For the first time, astronomers have reconstructed the magnetic field of an entire cluster of galaxies, from its central nucleus to its outer limits.

The record-breaking achievement is the product of the deepest-ever observations of the galaxy cluster Abell 2255, located around a billion light-years away — and those observations are thanks to the European radio telescope LOFAR (Low Frequency Array).

Abell 2255 has long been known for its complexity in radio waves. Its vast, diffuse radio emissions are created by particles called electrons racing at near-light, or relativistic, speeds and interacting with magnetic fields of galaxies in the cluster. Thus, using Abell 2255 as a cosmic laboratory to study the universe in radio waves could lead scientists to a better understanding of how magnetic fields come about and evolve. These observations could also help paint a picture of the dynamics of hot gas in galaxy clusters. This could reveal how the largest structures in the universe are constructed.

As part of the LOFAR Galaxy Cluster Ultra-Deep Field project, this team used 224 hours of radio image collection to discover that the distribution of large-scale magnetic fields throughout Abell 2255 (which itself stretches out for several million light-years) are not randomly distributed. Instead, these magnetic fields seem to be organized by the motion of gas that occurred during the formation of this galactic cluster.

"Obtaining very sensitive images of galaxy clusters at radio wavelengths is crucial to understanding how electrons are accelerated to relativistic speeds and magnetic fields are amplified on large cosmic scales," team leader Andrea Botteon, of the Italian National Institute for Astrophysics (INAF), said in a statement. "The complexity of these studies is due to the elusiveness of the radio signal from electrons moving in very weak magnetic fields. We believe that the mechanism that 'turns on' these gigantic radio emissions is linked to the formation process of galaxy clusters."

Botteon added that for this research he and his colleagues combined the deepest radio observations ever made with an innovative data analysis technique that allowed them to reconstruct the shape of a galaxy cluster's magnetic field for the first time.

"The coherence of the magnetic field lines observed in some regions of the cluster suggests that the morphology of the field is intimately linked to the dynamics of the gas in which it resides, where it can be 'stretched' or 'compressed' by the motions associated with the formation of the cluster itself," Botteon said.

This analysis revealed that, in some regions, the magnetic fields follow very specific directions, stretching radially along extended radio emissions. In contrast to this, in regions dominated by shock waves, magnetic fields are orientated at tangents. This suggests magnetic fields in Abell 2255 are carved out by the same dynamics that allow clusters to accrete gas and grow.

This serves as the first observational evidence that the same mechanisms that allow galaxies to grow and cluster, creating the largest structures in the universe, also shape their magnetic fields.

The team's research has been accepted for publication in the journal Astronomy & Astrophysics and is available as a pre-peer-reviewed paper on the repository site arXiv.

One thing is for certain: there will absolutely be no shortage of superheroes in Marvel Studios' "Avengers: Doomsday", as evidenced by this first full trailer that showcases everyone from the Wakandans and the X-Men to the Fantastic Four and Earth's Mightiest Heroes, the Avengers.

Plus, we get slivers of a metal-masked Victor Von Doom looming over the mayhem to further whet the appetites of MCU acolytes before the Russo Brothers’ epic lands Dec. 18.

"Something's coming," Downey's Doom declares as the trailer rolls out before later stopping Thor's Stormbreaker axe with two fingers. "Something we may not be able to deter. Before this day is done, we shall be faced with an unthinkable decision."

Opening with a blinding explosion witnessed by Professor X, fans are treated to a cavalcade of nearly everyone in the Marvel Cinematic Universe teaming up to stop a series of multiverse incursions and intentional destructions seemingly orchestrated by the mad monarch of Latveria.

"Beloved heroes from three distinct universes will be set on a deadly collision course and face an existential threat unlike anything they've ever encountered," states the official synopsis for the highly-anticipated $400 million tentpole project.

"Put aside your petty squabbles," Chris Hemsworth's Thor demands as we glimpse Patrick Stewart’s Professor X and Ian McKellen's Magneto together.

Paul Rudd’s Ant-Man arrives to join the party as a welcome addition, as does Channing Tatum reprising his "Deadpool and Wolverine" role as Gambit, who's having a showdown with Simu Liu's Shang-Chi, and a beaded, long-haired Chris Evans as Steve Rogers is surprisingly seen after an encounter with Tom Hiddleston's Loki and his Time Variance Authority character. It's also fun seeing Rogers display his worthiness by snagging Thor's silver hammer! We're just relieved the tone on display is respectful and serious and not choked with jokes and gags as in the most recent MCU outings.

"You are far stronger than all of us put together," the Asgardian warns his brethren in the extended sneak peek. "And they died facing enemies and threats; that's going to be far less than this one. Everything that they sacrificed will be for nothing if we do not stand together."

With its countless superhero cameos and callbacks building to a chaotic crescendo, "Avengers: Doomsday" storms into theaters on Dec. 18, 2026.

SpaceX has pushed the next launch of its Starship megarocket back a few more days.

Elon Musk's company is now targeting Thursday (July 23) for Flight 13 of Starship, the giant, fully reusable vehicle it's developing to help get people to the moon and Mars, among other spaceflight tasks.

If all goes to plan, the 408-foot-tall (124.4 meters) Starship will lift off from SpaceX's Starbase site in South Texas on Thursday during a 90-minute window that opens at 6:45 p.m. EDT (2245 GMT; 5:45 p.m. local Texas time). You can watch the action live here at Space.com, courtesy of SpaceX.

It will be the second launch attempt for Starship Flight 13. The first came last Thursday (July 16) and ended in an abort, which occurred just as the giant rocket's 33 first-stage Raptor engines were firing up.

"To be confident of a good flight, 2 Raptors will be removed & replaced. Most probable launch timing is early next week," Musk said on July 16 via X, the social media platform he owns.

SpaceX first targeted today (July 20) for Flight 13's second try. On Sunday (July 19), however, the company announced that it had pushed that date back to no earlier than Thursday.

Flight 13 will be the second launch of Starship Version 3 (V3), the latest, most advanced iteration of the megarocket. V3 is the variant that will land astronauts on the moon for NASA's Artemis program and fly SpaceX's first Mars missions, if all goes to plan.

The plan for the upcoming suborbital launch is similar to that of Flight 12, which lifted off on May 22. Starship's Super Heavy first stage will aim to steer itself back to Earth for a controlled splashdown in the Gulf of Mexico, while the Ship upper stage will do the same halfway around the world, off the coast of Western Australia.

SpaceX accomplished the latter objective on Flight 12 but not the former; Super Heavy suffered engine issues during its return to Earth and ended up hitting the Gulf waters hard.

Flight 13 will do a few new things, however. For example, it will carry 20 of SpaceX's next-gen Starlink V3 internet satellites, which have never flown to space before. SpaceX plans to build a constellation of 100,000 Starlink V3 spacecraft in low Earth orbit over the coming years, and Starship will do all of the heavy lifting.

These 20 Starlinks won't stay aloft for long, however. Since Ship is flying on a suborbital trajectory, the satellites will come back to Earth relatively quickly — about 20 minutes after deployment, according to SpaceX's Flight 13 mission description.

Starship debuted in April 2023. All of its test flights to date have been suborbital.

Separated by billions of miles and shaped by very different environments, Saturn's smoggy moon Titan and the dwarf planet Pluto have, on paper, little in common.

Titan is a geologically active world cloaked in an atmosphere denser than Earth's, its landscape shaped by seas of liquid methane and vast dunes built from organic particles that rain out of its skies. Pluto, by contrast, is a frigid outpost with a tenuous atmosphere hovering above an icy, frozen surface.

Yet, observations from the James Webb Space Telescope (JWST) have revealed these two disparate worlds share an identical, unexplained infrared signature on their surfaces — a sign that similar chemistry may be unfolding on both worlds despite their stark differences, scientists say.

Detailed in a new study, the feature appears at precisely the same infrared wavelength on both Titan and Pluto, indicating that it absorbs light identically on both worlds. The signal points to the presence of an unknown compound, or a family of related compounds, that scientists have yet to identify.

"It's rather mysterious," Bruno Bézard, a planetary scientist at the Paris Observatory who led the discovery, told Space.com. "We cannot say what it is."

Chasing the signal

ézard first spotted the unexplained feature while analyzing Titan observations from November 2022, when JWST gathered infrared light leaking through the haze in very specific, narrow wavelength bands, allowing scientists to peer directly through the otherwise opaque atmosphere.

To make sense of this light, researchers rely on spectroscopy, a technique used to identify compounds by the specific wavelengths of light they absorb. Because every molecule leaves behind a unique spectral fingerprint that telescopes can detect, astronomers can routinely identify substances across the solar system and beyond, ranging from simple water ice to complex molecules.

But the newly detected feature neither matches any of the standard library spectra cataloged so far, nor does it appear to be a fluke of the hardware, the study notes. The exact same absorption feature was detected by two different JWST instruments — the Near-Infrared Spectrograph (NIRSpec) and the Mid-Infrared Instrument (MIRI) — ruling out the possibility of an instrumental artifact.

After failing to find a match with the cataloged spectral fingerprints of the simplest and most common planetary ices, Bézard wondered whether another world with similar atmospheric chemistry might hold a clue. He turned to his colleague Emmanuel Lellouch of the Paris Observatory, who had led a JWST program that had observed Pluto in May 2023.

"I asked him, 'Do you also have a signature [on Pluto] at this exact wavelength?'" Bézard recalled in the interview with Space.com. "So we looked, and we found that it is present there."

The ground truth

There is no evidence that the mystery molecule is a biosignature, Bézard said. Instead, it likely reflects the kind of prebiotic chemistry that has been operating in Titan's oxygen-free environment for more than 4 billion years.

One compelling possibility is that it belongs to a family of hydrocarbons known as allenes, which the study notes are essentially the only organic compounds known to exhibit strong absorption bands within the same 5-micron infrared range as the mystery signal.

But the allene family contains many complex variations for which complete spectra do not yet exist, Bézard said. Alternatively, the signature could belong to a known molecule whose spectral fingerprint has shifted, potentially because it is mixed with other planetary ices that have not yet been fully cataloged.

"We only have spectra for the simplest of them," Bézard said. "But it is possible that within this family you could find one or several compounds which are present together and make such an absorption feature."

Whatever the compound ultimately proves to be, he and his team believe it forms in the atmosphere through photochemical reactions before eventually "snowing" down onto the surface.

Despite their stark differences, both Titan and Pluto possess atmospheres dominated by nitrogen and methane. Scientists know from spacecraft observations and lab simulations that in the upper reaches of the planets' atmospheres, ultraviolet sunlight breaks these molecules apart, triggering a cascade of highly reactive chemical fragments. These fragments then reassemble into complex organic compounds, some of which condense and snow back down onto the surface below, which is where the JWST detected them.

A couple of different lines of evidence support this atmosphere-to-surface pipeline. First, the team analyzed how the signal behaved across Titan's disk. As the JWST scanned Titan from the center of its circular face toward its outer edge, or limb, the mysterious signal steadily weakened, the study notes.

"This is what you expect if it comes from the surface," said Bézard.

Because of the three-dimensional geometry of looking at a sphere, a signal coming from a flat surface will appear strongest at the center and grow fainter near the edge, where the angle of view through the atmosphere becomes longer and more obscured. This specific dimming trait was not shared by atmospheric carbon monoxide the team checked, which remained essentially unchanged from center to limb, Bézard said, which helped the team infer that this mystery molecule likely resides on the ground.

Pluto offered an independent line of evidence to back up this surface theory. Its near-vacuum atmosphere is physically too thin and sparse to generate an absorption feature of the observed depth, Bézard said, leaving the dwarf planet's solid surface as the only plausible source for the deep signature.

To further test their atmospheric-origin hypothesis, the team studied JWST observations of Jupiter's moon Ganymede. Because Ganymede lacks a nitrogen-methane atmosphere, it cannot run the same photochemical engine like Titan and Pluto do. Sure enough, the researchers found no trace of the mysterious feature, lending additional support to the theory that the compound is uniquely tied to the chemistry of nitrogen and methane skies.

Mapping Titan's surface

More clarity may arrive in the coming months. Researchers are currently analyzing newer JWST observations that provide a more complete view of Titan as it rotates. The data will allow the team to map the mysterious infrared signature across the moon's surface and determine whether it is associated with specific geologic features, such as Titan's vast organic-rich dune fields, which are continually replenished by a slow drizzle of complex particles produced in the atmosphere, Bézard said.

Further clues may have to wait for NASA's Dragonfly mission, a car-sized rotorcraft expected to launch in 2028 and arrive at Titan in the mid-2030s.

Although Dragonfly does not carry an infrared spectrometer to replicate JWST's light measurements, its onboard mass spectrometer will allow it to "taste" organic molecules across the various geologically interesting areas the spacecraft will fly to. By revealing which compounds are actually present on Titan's surface, the mission could give scientists a shortlist of candidates to replicate in laboratories back on Earth to see if they match the traits of the mystery molecule, Bézard said.

"It's always exciting when you discover something that was not seen before," Bézard said. "It's really the nicest part of our job."

The new study was accepted for publication in the journal Astronomy & Astrophysics.

Half a century after first putting hardware down on Mars, NASA is looking to explore the Red Planet's skies.

On July 20, 1976, the Viking 1 lander touched down in the western reaches of Chryse Planitia (the "Golden Plain"), a large circular landform that lies 22.5 degrees north of the Martian equator.

It was the first-ever Mars landing for NASA. Viking 1, along with its twin Viking 2, went on to conduct the first fully successful mission on the Red Planet's surface. (The Soviet Union's Mars 3 probe survived its touchdown attempt on Dec. 2, 1971 but died less than two minutes later.) And those missions have left a rich and intriguing legacy.

Viking 1 and Viking 2 — which touched down in a different Red Planet region on Sept. 3, 1976 — were sent to the surface to search for signs of life on Mars. (Each mission also featured an orbiter, which studied the planet from above.)

The landers did this using three different experiments, two of which returned negative results. But the third, called Labeled Release (LR), was different. LR observed a steady stream of carbon dioxide gas coming from dirt into which it had introduced nutrients — a possible sign of microbial metabolism.

Some scientists deemed the LR results a likely life detection. But most disagreed, ascribing them to abiotic reactions and stressing that, overall, the Viking data paint a picture of a dead planet.

That disagreement illustrates one of the main legacies of the Viking program: It showed researchers that hunting for extraterrestrial life is a complicated business, and they needed to learn more about Mars before attempting the search again on the Red Planet.

NASA didn't send a surface craft to Mars for another two decades, a hiatus caused in part by the Vikings' ambiguous results and high price tag, as well as a shifting of funds to the nascent space shuttle program.

The dry spell was broken in July 1997, when the agency's Pathfinder lander touched down in Chryse Planitia, about 530 miles (850 kilometers) from Viking 1. The main goals of Pathfinder's mission were to demonstrate a new "faster, better, cheaper" method of Mars exploration, prove out a new airbag-based landing system and get a mobile robot onto the red dirt.

Pathfinder achieved all of these objectives, notching the third by deploying a small rover named Sojourner. The little wheeled robot stumbled across rounded pebbles — strong evidence that they had been exposed to flowing water.

This discovery helped shape a new NASA Mars exploration strategy, one that aims to make an informed search for alien life after "following the water." Life as we know it depends on water, so the agency built rovers designed to hunt for signs of past liquid water and potentially habitable environments.

The twin golf-cart-sized rovers Spirit and Opportunity landed in 2004, and the car-sized Curiosity followed suit in August 2012. Then came Perseverance, which landed inside Mars' Jezero Crater in February 2021.

All of these wheeled explorers found evidence of past aqueous environments. Curiosity and Perseverance — with their more extensive and sophisticated scientific payloads — delved even deeper, discovering complex organic molecules that may have been produced by life as we know it.

The two latter rovers are continuing their work; both remain active on the Red Planet. (Pathfinder and Sojourner operated for about three months; Spirit was declared dead in 2010 and Opportunity fell victim to a Mars dust storm in 2018.)

Perseverance has collected a variety of Mars samples, which NASA wants to return to Earth for detailed study. As the Vikings' experience suggests, such a level of intense scrutiny may be necessary to make a definitive detection of life on Mars, if it indeed exists. (Getting those samples home is not a foregone conclusion, however; NASA's original plan was deemed too expensive, and it's now looking into a new return strategy.)

Perseverance also carried a little robotic companion, which heralded a new phase of Red Planet exploration — the Ingenuity helicopter.

Ingenuity was a technology demonstration, designed to show that rotorcraft could effectively ply the thin Red Planet skies. (Mars' atmosphere is just 1% as dense as that of Earth at sea level.)

The $80 million mission was a rousing success. The 4-pound (1.8 kilograms) Ingenuity was expected to make just five short hops on Mars but ended up flying 72 times over the course of nearly three years of activity. (Its first flight occurred on April 19, 2021, and its last was on Jan. 18, 2024.)

So NASA aimed higher, drawing up plans for future helicopter missions that could collect valuable scientific data. And such a mission is on course to launch in 2028, if all goes according to plan: Skyfall, which will send three Ingenuity-like choppers to Mars on a nuclear-powered rocket.

"Equipped with a suite of scientific instruments, these aerial scouts will map hidden ice deposits and analyze weather patterns," NASA officials wrote in a description of Skyfall. "The mission will also demonstrate how aerial vehicles can generate wide terrain and subsurface maps to identify safe and resource-rich destinations for future American astronauts venturing to Mars."

And Skyfall could be just another step toward even more ambitious aerial exploration on the Red Planet. NASA's Jet Propulsion Laboratory in Southern California, which built and operated Ingenuity, is looking into larger, more capable Mars helicopters that could do a wider variety of work on the Red Planet.

This is all part of Viking 1's legacy. That historic touchdown on Mars half a century ago lifted exploration up — all the way into the skies of another world.

In July 2016, "Stranger Things" stormed its way into the pantheon of pop culture greats. Finding the sweet spot of '80s nostalgia, horror, and sci-fi, the Duffer Brothers' series established itself as one of Netflix's flagship shows and a favourite water cooler topic for close to a decade.

Much like "Jurassic Park" encouraged an entire generation to suddenly view paleontology through a new set of eyes, the same can be said about "Stranger Things" and science. Seriously, how many of us discovered the many-worlds theory because of the concept of the Upside Down on the show? Even wormholes are easier to understand now because of Mr Clarke's lessons than whatever the heck happens in "Interstellar" that has Matthew McConaughey bawling like he's been forced to sit through a Jared Leto movie marathon.

Parents and government groups have long highlighted the negative effects of entertainment, but not enough is said about its positive influences, especially the ability to inspire. In fact, it's often underestimated how invaluable a show like "Stranger Things" has been to educators who want to turn around the declining numbers in STEM graduates.

For University of Liverpool physics professor Carsten Welsch, "Star Wars" references were no longer cutting it with his students. However, the "Stranger Things" science allowed him to relate to a younger generation of learners. " It's a really good way to talk about science, which can be quite a challenge, especially with teenagers," Welsch told NPR. "Normally, the moment you mention physics or engineering, they run away."

This is something echoed by Louis Bearson, the director of science, business, and education at the Institute of Physics. Bearson mentioned how some of the devices used on the show and its delicate unpacking of complex topics like quantum physics could widen the appeal of science and physics beyond the explanations in the textbooks.

"One of the issues we have is that physics really needs to be more representative of the community at large," Bearson told The Times. "If we can get a broader base of people interested through things like 'Stranger Things', that's only going to be for the good."

It wasn't only the educators who appreciated the power of "Stranger Things" to connect with others, but also government departments like the U.S. Department of Energy.

The official website used the premise of the Upside Down to explain its own work, especially in terms of its search for other dimensions and how this is done in a real-world setting. While the information was always out there for anybody interested in finding out more, how many people would have read and taken an interest in any of it without the influence of "Stranger Things"?Apart from the natural benefit to educators and government departments wanting to increase the interest in STEM education, "Stranger Things" opened up the doors to something else equally important: intelligent discourse among its fanbase — the kind that's often missing in an online world where trolls walk among us and bring their bad manners from under-the-bridge living.

Reddit and social media forums were flooded with young fans discussing what they watched, the possibilities of where it could go, and even providing explanations to others who might not have understood the scientific concepts. It was encouraging, insightful, and fun, as people learned through interaction and exploration, which to this day is still the best way to learn anything.

In 2017, Olivia Richter, a then-student at the School of Communication and College of Arts and Sciences and writer for The Eagle, wrote a column about how "Stranger Things" served as a modern role model for curiosity.

The author explained how the Hawkins gang expressed "a great thirst for knowledge" and dispelled the notion that being smart or nerdy was something to be ashamed of. "It is encouraging a culture of curiosity and learning in its viewers," Richter wrote. "Much of the science in the show is based in fiction, though it is still highly successful in making science look exciting and fun and creating a model for young people that it is cool to be inquisitive."

Fans demonstrated an example of this ultra-curious attitude after the series finale. Science has always been about hypotheses and proving theories, and this approach was applied to the Conformity Gate theory that spread like wildfire online. Sure, some people might call it a conspiracy theory and looking for something that isn't there, but the fans from around the world rallied to find clues and provide evidence for their unique hypothesis about the show's ending.

They might not have been right in the end — maybe even being deliberately misled by Netflix's marketing — but the fact that they questioned, critiqued, and researched to such an extent is a positive sign that the show's message had an impact. It's also proof that critical thinking isn't dead and intelligent life is still out there.

Say what you want about the final season of "Stranger Things" and whether the ending stuck the landing or not, but there's no disputing the Demogorgon-shaped mark it left on viewers around the globe. More than that, it was a show that provoked curiosity and discovery, as well as encouraging a new generation to find out more about science.

In a world riddled with fake news, false information, endless rage-bait, and sustained pushes for conformity rather than curiosity, we desperately need more neuron-firing programming like this.

All five seasons of "Stranger Things" are on Netflix.

That's two last-second launch aborts in a row for SpaceX.

One of the company's Falcon 9 rockets tried to loft 24 Starlink internet satellites from Vandenberg Space Force Base in California this morning (July 20), but the attempt was aborted just as the first-stage engines started firing up.

Something similar happened on Thursday afternoon (July 16), when SpaceX attempted to launch the 13th test flight of its Starship megarocket.

The two events likely have little in common other than a proximity in time. They involved two very different vehicles, after all: The workhorse Falcon 9 is the most reliable and active rocket on the planet; it has already launched 84 times this year, with zero failures.

Starship, on the other hand, remains in the development-and-testing phase. SpaceX has high hopes for the giant vehicle, which combines full reusability with unprecedented brawn. (It's the biggest and most powerful rocket ever built.)

The two vehicles are also powered by different engines. The Falcon 9's first stage employs nine Merlin 1Ds, whereas Starship's Super Heavy booster uses 33 next-gen Raptors.

SpaceX decided to swap out two of those Raptors ahead of the next Flight 13 launch attempt, which is scheduled for Thursday afternoon (July 23).

The Vandenberg Starlink launch, meanwhile, is back on the docket for Tuesday morning (July 21). It's scheduled to lift off during a nearly four-hour window that opens at 10 a.m. EDT (1400 GMT; 7 a.m. local California time), according to a SpaceX mission description.

NASA has never flown a mission like Artemis III, and it's shaping up to become one of the most elaborate spaceflights in history.

NASA has provided more details about the Artemis III flight scheduled for next year, and, if all goes according to plan, the objectives the astronauts will be checking off their list will contain more than a few "firsts" for the Artemis program and human spaceflight overall. That includes the first crewed NASA mission to rendezvous and dock with two separate designed to carry crews of their own.

Artemis is NASA's next-generation program to return astronauts to the surface of the moon. Artemis III is designed as a test run for NASA's Orion spacecraft in which it will dock and perform operations with the program's two commercial lunar landers — SpaceX's Starship and Blue Origin's Blue Moon. The mission will launch a crew of four aboard Orion on NASA's Space Launch System (SLS) rocket into Earth orbit, where the capsule will rendezvous with each lander separately over the course of about two weeks. Their success will set the stage for a crewed moon landing on Artemis IV, but NASA must first master the complicated demands of Artemis III in order to confidently set its sights on the lunar surface.

"Artemis III will be a highly choreographed dance with a demanding launch sequence across multiple launch pads and equally demanding mission operations for our ground and flight crews, making it one of the most complex and ambitious missions NASA has ever undertaken," said Artemis Program Manager Jeremy Parsons in a NASA update on July 15.

Only one mission in the course of human spaceflight has flown astronauts to rendezvous with multiple spacecraft capable of supporting crews of their own: Soyuz T-15 in 1986, which launched cosmonaut Leonid Kizim to the Salyut 7 space station, and then flew him to, what was at the time, the Soviet Union's MIR space station.

America's space program has come close to such a milestone. NASA's Gemini 10 mission in 1966 launched NASA astronauts John Young and Michael Collins to rendezvous and dock with the uncrewed Agena 10 probe. After undocking, they flew their Gemini capsule to rendezvous with Agena 8, but did not dock with the probe. Two shuttle missions, STS-72 and STS-51A, also managed to rendezvous with separate satellites during their missions, but none of these required the complex coordination and multiple launch vehicles lined up to pull off Artemis III.

Orion, Blue Moon and Starship are all designed to launch on different rockets from different launch pads at NASA's Kennedy Space Center (KSC) and the Cape Canaveral Space Force Station (CCSFS), which will all require cross-agency and commercial collaboration for range availability, resource use constraints like nitrogen gas availability across the various ranges and the alignment of several other overlapping hierarchies of infrastructure in order to ensure Artemis is successful.

Blue Moon will launch on Blue Origin's New Glenn rocket from Space Launch Complex-36 (SLC-36), which it leases from the Space Force at CCSFS. Blue Moon is the first of the three spacecraft set to make it to orbit, and is capable of remaining in space for up to 30 days, according to the NASA update. That will give Blue Origin and NASA an opportunity to confirm the lander's condition and functionality before committing the Artemis III crew and Orion to launch and join it on orbit.

