<?xml version='1.0' encoding='UTF-8'?><rss xmlns:atom="http://www.w3.org/2005/Atom" xmlns:openSearch="http://a9.com/-/spec/opensearchrss/1.0/" xmlns:blogger="http://schemas.google.com/blogger/2008" xmlns:georss="http://www.georss.org/georss" xmlns:gd="http://schemas.google.com/g/2005" xmlns:thr="http://purl.org/syndication/thread/1.0" version="2.0"><channel><atom:id>tag:blogger.com,1999:blog-4133783924183725468</atom:id><lastBuildDate>Mon, 07 Oct 2024 05:00:00 +0000</lastBuildDate><category>Astronomia</category><category>Astronomy</category><category>Astronáutica</category><category>Boletim informativo</category><category>Tecnologia</category><category>Astronomy; Newsletter</category><category>Newsletter</category><category>Efemérides</category><category>Diversos</category><category>CÉU DO MÊS</category><category>Meteorologia</category><category>ASTEROIDES</category><category>COMETAS</category><category>Meio ambiente</category><category>Eclipse</category><category>Fotos</category><category>METEOROS</category><category>Previsão do Tempo</category><category>Eventos</category><category>OBSERVATÓRIO ASTRONÔMICO MONOCEROS</category><category>Personalidades</category><category>Cultura</category><category>ALERTA METEOROLÓGICO</category><category>Chuvas de METEOROS</category><category>Aviso Meteorológico</category><category>RadioKosmos</category><category>ARTHUR C. CLARKE</category><category>Destaques do Mês</category><category>Geologia</category><category>Imagem do Satélite GOES</category><category>Photos</category><category>Além Paraíba-MG</category><category>Personagens da nossa Astronomia</category><category>ARQUEOLOGIA</category><category>Brasil</category><category>CURSOS</category><category>Cursos e Palestras</category><category>ESTAÇÕES DO ANO</category><category>HISTORIA</category><category>as</category><category>astrofisica</category><category>Comet Pan-STARRS</category><category>Cultura e Humanismo</category><category>Equinócio de OUTONO</category><category>Fim do mundo em 21 dezembro 2012</category><category>GALILEU GALILEI</category><category>HEMISFÉRIO SUL</category><category>Johannes Michael Antonius Polman (Pe.Jorge Polman)</category><category>MARCOMEDE RANGEL NUNES</category><category>PLANETAS DO MÊS</category><category>PREVISÃO DE RESSACA</category><category>Professor Rubens de Azevedo</category><category>Região SUDESTE</category><category>Romildo Póvoa Faria</category><category>datas</category><category>tec</category><title>ASTRONOMICANDO - Boletim de Notícias do Observatório Monoceros</title><description>Espaço destinado à divulgação de notícias e artigos de Astronomia e Ciências Afins, bem como pesquisas realizadas em nossa instituição, efemérides, fotografias, entre outros.</description><link>http://astronomicando.blogspot.com/</link><managingEditor>noreply@blogger.com (Lucimary Vargas - Observatório Monoceros/Planetário Além Paraíba-MG)</managingEditor><generator>Blogger</generator><openSearch:totalResults>3096</openSearch:totalResults><openSearch:startIndex>1</openSearch:startIndex><openSearch:itemsPerPage>25</openSearch:itemsPerPage><item><guid isPermaLink="false">tag:blogger.com,1999:blog-4133783924183725468.post-143568198982630940</guid><pubDate>Mon, 06 Jan 2020 16:23:00 +0000</pubDate><atom:updated>2020-01-06T13:23:51.216-03:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">Astronomia</category><title>Betelgeuse, a gigante vermelha de Órion</title><description>&lt;div style=&quot;text-align: center;&quot;&gt;
Imagens da Constelação de Órion com destaque para Betelgueuse&lt;/div&gt;
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fonte:Internet&lt;/div&gt;
