4bd9/1674612308998/Episode-393.mp3" length="32929721" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/63d08e3209882078babd4bd9/1674612308998/Episode-393.mp3" length="32929721" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 393: Sequential Signal Loss</media:title></media:content></item><item><title>Episode 392: Virgin Suborbital</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 18 Jan 2023 02:00:33 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/virgin-suborbital</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:63c7315fed1b6165b9be6e21</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— Soyuz MS-22 rescue (<a href="https://spacenews.com/roscosmos-to-launch-uncrewed-soyuz-to-replace-damaged-spacecraft-at-iss/">spacenews.com</a>) (<a href="https://www.russianspaceweb.com/soyuz-ms-22.html#2023">russianspaceweb.com</a>)</p><p class="" style="white-space:pre-wrap;">— Virgin Orbit failure (<a href="https://spacenews.com/virgin-orbit-blames-launch-failure-on-upper-stage-anomaly/">spacenews.com</a>) (<a href="https://spacenews.com/first-virgin-orbit-u-k-launch-fails/">spacenews.com</a>) (<a href="https://investors.virginorbit.com/news-events/press-releases/detail/66/update-on-start-me-up-mission-anomaly">virginorbit.com</a>)</p><p class="" style="white-space:pre-wrap;">    — Virgin Galactic recently restructured their leadership (<a href="https://spacenews.com/virgin-galactic-restructures-leadership-as-it-prepares-to-resume-flights/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">    — Virgin Orbit is suffering financial woes (<a href="https://arstechnica.com/science/2023/01/even-before-mondays-launch-failure-virgin-orbits-finances-were-dismal/">arstechnica.com</a>)</p><p class="" style="white-space:pre-wrap;">— ABL RS1 failure (<a href="https://spacenews.com/first-abl-space-systems-launch-fails/">spacenews.com</a>) (<a href="https://www.nasaspaceflight.com/2023/01/abl-rs1-demo-1/">nasaspaceflight.com</a>) (HT Sam: <a href="https://twitter.com/ablspacesystems/status/1612960044257247236">twitter.com/ablspacesystems</a>) (HT Sam: <a href="https://twitter.com/shaggrugg/status/1612957462621212673">twitter.com/shaggrugg</a>) (<a href="https://twitter.com/Harry__Stranger/status/1613699359757193217">twitter.com/Harry__Stranger</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— Soyuz-OneWeb hostage negotiations underway (<a href="https://www.russianspaceweb.com/soyuz_lv_2023.html">russianspaceweb.com</a>)</p><p class="" style="white-space:pre-wrap;">— JWST Killing It (<a href="https://spacenews.com/astronomers-celebrate-performance-of-jwst/">spacenews.com</a>) (HT DeltaV: <a href="https://twitter.com/jeff_foust/status/1612554877166825472?t=726lDbvxlRrNIhkuwYlX_A&amp;s=19">twitter.com/jeff_foust</a>)</p><p class="" style="white-space:pre-wrap;">— Starship approaches a launch date? (<a href="https://spacenews.com/spacex-edges-closer-to-first-starship-orbital-launch-attempt/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— January 22, 1968: Launch of Apollo 5 (<a href="https://en.wikipedia.org/wiki/Apollo_5">en.wikipedia.org</a>) (<a href="https://www.americaspace.com/2018/01/21/fire-in-the-hole-50-years-since-apollo-5-first-lunar-module-test-flight/">americaspace.com</a>) (<a href="https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1968-007A">nssdc.gsfc.nasa.gov</a>) (PDF HT Mike Stewart: <a href="https://www.ibiblio.org/apollo/Documents/LM-1%20Trip%20Report%20at%20MSC.pdf">ibiblio.org</a>)</p><p class="" style="white-space:pre-wrap;">    — Destin of Smarter Every Day interviewed a U.S. Space and Rocket Center Docent and Apollo engineer (<a href="https://www.youtube.com/watch?v=1nLHIM2IPRY">youtube.com</a>) (<a href="https://www.youtube.com/watch?v=cUkbdqw9pBk">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;">    — LEM study guides are a great resource for finding answers to systems questions. (<a href="https://www.ibiblio.org/apollo/Documents/lm_structures_study_guide.pdf">ibiblio.org</a>) (<a href="https://www.ibiblio.org/apollo/Documents/lm_propulsion_rcs_study_guide.pdf">ibiblio.org</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (1/24 - 1/30) in 1985. <em>From Lunar Orion to Listening Orion.</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:explicit>false</itunes:explicit><itunes:duration>00:53:53</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1673999094703-BG3NHL4XP92BZLI14RCN/FmKpVAFaMAAo5Jg.jpg?format=1500w"/><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/63c75275205a3b289dd3a2fa/1674007205865/Episode-392.mp3" length="45274406" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/63c75275205a3b289dd3a2fa/1674007205865/Episode-392.mp3" length="45274406" type="audio/mpeg" isDefault="true" medium="audio"/></item><item><title>Episode 391: Galloping Gertie</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 11 Jan 2023 00:15:46 