SLS will be next to get off the ground, lifting off from KSC's Launch Complex-39B carrying the Orion spacecraft. Orion will rendezvous with Blue Moon in low Earth orbit (LEO), and will spend about two days docked with the lander. Part of the purpose of Artemis III is to give both lunar lander providers the chance to mature their designs based on actual in-flight data, so neither the Blue Moon nor Starship that fly on the mission will be the spacecrafts' final, landing-capable versions.

Blue Origin will launch the Blue Moon Mark 2 (Mk2), a graduated design of the company's smaller Mk1 cargo lander, which was scheduled to launch a demonstration mission this year. That may be delayed, however, due to an explosion of one of the company's New Glenn rockets during an engine test at SLC-36 in May. With repairs now well underway, Blue Origin CEO Dave Limp has voiced confidence that New Glenn will return to flight by the end of 2026.

Completing that Mk1 mission this year will be just as critical to NASA's moon plans as the launch of Blue Moon Mk2 will be during Artemis III. Among the list of requirements each lander must meet in order for NASA to certify the vehicles to land astronauts on the moon, successfully demonstrating an uncrewed lunar landing is of chief importance.

"SpaceX and Blue Origin have put forward a list of aggressive objectives and goals intended to complement upcoming uncrewed demonstration missions at the moon so that we can gain both understanding and confidence in the spacecraft and launch vehicles prior to a crewed landing," said NASA's Steve Creech, Artemis' Human Landing System program manager, in the mission update.

Once Orion docks with Blue Moon on Artemis III, two of the mission's astronauts will be able to board the lander to test out its environmental control systems, avionics and the interoperability between the two spacecraft in flight. A test article EVA (extravehicular activity) spacesuit designed to mirror what astronauts will wear during future excursions across the lunar surface will launch aboard the Artemis III Blue Moon, and provide engineers data about how the suit will interact within the lander's crew cabin.

Starship won't launch until after Orion and Blue Moon have undocked. SpaceX is currently constructing two Starship towers on Florida's Space Coast, one at KSC's LC-39A, and another at SLC-37, but it's not yet clear which pad will support Artemis III. NASA contracted SpaceX to design a lunar lander version of the spacecraft to deliver astronauts to the surface of the moon on Artemis IV, but SpaceX has that and more in mind for the massive vehicle.

SpaceX has performed test flights of its Super Heavy booster and Ship upper stage, collectively known as Starship, since 2023. The rocket is designed to be fully reusable, and will provide SpaceX a big upgrade from the company's workhorse Falcon 9 rocket. Once operational, SpaceX says Starship will be capable of delivering more than 100 tons to LEO. But SpaceX is still chasing that operational status.

Despite its dozen launches to space, and counting, Starship is still very much in a developmental stage, and has yet to meet many of NASA's requirements to fly a crewed lunar landing. SpaceX introduced the "Version 3" (V3) Starship on its Flight-12 launch in May, and intends to fly the same design when it launches Starship on Artemis III, with a docking adapter for connecting with Orion. For the astronauts, that means no crew cabin to enter. Instead, Orion and Starship will test communications and maneuvering systems between both vehicles.

Starship's V3 upgrade includes hardware that will be needed for an actual moon landing mission, like docking ports to perform propellant transfers in space — Starship requires refueling from tanker Ships on orbit in order to fly beyond LEO, and NASA estimates at least 15 Starship refueling launches will be needed for Artemis IV. Transferring and storing those cryogenic fuels in space is another capability Starship (and Blue Moon) needs to demonstrate before it can perform crewed lunar landings.

For Artemis III, though, Starship and Blue Moon will each only require one launch to get the job done, and NASA wants to give them ample room to do so. "All three rockets will have more launch opportunities than are available for a lunar mission and will be able to reach the designated mission altitude in a single launch," the NASA update said.

Orion and the Artemis III crew will stay docked with Starship for about a day before detaching to begin preparations for their return to Earth. Similar to the return of Artemis II in April, the Artemis III astronauts will target a parachute-assisted splashdown aboard Orion in the Pacific Ocean, off the United States' West Coast.

Successful operations with both landers on Artemis III would pave the way for NASA's lunar landing plans on Artemis IV, currently scheduled for 2028. Barring any development delays or complications during Artemis III, Starship is the vehicle NASA has selected to carry out the Artemis IV moon landing, the first return of astronauts to the lunar surface in more than half a century.

For ten glorious days starting on April 1, 2026, one human endeavor captivated our home planet across continents and time zones: the NASA Artemis II mission to orbit the moon, the first crewed mission to cislunar space since 1972. In an Easter-Passover week that had especially demoralizing headlines on global conflicts, this mission presented a powerful vision of what journeying together and taking enormous risks for a shared purpose towards a shared future could look like.

Much has been spoken and written about the scientific and personal achievements of the Artemis II mission and its trailblazing astronauts. Their humanity, and what it did for humankind at large, is perhaps a quieter yet just-as-celebratory achievement.

In a time of trillion-dollar AI IPOs, when the seemingly planned obsolescence of humanity itself looms on our collective horizon, the Artemis II astronauts reminded us that they considered it the honor of a lifetime to do this for us - and as us - while transmitting daily that they couldn’t wait to come home to us. As Christina Koch shared at the end of the translunar injection burn (TLI) on day 2, while Artemis II set its course to leave Earth's orbital space for the moon as well as its return trajectory: "With this translunar injection burn, we do not leave Earth. We choose it."

From their morning wake-up music playlists (which inspired many to enquire about submitting their compositions for future crewed missions), to the reading out of their menus and details of their daily workouts or sleep schedules, we were reminded that these astronauts were navigating with us in real time the humdrum work of staying alive while conducting amazing science. This signal reached Earth as a continuous invitation to fellowship, and the record-breaking viewership of Artemis II built like a slow cooker feast, with global engagement increasing from launch to splashdown.

The Artemis II livestream introduced many viewers to the unavoidable aspects of spaceflight missions, such as the timing lag and blackouts in communications that will endure regardless of future technological advancements.

Sometimes this was wonderfully funny, like when the Canadian Prime Minister Mark Carney sought reassurance from the Artemis II astronauts that they preferred maple syrup to Nutella over their pancakes, with the astronauts bursting into laughter a few seconds after the media in-room chuckles.

At other times, it was the quiet anticipation of unprecedented history like the 40-minute communications blackout when the Orion spacecraft traveled behind the moon, or the heart pounding nailbiters of the 6-minute blackouts during the TLI or re-entry to Earth. In an era that rewards instantaneity over pauses, the globe watched and waited together. Such communication lags will compound dramatically for more distant worlds we explore, yet will still tether us profoundly in real time to one another despite our attention- and time-deprived schedules.

The Artemis II livestream also brought home the challenges of human bodily functions far from home. An inordinate amount of media attention and communications airtime was devoted to the brand new model of NASA toilet which developed issues just hours after launch and later became unfunctional on day 3 of the mission. Panels of NASA and space studies experts were asked by journalists about whether the astronauts were able to do either one or both of "#1" or "#2", or why the toilet gave off burning smells, highlighting the very human realities of boldly going where no one has gone before.

We also saw the rocking of the Orion capsule framed by the darkness of space and the background of the moon or Earth. We watched as each astronaut took their turn with the mandatory daily exercise routine to prevent bone density loss, cardiovascular issues and other health declines in a microgravity environment (only one astronaut can work out at a time, owing to space restrictions and to prevent buildup of exhaled carbon dioxide in an enclosed environment).

The Artemis II mission was full of deeply personal experiences and observations shared by the astronauts, made even more powerful by their unscripted nature. Commander Reed Wiseman's impromptu words of gratitude to the thousands of engineers and staff involved with the successful TLI, and the spontaneous naming of craters on the far side of the moon including - as the astronauts wept and hugged - one for his deceased wife Carroll, connected us in real time to their, and therefore our, evolving scientific and human perspectives.

This gratitude was echoed in a recent interview at the Kennedy Space Center, in which Wiseman shared that he had just received a handwritten note at the airport written on a boarding pass, stating "Thank you for reminding us about joy and hope in the universe again", which he expanded on to thank all the hands that helped the Artemis II mission succeed.

There were also moments during the mission when they simply ran out of words, like when they saw shades of colors on far-side lunar craters on what appears from Earth as a gray barren world. They called for new language to describe what they were seeing.

NASA recently issued a call for filmmakers, documentarians, songwriters, and poets to contribute to mission storytelling, especially encouraging in the wake of the cancellation of the artist-focused dearmoon mission. Perhaps a Dictionary of the Moon and an Embassy of the Moon, as Dutch artist Marjolijn van Heemstra has proposed, will become possibilities in the future.

Towards the end of the 1997 movie "Contact," based on the 1985 book by Carl Sagan, astronaut and SETI scientist Dr. Ellie Arroway (played by Jodie Foster) is overcome by the experience of interstellar travel and the dazzling views it brings. She says in a choked voice "they should have sent a poet."

In the case of Artemis II, we sent four.

The Canon 18x50 IS binoculars are ideal for stargazing and are able to deliver clarity on night sky objects, thanks to their image stabilization. The 50mm objective lenses are the benchmark for stargazing binoculars and are able to deliver bright views of the night sky. They are currently 30% off their retail price.

You can get the Canon 18x50 IS all-weather binoculars on sale for $1195 from Amazon.

When it comes to stargazing, image-stabilized binoculars are a cut above the rest. Even at high magnifications, you get detailed views of night sky objects like star clusters and nebulas, instead of shaky worms of light. Our expert reviewer gave the Canon 18x50 IS binoculars four stars and called them 'stargazing ready' thanks to their high 18x magnification and image-stabilization.

• We've got you covered with reviews and rankings of the best telescopes, binoculars, star projectors, cameras, drones, Lego, streaming and more.

Stargazing with regular binoculars or image stabilized binoculars is the same difference as night and day. Especially at higher magnifications, image stabilization becomes a necessity when using the binoculars without a tripod and you can struggle to get a shake-free view without it.

The Canon 18x50 IS binoculars offer a powerful 18x magnification and 50mm objective lenses for great astronomy performance. You don't need to worry sacrificing low-light capability for image-stabilization. The star clusters, galaxies and nebulas are bright without becoming lines of squiggly light. They are brilliant for bird watching and general use, too, with the image stabilization adding to the quality of all views.

The optical technology stands out with ultra-low dispersion (UD) glass elements for virtually no chromatic aberration (color fringing) and doublet field flatteners for sharp stars from edge-to-edge. Optics expert, Jase Parnell-Brookes, gave them four stars in their full Canon 18x50 binoculars review for enabling a relaxing and impressive session of stargazing. They highlighted the strong grip for sturdiness in challenging conditions but even though they are advertised as all-weather, they are not fully waterproof. At 27% off asking price, this is a huge saving on a pair of binoculars we think are among the best for stargazing.

Key features: 18x magnification, 50mm objective lens diameter, 3.7-degree field of view, 15mm eye relief, 41.6 oz (1.2 kg).

Price history: The Canon 18x50 IS binoculars have a retail price of $1,648 but are often discounted from Amazon for $1,549. This deal from an Amazon seller brings the price down to $1,195, with the official Amazon listing on sale for $1,199.

Price comparison: Amazon: $1,195 | BHPhotoVideo: $1,449 | Adorama: $1,149

Reviews consensus: In our Canon 18x50 IS binoculars review, we praised their the premium features that made it perfect for stargazing: 18x magnification, 50mm objective lenses and superb image stabilization.

Space: ★★★★

✅ Buy it if: You want high powered views of the universe from handheld binoculars without the need for a tripod.

❌ Don't buy it if: If you don't need high magnification or image-stabilization, a lower magnification pair might be more suited to you, like the Nikon Action 7x50 binoculars.

Check out our other guides to the best telescopes, binoculars, cameras, star projectors, drones, lego and much more.

NASA's Curiosity rover has uncovered evidence of ancient sandstorms on the Red Planet.

What is it?

Scientists think ancient Mars was quite different than it is today. While we might know it now as a barred, reddish wasteland, billions of years ago it actually had an atmosphere. Scientists even think that it had flowing rivers and expansive lakes.

And with observations from the Curiosity rover, researchers are exploring ancient sandstorms they think blew across the Martian landscape.

In this image Curiosity snapped, you can see what experts think is the aftermath of an especially extreme sandstorm in a spot nicknamed "Jawbone Canyon." Winds from this storm were likely so extreme that they pushed sand into rippling waves that eventually hardened into rock.

And if you really look closely at this image, you can almost see how the rocks appear to have ripples on them.

While the image was captured in 2024, a new investigation of the observation and discovery of this sandstorm was described in a study published this year in the journal Geology.

Why is it incredible?

This observation by Curiosity is part of a long history of exploration on the Martian surface that actually began 50 years ago today.

On July 20, 1976, NASA's Viking 1 lander touched down on the Red Planet. Aside from the Soviet Mars 3 lander that lasted only a few seconds on the world before losing contact, Viking 1 was the first Mars lander to survive landing and successfully went on to study the planet.

Viking-1 took the first-ever images on the surface of Mars, studied the planet's soil and really sparked investigation of whether or not the world may have ever supported life. Thanks to the success of this mission 50 years ago, today we have rovers like Curiosity and Perseverance on Mars leading us at the cutting edge of exploration.

The costs of space launch have fallen 96% in the past six decades and have the potential to plummet by nearly as much by 2040, a new study finds.

However, such an improvement might get hampered by a number of challenges, such as the rise of space debris in orbit or a single company monopolizing commercial space launch, researchers added.

Although previous analyses of space launch suggested that costs had dropped over time, one major problem with these prior studies was that they "considered the cost of the rockets, but not how much they launched during their lifetimes," study co-author Francesco Nicoli, an associate professor of political economy at the Politecnico University of Turin in Italy, told Space.com. This meant this earlier work failed to accurately track the average costs of reaching space.

In the new study, the researchers developed the largest dataset of rocket launches to date, covering 4,405 launches from 1960 to 2025. This included more than 330 different rocket configurations devised by developers in the United States, Russia, China, India, Europe, Japan, Australia, Brazil, Israel, Iran, South Korea and Ukraine.

The investigators found that, in 2024 U.S. dollars, the average cost of sending 2.2 pounds (1 kilogram) to orbit dropped from $87,023 in 1960 to $3,868 in 2025 — a decrease of 96%.

All in all, the rate at which the space-launch industry learned to reduce costs was among the fastest recorded in any industry to date, the investigators noted. They calculated that each time the cumulative payload of the entire space-launch industry doubled, the average cost of sending 2.2 pounds (1 kg) to orbit decreased by 21.2%.

This learning rate exceeds that seen with solar panels, "a technology that is now frequently taken as the benchmark for cost reduction," study co-author Alessio Terzi, an assistant professor of public policy at the University of Cambridge in England, told Space.com.

The researchers suggested two major causes behind this drop in costs. "First, the end of the Cold War and the shift to so-called 'New Space,' meaning the use of space for commercial purpose, seems to have accelerated the rate of learning — in the Cold War era, countries launched with their national launchers no matter the cost," Terzi said. "Second, our data shows an acceleration in the learning rate of space since the launch of the Falcon 9 of SpaceX, and the advent of reusability at scale."

Assuming this trend holds, the investigators estimated the average cost of space launch would fall to $1,600 per 2.2 pounds (1 kg) by 2030 and $300 by 2040. "There is still significant scope for further cost reductions going forward," Terzi said.

Of course, past performance is no guarantee of future results. There are at least three factors that could slow or reverse this cost trajectory, the researchers said.

First, space junk poses a growing problem for the launch industry. Space debris is typically zipping at speeds of about 16,800 mph (27,000 km/h), and so can inflict massive damage on anything in orbit. The problem space junk poses gets worse when collisions spawn even more debris, eventually cluttering space with high-speed shrapnel, a scenario nicknamed the "Kessler syndrome" after NASA scientist Donald Kessler, who predicted it in 1978.

Second, at the global level, SpaceX is currently responsible for roughly 75% of the total payload sent to orbit. The investigators noted there are strong economic incentives for a would-be monopolist to charge higher prices to potential clients. This in turn would reduce the total payload sent to orbit, slowing the future evolution of average launch costs.

Finally, the current climate of increasing geopolitical tensions is likely to make governments around the world cautious when it comes to depending too heavily on a single U.S. company for space launch. This may bring back Cold War dynamics, as nations pursue independent access to orbit, even if this means using more expensive home-based rocket technology, the researchers said.

All in all, "there is a strong feeling, perhaps exemplified by the recent record-breaking mega-IPO of SpaceX, that space is at a structural break point — a moment where trends are accelerating," Terzi said. "Forecasting at moments of structural break is very hard in general, and therefore also in our case."

The scientists detailed their findings July 14 in the journal PNAS Nexus.

In looking back and commemorating the 50th anniversary of the Viking missions to Mars, one is struck by the bold and audacious undertaking.

Twin spacecraft missions — each consisting of a lander and an orbiter — made their way to Mars and into the history books. The Viking 1 lander planted its legs on the terrain of Chryse Planitia 50 years ago today, on July 20, 1976, while its Viking 2 counterpart touched down at Utopia Planitia on Sept. 3 of that year.

Among their duties, the dual landers scooped up the first soil samples of Mars and deposited those precious collectibles into onboard, specialized equipment. Viking scientists had designed that gear to help answer an intriguing question: Is there life on Mars?

One of Viking's instruments was a GCMS, a combination of a gas chromatograph (GC) and a mass spectrometer (MS). A positive GCMS detection could confirm the possibility that organics needed for the origin of life as we know it were present.

After interpreting all the data and information gleaned from ingested Martian soil, most scientists at the time concluded that Viking relayed a "no life on Mars" result.

But is it possible that the two robots actually radioed back a very clear comeback: "Can you repeat the question?"

Different techniques

Ben Clark was a member of the Viking science team, and the instrument he designed made the first-ever measurements of the chemical composition of Mars soil. He is now a senior research scientist at the Space Science Institute in Boulder, Colorado.

"There were three life-detection experiments, each using different techniques to probe whether they could stimulate biological activity in the soil by adding various selected nutrients," Clark told Space.com. "Two were generally negative in their findings, but a third experiment had an expected strong response when it added nutrient."

Indeed, astrobiologist/inventor Gilbert Levin remained convinced that his Viking microbial detection instrument, called the Labeled Release experiment, did find living microorganisms in the soil of Mars. He held tight to that view until he passed in July 2021 at the age of 97.

Skeptical scientists

Clark recalled that many members of the scientific community were skeptical when geochemists pointed out that certain minerals can cause a similar response.

"Furthermore, when a second amount of nutrient was added, there was no additional response," Clark said. "Did the organisms die between experiments?"

Because of these responses, and especially because no organic molecules could be detected, most biologists concluded there was no life in the dirt that Viking tested. "However, there is also the question of whether the best nutrients were used in the Viking tests," Clark noted.

Microbiologists who study the small organisms that live in Earth soil, Clark added, know that some species are extremely adept at using sulfate as an energy source, by combining it with organics or with hydrogen gas.

"Unfortunately, none of the Viking life-detection experiments added hydrogen gas to their chambers," Clark said.

"Ironically, the instrument which searched for organics in the soil, the GCMS, used hydrogen gas in its analytical technique," he added. "Thus, there was a tank full of hydrogen gas located just centimeters away from the life-detection experiment package, but no connection between it and the GCMS where it was located."

True positive detections?

Even today, there are some scientists who question whether some of the life-detection experimental results were in fact true positive detections, according to Clark.

"Other scientists believe that it was not enough to simply test the loose soil, but that life in fact may be just centimeters below the surface in areas where there is still ice in the ground," he said.

Clark said that no other planet in our solar system so closely matches the early history of our own planet Earth.

"Recent discoveries by the rovers now roaming Mars have revealed some detections of organic molecules, and even some so-called 'reduction spots,' which are interpreted by some geologists as evidence of activity of biological organisms," he said.

Misunderstood results

Steven Benner is an astrobiochemist and director of the Foundation for Applied Molecular Evolution in Alachua, Florida. He is author of the soon-to-be-issued "Meet the Neighbors: Life on Mars and How to Find It" (Penguin Press, 2026).

Benner has long argued that the results from Viking were misunderstood. He contends that the Red Planet remains an easily reached destination to discover a possible independent origin of life and draws upon the Viking records to spotlight how the scientific process has failed in this regard to date.

Tied to Viking's 50th anniversary, "I decided to write a grumpy 'take no prisoners' book that dispenses with politeness and focuses on the facts," Benner told Space.com.

Misbegotten consensus

Benner said that his new book highlights two tales.

"Viking more likely than not found autotrophic microbial life on Mars, roughly 1,000 cells per gram — about what you might expect based on Earth analogs," said Benner.

The other story, he said, is that communities will defend a misbegotten "consensus" long after that consensus ceases to be defensible. They should not be beholden to a half century of mistakes, he emphasized.

The GCMS misinterpretation was 100% of the grounds for dismissing considerable life-positive data, according to Benner. So, he said, "we should then have gone back to the status quo ante, as Gil Levin did. But since 'consensus' in science is powerful, and Levin was polite, the community marginalized him."

Viking preservation

Rachel Tillman is the founder and executive director of the nonprofit Viking Mars Missions Education and Preservation Project.

Her late father, James Tillman, worked on Viking 1 and 2 and was a professor in the Department of Atmospheric Sciences at the University of Washington.

"There are a variety of reasons it's important to preserve Viking data," Tillman told Space.com. Archiving how and why things were done on Viking from an engineering standpoint is vital, she said, as is safeguarding the science data accumulated during the Viking program.

"Science is dynamic. Instruments and missions are finite in what they collect, so every data is part of a growing body of knowledge coming in pieces of a much larger puzzle. We can't complete the puzzle without all of the data," said Tillman. "So every facet of Mars science is a tiny piece of the puzzle. For that reason, we need to keep all the pieces."

This is true of every engineering success and failure, she added.

"Our organization has records on both. Because of that, we can help industry reduce costs by making the archives available on failed tests as much as successful ones," Tillman said.

It takes many, many missions to get close to answers we theorize on, she pointed out. "And then there is inspiration. By preserving the past — the who, what and how — we inspire youth and the public to support endeavors and even join the workforce," she concluded.

Contaminate and confuse

"The entire Viking mission — orbiters and landers — are one of the most important sets of data about the planet Mars," said Barry DiGregorio, an honorary research fellow for the Buckingham Center for Astrobiology in the United Kingdom. He is author of "Mars: The Living Planet" (Frog Books/1997).

"Indeed, the Viking biology data have become more important today than they were during the Viking mission," said DiGregorio. "Because Viking carried the very first suite of extant biology instruments to Mars, extreme care was given to the extensive heat sterilization protocols for the Viking landers."

Those protocols ensured that the Vikings did not carry large numbers of terrestrial microorganisms that might contaminate and confuse the actual soil sample results in its three onboard life-detection instruments, DiGregorio said.

Warning flag

However, DiGregorio is also waving a warning flag.

The recent discovery of never-before-detected extremophile microbes in spacecraft assembly clean rooms has made it important to take planetary protection protocols to a new level, said DiGregorio.

"Unfortunately, the search for extant life on Mars has been made much more difficult by unwittingly sending Earth's hardiest extremophile microorganisms there for the last 30 years," he said.

If Mars life is indeed spotted, extra effort will be required "to make sure it isn't earthly extremophile microbes we are detecting," DiGregorio added.

Both Viking landers ceased operating more than four decades ago. But they could still aid the Mars life search today, according to DiGregorio. Perhaps, he said, "comparing any new data found with archived Viking Lander biology data will be crucial in determining their interpretation."

A bright "Saturn's ring" of satellites could circle the night sky if plans to launch a million data center spacecraft and tens of thousands of space mirrors come to pass. This ring, traversing the sky for hours after dusk and before dawn, would outshine every star and planet, and be visible from every spot on Earth.

Hugh Lewis, a professor of astronautics at the University of Birmingham in, the U.K., told Space.com that the only way to accommodate the high number of data center constellations that have been proposed is to stack them above another in orbit above the boundary between day and night, creating an artificial "Saturn's Ring" of satellites around the planet. That ring would show in the sky as a luminous band much brighter than any star or planet and even the full moon.

"If you were to look up at night, they would be all in one plane, really close together, going in the same direction," said Lewis. "The impact on the night sky would be absolutely catastrophic."

The next time you're away from urban light pollution, spend some time outdoors after dark and enjoy the view of the Milky Way and the constellations that have inspired awe since humankind woke to consciousness. Chances are those views are not here to stay forever.

Such a notion would have seemed like science fiction only a few years ago, but since the orbital data center frenzy kicked off last year, the once-fanciful prospect has become a distinct possibility.

A flurry of companies including SpaceX, Starcloud, Cowboy Space, Orbital and Blue Origin have applied to the U.S. Federal Communications Commission (FCC) for licenses to launch more than a million data center satellites combined. China has already jumped on that bandwagon, too, with plans to develop an orbital data center network within the next five years.

On top of those projects, California-based Reflect Orbital wants to launch 50,000 orbiting mirrors into space to reflect sunlight to solar power plants on Earth after dusk. Reflect Orbital received its license from the Federal Communications Commission (FCC) on Friday, July 10, to fly the first of these mirrors — a 60 by 60 feet (18 by 18 meter) demonstration satellite named Eärendil-1, which is expected to launch by the end of this year.

Lewis explained that all these data centers and mirrors would have to orbit Earth in the same orbital plane to have access to constant sunshine. This orbital plane follows the terminator line — the boundary between day and night — and takes the satellites over the planet's north and south poles.