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&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjaUMJzHRDvgSMywNyFYJxyx4olKwk4MByGQDaZVQRGwwQa54fJ5iS8rS-Bg7wI9tz6ynDYX4i-m_nGlUYVFsGQT8K7JQ6yXRm745nTLbJ4wXxh8_nV5FrADZ7evD-XSjanBatCXckCVpG2/s1600/betelgeuse2.jpg&quot; imageanchor=&quot;1&quot; style=&quot;margin-left: 1em; margin-right: 1em;&quot;&gt;&lt;img border=&quot;0&quot; data-original-height=&quot;217&quot; data-original-width=&quot;232&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjaUMJzHRDvgSMywNyFYJxyx4olKwk4MByGQDaZVQRGwwQa54fJ5iS8rS-Bg7wI9tz6ynDYX4i-m_nGlUYVFsGQT8K7JQ6yXRm745nTLbJ4wXxh8_nV5FrADZ7evD-XSjanBatCXckCVpG2/s1600/betelgeuse2.jpg&quot; /&gt;&lt;/a&gt;&lt;/div&gt;
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&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhw82OlVc2BtVw1PnayPkGOveLCEMRY8TvffRxJvt2XrvhEjECsvrApWLkY52VKgc5EqvnOltG8sgT99ykV1lBCePkTv7E3DBq-RazQtwkP1WcjgOyqj2-5m0TE8uTpTwIw-Vp6MZCz6d8F/s1600/betelgeuse3.jpg&quot; imageanchor=&quot;1&quot; style=&quot;margin-left: 1em; margin-right: 1em;&quot;&gt;&lt;img border=&quot;0&quot; data-original-height=&quot;200&quot; data-original-width=&quot;252&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhw82OlVc2BtVw1PnayPkGOveLCEMRY8TvffRxJvt2XrvhEjECsvrApWLkY52VKgc5EqvnOltG8sgT99ykV1lBCePkTv7E3DBq-RazQtwkP1WcjgOyqj2-5m0TE8uTpTwIw-Vp6MZCz6d8F/s1600/betelgeuse3.jpg&quot; /&gt;&lt;/a&gt;&lt;/div&gt;
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http://feeds.feedburner.com/astronomicando-BoletimDeNoticias-ObservatorioMonoceros&lt;/div&gt;</description><link>http://astronomicando.blogspot.com/2020/01/betelgeuse-gigante-vermelha-de-orion.html</link><author>noreply@blogger.com (Leila Ossola)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhExxpukRl9UUuPrjGfCO9nrXK-Z-ikLLC7gyhfcsDKwUsy4YhmlLMtHo4-pkR-SZ-egqBmXQK-5bZGfKO2nq6RBn_bz25yW_wpEjrZTcFNtKJNmSus7Qfp-w__HuZAkvN4hlygio0RB3p4/s72-c/betelgeuse1.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-4133783924183725468.post-8415043016223153580</guid><pubDate>Mon, 06 Jan 2020 16:13:00 +0000</pubDate><atom:updated>2020-01-06T13:13:58.881-03:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">Astronomia</category><title>O APAGÃO DE BETELGEUSE</title><description>www.spacetoday.com..br&lt;br /&gt;
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&lt;img height=&quot;183&quot; src=&quot;https://spacetoday.com.br/wp-content/uploads/2020/01/OrionTrees123019Westlake1024-1024x475.jpg&quot; width=&quot;400&quot; /&gt;&lt;/div&gt;
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A constelação de Orion, é uma das constelações mais facilmente reconhecidas no céu, embora aqui no hemisfério sul ela esteja de cabeça para baixo e identificar a figura do caçador não é algo fácil, ela é a constelação que tem as 3 marias. A foto acima, foi feita no hemisfério norte, e mostra Orion de pé, ou quase deitada como queira, e foi feita no dia 30 de Dezembro de 2019, na floresta perto de Newnan, Georgia, EUA. Na constelação de Orion fica uma das estrelas mais conhecidas do céu, a super gigante vermelha Betelgeuse, que para nós aqui na Terra tem um brilho amarelado e fica localizada no ombro do caçador. Na imagem acima ela está à esquerda do centro. Mas, nos últimos meses do ano de 2019, a estrela não consegue mais rivalizar com a estrela Rigel, uma super gigante azul que fica no pé do caçador. De fato, os observadores ao redor de todo o planeta podem acompanhar agora o apagão de Betelgeuse. Seu brilho caiu mais da metade nos meses finais de 2019. Betelgeuse é conhecida por ser uma estrela variável, que muda seu brilho em múltiplos ciclos com períodos curtos de centenas de dias até longos que dura muitos anos. Atualmente, a estrela está perto do seu ponto mais apagado desde que as medidas fotométricas começaram no ano de 1926, o que provavelmente se deve em parte a uma coincidência do mínimo dos ciclos curtos e longos. Beetelgeuse é também reconhecida como uma estrela super gigante vermelha que irá terminar a sua vida numa explosão de supernova. Quando isso vai acontecer, ninguém sabe, mas fiquem tranquilos que estamos a cerca de 640 anos-luz de distância de Betelgeuse numa distância segura e essa explosão não vai nos afetar.&lt;/div&gt;