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/galloping-gertie</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:63bdf94a84b2250a94a7aa8f</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— LunaH-Map struggles to enter lunar orbit (<a href="https://spacewatch.global/2023/01/lunar-water-mapping-satellite-struggles-to-get-into-orbit-due-to-faulty-propulsion-system/">spacewatch.global</a>) (PDF: <a href="https://static1.squarespace.com/static/60df2bfb6db9752ed1d79d44/t/610c4176ad8cb2543959e7a6/1628193142983/BIT3_v1.0.pdf">static1.squarespace.com</a> VIA <a href="https://www.busek.com/bit3">busek.com</a>) (PDF: <a href="https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=4396&amp;context=smallsat">digitalcommons.usu.edu</a>)</p><p class="" style="white-space:pre-wrap;">— Korean Pathfinder Lunar Orbiter (KPLO) enters lunar orbit (<a href="https://www.space.com/south-korea-danuri-moon-probe-begins-orbit-entry">space.com</a>)</p><p class="" style="white-space:pre-wrap;">— Hakuto-R M1 successfully completes second maneuver (<a href="https://spaceref.com/space-commerce/ispace-successfully-carries-out-second-hakuto-r-orbital-control-maneuver-2-jan-2023/">spaceref.com</a>) (<a href="http://media.ispace-inc.com/wp-content/uploads/2020/07/ispace_hakuto-r_landerinfographic.jpg">ispace-inc.com</a> VIA <a href="https://hobbyspace.com/Blog/?p=22426">hobbyspace.com</a>)</p><p class="" style="white-space:pre-wrap;">— Chandrayaan-3 fully integrated (<a href="https://www.indiatoday.in/science/story/satellite-fully-integrated-says-isro-chief-on-chandrayaan-3-launch-this-year-2317716-2023-01-05">indiatoday.in</a>) (<a href="https://timesofindia.indiatimes.com/india/chandrayaan-3-plans-indicate-failures-in-chandrayaan-2/articleshow/72128771.cms">indiatimes.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Short &amp; Sweet</strong></p><p class="" style="white-space:pre-wrap;">— China to expand Wenchang spaceport (<a href="https://spacenews.com/china-is-expanding-its-wenchang-spaceport-to-host-commercial-and-crewed-moon-launches/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;">— Impulse Space has a mission (<a href="https://spacenews.com/impulse-space-announces-first-orbital-transfer-vehicle-mission/">spacenews.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>Questions, Comments, Corrections</strong></p><p class="" style="white-space:pre-wrap;">— Dennis is reading Dragonfly by Bryan Burrough (<a href="http://www.bryanburrough.com/books/dragonfly/">bryanburrough.com</a>)</p><p class="" style="white-space:pre-wrap;"><strong>This Week in Spaceflight History</strong></p><p class="" style="white-space:pre-wrap;">— 14 Jan, 2009: Russian thruster firing shakes the ISS (<a href="https://spacenews.com/iss-appears-undamaged-following-january-vibration-incident/">spacenews.com</a>) (<a href="https://www.space.com/4432-nasa-weighs-excessive-vibrations-space-station.html">space.com</a>) (<a href="https://en.wikipedia.org/wiki/Maintenance_of_the_International_Space_Station#2009_%E2%80%93_Excessive_vibration_during_reboost">en.wikipedia.org</a>) (<a href="https://www.nbcnews.com/id/wbna28998876">nbcnews.com</a>) (<a href="https://www.youtube.com/watch?v=CF_hRKqFicQ">youtube.com</a>)</p><p class="" style="white-space:pre-wrap;">— Next week (1/17 - 1/23) in 1968: <em>Fire in the hole</em></p>]]></description><itunes:author>The Orbital Mechanics</itunes:author><itunes:subtitle>A moon mission mélange! Also, Wenchang expansion and Impulse Space on Transporter-9.</itunes:subtitle><itunes:summary>A moon mission mélange! Also, Wenchang expansion and Impulse Space on Transporter-9.</itunes:summary><itunes:explicit>false</itunes:explicit><itunes:duration>00:38:52</itunes:duration><itunes:image href="https://images.squarespace-cdn.com/content/v1/5439a3d0e4b0dedc218f23b9/1673394744320-EZT94X62YVAY4F84V8CP/img_6103.jpg?format=1500w"/><itunes:title>Episode 391: Galloping Gertie</itunes:title><enclosure url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/63bdff1fed14ba00d5f0d9f9/1673396031486/Episode-391.mp3" length="32659092" type="audio/mpeg"/><media:content url="https://static1.squarespace.com/static/5439a3d0e4b0dedc218f23b9/t/63bdff1fed14ba00d5f0d9f9/1673396031486/Episode-391.mp3" length="32659092" type="audio/mpeg" isDefault="true" medium="audio"><media:title type="plain">Episode 391: Galloping Gertie</media:title></media:content></item><item><title>Episode 390: Baby, It’s Coolant Outside</title><category>Episode</category><dc:creator>Ben Etherington</dc:creator><pubDate>Wed, 21 Dec 2022 02:15:29 +0000</pubDate><link>https://theorbitalmechanics.com/show-notes/baby-its-coolant-outside</link><guid isPermaLink="false">5439a3d0e4b0dedc218f23b9:5443f8fce4b0566007c13332:63a268479abb6b7dd609c091</guid><description><![CDATA[<p class="" style="white-space:pre-wrap;"><strong>Spaceflight News</strong></p><p class="" style="white-space:pre-wrap;">— MS-22 coolant leak (<a href="https://arstechnica.com/science/2022/12/heres-what-we-know-and-what-we-dont-about-the-damaged-soyuz-spacecraft/">arstechnic