"Orbital data centers and Reflect Orbital all tend to rely upon what these operators call 24 hours of sunlight in space," Lewis said. "To have that, you have to be in a particular orbit, which follows the dawn-dusk line. It's not like the Starlink megaconstellation, which is distributed around the Earth."

Samantha Lawler, an astronomer at University of Regina in the Canadian province of Saskatchewan, agrees with Lewis. Lawler and her colleagues used computer modelling to visualize the impact of several of the proposed data center fleets including SpaceX's Starmind, Blue Origin's Project Sunrise and the Stampede constellation proposed by Cowboy Space.

In those visualizations, satellites visible from the planet's surface not just outshine the visible stars, they also outnumber them. Lawler explained that as Earth turns under the terminator orbit, the Saturn's ring of satellites would move across the sky twice a day — in the early evening hours between 6 and 8 p.m. and just before dawn.

"[The ring] would pass overhead at the same time every night," Lawler said. "That means its effect would be worse during winter time than the summer time."

Lawler cautions that the visualizations are based on publicly available data and may not reflect the exact technical specifications of the satellites involved. The work has also not yet been peer-reviewed.

However, Lawler added that the scattered light from that ring would continue brightening the sky for up to two hours after it would sink below the horizon, just like the sun keeps illuminating the firmament after it sets.

"It would make our taxpayer-funded telescope time much less effective," Lawler said. "We could do a lot less science for the same cost, and many science cases, including the search for dangerous near Earth asteroids, would be seriously compromised."

There would be no escape from the view of the ring anywhere in the world.

The modelling shows that some of these constellations — Blue Origin's Project Sunrise in particular — would fly their satellites in an additional orbital inclination that would create the shape of X on top of the main "Saturn's ring."

"If you were close to the equator, you would virtually have this X shape of crawling satellites come up in the sky early in the morning and after sunset," said Lawler. Further up north, you would see this as two separate bands. One band would come up in the morning and the other would emerge as the sun sets."

The actual brightness of this "Saturn's ring" would depend on the exact number of the satellites in it. But researchers warn that as each Reflect Orbital's space mirror is bound to be at least as bright as Venus — the brightest object in the sky after the full moon — the luminosity of this band would be extreme.

An earlier study by the European Southern Observatory concluded that a constellation of 50,000 Reflect Orbital mirrors would increase the brightness of the night sky by up to 300 percent, making the world's most expensive telescopes effectively useless.

"Humanity has already fundamentally altered the cosmos to the point where Earth is now an artificial 'ringed planet' choked by satellites and space debris," astronomer and dark sky advocate John Barentine, told Space.com. "But projects like Reflect Orbital will turn those mostly now invisible rings into bright reflective tracks. We aren't talking about a just scattered field of bright, moving dots anymore.

"Rather, this is a permanent, artificial 'ring of Saturn' effect cutting right through the most critical twilight observing windows for global astronomy."

On paper, many of these projects seem to make sense. Data centers on Earth take up precious land. They require enormous amounts of water for cooling, strain power grids and generate greenhouse gas emissions. In space, cooling and access to electrical power would be free.

Reflect Orbital wants to deliver sunlight to Earth after dark to increase the yield of solar plants and agricultural farms, provide free, sustainable lighting to construction sites and illuminate disaster zones in search of missing persons. The company maintains that it works to minimize disruption to astronomy and intends to cooperate with the scientific community.

"Every stage of our development is guided by data — testing, measuring, listening and adapting," the company's spokesperson said in an email. "We are actively commissioning independent, third-party research on the impacts of our technology."

The astronomers who spoke to Space.com, however, unanimously claim that the Reflect Orbital constellation and astronomy cannot coexist. "If we have mirrors in orbit, astronomy is over," Lawler said .

The American Astronomical Society (AAS), issued a statement criticizing the FCC's decision to grant Reflect Orbital a license to fly its test satellite.

"Reflect Orbital's proposed satellite, which would reflect sunlight back to Earth at night, carries the potential for significant harm to our members and the broader community of those who depend on a dark night sky," the AAS wrote. "This harm could include damage to sensitive research telescope equipment, potential flash-blinding of pilots and drivers, and — as Reflect Orbital stated in its own FCC filings — potential permanent eye damage to anyone looking through a mid-sized telescope."

In the past, astronomers praised SpaceX for attempts to dim the Starlink satellites by using dark paint and special visors to reduce reflectiveness. But Lawler said that many of these attempts have been undone by SpaceX's gradual increase of the satellites' size. While first generation Starlinks were about 570 pounds (260 kilograms) in mass, the latest generation weigh more than 4,400 pounds (2,000 kilograms) each.

"They did a lot of work to make the satellites darker, but then they also made them bigger and put them on lower orbits, and that has made them much, much brighter," Lawler said. "You can see Starlink satellites everywhere even with the naked eye. They are very visible and they are all over the sky."

In its Order and Justification of Reflect Orbital's mission license, the FCC stated that "impacts on optical astronomy fall outside [FCC's] review and authorization."

"The Commission's rules do not address the protection of optical astronomy, and thus we decline to interpret commenters' concerns in connection with the Commission's mandate," the FCC wrote.

The astronomers, however, point out that no other regulatory body in the U.S. and outside has a say in awarding satellite licenses to US companies and reviewing applications with respect to impacts on the night sky and the wider environment.

"The FCC is the only agency that's regulating American satellite launches," said Lawler. "But if the FCC says that this is not their problem, then whose problem is it?"

The AAS in its statement called on the FCC to "consider all of the impacts of the satellite's use case."

"In the absence of another licensing agency that could take these considerations into account, we believe that it is critical for the FCC to consider all of the impacts of the satellite's use case," the AAS wrote.

Robert Massey, the executive director of the U.K. Royal Astronautical Society added: " This is setting a bad precedent and opening up to the full deployment of the constellation that could get to the 50,000 satellites in a few years. It's really disappointing that the FCC authorized this."

Where does James Cameron's "Aliens" rank among the other Alien movies? That depends on who you ask. Some might say it's the best, while others put it just behind the original (spoiler alert: it's the best). Regardless, there's no denying that this 1986 film shifted gears, moving the franchise from horror to horror-tinged sci-fi action and paving an alternate path for the future.

As Cameron stated in an interview with Lofficier, the plan always was "to do a film that was not as scary... it's scary, but it's not as scary, but more intense, and I like to use the word, exhilarating. Because I think you get exhilarated by the intensity of the kind of action that's in this film."

In terms of story progression, the sequel's shake-up makes complete sense. Sigourney Weaver's Ellen Ripley survived the Xenomorph in "Alien", but now she must conquer her fears and face the grim creature once again. This time, she has allies and firepower on her side, though most of those Colonial Marines turn out to be about as useful as French kissing a beehive.

"Aliens" exploded into a monster hit, both financially and critically, suggesting that Cameron has a Midas touch when it comes to sequels. Famous movie critic Roger Ebert called it "a superb example of filmmaking craft", and it's tough to argue that point. Yet what's amazing to ponder is how "Aliens" nearly fell apart several times before it actually happened.

Despite 1979's "Alien" turning a big profit on paper, Hollywood's accounting practices are more baffling than Palpatine's return in "Star Wars: The Rise of Skywalker".

Somehow, "Alien" was deemed a flop, and 20th Century Fox remained conflicted about a sequel – so much so that it almost sold the rights to the "Rambo" producers of all people (imagine the crossover potential, though, as John Rambo guns down a horde of Xenomorphs while Jerry Goldsmith's iconic score blares in the background).

After much oohing, aahing, and handwringing, the studio relented and selected Cameron to put together a treatment based on the impressive nature of his script for "The Terminator".

In 1983, Cameron only needed three days to put together a 45-page treatment, which can be read here. The nuts and bolts of what would become "Aliens" are mostly present in this document, but Fox turned its nose up at the filmmaker's proposal. The studio certainly wasn't escaping allegations that it looked for more reasons not to do the movie than to proceed.

What "Aliens" required was a champion from within – somebody to convince the studio execs that they were leaving money on the table by ignoring this franchise. This came with the hiring of producer Larry Gordon, who pushed for the sequel in the four walls of the boardroom.

After the success of "The Terminator", Cameron returned to the fray as writer-director, while his then-girlfriend-soon-to-be-wife Gail Anne Hurd boarded the film as a producer.

With the script submitted and Cameron cocked, locked, and ready to shoot in 1985, a new problem arose: budget. Cameron's camp argued that "Aliens" could be done for $15.5 million, but Fox's bean counters feared it would be closer to $35 million, and nobody considered the poor billionaires at stake.

Fox offered $12 million. "We walked out and said, 'Thanks, we'll do something else,'" Cameron told the Los Angeles Times.

Behind the scenes, Gordon managed to convince his bosses to fork out the extra money for the production. With that hurdle successfully navigated, Cameron was back in the driver's seat and ready to head off to LV-426.

Next though, Fox decided to suggest the unthinkable at the time: "Aliens" without Sigourney Weaver. It's a decision that reeks of a straight-to-video sequel, the kind of thing you'd expect to be fronted by a Kevin Sorbo type.

Cameron, on the other hand, was under the impression that Weaver had been contractually locked in for a sequel, but that wasn't the case at all. Now it was up to Cameron to convince Weaver to do the film. He met with Weaver, and the meeting seemed positive enough, but her agents wanted a big payday for her – and rightfully so. Fox refused, and so Cameron and Hurd quit… again; they weren't going to make the movie without Weaver.

Frustrated but trying to roll the dice on this flailing project one last time, Cameron pulled a sneaky trick, as he revealed to GQ years later. Weaver shared the same agency as Arnold Schwarzenegger, so Cameron phoned Schwarzenegger's agent and told him how he was about to start rewriting the "Aliens" script to remove Ripley entirely. The news travelled faster than a Xenomorph through a ventilation shaft.

"The deal was done in 12 hours after that," Cameron said. "So I never wrote a word of that hypothetical story that I said I was gonna do, that I had no intention of writing anyway. So anyway, it worked, and Sigourney got her million bucks, and everybody was happy."

As far as most movie productions go, "Aliens" was mostly smooth sailing when it began to shoot. Deadlines were met, it didn't go over budget, and the studio let them get on with it. The biggest challenge involved the final cut – with Fox wanting the picture to have a two-hour runtime to secure more theatrical screenings.

Cameron relented, taking out his scissors and cutting a few superfluous scenes, but the film still wasn't quite at the magic mark. Having cut everything that he could, Cameron explained that any further amendments would destroy the story and damage the integrity of the movie. This time, Fox didn't argue and stuck with the filmmaker.

History confirms the right call was made here. The franchise now follows the blueprint laid by Cameron's "Alien" more than Ridley Scott's "Jaws in space" foundation. While there's always a survival element in these movies, the action-centric approach is a critical part of the series' DNA. Sure, the protagonists remain scared, but they receive the opportunity to light up the Xenomorphs and show those ugly monsters who's the boss.

Looking back now, it's unbelievable to think that Fox almost tanked "Aliens" with its studio shenanigans. A classic emerged from the chaos of inflated egos, penny-pinching, and blood pressure-raising frustration.

It's proof that in Hollywood, no one can hear you scream (nor do they care), so it's up to you to find a way to survive.

Artificial intelligence could easily fall into the trap of identifying non-life as life on other worlds, claim two researchers from Michigan State University who have tested AI on simulated life in a computer program.

"We had previously seen that AI has a big Achilles heel when it is trying to classify things that are unlike the things in its training examples," Michigan's Christoph Adami told Space.com. "We call these 'out-of-distribution' samples and it is just incredibly easy to get AI to misclassify."

Adami is a computational biologist who uses computers to apply information theory to the study of evolution and biology. One of his leading tenets is that life can be defined by its ability to encode information and replicate it. To this end, he devised the Avida computer program in 1993. It runs digital organisms written as code that can replicate by copying themselves and competing for resources — in this case, CPU time — just like real life organisms. Although the use of digital life in evolutionary studies remains controversial, what it does provide Adami with is a huge dataset of simulated lifeforms that AI can be tested on.

Spending three months of computer analysis on a thousand parallel machines, Adami and his student Ankit Gupta asked AI to determine which programs in Avida had the properties of life, and which didn't. The life and non-life programs have very similar coding, so the difference is not obvious — and this might very well be the case on another planet where life could have differences in biology to Earth life.

Adami and Gupta started out with programs representing a random sequence of molecules and asked the AI to classify them. They then set about tweaking that sequence of molecules to try and fool the AI into thinking it was seeing life, one change at a time, each time checking whether there had been a change in how confident the AI was that it was life or non-life.

"Within about 15 changes or so we can get AI to be perfectly confident of a life classification when in fact not a single time when it was being 100% confident was it actually life," said Adami.

Furthermore, no matter the sequence they started with, the AI was constantly fooled.

Many in the scientific community stand by AI as an invaluable tool because it can process huge amounts of data and search for patterns in that data. Adami himself believes that AI has an important role to play, but as we see in everyday life, AI is prone to making things up and identifying patterns that don't exist.

This really comes down to what the AI has been trained on, said Adami. If you ask an AI about data it has been trained on, it usually provides a correct answer. For example, if you train AI to identify pictures of apples and then ask it to pick out the fruit from a dataset that also includes pictures of non-food items, it will answer correctly virtually all the time. However, if you replace the apple pictures with photos of bananas and ask it to identify the fruit, it will struggle and start to misidentify things.

That's because the bananas represent "out of distribution" data. The AI wasn't trained on bananas, which are a very different shape to apples, and therefore the AI doesn't know what to make of them.

Similarly, we don't know what alien microbes will look like, and they could be quite different to the terrestrial microbes that the AI has been trained on. In other words, the alien life would be out of distribution, and the AI would have no context for saying whether any particular collection of molecules is life or not.

"You need to know your training data, and if you know that your testing data is part of the same distribution as the training data, then you'll be fine," said Adami. "But you can't guarantee that with extraterrestrial life."

This could pose a problem for missions designed to look for life.

If a Mars rover goes to the red planet and cuts open a rock and directly sees something that looks like microbial life as we know it, then the answer will be clear-cut and can be tested using traditional methods. However, many attempts to detect life will probably not be so hands-on, relying on mass spectrometry data to identify molecules and processes related to life. This could range from attempts to detect life in the atmosphere of Venus, or in the ocean of Europa, or on exoplanets via the Habitable Worlds Observatory, which NASA aims to launch in the 2040s to directly image exoplanets in the habitable zone of stars.

"This means that if there were an AI on a mission looking at particular mass spectrometry samples, then there's a very great chance that while it has been trained on the ground on a number of biotic and abiotic samples, it could still return a positive verdict when it has absolutely nothing to do with life," says Adami.

The next step, said Adami, is to move out of the digital world and run the same test with real-world data.

Adami and Gupta will be presenting their findings in August at the 2026 Conference on Artificial Life, which is being held in Waterloo, Canada.

The biggest blockbusters of 2014 threw up a varied rogues' gallery of bad guys. In "Transformers: Age of Extinction", it was a reincarnated version of Optimus Prime's perma-nemesis, Megatron, while Captain America faced off against a reborn Hydra infiltrating the upper echelons of the US government in "The Winter Soldier". For Spider-Man, it was Electro, while Maleficent showed up in live-action to give Sleeping Beauty nightmares.

Christopher Nolan has never been one to go with the Hollywood crowd, however, and in his outer space opus "Interstellar", the antagonist was time itself — or, to be more specific, Einstein's theory of general relativity.

Nolan, whose Homeric epic "The Odyssey" makes landfall in theaters this week, has always been obsessed with time, and our perception of it. From "Memento"'s backwards narrative to "Tenet"'s time-flipping terrorists, the director has tended to steer clear of linear narratives. Even the three interweaving plotlines of his World War II drama, "Dunkirk", unfold at completely different speeds. In short, Nolan is not a filmmaker you should ever set your clock by.

But time has never been as cruel as it is in "Interstellar", where the fundamental constants of the universe combine to wreak havoc with human emotions. "Time is relative," explains Anne Hathaway's biologist/astronaut Amelia Brand. "It can stretch, and it can squeeze, but it can't run backwards. It just can't."

She's summed up "Interstellar" in a nutshell, so it's not hard to see why this was the story Nolan wanted to tell when he added his own entry to the canon of cerebral cinematic sci-fi.

At one point in "Interstellar"'s evolution, it seemed set to be a Steven Spielberg movie. Physicist Kip Thorne had originated the project with producer Lynda Obst, and the "Close Encounters of the Third Kind" director spent a year developing the movie with them. He even hired Nolan's younger brother, Jonah (whose credits include "The Dark Knight" and "Westworld"), to write a script.

Spielberg ultimately dropped out — "It just didn't stick with me, and I don't know why," he told Empire magazine — but Jonah knew the ideal replacement. "Jonah actually said, 'If there comes a point where you decide not to make this movie, I can tell you who's gonna grab it. He's already bugging me about it. And that's my brother Chris.' The second I decided not to make it, Chris jumped on board, probably the next day. 'Interstellar' was a much better movie in Chris Nolan's hands than it would have been in mine."

In the film's near future, humanity is literally running out of time. The Earth's ecosystem is breaking down, with dust storms killing crops across the United States and causing major health issues among the survivors. Nolan even uses talking head footage of real-life survivors of the Dust Bowl that ravaged the US Midwest in the 1930s (taken from Ken Burns' 2012 documentary "The Dust Bowl") to add to the urgency of the situation.

But the remains of NASA — now forced into hiding — have a plan. They've discovered a stable wormhole near Saturn, and it leads to another galaxy. Probes have found planets on the other side, and some of them might — just might — be capable of supporting life.

So when former pilot-turned-farmer Joseph Cooper (Matthew McConaughey) stumbles on NASA's clandestine base (for reasons that will later become clear), he's recruited for a mission checking in on the brave pioneers sent to investigate these strange new worlds. Unfortunately, this means leaving his kids behind.

And this is where relativity becomes one of the harshest antagonists in movie history. The Endurance crew's first destination, "Miller's Planet", orbits a black hole known as Gargantua. Its gravity is so intense that anything in its vicinity experiences extreme time dilation — to the extent that an hour on the planet's surface is equivalent to seven years for everyone else. "We need to think of time as a resource, just like oxygen and food," Brand says before they make landfall.

But in that old Hollywood tradition, not everything goes to plan on the surface, and by the time Cooper and Brand escape Gargantua's influence — minus their late crewmate Doyle (Wes Bentley) — decades have passed on Earth. In an extremely powerful sequence, we see Cooper catching up on the last 20-plus years of life back home via video messages from his son, Tom (the young version played by Timothée Chalamet, the older version by Casey Affleck).

In a matter of minutes, Cooper learns about the birth and death of a grandchild, as well as the passing of his father-in-law. At the end of the reel, his heartbroken daughter Murphy (young version: Mackenzie Foy; adult version: Jessica Chastain; elderly version: Ellen Burstyn) sends her first message since he abandoned her for outer space. The reason for breaking radio silence? She's now the same age he was when he left; her childhood vanished in the blink of an eye.

"Interstellar" makes a mockery of the myth that Nolan's films are cold and emotionless. Relativity shows no mercy for family bonds, and McConaughey, Chastain, and Hathaway all deliver towering performances as they deal with its consequences. This is a human story told across a multi-dimensional canvas.

Even beyond their lives being thrown out of sync by time dilation — at the end of the movie, a still-40-something Cooper comes face-to-face with a nonagenarian Murph on her deathbed — they're coming to terms with the fact that the whole mission was built on a lie.

NASA boss Dr Brand (Michael Caine) may have thought he was doing the right thing by pretending that his gravity equation could be solved and giving false hope that humanity might one day find a new home among the stars. But it doesn't make it any less of a kicker when he confesses his grand betrayal, admitting on his deathbed that "Plan B" — sending embryos into the cosmos to extend the human race — was "Plan A" all along. Of course, whether he's right or wrong, he's a second-tier 'bad guy' compared to relativity.

Nolan went to extraordinary lengths to give his film a sound scientific footing. He consulted extensively with Thorne in order to generate a scenario where relativistic effects would be so extreme that minutes on a planet's surface would equate to years back on Earth. "Kip, apart from being an incredible mind, is actually a very good explainer of difficult concepts, and he was very patient with all of us lesser beings," producer Emma Thomas told SFX magazine. The Oscar-winning VFX team at D-Neg, meanwhile, turned their work modelling the accretion disc around Gargantua into an actual scientific paper.

By the time the film enters its endgame, it's embracing tesseracts and five-dimensional superbeings, as Cooper uses gravity to communicate with Murph across time. In the process, he reveals that the "ghost" that helped him find NASA all those years ago was actually a future version of himself. Such diamond-hard sci-fi concepts are probably not, however, the reason that "Interstellar" has since — despite mixed reviews on release — become one of Nolan's most popular films a decade later.

"What I've found is that people who let the film wash over them get the most out of it," Nolan admitted in "The Nolan Variations" by Tom Shone, and the director may just have a point. While a cynic might have issues with the notion that love is a quantifiable force transcending the universe (anyone know the SI unit for that?), it's impossible to deny the genius of "Interstellar"'s use of high-level physics to explore the human condition.

It's unlikely any of us will find ourselves in the vicinity of a black hole, but all of us know what it means to want more time with the people we love.

"The Odyssey" is in theaters from Friday, July 17. "Interstellar" is available to stream on Hulu and Paramount+ in the US, and Sky Cinema and HBO Max in the UK.

Aug. 12, 2026, offers a rare double-header for skywatchers across northeastern North America: a partial solar eclipse during the afternoon followed, hours later, by the peak of the Perseid meteor shower beneath dark summer skies. The eclipse is part of a total solar eclipse happening in eastern Greenland, western Iceland and northern Spain.

"The neat thing about seeing a partial eclipse, especially one that is total somewhere else, is that you get to join in with the whole event that's going on," Tyler Nordgren, astronomer and eclipse artist at Space Art Travel Bureau, told Space.com. "It is a worldwide event, and you can get a sense of the three‑dimensional nature of the universe."

Together, the two events make a perfect excuse for an overnight astronomy road trip — whether that means heading into the mountains, camping beside a lake or escaping to a remote coastline. Pack a reclining camp chair, warm layers and plenty of bug spray, but before you do anything else, book a campsite because peak Perseids night can be one of the busiest camping nights of the year.

Do take precautions with the solar eclipse. "It will not be safe to look at with the naked eye, and it will not be safe to photograph with a camera that doesn't have a solar filter on it," Nordgren explained. "If you've got eclipse glasses left over from 2024, take them out, point them at a bright light bulb, and make sure there is no light coming through any pin pricks or scratches."

Eclipse timings and sightlines are from Xavier Jubier's Interactive Google Maps; cloud cover is from Time and Date, and Bortle and sky quality meter (SQM) data come from the Light Pollution map. Bortle and SQM ratings indicate darker skies and better stargazing conditions.

REMEMBER: During a partial solar eclipse, it is never safe to look directly at the sun without proper solar viewing protection, such as certified eclipse glasses or approved solar filters. Read our guide on how to observe the sun safely.

1. Gros Morne National Park, Newfoundland

Gros Morne National Park combines relatively dark skies with the deepest eclipse in eastern North America, with nearly half of the sun obscured at maximum. Coastal viewpoints, lakeshores and elevated trails offer wide southwest-facing horizons for the afternoon eclipse, while the park's low levels of artificial light make it well suited for Perseid viewing after midnight. The main drawback is Newfoundland's often variable weather and relatively high average cloud cover.

2. Mount Carleton Dark-Sky Preserve, New Brunswick

Mount Carleton Provincial Park has some of the darkest skies in Atlantic Canada, with Bortle 2 conditions across much of the preserve. Open areas around Mount Carleton and nearby lakes provide unobstructed southwest views for the eclipse, while the remote setting is perfect for Perseid observing later that night. Campgrounds inside the park make it practical for an overnight trip.

3. Fundy Dark-Sky Preserve, New Brunswick

Fundy National Park offers reasonably dark skies and accessible observing locations along the Bay of Fundy coast. Open areas around Wolfe Lake and Chignecto Campground provide good visibility toward the southwest during the eclipse, while the surrounding dark-sky corridor supports decent Perseid observing conditions after dark. Coastal "Fundy fog" and changing maritime weather can occasionally affect visibility.

4. Kejimkujik National Park, Nova Scotia

Kejimkujik National Park remains one of the darkest accessible observing sites in Atlantic Canada, with low light pollution and broad lake horizons that are well-suited to meteor observing. The partial eclipse here approaches 30%, and the park's lakeside campgrounds provide convenient overnight access for Perseid watching later that evening. Compared with many coastal locations in the region, Kejimkujik also has somewhat lower average cloud cover.

5. Acadia National Park, Maine

Acadia National Park combines relatively accessible dark skies with open coastal horizons facing the eclipse. Elevated viewpoints around Cadillac Mountain and the Schoodic Peninsula offer clear sightlines toward the southwestern sky, while overnight observers can expect reasonably dark conditions for Perseid viewing by northeastern U.S. standards. Summer crowds and vehicle access restrictions around Cadillac Summit mean you should make a plan well in advance.

6. Mont Mégantic Dark Sky Reserve, Quebec

Mont-Mégantic is one of the best-established astronomy sites in eastern North America, with protected dark skies and extensive observing infrastructure around the observatory and national park. Although the eclipse magnitude is moderate, the reserve's dark nighttime conditions and elevated observing areas make it a strong location for Perseid observing after dark. Cloud statistics are less favorable than farther south in New England.

7. Adirondack Mountains, New York

The Adirondacks offer some of the darkest skies in the northeastern U.S., particularly around remote lakes and higher-elevation observing sites. While the partial eclipse will be modest, the region's low artificial light levels and broad rural horizons make it a strong overnight option for the Perseids. Public campgrounds and astronomy events at local observatories may fill quickly around peak Perseid night. Check the Adirondack Sky Center & Observatory for events.