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Vou repetir não esqueça de ouvir o podcast Horizonte de Eventos, onde explico os detalhes sobre o que está acontecendo com a estrela Betelgeuse.&lt;/div&gt;
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&lt;a href=&quot;https://open.spotify.com/episode/0lGrqG9yoWkpOqUlNIKGL0?si=_hw-Br2gQsSBhVy7froyPA&amp;amp;t=0&quot;&gt;ouça aqui&lt;/a&gt;&lt;/div&gt;
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Fonte:&lt;/div&gt;
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&lt;a href=&quot;https://apod.nasa.gov/apod/ap200102.html&quot; style=&quot;color: #313131; list-style: none; text-decoration-line: none;&quot;&gt;https://apod.nasa.gov/apod/ap200102.html&lt;/a&gt;&lt;/div&gt;
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O link para você ouvir esse episódio:&lt;/div&gt;
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http://feeds.feedburner.com/astronomicando-BoletimDeNoticias-ObservatorioMonoceros&lt;/div&gt;</description><link>http://astronomicando.blogspot.com/2020/01/o-apagao-de-betelgeuse.html</link><author>noreply@blogger.com (Leila Ossola)</author><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-4133783924183725468.post-470962058402072947</guid><pubDate>Sat, 04 Jan 2020 14:25:00 +0000</pubDate><atom:updated>2020-01-04T11:25:23.318-03:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">Astronomia</category><title>Quatro fenômenos astronômicos imperdíveis em 2020</title><description>Da BBC News&lt;br /&gt;
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&lt;figure class=&quot;media-landscape has-caption full-width lead&quot; style=&quot;background-color: #111111; border: 0px; clear: both; color: #404040; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 14px; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; line-height: inherit; margin: 32px -54.2188px 0px 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;image-and-copyright-container&quot; style=&quot;border: 0px; color: inherit; display: block; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 0px; position: relative; vertical-align: baseline;&quot;&gt;&lt;img alt=&quot;Eclipse de sol&quot; class=&quot;js-image-replace&quot; data-highest-encountered-width=&quot;660&quot; height=&quot;549&quot; src=&quot;https://ichef.bbci.co.uk/news/660/cpsprodpb/FF7D/production/_110250456_gettyimages-1153326068.jpg&quot; style=&quot;border: 0px; color: #bdbdbd; display: block; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: auto; letter-spacing: inherit; line-height: inherit; margin: 0px; max-width: 100%; padding: 0px; user-select: none; vertical-align: baseline; width: 645.781px;&quot; width=&quot;976&quot; /&gt;&lt;span class=&quot;off-screen&quot; style=&quot;border: 0px !important; clip: rect(1px, 1px, 1px, 1px); color: inherit; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 1px !important; letter-spacing: inherit; line-height: inherit; margin: 0px; overflow: hidden; padding: 0px !important; position: absolute !important; vertical-align: baseline; width: 1px !important;&quot;&gt;Direito de imagem&lt;/span&gt;&lt;span class=&quot;story-image-copyright&quot; style=&quot;background: rgba(0, 0, 0, 0.6); border: 0px; bottom: 0px; color: #ececec; font-family: inherit; font-size: 0.75rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: 0.25px; line-height: 1.33333; margin: 0px; padding: 3px 8px 1px; position: absolute; right: 0px; text-transform: uppercase; vertical-align: baseline;&quot;&gt;GETTY IMAGES&lt;/span&gt;&lt;/span&gt;&lt;figcaption class=&quot;media-caption&quot; style=&quot;border: 0px; color: inherit; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 16px; vertical-align: baseline; visibility: visible;&quot;&gt;&lt;span class=&quot;off-screen&quot; style=&quot;border: 0px !important; clip: rect(1px, 1px, 1px, 1px); color: inherit; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 1px !important; letter-spacing: inherit; line-height: inherit; margin: 0px; overflow: hidden; padding: 0px !important; position: absolute !important; vertical-align: baseline; width: 1px !important;&quot;&gt;Image caption&lt;/span&gt;&lt;span class=&quot;media-caption__text&quot; style=&quot;border: 0px; color: #ececec; display: block; font-family: inherit; font-size: 0.8125rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: 1.23077; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Em dezembro de 2020, haverá um eclipse solar total que poderá ser visto no sul do planeta&lt;/span&gt;&lt;/figcaption&gt;&lt;/figure&gt;&lt;div class=&quot;story-body__introduction&quot; style=&quot;background-color: white; border: 0px; color: #404040; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 1rem; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; font-weight: bold; line-height: 1.375; margin-top: 28px; padding: 0px; vertical-align: baseline;&quot;&gt;
O ano que passou nos trouxe muitas coisas em assuntos astrofísicos.&lt;/div&gt;
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Tivemos eventos como o grande eclipse solar em julho, que pôde ser visto na Argentina, Chile e Uruguai.&lt;/div&gt;
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Os cientistas também nos deram boas notícias sobre o espaço: a publicação, por exemplo, da primeira imagem de um buraco negro, apresentada por um grupo de cientistas da Nasa, graças à colaboração de especialistas em computação como Katie Bouman.&lt;/div&gt;
&lt;div style=&quot;background-color: white; border: 0px; color: #404040; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 1rem; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; line-height: 1.375; margin-top: 18px; padding: 0px; vertical-align: baseline;&quot;&gt;
E o que haverá no próximo ano?&lt;/div&gt;
&lt;ul class=&quot;story-body__unordered-list&quot; style=&quot;background-color: white; border: 0px; color: #404040; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 14px; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; line-height: inherit; list-style: none; margin: 18px 0px 0px; padding: 0px; vertical-align: baseline;&quot;&gt;
&lt;li class=&quot;story-body__list-item&quot; style=&quot;border: 0px; color: inherit; font-family: inherit; font-size: 1rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: 1.375; list-style: outside square; margin: 18px 0px 0px 20px; padding: 0px 0px 0px 4px; vertical-align: baseline;&quot;&gt;&lt;a class=&quot;story-body__link&quot; href=&quot;https://www.bbc.com/portuguese/geral-50931240&quot; style=&quot;-webkit-tap-highlight-color: rgba(17, 103, 168, 0.3); border-bottom-color: rgb(220, 220, 220); border-bottom-style: solid; border-image: initial; border-left-color: initial; border-left-style: initial; border-right-color: initial; border-right-style: initial; border-top-color: initial; border-top-style: initial; border-width: 0px 0px 1px; color: #222222; font-family: inherit; font-size: 1rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: bold; letter-spacing: inherit; line-height: 1.375; margin: 0px; padding: 0px; text-decoration-line: none; vertical-align: baseline;&quot;&gt;Por que ‘constelação de satélites’ preocupa astrônomos que investigam mistérios do Universo&lt;/a&gt;&lt;/li&gt;
&lt;li class=&quot;story-body__list-item&quot; style=&quot;border: 0px; color: inherit; font-family: inherit; font-size: 1rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: 1.375; list-style: outside square; margin: 18px 0px 0px 20px; padding: 0px 0px 0px 4px; vertical-align: baseline;&quot;&gt;&lt;a class=&quot;story-body__link&quot; href=&quot;https://www.bbc.com/portuguese/internacional-50933695&quot; style=&quot;-webkit-tap-highlight-color: rgba(17, 103, 168, 0.3); border-bottom-color: rgb(220, 220, 220); border-bottom-style: solid; border-image: initial; border-left-color: initial; border-left-style: initial; border-right-color: initial; border-right-style: initial; border-top-color: initial; border-top-style: initial; border-width: 0px 0px 1px; color: #222222; font-family: inherit; font-size: 1rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: bold; letter-spacing: inherit; line-height: 1.375; margin: 0px; padding: 0px; text-decoration-line: none; vertical-align: baseline;&quot;&gt;As maiores notícias sobre ciência e meio ambiente de 2019&lt;/a&gt;&lt;/li&gt;