8. Catskill Mountains, New York

The Catskills provide relatively accessible dark skies within a few hours of major northeastern cities, making them a practical option for short-notice observing trips. The partial eclipse will be small, but reservoirs, ridgelines and open viewpoints offer decent southwest sightlines during the afternoon event. Overnight conditions are darker than much of the surrounding northeast region, particularly away from populated valleys.

9. Cherry Springs Dark Sky Park, Pennsylvania

Cherry Springs State Park is one of the best-known observing locations in the eastern US, with very dark skies and unusually open horizons in all directions. Although the eclipse itself will be very shallow, the park is among the best suited for the Perseids later that night, when low light pollution and established observing fields provide excellent meteor-viewing conditions. Expect heavy attendance around the shower peak.

10. Assateague Island National Seashore, Maryland

Assateague Island offers unobstructed coastal horizons and relatively low light pollution for the mid-Atlantic region. The partial eclipse here will be a technical affair, but the island's open beaches provide excellent naked-eye conditions for Perseid observing after dark, especially looking away from nearby coastal development. However, humidity, sea haze and mosquitoes can be significant factors during August observing sessions.

Thanks to the James Webb Space Telescope (JWST), astronomers have been given a glimpse of the mechanisms that supermassive black holes use to feed themselves. The observations could help scientists discover how supermassive black holes with masses millions, often even billions, of times that of the sun grew so fast so soon after the Big Bang.

While all large galaxies have supermassive black holes at their hearts, some are slumbering giants, consuming little surrounding gas and dust, while others are ravenously feeding and acting as the engines of bright central galactic regions called active galactic nuclei (AGN). These feeding black holes also blast matter from their poles in jets that can drive gas and dust — the raw material needed for star formation — out of their host galaxies, thus cutting off star birth and effectively "killing" these galaxies.

Plus, the powerful cosmic titans get really puzzling when astronomers using the JWST spot them before the universe was even 1 billion years old. That's because the mechanisms by which black holes devour matter to grow and then merge to create even more massive black holes should take at least 1 billion years to achieve supermassive status. This is even more confusing because theories also say the most ravenously feeding black holes (and thus the fastest growing) should also push the matter they use for this growth away, in effect putting themselves on a diet. So, with all this in mind, how did supermassive black holes grow so rapidly in the early universe?

One explanation suggests supermassive black holes push away gas, starving themselves as predicted, but also that this matter eventually cools and falls back to the black hole. That would allow for another period of feeding and thus growth.

This explanation further suggests that as this gas cools down, it forms "streamers," or filaments, of gas just a few hundred light-years wide but which stretch thousands of light-years long. These would fall back to the center of the galaxy and form a swirling disk around its incumbent black hole, once again feeding it and triggering a new period of growth. This would then restart the jets from the black hole, which would again cut off the cosmic titan's food supply, allowing the whole process to begin once more.

The process would in essence be a self-regulating cycle of feasting followed by fasting. However, the connection between these filaments and supermassive black holes has been elusive, meaning this mechanism has resisted confirmation.

"What JWST is revealing is that black holes may be the ultimate cosmic recyclers," team leader Julie Hlavacek-Larrondo of the Université de Montréal said in a statement. "They release enormous amounts of energy that heat their surroundings, yet that same gas can later cool into thin filaments that fall back inward and feed the black hole again. We are finally seeing this self-sustaining cycle in action."

A dieting supermassive black hole

To solve the mystery of feasting black holes, the JWST turned its attention to a relatively close AGN situated at the heart of the central galaxy of the Centaurus Cluster, NGC 4696, located just 145 million light-years from Earth.

The Hubble Space Telescope previously studied this galaxy, uncovering a strange, hook-shaped swirl of gas near the central supermassive black hole of NGC 4696.

The JWST followed up this discovery by producing a detailed map of gas flowing at the heart of the galaxy. This revealed the hook-shaped feature is around 800 light-years wide and is composed of gas moving at incredible speeds of around 1.3 million miles per hour (600 kilometers per second).

More excitingly, the swirl of gas appears to be connected to a vast filament of material falling in toward the central supermassive black hole.

The team tested the JWST observations against a computer simulation, finding gas in the infalling filament scenario would indeed take a shape similar to that seen in NGC 4696.

"JWST is now showing us the final link of this closed loop," team member Helen Russell of the School of Physics and Astronomy at the University of Nottingham in the U.K. said in the statement. "The vast filamentary network of gas flows ultimately funnels gas down to a disk that fuels the black hole."

The team's research was published on Wednesday (July 16) in the Astrophysical Journal Letters.

Japan's Hayabusa2 spacecraft returned spectacular images of a near-Earth asteroid following a super-close flyby on July 5, but heated debate was needed before teams signed off on the daring attempt.

When images of the asteroid Torifune arrived on the morning of July 6 Japan time, Makoto Yoshikawa and his team at the Japan Aerospace Exploration Agency (JAXA) got two surprises at once. Torifune turned out to be a contact binary, in which two chunks of rock have come together under gravity, and the returned images were also larger than hoped.

"We did not imagine such a contact binary," Yoshikawa, former mission manager of Hayabusa2, told scientists gathered at the Asteroids, Comets and Meteors conference in Poznan, Poland, on July 10. "Originally, we didn't think we could have such a very big image. Maybe we will take a very small one, but the image was much larger than we expected."

The double surprise was the payoff of months of debate between science and engineering teams, and a last-minute proposal that alarmed some of the scientists it was meant to serve. In the end, the flyby was so close as to be at the very edge of what the aging spacecraft was designed to conduct.

Hayabusa2 launched in December 2014 and rendezvoused with the asteroid Ryugu four years later. The spacecraft collected samples and delivered them to Earth in 2020, completing its primary objectives. JAXA then made plans for an asteroid flyby and a rendezvous with the tiny asteroid 1998 KY26 in 2031.

Usually for flybys, the closest distance is 100 kilometers (62 miles), Yoshikawa said, but in Hayabusa2's case this would not be close enough to gather good images. Hayabusa2 was designed for rendezvous and proximity operations, including hovering, correcting and landing — not for a high-speed pass at 5.3 kilometers per second (3.3 miles per second). Its cameras were also not designed for high-speed slewing.

According to Yoshikawa, science team members pushed back. At a distance of 100 kilometers, Hayabusa2's cameras would barely resolve the asteroid's global shape. Engineering responded with a proposal of 10 kilometers (6.2 miles). Science said that was acceptable, but the team kept pushing. Eventually, engineers confirmed they could get to within 1 kilometer (0.6 miles) of the asteroid's center. "Science people were very happy, because they could have a nice photo," Yoshikawa said.

Then, just one month before the flyby, extended mission team leader Yuya Mimasu proposed going even closer. "Yuya Mimasu said the closest distance should be 800 meters," Yoshikawa recounted. "Some science people said 'No, it's too dangerous,' and a very heated discussion started."

One major issue was the unknown size and dimensions of Torifune and the safety of the spacecraft. The team had assumed a worst-case asteroid size of 1,400 meters by 400 meters (4,600 by 1,300 feet) based on ground-based observations. A pass 800 meters (2,625 feet) from the center of the target would sit just outside that exclusion zone. The spacecraft's optics had also been affected by dust from sampling Ryugu. The final navigation analysis put the targeting error ellipse at around 200 meters (656 feet). "The distance fixed is 800 meters," Yoshikawa said, "but this is quite a big challenge for us."

Hayabusa2 detected Torifune on June 19. The spacecraft used ground-based guidance up to three hours before the flyby, before switching to onboard guidance. "This is quite new," Yoshikawa said. "We developed software for this, and we sent it to the spacecraft."

The result was the stunning, up-close imagery of the dual-lobed Torifune, captured by the probe's Optical Navigation Camera Telescope (ONC-T). But all four of Hayabusa2's science instruments returned data. The Thermal Infrared Imager (TIR) captured nine seconds of thermal imaging between 09:29:50 and 09:29:59 GMT on July 5, just a second before closest approach, independently confirming the contact binary structure in heat emission.

The Near Infrared Spectrometer (NIRS3) and laser altimeter (LIDAR) also got data, with the latter delivering what Yoshikawa described as possibly the first successful LIDAR ranging measurement during an asteroid flyby. But while the most urgent 25 MB of data was downlinked, teams will need to wait months for the rest of the 300 MB of total science data. Hayabusa2's ion engine system restarted on July 9 to begin the cruise toward two Earth flybys in 2027 and 2028 and will fire for around four months. Only after this can the rest of the data be sent to Earth.

Yoshikawa explained that the Torifune flyby was more than just a bonus milestone and photo and science op. The successful super-close flyby means that "JAXA has acquired the technology to collide spacecraft with a small celestial body," he said in his closing remarks at ACM, drawing a parallel to NASA's DART mission. "This flyby mission can be said to serve as a demonstration of the fast reconnaissance concept in planetary defense," verifying the ability to characterize an unknown asteroid rapidly — a capability that could provide crucial information ahead of an impactor mission.

This is not the end for Hayabusa2. The ultimate destination for the spacecraft's extended mission is the tiny asteroid 1998 KY26, a roughly 36-foot-wide (11 m), rapidly rotating rock with which it is scheduled to rendezvous in 2031.

Japan has succeeded in the first-ever flight test of its RV-X experimental reusable rocket prototype.

The launch — or hop, considering its duration and distance — took place at the Japan Aerospace Exploration Agency's (JAXA) Noshiro test facility on July 11 and lasted about 40 seconds. The 24-foot-tall (7.3 meters) test vehicle, powered by a single engine, rose just over 33 feet (10 m) in the air and traveled a horizontal distance of approximately 50 feet (15 m) across the site's concrete pad before touching down softly on the side opposite its liftoff point.

The short test flight went exactly as planned and puts JAXA and its partners one step closer to the development of a technological spaceflight achievement only ever accomplished by a small handful of orbital rockets — SpaceX's Falcon 9, Falcon Heavy and Starship, Blue Origin's New Glenn and, most recently, China's Long March 10B.

JAXA's RV-X is being developed and operated in conjunction with Japan's Mitsubishi Heavy Industries and is a precursor vehicle to a single-stage reusable flight experiment project called CALLISTO. CALLISTO is a joint venture involving JAXA, France's space agency CNES and the German Aerospace Center (DLR) to design and build a single-stage rocket capable of vertical launch, landing, refurbishment and reuse. That vehicle will itself be a pathfinder rocket as JAXA seeks its own entry into the cost-saving playing field of reusable launch services.

Japan's most advanced rocket in operation, the H3, was introduced in 2023 but wasn't designed for reusability. The H3 is more efficient and cost-effective than its H-2A predecessor, which was retired last year. But two of the new rocket's eight launches have not been fully successful, and it falls short in its cost-effectiveness compared to more advanced reusable rocket stages. So JAXA is hard at work on the H3's future replacement.

"Reusable rockets require consideration of operational feasibility," JAXA's website says. "By repeatedly verifying maintenance, operation, vehicle movement and launch pad setup using an actual experimental vehicle in preparation for flight tests, we were able to establish operational procedures that will contribute to the repeated operation of future rockets."

The test, and the RV-X vehicle itself, slightly resemble a similar flight article from SpaceX's early Starship development days. The "Starhopper" Starship prototype was compared to a water tower during its first "hopper" test in 2019. The first time the stumpy, three-legged, steel Starhopper jumped off the ground at SpaceX's Starbase facility in South Texas, it flew about 65 feet (20 m) straight up and back down.

Starhopper's success paved the way for higher jumps for longer durations as SpaceX honed Starship's early design, and the same is planned for RV-X. Now that JAXA's test rocket has completed its first 33-foot (10 m) hop, Japan's space agency is looking higher, too. RV-X's next launch is expected to fly as high as 330 feet (100 m), with another lateral crossover and hover included in its flight before landing.

On Episode 219 of This Week In Space, Rod Pyle and Tariq Malik discuss the space headlines for the past few weeks.

It's been busy, and some exciting things are happening! A couple of companies are moving into the space solar power arena — something we've long advocated — and that's welcome progress. Starship is set to fly Starship test number 13, and a lot is riding on this — the system is overdue for some proof of concept to keep up with NASA's HLS contract.

An exoplanet spotted a decade ago has shown signs of a potentially habitable atmosphere; there are landslides — big ones — on Pluto, and evidence of "space candy" sugars in an interstellar cloud are in the news. Finally, SpaceX is doubling down on their big defense contracts with a well-funded US Space Force. Join us for all the latest!

Download or subscribe to this show at: https://twit.tv/shows/this-week-in-space.

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Space news of the week

• SpaceX's Starship Flight 13 test launch aborts at last second
• Meteorite that crashed through New Jersey house could hold the clues to life's origins
• Astronomers discover 1st atmosphere around a rocky Earth-like planet in the habitable zone
• How NASA’s Artemis III Lander Test Will Pave Way for Moon Landings
• NASA Taps SpaceX’s Starlink to Deliver Artemis III Imagery from Orion
• Blue Origin continues work on lunar landers during recovery from New Glenn explosion
• SpaceX launches 21 'data transport' satellites for US military
• The FCC just gave Reflect Orbital permission to launch its 1st space mirror to orbit. Tens of thousands more could follow
• A “disaster waiting to happen”? Industry officials worry about Crew Dragon availability.
• Spacecraft Commissioning On Track for Mission to Boost NASA’s Swift
• Raspberry sugar spotted in interstellar space, a sweet discovery that could reveal clues about life's origins
• Defense Innovation Unit - Space Power Beaming
• Nature study identifies a new way to spot nuclear weapons in orbit

Model Falcon 9!

Finally, did you know you can launch your own SpaceX rocket? Model rocket maker Estes' stunning scale model of a Falcon 9 rocket that you can pick up now. The launchable model is a detailed recreation of the Falcon 9 and retails for $149.99. You can save 10% by using the code IN-COLLECTSPACE at checkout, courtesy of our partners collectSPACE.com.

About This Week In Space

This Week in Space covers the new space age. Every Friday we take a deep dive into a fascinating topic. What's happening with the new race to the moon and other planets? When will SpaceX really send people to Mars?

Join Rod Pyle and Tariq Malik from Space.com as they tackle those questions and more each week on Friday afternoons. You can subscribe today on your favorite podcatcher.

It's almost inconceivable that 40 years have passed since what's been called the greatest sci-fi action film of all time (and not just by us) assaulted theaters with the juiced-up sequel to Ridley Scott's 1979 classic, "Alien."

Director James Cameron's propulsive vision for a gung-ho military-style movie would call upon Stan Winston Studio's elite creature effects crew from 1984's "The Terminator" — a team that would later work on "Predator," "Terminator 2: Judgment Day," "Jurassic Park," and "Predator 2."

Cameron's "Aliens" greatly expands upon the xenomorph life cycle with the inclusion of a matriarchal beast that his screenplay described as "a massive silhouette in the mist, the ALIEN QUEEN glowers over her eggs like a great, glistening black insect-Buddha. Her fanged head is an unimaginable horror. Her six limbs, the four arms and two powerful legs, are folded grotesquely over her distended abdomen."

The brilliant filmmaker and Winston's energetic gang would craft and operate this 14-foot-tall articulated hydraulic puppet fabricated from fiberglass, foam rubber, and plastic. It contained two stunt performers in the torso and puppeteers on the ground manipulating legs and limbs.

Production was led by Stan Winston, Shane Mahan, Alec Gillis, John Rosengrant, Tom Woodruff Jr., and Lindsay MacGowan, the core wizards who’d later found the acclaimed Legacy Effects firm with J. Alan Scott following Stan Winston’s unfortunate death in 2008. Gillis and Woodruff would eventually split off to form Amalgamated Dynamics in 1988.

We caught up with Mahan and MacGowan to have them offer memories of working on "Aliens" at Pinewood Studios and specifically constructing this magnificent drooling, hissing monster that's spawned countless nightmares since the blockbuster landed on July 18, 1986.

"It was 1983 when I started at Stan's on the first 'Terminator,'” Mahan tells Space. "I’d worked with Jim on a Roger Corman movie that Makeup Effects Lab was doing, 'Battle Beyond the Stars.' [...] During 'Terminator,' Jim had drawings of Sigourney and the Power Loader he'd brought into the shop. I'd see them out of the corner of my eye and knew exactly what it was supposed to be. It was clearly an alien of that world with Sigourney Weaver.

"I was intrigued by it all because four years before, when 'Alien' had come out, it was so amazing cinematically. The lifecycle of the creature, and the organic nature of it. I had no idea that seven years later we'd be in England doing a sequel."

Mahan and posse began working on the Queen's preliminary designs in Southern California at Stan Winston's shop, where they conducted the infamous 'garbage bag test' out in the back parking lot, so named due to the flailing puppet being wrapped in black plastic trash bags.

"It was a proof of concept of how that was going to work," he explains. "Moving to Windsor, England, and setting up shop at Pinewood Studios was extraordinarily exciting. We then started making the full-size process of making the Queen and all the other effects, and we met the English crew, and Lindsay was one of them."

MacGowan fondly remembers his experience on the ambitious project and being recruited to join Stan Winston and the rest of the guys.

"They were legends at that point for us. We were also young and goofy, and it's amazing they actually let us do what we did when we were that young," MacGowan notes. "I was at college at the time, and I’d skip off college and make my way to Pinewood. It was like here’s the rock ‘n' roll Americans, and then we have our more reserved English team that got influenced by the American team. It was a lot of fun and some of my favorite memories of starting in the business.

"I remember it being incredibly cold at Pinewood at the time. There was no insulation in the warehouse, and we had these giant propane jet heaters, and they kept going out. We’d be nice and warm, then suddenly the flame would be out. It was a great time to get to know Shane, John, Alec, and Tom. I look at them as my American brothers."

Having everything under one roof, being created pre-shooting, was a great asset as it allowed Cameron to constantly oversee the process and monitor the progress being made.

"We were life-casting all the actors, various teams were doing the xenomorph warriors and the eggs and the facehuggers," Mahan adds. "It was a pretty big build list, and we had four or five months to get everything done. John Richardson was a great special effects man from the Bond films, and we all thought that was cool to work with guys that had done James Bond movies.

"That was my first time in England, so the setting was very new and exciting. Of course, we blew off a lot of steam occasionally, but we were very serious about just getting it all done. We knew we had a lot to live up to because of the first film. Very few people, if any, had come back from working on that first film. You don’t know how it's going to turn out. We all thought the 'Aliens' script was great. Jim had a lot of turmoil there and didn’t have a good time on his own for various reasons, but we weren't really privy to that."

Before hopping across the pond to the UK, Mahan and his ace crew did molds and castings using a quarter-scale maquette of the Alien Queen sculpted at Stan Winston's shop for their design master.

"Back then, everything had to be done by measurements, by plotting out, and by eye. Today, it's so simple to have a computer generate and mill out a perfectly formed section. You had to use a really focused artistic eye to get exactly where we were supposed to be.

"We also had to make action suits, and there were a lot of them. I think there were 13 or 14, and then there were like eight eight-foot-tall puppets that were more spindly and long that were going to be used on wires and get hit and blow up and get shot. Then there was one articulated half-animatronic that would play in various scenes. You have to imagine an era that was pre-CGI. There was no reliance on rod removal or performer puppeteer removal. You had to hide everything and everybody in the frame. So in the dropship fight, it’s an enormous amount of people making the Queen operate, and you don’t see them.

"That all comes down to Jim Cameron and his magnificent eye for framing this action scene without seeing the crane or any of the support devices. Directors today, most of them don't even have any idea how to do that. And that was the magic of Jim Cameron and still is. He had the designing thought of shot composition and action that played off the best attributes of that hydraulic/actor-driven Queen. Because there were two guys inside and nine of us on her tail, her head, the cable, her hands, the feet. We were everywhere."

MacGowan took his role very seriously to get the fit and finishing perfect for this elegant egg-laying beast that would end up being the seething, android-ripping superstar of the popular 1986 sequel. -

"It was really just to honor what Giger had done in the past, but also to give Jim what he was looking for in his vision for the Queen," he recalls. "The Queen is really Jim's design and entire look. Our focus was making sure that we got what Jim wanted, but still make sure that fans of the original movie, which was all of us, could really appreciate."

As a mentor to his dedicated young crew of VFX creators, Winston schooled them in the subtle art of injecting personality and emotion into their creature performances.

"It's something they always reinforced, but if you’re a student of horror and science fiction films, you know all the great creatures and monsters have got some sympathetic or some interesting personality," adds Mahan. "Even the xenomorph in the first film, the personality is that it does not care. It's just going to kill you. But that’s still a personality trait.

"We were always taught by Stan that these are not effects; these are characters that we’re making; these are actors in the film. It just happens to be a creature from space, or a robot from the future, or a dinosaur. Whatever it is, it has to be believed, and we’ve always carried that philosophy through."

As to the mystery of exactly where the original Alien Queen screen-used puppet ended up, Mahan has a few clues, but sadly admits that most of it has unfortunately been lost to time.

"Jim has one in his museum, and I think collector Bob Burns did have a head," Mahan shares. "The rest of it might be that it's fallen into disrepair. I know when we left, a lot of it was put into containers at Pinewood, and it sat and rotted for years. We always wanted to get that back, but I’ve not seen a real Queen in a while.

While the classic design hasn't changed much over the years, Mahan notes that the materials used to make creatures like the Alien Queen have.

"The head was fiberglass and had other foam rubber parts. The materials back then were not very sophisticated," explains Mahan. "The materials we have today, like what we did on 'Alien: Romulus', are like from outer space. They're translucent silicones, and they stretch well, and there’s lightweight plastic 3D-grown parts."

"Back then, the only thing we had was clear urethane that I got the cowl of her head to kind of move around. The original idea was that the skin on her face was supposed to be translucent. It ended up being foam rubber painted to look translucent. A lot of those materials have just fallen apart. On screen, it's pretty impressive.

"When we did 'Alien: Romulus,' Lindsay and I had not done an 'Alien' film since 'Aliens.' When that opportunity came up to revisit that world, the sensory memories came flooding back. It's one of those movies where I think I remember every day that I was on set for that film.”

"Aliens" is available to stream on Disney+ in the UK, and to rent and buy on various platforms in the US.

The Perseids may be the summer meteor shower everyone marks on the calendar, but they are not the only reason to look up this season.

From mid-July through late August, Earth plows through several other streams of comet and asteroid debris, triggering a series of lesser-known meteor showers across Northern Hemisphere skies.

Most will not deliver the dazzling hourly rates of the Perseids, and moonlight will spoil some peak nights in 2026. But for patient skywatchers under dark skies, these lesser-known showers can still serve up bright fireballs, faint streaks and a preview of the main event to come.

The duration in days of a shower we provide here is somewhat arbitrary, since the beginning and ending are gradual and indefinite. While the hourly rates from these other meteor streams provide but a fraction of the numbers produced by the Perseids, combined, overall, they provide a wide variety of meteors of differing colors, speeds and trajectories.

Capricornids

First to appear are the Capricornids, starting around July 10, with their maximum on July 25 and end on Aug. 15. Under the best conditions only a few bright meteors per hour come from this stream, so you'll hardly know it is in progress unless you plot meteor trails on a star map and trace them back to their common intersection point; most of the meteors you'll see will be sporadics or members of another shower.

The radiant reaches its highest point at about 30 degrees high in the south, about 2:00 a.m. local daylight time. The waxing gibbous moon will have set at around 1:40 a.m. on the night of the peak, leaving the rest of the night dark for prospective meteor watchers.

Delta Aquarids

Next come the Delta Aquarids, July's most prolific shower, with maximum on July 29, and as many as two or three dozen meteors per hour under ideal conditions. The shower lasts from July 12 to Aug. 23. It has a double radiant, indicating that we are seeing two distinct streams of celestial debris burning up in the Earth's atmosphere.

The meteors are mostly faint; a few bright, 5-10% leave persistent trains; they move at medium-slow speeds because they are coming in sideways across Earth's orbit. On peak night this year, the double radiant will be highest — roughly 40 degrees above the southern horizon — at 3:30 a.m. Unfortunately, in 2026, peak activity will coincide with full moon, so most of these streaks will likely be squelched by bright moonlight.

Piscis Australids

Another weak shower is the Piscis Australids, on July 30, with normal limits July 10 to Aug. 10. This is a lesser stream; only about eight members per hour are seen under best conditions to observers in the Southern Hemisphere, where the radiant — near the bright star Fomalhaut — climbs high in the sky.

As is the case with the Delta Aquarids, the moon, only one day past full, unfortunately, wrecks any chances of getting any decent views this year.

Alpha Capricornids

The final shower peaking in July is the Alpha Capricornids, which begin about July 7, peak on July 31, and end on Aug. 15. The radiant reaches its highest point, about 30 degrees high in the south at about 1:00 a.m. local daylight time. Though sparse (5 per hour) in number, the Alpha Capricornids are photogenic, frequently producing bright yellow fireballs that can be quite spectacular. Sadly, the bright moon, 93% illuminated, is in eastern Capricornus and will seriously impact the peak of this year's display.

Iota Aquarids

The last minor shower before the Perseids is the Iota Aquarids, a two-radiant shower having detectable members from July 15 to Aug. 25. At peak activity on Aug. 6, only about six members per hour are seen under good conditions; the radiants are at their highest point, about 40 degrees in the south at 2:30 a.m. A last quarter moon will be about one-third up in the eastern sky at that hour, which will interfere to an extent with viewing these meteors.

Perseids

The Perseids are predicted to reach their peak in 2026 on the morning of Aug. 13. Meteors whose paths extended backward intersect at a spot near the Perseid-Cassiopeia border not far from the famous Double Cluster in Perseus.

It rises at dusk and is highest in the sky — nearly overhead — at 5:40 a.m. When maximum occurs in a dark sky, as will be the case this year, this rich stream offers a crescendo in hourly rates averaging more than 50 members per hour, though double this rate has been seen on occasion. Many flaring meteors with trains are seen. This shower normally extends from July 17 through Aug. 24.

Kappa Cygnids

The last summer shower is the Kappa Cygnids. The limits of this shower run from Aug. 3 to Aug. 25, with the peak on Aug. 17. Though the maximum rate is only about four per hour, the stream does provide slow-moving flaring fireballs, and a careful observer may be nicely rewarded for the time spent.

The radiant is just north of the star Kappa Cygni and is nearly overhead — some 80 degrees high — at around 10:00 p.m. local time. At about that same time, a waxing crescent moon is low in the southwest and is about to set and will offer little viewing interference.

Where to look

The radiant is the place in the sky where the paths of shower members, if extended backward, would intersect when plotted on a star chart. Many people are misled into thinking that this is the best place to look for these meteors, but only stationary meteors — ones coming nearly straight at you — can be seen here.

The greatest numbers will be seen perhaps 30 degrees away from the radiant, in the general direction of the zenith. Remember that your clenched fist held at arm's length is roughly equal to 10 degrees.

In addition to shower meteors, there are always sporadic ones, apparently unrelated to one another, that occur at an average rate of about 7 per hour. The duration in days of a particular shower is somewhat arbitrary, since the beginning and ending are gradual and indefinite.

Skywatching tips

The only equipment you'll need is your eyes and a modest amount of patience.

The number of meteors an observer can see in an hour depends strongly on sky conditions. The rates quoted here are based on a limiting star magnitude of +6.5 (an exceptionally good, dark sky), an experienced observer, and the assumption that the radiant is directly overhead.

The lower the radiant in the sky, the fewer the numbers that will be seen. At an altitude of about 30 degrees, the hourly rate is halved, at 15 degrees it is one-third. No two observers prepare for a meteor vigil the same way.

Expect the overnight low temperature to be well below what the weather forecast suggests. When you sit quite still, close to the rapidly cooling ground, and if the air is even just slightly damp, you can become very chilled. It helps to take a late afternoon nap, followed by a shower, and to wear fresh clothing. Heavy blankets, sleeping bags, a ground cloth, an auto cushion, and a pillow are all necessary equipment. Some food and non-alcoholic beverages will help keep you comfortable.

Don't forget the moon

Another factor is the phase of the moon, which this year will be full on July 29 and new on Aug. 12. This makes it a very favorable year for viewing the Perseids, but not so favorable for those displays peaking at the end of July into early August. However, most are also active for a good number of days before and after maximum activity, so you can also watch for them when moonlight is not a hindrance.

Are these meteor showers worth watching?

In short, minor summer meteor showers are worth watching if you enjoy patient, low-key skywatching, but they are not ideal if you expect a dramatic display.

They offer a long observing season, require no equipment, and can produce a variety of meteors with different colors, speeds, paths, and occasionally bright fireballs. They also give observers more chances to watch when skies are clear and moonlight is less intrusive.

However, most are weak when compared to the Perseids, with low hourly rates and many faint meteors. Moonlight, low radiant positions, overlapping showers, and sporadic meteors can make them harder to see and identify, so observers need dark skies and patience.

Joe Rao serves as an instructor and guest lecturer at New York's Hayden Planetarium. He writes about astronomy for Natural History magazine, Sky and Telescope, The Old Farmer's Almanac and other publications.

It's not known whether "Ulysses 31" was on Christopher Nolan's radar in his teenage years, but it's intriguing to think it could have influenced the director's decision to take on Homer's "The Odyssey".

This animated space opera, a French/Japanese co-production, delivered a crash course in Greek mythology to a generation of kids who grew up in the '80s. And, although it looks more like "Star Wars" than Homer's original tale, it had a decent stab at transferring the Classics to the 31st century (the clue really was in the title), years before the Coen brothers took "The Odyssey" to the Deep South in "O Brother, Where Art Thou?"

The cartoon's core premise would be familiar to any Greek scholar, even though purists would surely bristle at the hero going under his Roman pseudonym, Ulysses, rather than the original Greek Odysseus.

At heart, it's that old story of a ship's captain racing to get home from Troy (in this case, a starbase) before his wife, Penelope, marries another man. That voyage is soon waylaid, however, when Ulysses' son, Telemachus, is abducted to become a sacrifice to a giant robot Cyclops.

Ulysses quickly lives up to the promise of his famous theme song — "Always fighting all the evil forces, bringing peace and justice to all" — by vanquishing the one-eyed menace and rescuing Telemachus along with Yumi and Numinor (a pair of blue alien Zotrians who, as far as we can tell, do not feature in the original Homer).

Unfortunately for Ulysses and his crew, he messed with the wrong giant robot Cyclops, because this one happened to belong to the Greek sea god Poseidon, who's now taken up residence in outer space. The deity is so annoyed at the puny mortal's impudence that he gets his brother, Zeus (aka the head honcho in Olympus), to inflict divine retribution.

Ulysses is subsequently sentenced to "travel among unknown stars" (his ship, the Odyssey, has its navigational databanks purged) while his crewmates — referred to, in what now sounds like contemporary corporate jargon, as "companions" — are put into a perpetual slumber. If he's going to make it home to Penelope, he'll need to find the Kingdom of Hades before his 26-episode run comes to an end.

It's less an update of Homer than a riff on his greatest hits, with several other notable classics of the Classical period thrown in for good measure. In addition to slaying the Cyclops, Ulysses follows in OG Odysseus's footsteps when he meets the Sirens and Lotus Eaters.

But he also ventures beyond the confines of Homer's narrative when he encounters Sisyphus (fated to devote his entire life to a repetitive, pointless task), Orpheus (en route to Hades to rescue Eurydice, the love of his life), and three-headed dog Cerberus, reinvented as an interceptor satellite with, yes, three heads.

Many of the character names are also familiar. Priam, the commander of the Troy starbase, shares his name with Troy's last king in antiquity, while Nestor, Ulysses' second in command, is an advisor in the original story. Shirka, the computer on Ulysses' ship, takes her name from Circe, a sorceress.

But the show also adopts a pretty liberal approach to the source material. Homer's version of Telemachus spends much of the story separated from his dad, whereas "Ulysses 31"'s is a constant presence. While Odysseus's shipmates mostly wound up dead, here they're plunged into a state of literal suspended animation, lifelessly floating in the ship's hold.

And Ulysses is already aware of the Greek gods before he makes first contact — in one episode, he even travels back thousands of years in time to meet his famous namesake.

If this sounds like writers sanitising the story for younger audiences, well, it didn't feel that way if you watched the show as a kid. At times, "Ulysses 31" is genuinely freaky, from those levitating lifeless bodies to some truly grotesque monsters. The gods themselves are also an unnerving presence, omnipresent beings of colossal power who see humans as their playthings and view Ulysses' toils as some twisted spectator sport.

Besides, unlike "Masters of the Universe" and many of the other biggest sci-fi cartoons of the '80s, the good guys weren't always guaranteed to win. Being Ulysses — a single dad guiding his son and adopted daughter Yumi through the cosmos — wasn't easy.

Now 45 years old (though it didn't find its way onto British and American TV screens until the mid-'80s), "Ulysses 31" is showing its age. The animation is often rudimentary, particularly in outer-space scenes that are effectively a cut-out of a starship being dragged across a stellar background. The dialogue, meanwhile, is played hilariously straight — good luck finding a laugh among these uncharted stars — and often consists of someone shouting another character's name. "Telemachus!" "Father!" "My son!" "Yumi!" etc. Telemachus's small red robot pal, Nono, is up there with the most irritating "cute" sidekicks of the era — quite the achievement in an extremely competitive field.

But there's also plenty to like. As static as they sometimes look, the spaceship designs have the feel of a classic space opera book cover, particularly Ulysses' eye-shaped craft, the aptly named Odyssey. The series also borrows heavily from a more modern piece of mythology, namely the "Star Wars" saga. Ulysses may not be a Jedi (as far as we know), but his gun/laser sword weapon looks a lot like a lightsaber. Some of the incidental music even apes John Williams' score from a galaxy far, far away.

Which brings us on to the soundtrack, the main reason this show lives on in the collective consciousness of a generation.

The work of Denny Crockett, Ike Egan, and, on selected tracks, Shuki Levy and Haim Saban (the latter duo also composed for "Masters of the Universe", "Jayce and the Wheeled Warriors," and many more cartoon classics), the music is a cut above. "The Curse of the Gods" refrain is loaded with menace, totally living up to its portentous title, and then there's that theme song.

Seriously, to people of a certain age — even those who remember nothing else about the show — hearing the name "Ulysses" is enough to get them singing "Ulysee-ee-ee-ee-ees" ad infinitum, an earworm truly worthy of the gods of Olympus.

Homer's tales may still be remembered thousands of years after he wrote them, but you can guarantee he didn't have a tune quite like that.

"Ulysses 31" isn't on any major streaming service, but there are fan uploads on YouTube if you want to experience the show for yourself.

If you still picture Mars as a monotonous red desert, it may be time for an update.

The European Space Agency's Mars Express orbiter has been capturing some of the Red Planet's most surreal landscapes, and its latest images reveal a sprawling field that looks like molten metal frozen across the floor of an ancient Mars crater.

The shimmering "waves" aren't metal at all, however. They are dark sand dunes dusted with seasonal frost, much of it carbon dioxide, or "dry ice," that settles on the surface during Martian winters, giving the dunes their uncanny chrome-like sheen, according to ESA.

The rest is a trick of light and contrast. Because the dark sand absorbs light and the white frost reflects it, the interplay transforms the landscape into something that looks more like a scene from a sci-fi movie than a windswept Martian plain.

Over thousands of years, Martian winds have sculpted this volcanic sand into dunes that now ripple through the floor of Kaiser Crater, a 129-mile-wide (207-kilometer-wide) impact basin in the planet's southern highlands. The bowl-shaped crater acts as a giant sand trap that prevents the sand from escaping, according to NASA.

The dunes themselves are darker than much of Mars' surface because they are made of fine, basaltic sand rich in volcanic minerals such as pyroxene and olivine, rather than the iron-oxide dust that gives the planet its familiar rusty-red appearance and its famous moniker, the Red Planet.

Because the crater floor remains visible between the ridges, scientists think there is a relatively limited sand supply shaping the field. Still, these ripples of sand are massive, extending for several kilometers and towering more than 100 meters (320 feet) above the surrounding terrain.

The landscape isn't just visually dramatic, it also preserves clues to a time when Mars was a very different world.

Today, Mars is wrapped in an atmosphere little more than a thin veil that is 100 times thinner than Earth's and slowly leaking into space. That makes it harder for winds to lift and transport sand than it is on our own planet. Yet the soaring dunes inside Kaiser Crater show that Martian winds have nonetheless been powerful enough to sculpt vast landscapes over time, perhaps during a period when the Martian atmosphere was thicker a few billion years ago.

The new image adds to a growing collection of striking Martian scenes captured by Mars Express, which has been orbiting the Red Planet since 2003. Just last month, the probe tracked a frenetic cluster of 30 dust devils swirling through the canyons of Mamers Valles, also in the northern hemisphere.

Over the spring and summer, the orbiter similarly spotlighted the planet's vast and complex geological history, from Shalbatana Vallis — carved by groundwater floods about 3.5 billion years ago into winding valleys that span the length of Italy — to a massive blanket of dark volcanic ash elsewhere on the world that has spread across a large chunk of the terrain over just the last 50 years, having either been redistributed by Martian winds or exposed as the overlying dust was blown away.

However desolate Mars may appear from afar, there is certainly no shortage of activity on its surface — or discoveries still waiting to be made.

People keep asking me about the total solar eclipse on August 12. That's understandable. For anyone in the Northern Hemisphere, it is shaping up to be a joyous day of astronomy. Totality will cross eastern Greenland, western Iceland and northern Spain, but much of Europe will see a very deep partial eclipse, and even parts of North America will see a small bite taken from the sun. Then, just hours later, the Perseid meteor shower will peak beneath perfectly moonless skies. What a double-act!

The problem with promoting days and nights like that is that they make us think skywatching is only worth doing at very specific times. Everything becomes about moments, peaks and countdowns. That rings true for an eclipse, of course, but for the Perseids, it's less so.

The Perseid meteor shower actually begins right now. It's active from July 17 through August 24. Yes, it reaches a strong maximum overnight on August 12-13, where observers under ideal dark skies could see 50 or more "shooting stars" per hour. That's absolutely the night to aim for if you only go stargazing once a month. But for stargazers with a little more time, the hunt can begin right now.

The best Perseid is the first one you see. In these weeks before the peak, there's less expectation, less focus on the weather. An unexpected streak while you are outside feels accidental.

For me, it often happens when I've stopped observing properly for the night. Last summer, I was moving my telescope indoors late at night after a fairly unremarkable session looking at a few globular clusters. As I went back inside, I did my usual pause and look at the stars one last time. As I did, my peripheral vision caught a bright meteor whizzing across rooftops in the northeast. Summer's meteor season had begun with a bang when I least expected it to.

The Perseids officially build gradually over several weeks as Earth slowly enters the broad debris stream left behind by Comet Swift-Tuttle. It was last in the inner solar system in 1992 and will return in 2126. The peak around August 12—13 marks the densest part of the stream, but in mid-July, only a handful of meteors will appear each hour. That's exactly why early Perseids feel so special — you stumble across a meteor when you least expect it. Its gradual beginning also explains why some of the earliest Perseids can be surprisingly dramatic. The shower is famous for bright fireballs — large, vivid meteors that sometimes leave glowing trails lingering for several seconds. Even when overall meteor rates remain low in July, a single bright Perseid can add some magic to a night's observing.

What's happening and when to look

If you want to begin watching for Perseids this week, the best time is after midnight through the small hours before dawn, when the radiant constellation, Perseus, climbs higher in the northeastern sky. "Shooting stars" can appear anywhere in the night sky, but if their paths backward point roughly toward Perseus, it's a Perseid. That's what gives the shower its name.

There's more to look at than Perseids because July is quietly crowded with other meteor showers. The Southern Delta Aquariids begin strengthening through the second half of the month. From southern latitudes, they can produce roughly 25 meteors per hour under dark skies, though observers farther north tend to see fewer because the radiant stays low in the southern sky. These meteors are usually softer and subtler than Perseids — medium-speed streaks without many dramatic fireballs or glowing trails.

Running alongside them are the Alpha Capricornids, active from early July into mid-August. Technically, this is a weak shower, often producing only a handful of meteors per hour, but it compensates with unusually bright, slow-moving fireballs.

Unfortunately, both showers peak this year beneath an almost full Buck Moon on July 30-31, which will wash out many fainter meteors. But bright meteors and fireballs should still occasionally punch through the moonlight.

How and when I'm watching it

I will probably begin meteor season the same way I always do: accidentally. I'll increase the odds by lingering outdoors slightly longer than necessary on warm nights, staying up later than I should and using my smart telescope to collect data on deep-sky objects while I search the skies for the first Perseid. It's best done now, before the moon waxes to full, and certainly before early August, when it wanes — the worst moon phase for observing meteors because it's in the sky just as meteor activity peaks.

Stargazer's corner: July 17-24, 2026

With a new moon on July 14, this weekend is perfect for watching the return of a waxing crescent moon to the night sky. Look low in the west during dusk on Friday, July 17, to see a 16%-illuminated waxing crescent moon to the left of Venus. Watch it climb higher into the evening sky night after night, leaving genuinely dark late-night skies once it sets. It's good timing for the first serious Perseid-watching session of the season, particularly after midnight when meteor activity naturally increases as Earth rotates into the direction of travel around the sun.

Meanwhile, the Summer Triangle — formed by Vega, Deneb and Altair — hangs almost overhead during the darkest hours, making this one of the easiest seasonal star patterns for beginners to learn. Saturn now rises comfortably before midnight and dominates the southeastern sky by dawn, when it's joined by Mars and the stunning Pleiades open cluster.

Constellation of the week: Perseus

Perseus, "The Hero," never quite looks how beginners expect. Rising into the northeastern night sky around midnight this week between bright star Capella and Saturn in the east, its name suggests something dramatic, but the constellation itself appears more like a loose chain of stars stretching below Cassiopeia in the northeastern sky. At this time of year, Perseus rises late, which is why the best Perseid activity happens after midnight once the radiant climbs higher. Beginners often assume meteors appear only near the radiant itself, but the longest and most impressive Perseids usually streak much farther away across the sky. Perseus matters less as a viewing target than as a reminder that meteor showers are fundamentally about perspective. The meteors are not actually emerging from the constellation at all — Earth is simply driving through comet debris head-on.

Making a sequel to Ridley Scott's 1979 classic "Alien" should have been a disaster. This was a movie that defined a whole new sub-genre of outer-space horror, a perfectly structured scarefest that also introduced one of cinema's greatest-ever monsters to the world.

Luckily, James Cameron — then one of Hollywood's hottest properties off the back of "The Terminator" — has never been a shrinking violet, and was brave enough to face the Xenomorph challenge head-on. Reinventing the franchise as a muscular sci-fi action movie, he created a whole new sub-genre of his own with a film every bit as memorable as its predecessor.

So, as the peerless "Aliens" turns 40, here — in honour of LV-426, the moon where the movie takes place — are 26 reasons it's still the greatest sci-fi action movie of all time.

1. James Cameron’$ original pitch

With only "The Terminator" (and the long-forgotten "Piranha II") on his resumé, James Cameron was yet to ascend to "king of the world" status when he pitched for the "Alien" sequel. His subsequent meeting with studio execs has since become the stuff of Hollywood legend.

The story goes that he turned over a copy of the script, wrote "ALIEN", added an S to the end, and then scrawled a couple of lines through the final letter. "ALIEN$" was a language the bigwigs understood, and you know what? Cameron was kinda right.

2. A new genre

Same continuity, same creature, same lead character… "Aliens" is undeniably a sequel to "Alien".

But while Ridley Scott's original film was already the definitive outer-space horror, Cameron boldly shifted genres to make the definitive outer-space action movie. Forty years on, fans are still debating which one is best.

3. Nothing is wasted

Anyone teaching action movie screenwriting should use "Aliens" as a core text. It's lean, it's efficient, and every line and moment is integral to the all-time classic whole.

It's no accident that Ripley shows off her Power Loader skills in the opening act — it's Cameron's version of Chekhov's gun.

4. The time jump

Some sequels pick up immediately after their predecessor left off. But by leaving Ellen Ripley in hypersleep for 57 years, the universe has a chance to evolve around her. Indeed, that's enough time for Weyland-Yutani to colonize LV-426 and — just maybe — pay a visit to that mysterious spaceship with all those eggs in its cargo hold.

What could possibly go wrong?

5. Ellen Ripley

Ellen Ripley may have been the accidental hero of "Alien", but she's 100% proactive in "Aliens". At the beginning of the movie, she's still traumatized by her experience on the Nostromo, and her employers at Weyland-Yutani are doing little to help. But her cool head in a high-pressure situation puts highly trained Colonial Marines to shame, and by the final act, she's grown into one of cinema's greatest heroes.

Sigourney Weaver rightly earned herself an Academy Award nomination for her tour de force performance.

6. The Colonial Marines

Cameron waited until late on in production to shoot the scene where the Colonial Marines wake up from hypersleep. It's a genius move, their real-life familiarity helping to establish a convincing camaraderie between these elite soldiers.

Even though most are lucky if they speak more than a line or two, Cameron's writing is so tight that we already know plenty — and care — about them when they inevitably become Xenomorph fodder. (Top fact: with the exception of Lt Gorman and Corporal Hicks, the Marines all share a first initial with the actor who plays them.)

7. The Dropship

Physics purists can bemoan the science all they like, but there's something undeniably cool about the craft that plunges the Marines to the surface of LV-426. A wonderfully utilitarian example of pre-CG model work.

8. The slow-build

In the original version of the movie, an entire hour has passed before you see an alien. Cameron doesn't waste a second of that time, however, establishing characters (see above), introducing Newt, showing off the geography of the Hadley's Hope terraforming base, and building a creeping sense of dread.

Those acid burns on the floor can't be good news, right?

9. The shouldercams

In an era when cameras can be shrunk down into phones or even a pair of glasses, anybody can film anything. But when Cameron gave his soldiers shoulder-mounted video units, it felt genuinely groundbreaking. It provides a suitably chaotic Marine's-eye-view as the carnage unfolds, but you always know whose perspective you're following because, well, their names are written on screen.

10. The ambush

"Aliens" may take its time getting to the actual aliens, but when it does, it doesn't hold back.

The walls start moving, flame-throwers start flaming, and suddenly the Marines are on the back foot against a vastly superior enemy. Throw in an exploding bag of ammunition, and it's all so brilliantly disconcerting that you need several rewatches to work out what you've just witnessed.

Within a matter of minutes, Hicks, Hudson, Vasquez, and Gorman are the only Marines left standing — and Gorman's technically comatose.

11. The Xenomorph drones

HR Giger's original Xenomorph is a design classic, but Cameron was more concerned about practicality than looks.

The new alien suits (usually occupied by gymnasts and acrobats) prioritized movement, as the director went big on research and development to make sure their motion was as inhuman — and as fast — as possible.

Remarkably, only six suits were built for "Aliens", but ingenious editing makes it look like Hadley's Hope is swarming with them.

12. The Alien Queen

We'd seen the eggs, the Facehuggers, and the drones. But, as Ripley pointedly asks, "Who's laying the eggs?"

The answer is a truly terrifying new stage in the Xenomorph life cycle, and arguably the last essential addition to the franchise's mythology.

Designed by Stan Winston (who'd worked with Cameron on "The Terminator" and won an Oscar for his work on "Aliens"), the Alien Queen is a towering apex predator who'll do anything to protect her kids.

13. Newt

Introducing a kid to a hard-boiled action franchise can be a risky move, but Rebecca Jordan (known to everyone as Newt, played by Carrie Henn) is totally integral to "Aliens".

As the last known survivor of Hadley's Hope, she's resourceful as hell and has plenty to teach the heavily armed Marines about survival in a Xenomorph-infested world. She also brings out the maternal instinct in Ripley, a key theme of the movie that comes to a head in her famous face-off against the Queen: "Get away from her, you bitch!"

Speaking of which…

14. The quotable dialogue

"We're on an express elevator to hell." "They mostly come at night… mostly." "Game over, man. Game over." "I say we take off, nuke the site from orbit. It's the only way to be sure."

Few action movies — with the possible exception of "Predator" and "Die Hard" — are quite as chock-full of zingers as "Aliens".

15. The APC

The Armored Personnel Carrier is every bit as iconic as the dropship it calls home.

Part mobile base-of-operations, part all-terrain action vehicle, it's the reason the few remaining Marines escape their close encounter in one piece — even if its transaxles have issues dealing with concentrated acid blood.

It's telling that the Resources Development Administration hardware in the "Avatar" series is so heavily influenced by this timeless "Aliens" tech.

16. Facehuggers on the move

The Facehugger that jumped — and subsequently impregnated — Kane in the original “Alien was already the stuff of nightmares. But the parasites in the sequel are much more than some acid-blooded jack-in-a-box.

In “Aliens”, those spider-like legs allow them to scurry around to hunt down their prey, ensuring they're a clear and present danger — even if you're not foolhardy enough to put your face over an open egg.

17. Carter Burke

If there’s one thing the "Alien" saga has taught us, it's that you should never, ever trust Weyland-Yutani, chillingly referred to simply as "the Company".

If "Alien"'s Ash was the ultimate company android, Burke (Paul Reiser) is the epitome of the company man, a total scumbag whose friendly, "I'm-your-best-friend demeanor" can’t disguise the fact that he’d screw you over for a percentage, kiddo. The only character in the movie whose death by Xenomorph elicits a cheer.

18. The motion trackers

You don't need to see the Xenomorphs to know they're there.

The ominous beep of the Marines' motion trackers is a highly effective way of teasing the approaching menace — even when they're hiding in the ceiling.

19. A countdown to detonation

It's bad enough that you're trapped on a barren moon surrounded by a vicious hive of extraterrestrials who want to use you as hosts for their offspring. And that your primary choice of rescue has crashed on the surface, leaving you even more stranded.

Then, fate (or, to be more accurate, James Cameron) throws you a curveball in the form of an atmospheric processor about to go nuclear. The clock is well and truly ticking…

20. Bill Paxton

The late Bill Paxton was Cameron's lucky charm, also turning up in "The Terminator", "True Lies", and "Titanic". But "Aliens" is his signature role, as the famously pessimistic Private Hudson makes the most of his limited dialogue.

As an interesting sidenote, Paxton had the honor of being killed on screen by a Terminator, a Predator, and a Xenomorph.

21. The Power Loader

Part Japanese mecha, part Transformer, Ripley's Power Loader is an instantly iconic piece of kit, so painstakingly designed that it looks like it could actually work IRL.

If you're going to go woman-to-woman with an angry Alien Queen, never leave the house without one.

22. Bishop

Ash, the Nostromo's resident synthetic in "Alien", was a bona fide bad 'un, prepared to sacrifice the crew in the name of getting a valuable Xenomorph back to "the Company"’s weapons division.

It's hardly a surprise, then, that Ripley is suspicious of Bishop (Lance Henriksen) from the off. Luckily for everyone, he gradually proves his worth via his skills with the knife game, elite dropship-piloting abilities, and generally being an all-round good egg.

Not bad for an android… (Bishop is manufactured by Hyperdyne Systems, a nod to Cyberdyne in Cameron’s “Terminator” movies.)

23. The music

"Aliens" was James Horner's first collaboration with Cameron (he went on to write the scores for "Titanic" and "Avatar"), and the then-32-year-old provided the perfect musical backdrop for the action unfolding on screen.

Sure, some of the themes are derivative of the composer's own "The Wrath of Khan" soundtrack, but it's impossible to imagine "Aliens" without Horner's contribution.

24. The sound effects

The best sci-fi franchises are as recognisable for their sound as their visuals. So, just as, say, "Star Wars"’ lightsabers and "Star Trek"s transporters are aurally unmistakable, "Aliens" has its own distinctive soundscape.

Hear a pulse rifle firing or the squeal of a Xenomorph, and you know exactly where you are. Best Sound Effects Editing was one of the film's two Academy Award wins, and it's easy to see why.

25. The Special Edition

If you've never seen "Aliens", the tighter theatrical cut is definitely the place to start. But once you know what's waiting for the Colonial Marines on LV-426, the Special Edition is the definitive version of the movie.

From Newt's family making first contact with a Facehugger to a wonderfully tense sentry gun sequence, Cameron's extra footage enhances a classic. It also adds to the film's mother/child subtext when we learn that Ripley had a daughter, Amanda, who died just before Ellen was discovered by the Weyland-Yutani recovery crew.

Amanda would later be retconned to become the lead character in the survival horror video game "Alien: Isolation".

26. Cameron himself

Cameron's intense working methods famously didn't go down well with his unionized British crew, who famously made t-shirts bearing the slogan "You can't scare me, I work for James Cameron".

But whatever the on-set experience, it's impossible to deny that he marshalled proceedings to perfection. Even the director's lesser works — the "Avatar" sequels, for example — feature action beats of unassailable genius. "Aliens", however, demonstrates a filmmaker at the pinnacle of his powers.

Every sci-fi action movie ever made will be judged against "Aliens". Even the brilliant "Predator" lives in the shadow of a movie that remains untouchable — and endlessly rewatchable — four decades after its original release.

"Aliens" is available to stream on Disney+ in the UK, and to rent and buy on various platforms in the US.

After more than two decades of searching, scientists have finally observed a phenomenon in a hot and dense particle 'soup' similar to that which filled the cosmos moments after the Big Bang. The observation could help cosmologists better understand the incredibly hot and dense state of the universe in its earliest moments.

The world's most powerful particle accelerator, the Large Hadron Collider (LHC), regularly creates this so-called quark-gluon plasma by smashing together the atomic nuclei of heavy elements like lead and generating sprays of particles called jets, from which this hot and dense particle soup emerges. This is necessary because in the modern universe, quarks and gluons, referred to as "partons," are only ever found together comprising particles like protons and neutrons. Thus, it takes the kind of energy generated by smashing atoms together at near-light-speeds to free these partons and generate the hot 'soup' known as quark-gluon plasma.

As particles ripple through the quark-gluon plasma, they lose energy and momentum to this medium, which should create wakes in this primordial soup, much like that which is created when the hull of a boat pushes through the ocean. However, researchers had failed to see this so-called "diffusion wake" for two decades. That is, until now.

"Observing and quantifying the quark-gluon plasma diffusion wake opens the door to the new precision characterization of the properties and dynamics of the quark-gluon plasma, and promises new insights into the evolution of the early universe,” team leader Raghunath Pradhan of the University of Illinois Chicago (UIC) said in a statement.

A new approach in the hunt for particle wakes

Previously, the search for wave signals had involved generating events involving the production of a jet alongside a particle called a Z boson. However, while this had provided some evidence of particle wakes, signals from these wakes are subtle and easily drowned out by other jet-related effects, meaning these detections weren't statistically significant enough to be classed as a confirmed detection.

To search for the wave signal, this team took a different approach and used the LHC to smash together two lead nuclei to create jets of particles that were back-to-back, called a dijet event. The unique shape of these events meant that signals from wakes could be more easily disentangled from surrounding noise.

The team's measurement showed a clear lack of particles behind the direction of the jets, which was particularly prominent at relatively low momentum. That is exactly what would be expected for a diffusion wake. The strongest wake signals were detected in more centralised lead-lead collisions, which create more quark-gluon plasma.

"This observation is a culmination of a decades-long quest to observe the wake phenomenon; it has been predicted by theory over 20 years ago, but remained elusive in the experimental data," team leader Olga Evdokimov of UIC said.

The team's research was accepted for publication on June 25 in the journal Physical Review Letters.

An Indian company just made spaceflight history.

Skyroot Aerospace successfully launched its Vikram-1 rocket to low Earth orbit (LEO) early Saturday morning (July 18), making India just the third country with a private orbital launch capability. The other two are established space powers — the U.S. and China.

"It is the dawn of a new space era," one of Skyroot's commentators said during the company's launch webcast on Saturday.

Skyroot Aerospace is based in the central Indian city of Hyderabad and was founded in 2018. The company made history for the first time four years later with its Vikram-S suborbital rocket, becoming the first private Indian outfit ever to reach space.

Vikram-1 is the next step for Skyroot: an orbital vehicle. The four-stage, seven-story-tall rocket is a small-satellite launcher; it can haul about 770 pounds (350 kilograms) of payload to LEO, according to the company.

"The small satellite launch market is deeply constrained on the supply side," Skyroot co-founder and CEO Pawan Kumar Chandana said in an emailed statement on Thursday (July 16).

"At the same time, the demand for services enabled by satellites in space will only continue to grow, and that is where Skyroot's opportunity lies," added Chandana, who, like company co-founder Naga Bharath Daka, used to work for the Indian Space Research Organisation.

The company began exploiting that opportunity on Saturday morning, with a test flight called Aagaman (Sanskrit for "Arrival"). The main goal was to see how Vikram-1 and its various systems performed during flight. But the rocket also carried some customer payloads, which were scheduled to be deployed at an altitude of 280 miles (450 kilometers).

Those payloads included a technology demonstration from the German company DCUBED; the Solaras S3 nanosatellite pathfinder from Indian startup Grahaa Space; and Embrace, a robotic arm built by the Indian company Cosmoserve Space that's designed to capture space debris.

Vikram-1 also carried Skyroot's SCOPE satellite, which collected a variety of data to help the company assess the rocket's performance during flight. There were two symbolic payloads on board as well — a small, 18-karat gold rocket from the artist Ajay Kumar Mattewada and "Cosmic Bloom," which was designed by Cosmos Diamonds, a company that makes jewelry using lab-grown gems.

All of them made it to space safe and sound. Vikram-1 lifted off from the Satish Dhawan Space Centre, on the Indian barrier island of Sriharikota, on Saturday at 2:35 a.m. EDT (0635 GMT; 12:05 p.m. India Standard Time), roaring off the pad in a flash thanks to its first-stage solid rocket motor.

The rocket performed as planned, sticking to a nominal trajectory and deploying the payloads right on schedule. Vikram-1 had ticked all of its boxes by just 17 minutes after liftoff, leading to a pronouncement from mission control.

"The Vikram-1 Aagaman mission is a grand success," the mission director said, eliciting cheers from the folks in the room.

It was a big moment for Skyroot and for India, and it augurs big things to come, according to Lt. Gen. AK Bhatt (retired), Director General of the Indian Space Association.

"The successful orbital launch of Skyroot Aerospace’s Vikram-1 (Mission Aagaman) is a defining milestone for India’s space journey," Bhatt said in an emailed statement shortly after the mission wrapped up. "By executing the nation's first fully private orbital flight, Skyroot has shattered legacy boundaries, demonstrating that our domestic industry is primed to handle end-to-end space missions."

Editor's note: This story was updated at 3:25 a.m. ET on July 18 with news of successful launch and satellite deployment.

Reboots and remakes may be all the rage in Hollywood with mixed degrees of success (we don't talk about the Nightmare on Elm Street reboot ... ever), but they aren't so popular in other forms of art such as painting. However, a recent cosmic rework of one of art's most well-regarded pieces could be just as breathtaking as its original counterpart.

That's all thanks to the Dark Energy Camera (DECam), which has captured a vibrant view of the Corona Australis molecular cloud, that shows the star-forming region resembling a cosmic take on Vincent Van Gogh's iconic painting The Starry Night.

The Corona Australis Molecular Cloud measures around 16 light-years in diameter is located around 430 light-years from Earth, making it one of the closest star-birthing regions to our solar system. The molecular cloud and its dark lanes of gas and dust, the raw materials for star construction, are at the left of the DECam image.

Also prominent on the left of the image is the shining nebula NGC 6729, which is a reflection nebula of the Corona Australis Molecular Cloud. That means that it is a cloud of interstellar dust that is reflecting the light of the newborn stars embedded within this molecular cloud.

NGC 6729 is composed of different elements that can be seen on the left side of the image. This includes an orange cloud that is actually the binary star system R Coronae Australis. This binary consists of a pre-main-sequence star that has gathered mass but hasn't yet triggered the fusion of hydrogen to helium in its core, and its companion, a red dwarf star. These stars orbit each other every 43 to 47 years and are incredibly bright, with their light also reflecting from nearby reflection nebulas. This light also ionizes nearby gas, creating glowing regions called emission nebulae, also part of NGC 6729.

To the top-right of the image is the globular cluster NGC 6723, nicknamed the Chandelier Cluster. Located around 29,000 light-years from Earth, NGC 6723 is thought to contain some of the oldest stars in the Milky Way.

The Chandelier Cluster contains tens of thousands to millions of stars, which aren't all ancient; within the spherically shaped globular cluster are more than a smattering of younger stars.

Astronomers and astrophotographers of all levels will be more than familiar with the Corona Australis Molecular Cloud and the Chandelier Cluster and this region as a whole.

But just as it took the artistic vision of Van Gogh to transform the night sky into a stunning painting, it has taken the observing power of the DECam, mounted on the Víctor M. Blanco 4-meter Telescope at Cerro Tololo Inter-American Observatory (CTIO) in Chile, to bring out the stunning beauty of this slice of the night sky.

The wildfires tearing across Canada are so extreme that the smoke billowing upward can be seen from space.

What is it?

Over 850 wildfires are currently devastating Canada, as reported by the Canadian Interagency Forest Fire Center. The fires are spreading across Manitoba, Saskatchewan and Ontario; most remain completely uncontrolled.

In addition to the immense destruction caused by the fires themselves, the smoke from these fires is causing serious concerns about dangerously poor air quality all across Canada and even in the northeastern United States. As far as New York, the air quality on Thursday (July 16) was labeled "very unhealthy" after the state activated emergency air quality protocols.

The smoke is so expansive it's clearly visible in this image captured on July 14 from Earth orbit.

Why is it noteworthy?

Studying wildfires and wildfire smoke from orbit can give us a bigger picture view of these catastrophic event. This data is important for disaster relief in the short term — but also in the long-term. With climate change continuing to progress due to human activities like burning coal for cheap power, we can expect natural disasters to worsen. Among the many effects of climate change, this includes longer and more intense wildfire seasons, especially in regions that are already susceptible to fire such as these regions across Canada.

The new image was captured by the NOAA-21 satellite with the instrument VIIRS (Visible Infrared Imagine Radiometer Suite). You can see massive plumes of smoke over southeastern Canada treading into the northeastern U.S. Thick smoke covers swaths of Canada's landscape and wisps of smoke trail all the way down through New York and across the U.S.

Most of this smoke, at least the smoke we can see in this satellite image, is coming from wildfires in northwestern Ontario. As the wildfires continue to burn, satellites like NOAA-21 will be keeping watch.

Look up! The Perseid meteor shower is finally active, bringing the potential for gorgeous shooting stars and fireballs as Earth plunges into the trail of debris shed by the icy comet Swift-Tuttle. Here's what you need to know.

The Perseid meteor shower 2026 is set to be a truly magnificent affair and a stark contrast to last year, when moonlight drowned out all but the brightest shooting stars. The shower will reach peak activity overnight on Aug. 12-13 under the dark skies of the new moon. During the peak, up to 100 shooting stars may be seen each hour as they cut fiery paths through the summer sky, according to the American Meteor Society.

You could even spot a Perseid brightening the false twilight triggered at the climax of the Aug. 12. eclipse, as the moon perfectly hides the surface of our parent star. But for that to happen you'd have to find yourself in the path of totality just as a large fireball-producing meteoroid struck Earth's atmosphere. It's certainly possible, but let's just say that the odds aren't stacked in your favor.

If you're not in the path of totality then there's no need to despair, you stand a much better chance of spotting Perseids the old fashioned way anyway!

How to spot Perseid shooting stars

Perseid meteors can be spotted anytime after dark from tonight onwards, streaking away from a patch of sky, or radiant, located close to the red supergiant star Eta Persei in the constellation Perseus.

To find the best meteors, you'll first want to locate Perseus glistening above the northwestern horizon after dark. Next, find a patch of sky 40 degrees above it, and settle in for one of the year's premier natural light shows. This is where the shooting star trails will be at their longest.

The Perseids are also famed for producing vivid green fireballs capable of briefly turning night to day as larger chunks of debris collide with Earth's atmosphere at speeds of up to 37 miles per second (59 kilometers per second).

When to look for Perseid meteors

Perseid meteors may be spotted anytime from 10 p.m. onward for viewers in the U.S., though the number of visible shooting stars will be higher in the hours before dawn, when the radiant rises to its highest point in the summer night sky. Try to head away from city lights and allow at least 20 minutes for your eyes to adapt to the darkness.

Relatively few shooting stars will be visible in the days following the shower's awakening compared to the peak. However, if you do catch one, you'll have seen the demise of a meteoroid that's likely been flying through space for thousands of years before reaching Earth.

"The meteors we see early and late during the activity are most likely the oldest as they have obviously been perturbed from the main orbit of the comet, which we encounter in mid-August," said Robsert Lunsford of the American Meteor Society in an email to Space.com.

The greatest number of meteors can be seen in the predawn hours of Aug. 13 as the shower reaches peak activity, when Earth passes through the densest section of the debris stream left behind by comet Swift-Tuttle.

Want to capture your own photos of the Perseid meteor shower? Then be sure to read our guide detailing how to image shooting stars, along with our roundups of the best cameras and lenses for astrophotography.

Editor's Note: Did you capture a photo of a Perseid and want to share it with Space.com's readers? Then please send your photos and comments, along with your name and location to spacephotos@space.com.

Astronauts just flew to Earth orbit space atop a rocket emblazoned with an energy-drink ad.

The Soyuz MS-29 launch to the International Space Station on Tuesday (July 14), from the Russian-run Baikonur Cosmodrome in Kazakhstan, used a Soyuz rocket festooned with ads for Лимонад ("Lemonade") LIT ENERGY. The ads are visible in shots of the rocket's rollout on July 11, published here and here via NASA's Flickr account.

The Soyuz used for the launch also featured drawings from children with cancer — as well as the phrase "Life has no end" — to advertise the Unity Charitable Foundation, according to a Russian-language state media report machine-translated into English. The campaign is part of a series in support of the foundation that began in November 2025, the media report added.

To be sure, the Russian space agency Roscosmos (like other space agencies) often adorns its rockets with colorful artwork and logos that may not necessarily result in payment. In June 2018, for example, a Soyuz launched with a FIFA World Cup logo that may have been a publicity campaign to advertise the soccer competition, which was occurring that month in Russia.

While there have been some experiments by other space agencies regarding advertising — anyone remember the space cola wars? — here are a few notable examples from Russia and its predecessor state, the Soviet Union.

• A 1990 cosmonaut launch, partly for the Tokyo Broadcasting Service, carried a Japanese journalist from TBS — as well as advertisements on the side of the Soviet Soyuz rocket. Sony, Unicharm and Pocari Sweat patches were also reportedly flown on the mission.
• After the breakup of the Soviet Union, the Mir space station featured advertisements for companies like RadioShack, Pepsi and Israel's Tnuva Milk.
• A Pizza Hut ad flew on a Russian Proton rocket in 2000 for roughly $1.25 million (nearly $3 million in today's dollars). The restaurant chain then followed up in 2001 with a special space pizza delivery — but using salami, as it is more shelf-stable than pepperoni.

So Russia's practice of launching ads into space is not new. However, Ars Technica has suggested that contractions in the Russian economy led to very recent changes in the country's laws for space advertising that could lead to more examples like this.

Russia's unsanctioned invasion of Ukraine in February 2022 caused many international partnerships in space (and other projects) to fall apart, which Ars believes may have led to Russian President Vladimir Putin's authorization for recurring space ads. The new legislation was cited on Roscosmos' Telegram account in October 2025, the Ars report added.

"According to the amendments, Roscosmos has been granted the right, effective January 1, 2026, to place advertising on space objects owned by both the state corporation itself and federally," said the Roscosmos statement, according to Ars. "The amendments will create a mechanism for attracting private investment in Russian space exploration, and reduce the burden on the state budget."

Roscosmos and NASA continue to work together on the ISS despite sanctions imposed after the invasion of Ukraine, which is ongoing. And Tuesday's launch marked a milestone in that cooperation, as NASA Administrator Jared Isaacman became the first with his title to attend a Soyuz launch in eight years.

SpaceNews noted that Isaacman and Roscosmos Director General Dmitry Bakanov had the first reported face-to-face meeting between the agency heads since the last in-person NASA chief visit, for an October 2018 launch. After the meeting between Isaacman and Bakanov, Russia announced a two-year extension of its ISS commitment, to 2030, as well as an agreement in principle to continue offering NASA astronauts seats on the Soyuz in exchange for seats on commercial U.S. vehicles, among other developments.

The most powerful solar storms to strike Earth may pack a bigger punch than scientists realized, according to a new study that suggests the impacts of extreme space weather have been underestimated.

Researchers found evidence that the apparent upper limit on Earth's response to the strongest solar storms may be an artifact of how solar wind has been measured rather than a true physical ceiling. If confirmed, the findings suggest that rare "once-in-a-thousand-year" geomagnetic storms could have a greater impact on modern technology than current estimates indicate, according to a statement.

"Our planet's magnetic field does a really great job of protecting us against many space weather effects and so they often just show up as glitches or beautiful aurora," Maria Walach, co-author of the study from Lancaster University, said in the statement. "There are however extreme cases."

Solar storms occur when eruptions from the sun, such as coronal mass ejections and solar flares, send clouds of charged particles hurtling toward Earth. While they can produce spectacular auroras, they can also disrupt satellites, GPS, radio communications and power grids.

History has shown the damage even less extreme storms can cause. The 1859 Carrington Event, the strongest geomagnetic storm on record, disrupted telegraph systems around the world and pushed auroras from their usual high-latitude skies near the Arctic and Antarctic to locations as far south as the tropics. Another powerful storm in 1989 collapsed Quebec's power grid, leaving millions without electricity, while the 2003 "Halloween storms" disrupted satellites, GPS and radio communications.

While the study doesn't suggest that an unprecedented solar storm is imminent, it argues that scientists may need to rethink how they estimate the severity of the rarest events — an increasingly important challenge as modern society grows more dependent on satellites and other vulnerable technologies.

The researchers traced the apparent upper limit to where most solar wind measurements are collected. Many observations of extreme events come from spacecraft near the Sun-Earth Lagrange Point 1 (L1), about 1 million miles (1.5 million kilometers) upstream of Earth. Because the strongest solar wind tends to weaken somewhat before reaching Earth, comparing L1 measurements with conditions at our planet can make it appear that Earth's upper atmosphere stops responding to increasingly intense solar wind, even when it does not.

To test that idea, the team analyzed more than one million solar wind measurements collected by NASA spacecraft orbiting much closer to Earth, where the solar wind directly interacts with our planet's magnetic field. Those observations showed that electrical currents flowing through Earth's upper atmosphere continued to increase alongside stronger solar wind, with no sign of the previously assumed upper limit. The results suggest that exceptionally powerful solar storms could generate stronger geomagnetic disturbances — and greater impacts on satellites, communications systems and power grids — than earlier estimates predicted.

"Fortunately, these very extreme cases are rare, but this also means we have limited data to work with and only time will tell what happens at the very extreme one-in-a-thousand-year kind of event," Walach said in the statement.

The study comes as the sun remains near the peak of its roughly 11-year solar cycle, known as solar maximum, when sunspots, solar flares and coronal mass ejections become more frequent. During the current cycle, strong geomagnetic storms have repeatedly sent auroras far beyond their usual polar skies.

In May 2024, the strongest geomagnetic storm in more than two decades illuminated skies across much of the United States and Europe while causing intermittent disruptions to high-frequency radio communications, GPS-guided equipment and some satellite operations. Although significant, that event was far less powerful than the Carrington Event — or the even rarer storms the new study suggests may be possible.

The findings were published July 15 in the journal Nature.

Update for 12:15 p.m. ET on July 20: SpaceX is now targeting Monday (July 23) for the launch of Starship Flight 13, during a 90-minute window that opens at 6:45 p.m. EDT (2245 GMT).

Starship wasn't quite ready to fly today (July 16).

SpaceX tried to launch the Starship megarocket on its 13th test flight today but couldn't quite pull it off. Something went wrong just as the giant vehicle's 33 first-stage Raptor engines started to fire up, and an abort was triggered.

"We'll take some time, dig into what triggered that abort once the booster was igniting to launch, and then we'll figure out what our path forward is going to be," SpaceX's Dan Huot said during the company's launch webcast today.

It didn't take long for SpaceX to narrow in on the root cause and address it.

"To be confident of a good flight, 2 Raptors will be removed & replaced. Most probable launch timing is early next week," company founder and CEO Elon Musk said this evening via X, the social media platform he owns.

Starship Flight 13 will fly from SpaceX's Starbase site in South Texas. Today's attempt occurred at 6:45 p.m. EDT (2245 GMT; 5:45 p.m. local time), right at the beginning of a 90-minute launch window.

Flight 13 will be the second test launch of Starship Version 3 (V3), an upgraded variant of the megarocket designed to get it up to operational status.

V3's first jaunt, Flight 12 on May 22, was mostly successful, but there were a few issues. For example, Starship's Super Heavy first stage didn't steer itself back for a controlled splashdown in the Gulf of Mexico as planned, and the Ship upper stage wasn't able to relight one of its Raptor engines in space.

Starship V3 will get a second chance on Flight 13, whose goals are similar to those of Flight 12: Get Super Heavy down on target in the Gulf and send Ship most of the way around the world, for a controlled splashdown of its own off the coast of Western Australia. (Ship pulled that off on Flight 12.)

There are a few new objectives, however.

The most notable is the payload suite flying on Flight 13 — 20 of SpaceX's next-gen Starlink V3 internet satellites. The company wants to build a constellation of 100,000 Starlink V3 spacecraft in low Earth orbit using Starship, and Flight 13 will mark the satellites' first-ever trip to space.

They won't stay up there, however; the spacecraft will be deployed on Ship's suborbital trajectory and will crash back to Earth after about 20 minutes, according to SpaceX.

Six of the 20 Starlinks going up on Flight 13 will be equipped with cameras, to image Ship's heat shield. SpaceX did this with a couple of V2 Starlinks on Flight 12 as well.

Editor's note: This story was updated at 9:38 p.m. ET on July 16 with information from an Elon Musk X post.

The aftermath of landslides have been found in images of Pluto's surface taken when the New Horizons mission flew past the dwarf planet in 2015. The landslides are evidence that the icy world is still active, albeit on geological timescales.

A team led by geologist Marco Emanuele Discenza pored over images taken by New Horizons' LORRI (Long-Range Reconnaissance Imager) instrument, which was capable of detecting surface features as small as 984 feet (300 meters). They found convincing evidence for six landslides in total that have taken place down the inner walls of three craters on the western edge of Sputnik Planitia, the heart-shaped feature that characterizes Pluto's appearance.

Previously, geological features left behind by landslides have been found on a host of bodies in the solar system, including Mars, Ceres in the asteroid belt, some of the icy moons of the gas giants, and even Pluto's companion, Charon. However, these are the first to be found on Pluto.

A landslide that fell 1.4 miles (2.2 kilometers) was identified in Pluto's Coughlin crater, close to a secondary crater on Coughlin's rim that may have triggered the landslide in the first place. Two further landslide features were seen in Giclas crater, and another three were spotted in a third, unnamed, crater.

The landslides were identifiable by their large debris aprons that spilled out onto the crater floors, the distance the landslide material travelled ranging being between 6.3 and 9 miles (10.1 and 14.5 km). Some of these debris aprons appeared bumpy, as if they contain large boulders of solid ice, while the areas around the source of the landslides feature well-defined, concave-shaped cliffs where material has broken away and tumbled down the craters' steep walls.

The great lengths that the debris rolled means that Pluto's landslides are among the most mobile in the solar system, a product of low gravity and low-friction icy rubble. The largest of the debris aprons covers 50 square miles (130 square kilometers), which would be large enough to bury a small city or a large town.

Landslides are important processes in shaping planetary surfaces, enabling the transport of material across great distances. The trigger for Pluto's landslides, however, is not yet clear. While the landslide in Coughlin appears to have been caused by a smaller impact nearby, the other five have less certain origins. One possibility is thermal stresses in the surface ice caused by the slight temperature changes that cause Pluto's volatile materials – among them molecular nitrogen, carbon monoxide and methane – to periodically sublimate and then condense again. These temperature changes are the result of Pluto subtly heating up and cooling down as its elliptical orbit brings it slightly closer to the sun, crossing inside Neptune's orbit, and then moving farther away again.

There is also evidence for more landslides in other craters, but New Horizons' coverage of Pluto's surface was limited as it hurriedly flew past on July 4, 2015, and the imagery required to confirm these other landslides is lacking.

The findings were published in the journal Icarus.

This might be the closest we've gotten to finding a planet that could support life: Astronomers have detected an atmosphere around an Earth-like, rocky planet orbiting in the habitable zone around its star, a monumental first.

The rocky planet, called LHS 1140 b, is 48-light-years away from Earth and according to this new research, it has an atmosphere that contains helium. It is also the first rocky planet to have an atmosphere be detected directly. This is the first rocky planet to be found with an atmosphere that is also in the habitable zone, meaning it's at the right distance away from its star for liquid water to potentially exist on the planet. As we continue to search the cosmos for planets that can be considered "habitable," this planet checks more boxes than almost anything we've ever seen.

"We have actually detected directly the helium present in the atmosphere itself, and that's the first direct detection for any rocky exoplanet, which is really exciting … and then there's this added bonus that it's in the habitable zone, which is super exciting for astrobiology and habitability and searching for life," lead author Collin Cherubim, who recently earned his Ph.D. from Harvard University, told Space.com. "It feels kind of surreal."

What's this planet like?

Let's explore this planet and the system where it "lives."

This exoplanet, or planet outside of our solar system, was first discovered in 2017 by a team led by astronomer Jason Dittmann who is now a co-author on this new discovery.

"This planet was found like 10 years ago, and we're just now saying, okay, that's an atmosphere," Dittman told Space.com. "We're slowly narrowing the gap and checking these boxes … we're finding a planet that's rocky, a planet that's of the right temperature and now … it's like okay, we finally found one that has an atmosphere."

And being a rocky planet, "there's definitely a surface … it's made of rocks," Dittman said. What does the planet's surface look like? We can't say yet, but the researchers who found this planet's atmosphere think there's a good chance it could have water.

While it orbits a red dwarf star, which is smaller and cooler than the sun, it orbits closer than we do to our star, maintaining a temperature that keeps the planet in the "Goldilocks zone" where liquid water could exist on its surface.

"It probably also has a lot of water," Cherubim said. "If it has some amount of atmosphere that can provide a bit of a greenhouse effect, which we know that it does now … it will very likely be what we consider to be habitable conditions on Earth, and conditions that would likely support liquid water."

So is it Earth-like? While it's certainly not an Earth copy, this planet can be considered Earth-like in two main ways, Cherubim shared. One: its overall composition. The planet is rocky, likely with an iron core and (now we know) it has an atmosphere. And two: the planet's temperature is just right for liquid water, which is necessary for life at least as far as we understand it on our planet.

Finding an atmosphere

The discovery of the first exoplanet was confirmed just over 30 years ago. Since then, scientists have found over 6,000 exoplanets and counting. And while a few rocky planets have been found in their star's habitable zone, it wasn't until now that an atmosphere has been confirmed around a rocky planet in the habitable zone.

One reason why scientists have had a hard time finding such planets with atmospheres is their stars. LHS 1140 b orbits the most common type of star, a red dwarf, which is about one-third the size of our sun. This type of star remains active for a lot longer than stars like our sun. This activity means it releases bursts of extreme radiation like solar flares and coronal mass ejections. And typically, the extreme radiation around these stars totally strips the atmospheres from the planets orbiting them, so astronomers have wondered if planets orbiting these stars can have an atmosphere at all.

"This discovery is a big deal because it's showing that at least this rocky planet has retained an atmosphere over billions of years," Cherubim said. It's "a bona fide, robust way of saying yes, atmospheres can survive on rocky exoplanets."

It's possible that other gases beyond helium are in the planet's atmosphere, and it's possible that some of its atmosphere was previously stripped away by its star's radiation. But the red dwarf that this planet orbits is roughly 6 billion years old, a few billion years older than the age at which their extreme radiation activity begins calming down. So while some helium is still slowly escaping the planet's atmosphere over time, the team expects the planet to retain an atmosphere, Dittman shared. After all, even Earth's helium is slowly escaping our own atmosphere.

The proof is in the atmosphere

To prove that this planet has an atmosphere, the team started with a prediction that Cherubim made during graduate school. It all started with a theoretical model and a sneaking suspicion that there must be rocky exoplanets with atmospheres other than Earth.

"This came out of a very specific prediction from a planetary evolution model that I actually developed myself, from scratch, from first principles, for my Ph.D. as a theorist, and I made a very specific prediction about this planet," Cherubim said. "And then I went out and did a pretty unexpected, weird thing using this technique that's typically reserved for observing giant planets, and I used it for a rocky planet, which nobody has done before.

"And lo and behold, I made this measurement that was actually consistent with my prediction. And it was really nice to kind of close the whole loop of the scientific method."

The team took the theoretical model that Cherubim developed in graduate school and put it to the test using the Warm Infrared Echelle (WINERED) Spectrograph on the Magellan Observatory in Chile. And with their observations, they were able to see LHS 1140 b and another planet both transit, or pass in front of, their star in the same night. With this spectrographic data, they could identify the signatures of molecules in the atmospheres of these planets as they passed in front of the star. And while one planet yielded no results, this planet showed a direct, undeniable helium signature.

Are there aliens?

When looking at a planet that is rocky, has an atmosphere, and is in the habitable zone (meaning it could have liquid water), the question of life comes up quite quickly.

But the researchers don't have enough data to make that conjecture. "I'm not claiming this planet has life," Cherubim made clear. With further investigation, scientists could better understand what else might be in this planet's atmosphere, and they could confirm if it has water. Further observations might not be able to confirm habitability or identify any life on the planet, but they could at least help us to better understand planets like this.

With this being the first planet of its kind discovered, further exploration will help us to put the pieces together. But it is certainly a major step forward in the eternal human quest to answer the question: are we alone?

This work was described in a study published in the journal Science.

Starship is about to take to the skies on a bold new test flight of the world's most powerful rocket.

After several days of testing, SpaceX has stacked and readied its massive Starship rocket for its 13th test flight. The company tried to launch on Thursday (July 16), but that attempt was aborted at the last second. SpaceX is now targeting Thursday (July 23), during a 90-minute launch window that opens at 6:45 p.m. EDT (2245 GMT), from pad 2 at SpaceX's facility in Starbase, Texas.

Both stages had been in their respective Starbase hangars for final checkouts following successful engine tests. Booster 40, the Super Heavy first stage launching on Starship Flight 13, was returned to the pad on Wednesday (July 15). Ship 40, the mission's upper-stage spacecraft, was rolled from the hangar beginning on Wednesday evening. The rocket was stacked overnight, according to a SpaceX post on X, and now awaits prelaunch procedures ahead of the beginning of Flight 13's launch countdown.

Flight 13 will launch the second "Version 3" (V3) Starship, a new iteration featuring extensive design upgrades to help mature the rocket toward clearing the vehicle for official operation. Compared to its Version 2 predecessor, V3 is taller, carries more propellant, and has lost significant mass around its engine section due to upgraded avionics systems. V3 is also equipped with 33 of SpaceX's upgraded Raptor 3 engines on Super Heavy, and another six (three sea-level, three vacuum-optimized) Raptor 3s on Ship.

Starship is designed for full reusability, with both Super Heavy and Ship capable of returning to their launch site for landing and refurbishment, which means making sure there's enough fuel in the tank to make the journey back. One critical upgrade for Starship V3 involves the propellant transfer docking ports that have been added to Ship's dorsal side (opposite the heat-shield tiles on its belly, or ventral side). Ship uses the majority of its fuel getting to space and will therefore require propellant transfers from various refueling flights in order to fly beyond low Earth orbit.

NASA is eyeing the development progress of Starship very closely, with a vested interest in the spacecraft's yet-unproven ability to transfer and maintain the types of cryogenic fuels that power its Raptor 3s. NASA has contracted SpaceX to design a lunar lander version of Starship to return astronauts to the moon as a part of the agency's Artemis program, and effectively managing its onboard propellants is one of the requirements on NASA's checklist to certify the vehicle to fly with crews.

SpaceX plans to complete such a demonstration later this year in preparation for Artemis III, targeted for mid-to-late 2027, which will fly a crew of four aboard NASA's Orion spacecraft to dock with Ship in Earth orbit ahead of the program's first moon landing mission on Artemis IV in 2028. NASA contracted Blue Origin's Blue Moon spacecraft as an additional Artemis lander, which will also launch to Earth orbit for docking operations with Orion during Artemis III.

Starship's readiness to fly those future missions will largely be determined by the rocket's performance on Flight 13, and its subsequent test launches in the coming months. The launch aims to smooth over a few rough patches that the vehicle ran into during V3's debut on the mostly successful Flight 12, which occurred on May 22. Those hiccups included Super Heavy failing to steer itself back to Earth for a controlled splashdown and Ship not relighting one of its Raptor engines in space as planned.

If all goes according to plan on Flight 13, Super Heavy will perform a boostback burn and soft splashdown in the Gulf of Mexico. Ship will carry on with a suborbital trajectory, and is expected to release 20 Starlink V3 satellites — the first of the upgraded Starlinks to fly to space. Six of those spacecraft are equipped with cameras to inspect Ship's heat-shield tiles during flight. The satellites, though, will be on the same suborbital trajectory as Ship, and are expected to burn up during reentry through Earth's atmosphere. Ship is scheduled to perform a landing burn and soft splashdown of its own a little more than an hour after liftoff, and will meet a watery demise in the Indian Ocean.

Live coverage of Starship Flight 13 will begin about 30 minutes prior to liftoff, and can be streamed here on Space.com or directly on SpaceX's website and social media channels.

Editor's note: This story was updated at 1:15 p.m. ET on July 17 with the new target launch date of July 20, then again at 12:15 p.m. ET on July 20 with the new target date of July 23.

After cracking into the animation world with family-friendly animated features from the "Despicable Me " and "Minions" franchise, "The Lorax," and the musical menagerie of "Sing," Illumination is finally setting their sights on outer space with next year's "Not Alone."

"Not Alone" isn’t due to arrive in theaters until Apr. 16, 2027 but this sneak peek — accompanied by David Bowie's somber 1969 anthem "Space Oddity" — sets a sweet tone telling the lively tale of an introverted rocket mechanic name Joe, and Fran, his astro-botanist colleague who has engineered the planet's first plant-based rocket, when alien fugitives toss their lives into chaos.

Xenomorph monstrosities and spaceship laser battles can often dominate sci-fi, so it's great to see something different on the horizon, and while a space rom-com starring Timothée Chalamet and Selena Gomez wasn't on our bingo card, the trailer has us really hyped for this one.

It's a wholly original story that's a definite departure for Illumination, but one that could strongly connect with audiences via the project’s colorful Euro style and humor. Vocal duties include the talents of Timothée Chalamet, Selena Gomez, Brett Goldstein, Rob Brydon, Jamie Demetriou, Diane Morgan, Allison Janney, and Lamorne Morris.

"When Joe and Fran are brought together to prepare for the inaugural launch of this revolutionary rocket, there are immediate sparks, but neither is particularly adept at romance," states the official synopsis.

"Life becomes more complicated when three aliens—tiny, unruly, and adorable—take refuge in Joe's home. Dunk, Welly, and Shirm are on the interplanetary run from a zealous-yet-inept officer of the law named Zandro. The aliens determine that Fran’s rocket could provide their means of getting back home to safety."

The French animation factory recently launched an early trailer for this charming romantic comedy directed by Eric Guillon, Claire Dodgson, and Jonathan Del Val.

Guillon is an Illumination veteran whose career includes serving as lead designer for "Despicable Me" and "Minions," as well as co-directing "Despicable Me 3." Here he's joined by seasoned editor Claire Dodgson ("The Lorax," "Minions," Despicable Me 3," "Minions: The Rise of Gru") and Jonathan Del Val (co-director of "Minions: The Rise of Gru" and "The Secret Life of Pets 2").

This fun animated rom-com is produced by Illumination founder and CEO Chris Meledandri and executive produced by Joy Poirel, Richard Curtis, and David Distenfeld.

"Not Alone" rockets into theaters Apr. 16, 2027.

There may be an easier way to describe how black holes "leak" energy than the theory Stephen Hawking proposed — and the newly suggested process is similar to how we describe a boiling pot of water. This simple (well, relatively simple) description could be used to model black holes in many situations such as during their formation, mergers with other black holes, eventual evaporation and even explosive death.

In the 1970s, legendary theoretical physicist Stephen Hawking wrote a letter to the journal Nature entitled "Black hole explosions?" explaining how these objects may leak thermal radiation, evaporate and eventually implode at the end of their lives. This radiation eventually became known as Hawking radiation.

But in new research, scientists have suggested an alternative to Hawking radiation. It involves describing the increase in disorder, or entropy, of black holes. Boiling water, as an example, is also often described based on its increase in entropy. For black holes, this measure of entropy is connected to characteristics like spin and energy, which means it could be used to understand how these cosmic titans respond to different events.

"Hawking's laws of black hole mechanics provided a satisfying connection between extreme and ordinary physics and have been the paradigm for 50 years, but they have a serious limitation," team leader Abhay Ashtekar of the Eberly College of Science at Penn State University said in a statement. "They were formulated for black holes at equilibrium — or unchanging over time — but black holes are constantly changing; they form, merge, and eventually evaporate. We wanted to find a way to overcome this limitation and extend the laws to black holes that are out of equilibrium."

Black holes, Einstein and Hawking

To investigate the origins of black holes, one has to go back to history's most famous physicist (sorry Hawking, you're number two), Albert Einstein.

In 1915, Einstein revealed his theory of gravity, general relativity. One consequence of the equations underpinning that theory was the possibility of a singularity, a point at which the equations of general relativity go to infinity. This represents the heart of a black hole.

Another consequence of the general relativity equations is a region of space around this singularity at which gravity is so extreme that the escape velocity of the area increases to a value greater than the speed of light. That region is the light-trapping outer boundary of the black hole known as the event horizon, which prevents us from ever seeing the singularity at the heart of the black hole or receiving information from it. In fact, until Hawking's work in 1974, this is why it was proposed that nothing at all can escape a black hole.

"The laws of black hole mechanics came directly from Einstein's equations," team member Daniel E. Paraizo, a graduate student in physics at Penn State, said. "Because you cannot see into a black hole, it seemed that there could be an infinite number of ways to make a black hole, making their entropy infinite as well. They were also thought to only absorb energy and never radiate, so their temperature was zero."

However, the advent of Hawking radiation somewhat changed this paradigm. By suggesting that black holes actually radiate thermal energy, Hawking redefined them in such a way that suddenly the laws of thermodynamics could be applied to black holes.

"This changed the thinking about the thermodynamic properties of black holes from a sort of mathematical concept described by equations, to being more of a physical reality," Paraizo said. "This opened the door to finding analogies in black holes of entropy and temperature used in thermodynamics."

In Hawking's recipe for black holes, the area of the event horizon is proportional to its temperature and entropy, and is inversely proportional to its mass and its spin.

"There is a problem, though," team member Jonathan Shu, also from Penn State, said in the statement. "These analogies only really work for a black hole that is at equilibrium. In dynamic situations, event horizons can form and grow in what we call flat regions of space-time, where nothing is happening."

Shu added that a consequence of this is the properties of black holes cannot be determined just by the local physics of the black hole. Instead, determining the properties of black holes relies on the prediction of events that may or may not happen in the future.

"Therefore, the area of event horizons cannot be a measure of the physical entropy of dynamical black holes," Shu argues. "If we want to understand black holes that are growing, evaporating and merging, we need a viable alternative."

For the team, this meant replacing the event horizon of a black hole with something they call a "dynamical horizon," already used when scientists simulate black holes. Now, the first law of thermodynamics — which states the energy of a closed system cannot be created or destroyed but rather can only change forms — can be applied to black holes even when they are involved in dynamic acts. It also means black holes are subject to the second law of thermodynamics, which says the total entropy of an isolated system will always increase over time, during their birth, merger and death.

"This allows us to extend the first and second laws of thermodynamics to black holes that are not at equilibrium, thereby overcoming the limitations of the paradigm that has been used for over half a century," Ashtekar said. "We can apply these generalized laws to better understand evaporating black holes in quantum theory and black hole mergers."

The team's research was published in June in the journal Physical Review Letters.

On Aug. 12, I get to fulfil a lifelong ambition. I'll take a flight to Madrid and travel northwest to the city of Valladolid by rail, before striking out for Valoria la Buena — a charming town in central Spain with a population of less than 1,000.

There, I'll bear witness to one of the most spectacular naked eye shows that the solar system has to offer: a total solar eclipse. My first total solar eclipse.

Don't get me wrong. I've been obsessed with eclipses my entire life. I just haven't found myself in the right place at the right time to experience totality until now. 10-year-old me came pretty close during a deep partial eclipse in 1999, when I caught a fleeting glimpse of the moon's silhouette taking a bite out of the sun in the cloud-ridden skies over the United Kingdom.

Smash cut 20-something years later and I'm inexplicably the Skywatching Writer for Space.com, where one of the major perks of the job is being sent to report on eclipses. Things aligned quite nicely.

For the 2026 eclipse, I'll be joining a volunteer team from NASA's Dynamic Eclipse Broadcast (DEB) Initiative led by citizen scientist Charles Greenwald.

The DEB is a network of enthusiastic solar observers led by professional astronomers who use standardized telescopes and software to share inspiring eclipse imagery to the public, while also capturing valuable scientific data on the sun's disk and golden atmosphere.

It was Greenwald who scouted Valoria la Buena as a prime location to observe the eclipse. He's since been hard at work liaising with DEB initiative leadership to test software updates and troubleshoot other issues, while also travelling to Mexico to help train student members of the team ahead of their expedition to Spain. Two more eclipse enthusiasts are due to join the group once it arrives in Madrid, making it a wonderfully international affair.

Less than a month out, things are pretty settled, and a kind of nervous anticipation has taken hold. Flights and trains are booked, and I have a pair of Celestron EclipSmart 10x42 binoculars and the EclipSmart 3-Piece Solar Eclipse Observing and Imaging Kit, courtesy of Celestron. Also hats and an ungodly amount of suntan lotion. I'm bald after all, so the sun is my greatest natural predator.

Of course, preparations can only get you so far. Once we get to Valoria la Buena on Aug. 10 there'll still be important work to do. The first order of business for Charles and his DEB team will be to stake out a location with a clear line of sight to the west for their equipment. Totality will occur with the sun less than 10 degrees above the horizon — roughly the width of your clenched fist held at arm's length — so line of sight will be everything.

We'll also be at the mercy of the weather. Clouds could easily arrive to hide the cosmic show from view — especially with the eclipse so low on the horizon. The DEB team also has to find a spot with good connectivity, which will allow them to broadcast near-live images of our parent star for the public to enjoy and scientists to pore over.

All being well, myself, the DEB team and over 15 million others in the path of totality will bear witness to a heartstopping display of orbital mechanics that crescendos with the fleeting artificial night of totality, as the moon blocks the last sliver of the sun from view. Space.com's Skywatching Editor Daisy Dobrijevic will also be on hand to report on the total solar eclipse as it unfolds in the skies over Greenland.

We can't wait to share our experiences with you. Be sure to stick with Space.com to discover everything there is to know about the Aug. 12 total solar eclipse, along with details on how to watch it online, which will be published closer to the event!

You should also read our guide to safely observing the sun, to ensure that you're ready to enjoy the eclipse, and our roundup of the best solar viewing equipment available in 2026 if you're looking for safe, quality gear.

Editor's Note: Want to share your eclipse photography with Space.com's readers? Then please send your photos and comments, along with your name and location to spacephotos@space.com.

A laser star guide beams up from the Gemini South Observatory and into the Milky Way on Cerro Pachón, a mountain in central Chile.

What is it?

The Gemini South Observatory, located in Chile, is one of two Gemini Observatories with the other located in Hawaii (named Gemini North, or 'Alopeke) on the volcano Mauna Kea.

Each Gemini Observatory has a 26.6-foot (8.1-meter) telescope. On the same mountain in Chile sits the 13.4-foot (4.1-meter) SOAR telescope.

In this photograph captured by Petr Horálek, an audiovisual ambassador for the U.S. national center for ground-based, nighttime optical astronomy at NOIRLab (the National Optical-Infrared Astronomy Research Laboratory), it looks like Gemini South is about to be beamed up into the night sky.

However, there isn't some alien ship behind that laser beam. Instead, Gemini South is beaming up a laser guide star, or a powerful laser that creates the appearance of a fake star in the night sky. This fake star acts as a reference point, helping the telescope to calibrate and correct any light distortions.

Why is it incredible?

Even from just this photograph, which shows an observatory in action, it's clear why this mountain is a hotspot for astronomical observing.

These peaks are chosen for many reasons, including their altitude and how far they are from bright lights that could affect observations. But even in a regular photograph, Horálek was able to show the incredible beauty of the glow of the Milky Way's heart above the mountain range, with every color in the rainbow popping up in the gas and dust across our galaxy.

Even the framing of the shot draws you in, as the viewer feels almost pulled down the road toward the observatory and right up into the Milky Way.

Starship isn't the only SpaceX rocket flying today.

A Falcon 9 rocket launched from California's Vandenberg Space Force Base today (July 16), carrying 21 satellites for the U.S. military's advanced new "Tranche 1 Transport Layer" (T1TL) constellation to orbit.

Liftoff took place at 4:32 p.m. EDT (2032 GMT; 1:32 p.m. local California time).

SpaceX's Starship megarocket — the biggest and most powerful launch vehicle ever built — is slated to make its 13th test flight a few hours later. It will lift off from the company's Starbase site in South Texas during a 90-minute window that opens at 6:45 p.m. EDT (2245 GMT; 5:45 p.m. local Texas time).

SpaceX will stream that mission live, and Space.com will carry the feed. Coverage will begin about half an hour before launch.

Today's Falcon 9 flight helps assemble the T1TL, a network in low Earth orbit (LEO) that will be operated by the U.S. Space Force's Space Development Agency (SDA).

The T1TL "will provide global communications access and deliver persistent regional encrypted connectivity in support of warfighter missions around the globe," SDA officials wrote in a explainer.

The T1TL will eventually consist of 126 satellites, which will be built by York Space Systems, Lockheed Martin and Northrop Grumman. Sixty-three of the spacecraft have now launched to date, on three Falcon 9 launches from Vandenberg — one last September, another last October and today.

These 126 spacecraft will be part of a larger LEO network that the SDA calls the Proliferated Warfighter Space Architecture.

The PWSA is "a proliferated constellation of hundreds of optically linked small satellites, in low-Earth orbit (LEO), delivering capability at speed to the warfighter," SDA officials wrote in a Tranche 1 fact sheet.

"SDA leverages spiral development to deploy and proliferate new capability into a new generation of the PWSA every two years, called a 'tranche,' to continually increase capability used by the warfighter," they added.

Everything went according to plan today, at least during the mission's early stages. The Falcon 9's first stage came back to Earth about 8.5 minutes after liftoff for a landing in the Pacific Ocean, on the drone ship "Of Course I Still Love You." According to a SpaceX mission description, it was the fourth flight for this particular booster, which is designated 1103.

The Falcon 9's upper stage continued hauling the 21 satellites to LEO. We don't know when or exactly where they'll be deployed; the SpaceX mission description doesn't provide that information, and the company cut off its launch webcast shortly after booster landing at the request of the SDA.

Editor's note: This story was updated at 4:44 p.m. ET on July 16 with news of successful launch and booster landing.

Two major mysteries in science, the nature of dark matter and the possible existence of higher dimensions, could be linked, new research suggests. The team behind a new study proposes that dark matter may be so strange and ghost-like because it is in tune with a fifth dimension.

When scientists discuss "extra dimensions," they aren't talking about other universes in which another evil version of you exists (and with a beard). Instead, they refer to dimensions that could be "curled up" with reality alongside the standard four-dimensional spacetime, consisting of the three dimensions of space and one dimension of time.

While these extra dimensions remain highly speculative, they have become a hot topic, especially as string theory, the most popular extension to standard physics, relies upon the existence of at least 11 dimensions. Scientists are more sure that dark matter exists, but proving its existence still remains troubling because, despite its gravity literally holding galaxies together and outweighing ordinary matter by around five to one, it remains effectively invisible because it doesn't interact with light and it simply ghosts through ordinary matter.

"Understanding dark matter would represent a profound advance in humanity's knowledge of the cosmos and what it is made of," team member Yu-Dai Tsai of the University of Sheffield said in a statement.

"Our research gives physicists clear new targets in the search for dark matter, while connecting two of the biggest ideas in fundamental physics: the mystery of dark matter and the existence of hidden dimensions."

Dark photons play dark matter like a violin

Though the main idea is that dark matter may operate in the fifth dimension, this new research expands upon that concept with another theory. It suggests that dark matter exists with another inhabitant of the fifth dimension, a force-carrying particle called a "dark photon."

Standard photons are the constituent particles of electromagnetic radiation, or light; dark photons would be similar but for a hypothetical "dark force."

The team's new proposal would see the unique geometry of the fifth dimension causing the masses of dark matter particles to form an arrangement that gives rise to a "dark matter resonance." This is akin to the intense vibration of a musical instrument at certain notes.

"Dark matter resonance is already known to be a powerful idea, with the potential to change our understanding of how dark matter was produced in the early universe and how we search for it today," team member Yu-Dai Tsai of the University of Sheffield said in a statement. "But many previous resonant dark matter models have treated the resonance as an assumption. This work gives a possible deeper origin for it: the resonance may come directly from the geometry of hidden dimensions."

Tsai explained that while dark matter resonance is a phenomenon that has been explored before, the research conducted by this team differs because it suggests dark matter resonance is not a coincidence. Instead, the possible deeper origin for the resonance sees it emerge directly from the geometry of hidden dimensions. This would allow dark matter to interact strongly shortly after the Big Bang while allowing it to settle into its ghost-like inert existence today.

"This resonance can make dark matter interactions much stronger at crucial epochs in cosmic history, such as in the early universe," Tsai added. "Crucially, the model allows for these strong interactions in the past while still explaining why dark matter appears so inert and hard to detect today."

Of course, it is very early days for the team's theory, but it excitingly offers a way toward solving two of the universe's greatest mysteries.

The team's research was published in the Physical Review D.

SpaceX's Starship megarocket will take to the skies again on Thursday (July 23), and you can watch the thundering action live.

Starship, the biggest and most powerful rocket ever built, is scheduled to lift off from SpaceX's Starbase site in South Texas on Thursday during a 90-minute window that opens at 6:45 p.m. EDT (2245 GMT; 5:45 p.m. local Texas time). It will be Starship's 13th flight overall and its second mission of 2026. (SpaceX originally tried to launch Flight 13 on Thursday, July 16, but that attempt was aborted at the last second.)

You can watch Starship Flight 13 live here at Space.com, courtesy of SpaceX; coverage will begin about 30 minutes before liftoff. Follow our Starship live blog for updates and other news about the test flight.

A potentially revolutionary rocket

Starship consists of a first-stage booster called Super Heavy and an upper-stage vehicle known (somewhat confusingly) as Starship, or simply Ship. Both elements are made of stainless steel and are designed to be fully and rapidly reusable.

The stacked vehicle stands more than 400 feet (122 meters) tall and can carry more than 110 tons (100 metric tons) to Earth orbit. SpaceX thinks Starship's combination of power and reusability will revolutionize spaceflight, allowing humanity to settle the moon and Mars, among other bold exploration feats.

Starship debuted in April 2023 and has flown 11 more suborbital flights since, most recently on May 22. That Flight 12 test was the first mission for Starship Version 3 (V3), an advanced iteration of the megarocket that was many months in the making. (Flight 11, the last launch of Starship V2, lifted off in October 2025.)

Starship V3 will be the first operational variant of the vehicle. It will fly on NASA's Artemis III mission to Earth orbit in 2027, for example, and land the agency's Artemis IV astronauts on the moon a year later, if all goes to plan.

Starship V3 performed quite well during its launch debut in May. During Flight 12, Ship successfully deployed 22 payloads via its "PEZ dispenser" slit — 20 dummy versions of SpaceX's Starlink broadband satellites and two actual Starlinks equipped with imaging sensors — and came back to Earth in one piece, splashing down as planned off the coast of Western Australia.

There were a few hiccups, however. Super Heavy suffered engine issues during its return to Earth, for instance, and ended up crashing in the Gulf of Mexico rather than making a controlled splashdown there.

SpaceX will run it back on Flight 13, shooting mostly for the same objectives that Flight 12 targeted — with a few notable exceptions.

The plan for Starship Flight 13

Eventually, SpaceX plans to return both Super Heavy and Ship directly to the launch pad after liftoff, catching each with the "chopstick" arms attached to Starbase's two launch towers. (Starship will also fly from Florida and perhaps other places as well in the coming years; these future pads will have chopstick arms, too.) This strategy will allow each vehicle to fly multiple times per day, according to the company.

SpaceX has caught Super Heavy three times to date, but it's been a while; the last such snag came on Flight 8 in March 2025. And the company has never tried a chopsticks catch with Ship.

Those trends will continue on Flight 13. If all goes to plan, Super Heavy will steer its way to a controlled splashdown in the Gulf of Mexico (which the Trump administration has renamed the Gulf of America) about seven minutes after launch.

"The booster’s primary test objective will be executing a successful launch, ascent, stage separation, boostback burn and landing burn at an offshore landing point in the Gulf of America," SpaceX wrote in a Flight 13 mission description. "There have been several modifications to hardware and software to address issues seen on the previous flight."

Ship will again target a splashdown in the Indian Ocean off the coast of Western Australia, which will occur about 65 minutes after launch. And the vehicle will again deploy some objects into suborbital space — but here's where Flight 13 will break new ground.

Those objects will be 20 V3 Starlink satellites — next-gen versions of the broadband spacecraft, which will "greatly expand the network's capacity and user speeds," SpaceX wrote in the mission description.

Eventually, SpaceX wants to operate up to 100,000 V3 Starlinks in low Earth orbit — a bold plan, considering that the current megaconstellation, the largest such network ever assembled, contains "only" about 10,800 spacecraft.

The Starlink V3 plan will require thousands of launches — a load that's beyond even the capabilities of SpaceX's workhorse Falcon 9 rocket, which flew 165 times in 2025. (Adding to the difficulty: Starship V3 satellites are considerably heavier than their predecessors. Each one will apparently weigh around 4,400 pounds, or 2,000 kilograms.)

The 20 Starlink V3 satellites "will extend solar arrays and antennas and will attempt to connect with the larger Starlink constellation via high-capacity lasers," SpaceX wrote in the Flight 13 description. "The Starlink satellites will be on the same suborbital trajectory as Starship and are expected to demise upon reentry approximately 20 minutes after deployment."

Six of the 20 spacecraft are equipped with cameras, which they will use to scan and study Ship's heat-shield tiles. SpaceX wants to gather more data about the heat-shield system before it attempts to bring Ship back to the launch pad for a chopsticks catch.

And SpaceX won't just passively observe the heat shield during Flight 13; it will conduct some experiments as well.

For example, the shield "will have load-sensing tiles to take measurements as the vehicle experiences higher dynamic pressure on ascent than previous flights, putting added stress on the tile attachments in exchange for increased payload-to-orbit capability," the mission description reads.

So there will indeed be some new things to look out for during Flight 13. And watching the world's biggest and brawniest rocket lift off is a treat no matter what sort of mission it's flying, so be sure to tune in!

Editor's note: This story was updated at 4:10 a.m. ET on July 20 with the new target launch date of July 23.

NASA is picking up the pace on its Artemis III mission preparations, pressing forward on multiple fronts to assemble launch vehicle hardware and beginning routine simulations inside Artemis mission control.

The agency is "full steam ahead," according to a July 13 NASA update. Across Kennedy Space Center (KSC) in Florida, components of Artemis III's Space Launch System (SLS) rocket are coming together, undergoing tests and awaiting transportation for final integration ahead of next year's launch. NASA is targeting mid-to-late 2027 for Artemis III, which will launch four astronauts into low Earth orbit (LEO) aboard the Orion spacecraft. It will be the second crewed mission of NASA's Artemis program, which aims to establish a permanent human presence on the moon.

Artemis III will be a critical stepping stone in NASA's lunar landing architecture, despite the mission not actually flying to the moon. Instead, SLS will launch Orion and its four-person crew into LEO for rendezvous and docking operations with the program's two commercial lunar lander vehicles: SpaceX's Starship and Blue Origin's Blue Moon spacecraft.

With the completion of the massively successful Artemis II mission that flew astronauts around the moon in April and the second half of 2026 beginning to count down, NASA has shifted into full gear to complete assembly and testing of the hardware that will launch Artemis III.

Several components for the mission's SLS rocket have arrived in the Vehicle Assembly Building (VAB) at KSC. The SLS core stage was delivered at the end of April, and it was connected with the rocket's engine block section in May. The first two of the core stage's four RS-25 engines arrived in June and will be installed on the SLS engine block once the remaining two are delivered, after which NASA plans to begin integration with the mobile launch platform (MLP) and launch operations tests. A temporary weather cap was also delivered in June, which will protect the stage when NASA transports it to the launch pad for tests before the full vehicle is stacked.

The bottom segments of both SLS solid rocket boosters (SRBs) were delivered over the last week, and they have been mounted on the MLP, according to NASA's update. The upper SRB segments arrived at KSC via train in June and will undergo inspection and testing before the twin boosters are fully stacked.

Inside KSC's Neil Armstrong Operations and Checkout Building, the Artemis III Orion is making significant progress — engineers have now finished installation of the spacecraft's heat shield.

Artemis III will be the first Orion mission to use an upgraded heat shield, featuring design improvements gleaned from analysis of unexpected wear on the heat shield flown on Artemis I. Orion's service module is also currently inside the Operations and Checkout Building and recently completed acoustic testing. Both the service module and Orion capsule are now being prepared for joining and eventual transportation to the VAB for stacking.

On the personnel side of things, Artemis III team members at KSC have begun monthly launch simulation tests to hone procedures for SLS propellant loading, terminal count operations (the final 10 minutes prior to liftoff) and launch day operations. Those tests will continue regularly leading up to Artemis III's launch next year, according to NASA.

As teams across NASA are busy readying all the pieces for Artemis III, others are looking ahead to the program's first lunar landing, planned for Artemis IV. That mission, scheduled for late 2028, will deliver a crew of astronauts to the surface of the moon for the first time since 1972. The SLS that will get them there is also coming together piece by piece.

The liquid oxygen (LOX) tank for the Artemis IV SLS core stage was recently relocated within NASA's Michoud Assembly Facility in New Orleans, positioning the tank for testing as it enters its next phase of production.

Rocket Lab has completed a major qualification test for its formidable Archimedes engine, which will power the company's next-gen Neutron launch vehicle.

As Rocket Lab continues with regular launches of its workhorse small-lift Electron rocket, development of Neutron has carried on in the background, progressing toward a possible debut later this year. The company recently completed a full-duration burn of a second-stage Archimedes, paving the way for integration with Neutron in the coming months.

The burn took place at Rocket Lab's Archimedes Test Complex, housed at NASA’s Stennis Space Center in Mississippi. The full-duration test aimed to simulate flight-like requirements and lasted just under 5.5 minutes. "What a thing of beauty," the company said in a July 13 social media post announcing the success, calling it a "critical preparation for Neutron's first flight."

Neutron is equipped with eight Archimedes engines on its first stage, which together provide nearly 1.5 million pounds of thrust at liftoff. The output of each is comparable to that of each Merlin 1D engine, which powers the first stage of SpaceX's Falcon 9 rocket. Like the Falcon 9, Neutron is also designed for partial reusability: Its first stage will be capable of returning for landing back at its launch site or on droneship vehicles stationed at sea.

The vehicle's second stage, however, is unique compared to other rockets. Conventional launch vehicles secure their payloads inside protective fairings that fall away from the rocket completely once damaging aerodynamic forces disappear in the vacuum of space. But Neutron's fairing halves separate like a clam shell. Rocket Lab has dubbed the system the "Hungry Hippo," after the popular children's game.

Neutron's fairings are also unique in the way they house the rocket's second stage, which emerges from the open fairing jaws to provide its payload a final push into orbit. A single vacuum-optimized Archimedes (AVac) powers Neutron's second stage. It features an engine bell that stretches about eight feet (2.5 meters) taller than the rocket's first-stage engines and produces 1.2 times the thrust of its first-stage counterparts in a vacuum.

For the recent engine test, Rocket Lab installed a shorter sea-level variant skirt on the AVac to compensate for its grounded altitude, which can expose the full-length nozzle to "flow separation and instability," the company's post said. "Stub skirts are used to anchor our engineers' analysis for how the engine will perform with the full nozzle in vacuum conditions."

Rocket Lab had targeted late 2025 for Neutron's debut but pushed that date to the first half of 2026 as last calendar year was approaching its end with the rocket far from being ready for launch. Neutron's timeline suffered another blow in January, when the main stage tank ruptured during a pressure test taking place at the company's Wallops, Virginia, launch facility.

Setbacks aside, Rocket Lab founder and CEO Peter Beck has repeatedly voiced his stance that the Neutron team is focused on reaching orbit when the vehicle is ready, not meeting an arbitrary target date.

America and Hollywood might feel like the natural home of sci-fi, but Britain has quite the science fiction pedigree of its own.

Doctor Who is obviously our great nation's most famous sci-fi export, standing tall amongst the other giants of the genre, but it's far from our only contribution. From television to literature, there is a history of some truly great and groundbreaking science fiction coming from this loose collection of islands.

So, make yourself a nice cup of tea and have a seat while we break down the UK’s 10 best science fiction shows of all time (in no particular order).

1. Doctor Who

Release date: November 23, 1963 | Seasons: 41 | Cast: William Hartnell, Patrick Troughton, Jon Pertwee, Tom Baker, Peter Davison, Colin Baker, Sylvester McCoy, Paul McGann, Christopher Eccleston, David Tennant, Matt Smith, Peter Capaldi, Jodie Whittaker, Ncuti Gatwa (& many more)

Doctor Who might not be the juggernaut that it once was, but it is one of the longest-running science fiction shows in the world. It's been going (on and off) since 1963, and it has always had something important to teach its audience.

From the off, it was a show championing scientific curiosity, kindness, and openness, though the stern tones and prickly demeanour of William Hartnell have since given way to a minimum of 14 different actors playing the same role.

While there’s certainly a difference between the original run of television serials and the typically self-contained format of the modern incarnation, the sheer wealth of different stories available means you can find something for everyone.

2. The Quatermass Experiment

Release date: July 18, 1953 | Seasons: 4 | Cast: Reginald Tate, Wilfrid Brambell, Katie Johnson

From Doctor Who to one of its contemporaries, or rather, the show that inspired it. The Quatermass Experiment was a set of four different sci-fi serials, each containing 6 episodes, that debuted in 1953, a full decade before Who hit our screens.

The Quatermass Experiment is a striking piece of television, partially because it was really the first of its kind, because it was squarely aimed at adults. Before this, most sci-fi TV was aimed at kids, while silver screen efforts focused on schlocky B-movie-style effects, such as those seen in “The Day the Earth Stood Still”.

Humanity's first rocket launch to space goes awry when it returns to Earth with two crew members missing, and the one remaining astronaut is gravely ill. Professor Quatermass and his team are left struggling to unravel the mystery of what happened to the crew.

While only the first two episodes managed to survive the original live broadcast, the serial still went on to have a huge impact on science fiction. It was one of the first sci-fi shows with mass appeal, and the trio of follow-up serials kept Bernard Quatermass as an icon of pop culture all the way into the 70s, with a variety of Hammer Horror adaptations to bring the character to new audiences.

3. Blake’s 7

Release date: January 2, 1978 | Seasons: 4 | Cast: Gareth Thomas, Michael Keating, Sally Knyvette, Paul Darrow

And now for something completely different: Blake 7, aka one of the grittiest and most depressing space shows that Britain ever produced.

Blake’s 7 tells the story of Roj Blake, a political dissident working against the totalitarian Federation controlling Earth and its colonies. On his way to a lifetime of false imprisonment, Blake manages to escape and capture a powerful alien vessel, which he then crews with another 5 people and 1 computer, to work together to overthrow the federation.

While most sci-fi of the time was chipper and optimistic about our future, Blake’s 7 was a sci-fi show that explored themes of political dissidence, cynicism, and freedom fighting. It’s a show about a small group fighting a much more powerful enemy, and frankly, it goes to some very, very dark places. When the phrase “mass-murder” has to be bandied around more than once, you know you've left happy-go-lucky behind.

It has an incredibly dour feeling most of the way through, and the ending does nothing to change that vibe. Dark tone aside, Blake’s 7 is the sort of sci-fi show that we just don’t see anymore.

4. The Prisoner

Release date: September 29, 1967 | Seasons: 1 | Cast: Patrick McGoohan, Angelo Muscat, Peter Swanwick, Denis Shaw, Fenella Fielding

If you’re a British sci-fi fan of a certain vintage, then you should already be familiar with The Prisoner.

Filmed (mostly) in Portmeirion, the show has some of the most iconic visuals in sci-fi history, despite only being a single self-contained series. From the giant evil balloon, known as Rover, to the beautiful houses of Portmeirion itself, The Prisoner is an incredibly visually striking show.

It follows the plot of a British secret agent who becomes frustrated with his position and resigns. While preparing for a trip, he is rendered unconscious using knockout gas and awakes to find himself inside a perfect recreation of his own home, but this one is located in a mysterious settlement known as The Village.

The plot goes to some wild places from there, but the story is deeply rooted in the societal fear that was surrounding the ongoing counter-cultural movements of the day. Individualism is pitted against collectivism throughout the show, and it’s a testament to the writing that neither ideal is shown to be the obvious right choice by the end.

5. Red Dwarf

Release date: February 15, 1988 | Seasons: 12 | Cast: Chris Barrie, Craig Charles, Danny John-Jules, Robert Llewellyn, Norman Lovett

If you’re into Space and British Comedy but you’ve not watched Red Dwarf yet, then what the smeg have you been doing?

This space sitcom follows the adventures of mega-slob Dave Lister, his neurotic, hologramatic bunk-mate Rimmer, their evolved Cat (of the same name), and square-headed mechanoid Kryten. Each episode sees the crew dealing with various sci-fi calamities, from emotion-sucking monsters and time travel shenanigans to being stuck on a frozen asteroid, as they make their way through a harsh galaxy.

The show packs some of the funniest moments in British TV history, especially during the first 5 series or so. They parody every sci-fi concept known to humanity, balancing straight comedy, horror, and drama. You'll get introspective looks at what it means to be human alongside ridiculous situations where Lister gets turned into a 6-inch-tall RoboCop rip-off.

It's also deeply rooted in the British working-class culture of the time, which means plenty of time for curry, beer, banter, and slobbing around the place.

6. Hyperdrive

Release date: January 11, 2006 | Seasons: 2 | Cast: Nick Frost, Kevin Eldon, Miranda Hart, Stephen Evans

In a similar vein to Red Dwarf, but nowhere near as popular, Hyperdrive is a Nick Frost-led sci-fi sitcom from 2006. It tells the tale of a British spaceship, the HMS Camden Lock, in its attempts to serve the national interest in an ever-evolving galaxy.

Starring British comedy favourites such as Kevin Eldon and Miranda Hart, Hyperdrive is a very silly show that ended up more like a workplace sitcom in space rather than the next Red Dwarf.

What saves Hyperdrive is the dry humour and the slightly insane set and character design. The series is replete with a baffling array of alien races, almost all of which are basically humans with varying levels of prosthetic facial makeup or zany outfits. Some of these guys are obvious parodies of alien races from classic shows, but they’re all thoroughly weird and worth the price of admission on their own.

7. The Hitchhiker’s Guide to the Galaxy

Release date: January 5, 1981 | Seasons: 1 | Cast: Peter Jones, Simon Jones, David Dixon, Mark Wing-Davey, Sandra Dickinson

If you’re more familiar with the movie adaptation or the original radio show, then you might have missed out on the slightly more obscure The Hitchhiker’s Guide to the Galaxy TV series. A decent amount of the radio cast reprise their roles in this single season of British TV, and much like the radio show, the production was ground-breaking for its time.

The show is a ramshackle blend of production techniques, using everything from model shots, classical animation, and even a fair few instances of matte painting to show the truly impossible on a grand scale.

As a result, the TV show has its own surreal vibe that isn’t always found in other versions, and it can get surprisingly grimy and dark when it needs to. Plus, if you get the DVD version, there’s an added joke where every so often it’ll pretend to have an ‘infinite improbability drive’ issue and stop working.

8. Black Mirror

Release date: December 4, 2011 | Seasons: 7 | Cast: Basically everyone

Any talk about British sci-fi cannot fail to mention Charlie Brooker’s seminal science fiction Netflix series that was so popular it damn-near became a phenomenon.

If you’ve somehow missed out on the show so far, it’s a sci-fi anthology series where each episode tells a self-contained story, usually about an element of modern-day society. This ‘reflecting society’ element is why it’s called ‘Black Mirror’, as it could be said the show is holding up a ‘black mirror’ to society.

Black Mirror mostly works in the realm of speculative fiction, but several episodes have a more contemporary, real-world setting. The bulk of the show, though, deals with the pitfalls of technology, modern consumer culture, and the modern media landscape, certainly realms more than familiar to science fiction.

9. Life on Mars

Release date: January 9, 2006 | Seasons: 2 | Cast: John Simm, Philip Glenister, Liz White, Dean Andrews, Marshall Lancaster

While it might not be what you immediately think of when it comes to sci-fi, Life on Mars is a fantastic show that straddles the space between speculative science fiction and crime drama, though it’s closer to ‘A Stir of Echoes’ rather than ‘Childhood’s End’.

The show tells the story of Sam Tyler, a modern-day police officer who hits his head and wakes up in the 1970s. While trying to figure out what’s going on, Sam has to deal with the realities of life and policing in the UK in the early 70s, something that’s shockingly entertaining to watch him attempt to juggle.

The real draw of the show is the mystery. Throughout the runtime, you’re never really sure if he has travelled back in time or if he’s either dead or in a coma. Even when you start to think that the show is giving you answers, you’ll soon find the rug pulled out from under you, and the want to finally learn what is happening will keep you coming back.

10. Utopia

Release date: January 15, 2013 | Seasons: 2 | Cast: Alexandra Roach, Nathan Stewart-Jarrett, Paul Higgins, Fiona O'Shaughnessy, Adeel Akhtar

The final entry on the list is a bit more of an obscure one. Back in 2014, Channel 4 put out Utopia, a sci-fi conspiracy thriller with a comedic bent to it.

Utopia follows a group of nerds who discover a comic has been predicting historic events and accidentally unmask a shadowy conspiracy. While the show was unceremoniously ended after only two series, and on something of a cliffhanger, it offers something that is dark, gritty, humorous, and horrific in equal measure.

Utopia doesn’t shy away from the violence inherent in telling a dystopian story. In fact, the level of violence can be a bit much at times, which is part of the reason some audiences shied away from it. But, if you can stomach it, Utopia is some of the most thrilling British sci-fi ever produced.

More sci-fi TV

That’s it for our list of excellent British Sci-Fi Shows, but if you enjoyed the list, you might want to check out our list of upcoming sci-fi shows. If the big screen is more your speed, we also have a list of upcoming sci-fi movies.

A space rock exploded through a bedroom ceiling in New Jersey, and scientists have now traced its origins to a strange, briny asteroid once visited by a NASA mission.

Two years ago on July 16, 2024 in the middle of the afternoon, a sonic boom shook New York City as a fireball streaked through the sky. The culprit? A rock the size of a heavy airline bag weighing roughly 110 pounds (50 kilograms). The meteorite hurtled over the east coast before crash-landing in a house in Hillsborough, New Jersey where the homeowner found it, reeking of sulfur. In studying this meteorite, scientists think that it could have come from the surface of an asteroid where liquid saltwater could have rested, possibly providing clues to life's origins on Earth.

"In a way, you can think of it as smelling the origins of life's atmosphere," lead author and meteor astronomer Peter Jenniskens of the SETI Institute and NASA’s Ames Research Center, told Space.com.

Despite its sulfuric stench, in a stroke of absolute luck, this meteorite crashed into the right house. After traveling through our atmosphere and heating up, searing through the sky and then crashing through a roof and then a bedroom ceiling, the meteorite broke apart into pieces. The homeowner not only sprung into action to collect these pieces of space rock into jars, they did so with gloves, protecting the rocks and keeping them remarkably well-preserved.

"He had the wherewithal to put on gloves and take out jars," Jenniskens said. "And for this type of meteorite, carbonaceous chondroits, it's very important because they just suck in every moisture you can think [of]." So if he would've handled the rocks with his bare hands, oils or moisture from his hands could have completely contaminated the rock, which is common in found meteorites. The homeowner also thought to call the American Meteor Society very quickly after recovering the rocks, making these samples unusually pristine.

Of course, some of the rocks were found to have some fiberglass and even carpet remnants on them after crashing through the roof of a house, Jenniskens said. But the integrity of the meteorites was still incredibly well-preserved for scientific investigation.

What did they find in these space rocks?

Once the rock fragments were collected, they were brought in for analysis led by co-author Mike Zolensky, a meteoriticist at NASA's Johnson Space Center. And they found the now-dubbed "Hillsborough meteorite" to be full of organic compounds created through chemical reactions with minerals also present in the rock as well as amino acids. They also found that some parts of the rocks were more altered by water than others.

They classified the meteorite as a CM1/2 carbonaceous chondrite, which are primitive meteorites that formed in the early solar system. CM2 meteorites typically come from parent asteroids that haven't been significantly altered by water while CM1 typically comes from asteroids with water. The Hillsborough meteorite doesn't fit neatly into either category, with some pieces of the rock altered by salty water.

This provided evidence that its parent asteroid must have had water, leading them to further classify this rock as a CM1/2, a category between 1 and 2. This is only the second meteorite of this type observed on Earth.

"Thanks to the homeowner’s quick reaction, these are the most pristine CM1/2 meteorites we know of," Jenniskens said in a statement.

They also found small, salty fragments inside the meteorite, leading the researchers to conclude that this rock may have come from a near-surface area of its parent asteroid, where liquid water evaporated and salt accumulated. A salty, briny asteroid.

This salty brine on the rock's parent asteroid could be an important piece to study, as researchers think that such a brine could ignite the chemical reactions between organic molecules and minerals that could create life. Some theories suggest that life on Earth began thanks to minerals and molecules deposited by crashing meteorites, and further study of such a well-preserved piece of a briny asteroid could help to put those pieces together.

And while the team doesn't know the full story behind the organic compounds and amino acids found in this rock, early analysis suggests that the amino acids present formed on the rock's parent asteroid with the help of chemical reactions in this briny environment.

Another major finding came from information from even before the crash. Thanks to reports from members of the public and footage from cameras (even doorbell cameras) across the eastern U.S., experts led by Jenniskens were able to piece together the trajectory of the object. Doppler weather radar at Newark Airport even helped to put the pieces together, detecting a long trail of pebbles stretching from Staten Island to New Jersey falling from the rock as it fell apart and out of the sky. This combined intel provided experts with the object's speed, and the direction from which it came.

In piecing together the rocks' trajectory, "we can say where they came from in the asteroid belt," Jenniskens said. "This one seemed to have come out of the inner asteroid belt."

In fact, he added that this meteorite's parent asteroid likely came from an area of the asteroid belt already observed in a flyby by NASA's Lucy mission, which is exploring the asteroids of the solar system. Could it be possible that Lucy observed the same bit of rock that ended up in a bedroom in New Jersey?

Jenniskens added that "If you hear about a meteorite fall in your area, please check your dash cams and video cameras and security ring [cameras], and even your cell phones." Who knows, you might have even accidentally captured footage that helps researchers to better understand a mysterious rock from space.

And if you live in the greater New York City area and want to get a closer look at this space rock, some of the meteorite fragments will be on display, curated at the American Museum of Natural History.

This work was described in a study published in the journal Science Advances.