&lt;li class=&quot;story-body__list-item&quot; style=&quot;border: 0px; color: inherit; font-family: inherit; font-size: 1rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: 1.375; list-style: outside square; margin: 18px 0px 0px 20px; padding: 0px 0px 0px 4px; vertical-align: baseline;&quot;&gt;&lt;a class=&quot;story-body__link&quot; href=&quot;https://www.bbc.com/portuguese/internacional-50879328&quot; style=&quot;-webkit-tap-highlight-color: rgba(17, 103, 168, 0.3); border-bottom-color: rgb(220, 220, 220); border-bottom-style: solid; border-image: initial; border-left-color: initial; border-left-style: initial; border-right-color: initial; border-right-style: initial; border-top-color: initial; border-top-style: initial; border-width: 0px 0px 1px; color: #222222; font-family: inherit; font-size: 1rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: bold; letter-spacing: inherit; line-height: 1.375; margin: 0px; padding: 0px; text-decoration-line: none; vertical-align: baseline;&quot;&gt;O que é a Força Espacial, novo braço militar lançando por Trump&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
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Graças a avanços tecnológicos, a observação espacial foi facilitada e fenômenos astrofísicos podem ser previstos com mais precisão.&lt;/div&gt;
&lt;div style=&quot;background-color: white; border: 0px; color: #404040; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 1rem; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; line-height: 1.375; margin-top: 18px; padding: 0px; vertical-align: baseline;&quot;&gt;
&lt;br /&gt;&lt;/div&gt;
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&lt;a href=&quot;https://www.bbc.com/portuguese/geral-50967383&quot;&gt;https://www.bbc.com/portuguese/geral-50967383&lt;/a&gt;&lt;/div&gt;
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http://feeds.feedburner.com/astronomicando-BoletimDeNoticias-ObservatorioMonoceros&lt;/div&gt;</description><link>http://astronomicando.blogspot.com/2020/01/quatro-fenomenos-astronomicos.html</link><author>noreply@blogger.com (Leila Ossola)</author><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-4133783924183725468.post-9003622643987748293</guid><pubDate>Mon, 21 Oct 2019 22:21:00 +0000</pubDate><atom:updated>2019-10-21T19:21:07.019-03:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">Chuvas de METEOROS</category><title>Restos do Halley: veja como ver chuva de meteoros... </title><description>&lt;div style=&quot;text-align: justify;&quot;&gt;
&lt;span style=&quot;color: #4d4d4d; font-family: Barlow, sans-serif, Arial; font-size: 16px;&quot;&gt;O ápice dos meteoros acontecerá quando a constelação de Orion —também conhecida popularmente pelo nome de &quot;As Três Marias&quot;— estiver com uma altura considerável no céu e a Lua já estiver se pondo, por volta das 4h. Para quem vai observar os meteoros, o efeito é o de um aumento de &quot;estrelas cadentes&quot; que parecem vir de um ponto único no céu —no caso, a constelação de Orion. As &quot;estrelas&quot; na verdade são os detritos do cometa, que adquirem uma luz incandescente ao atravessar a atmosfera terrestre. Em todas as regiões do país será possível observar a chuva de meteoros, mas, por conta do radiante —a origem geométrica dos corpos e o ponto no céu de onde parecem se originar—&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;color: #4d4d4d; font-family: Barlow, sans-serif, Arial; font-size: 16px;&quot;&gt;- Veja mais em https://www.uol.com.br/tilt/noticias/redacao/2019/10/20/veja-como-acompanhar-chuva-de-meteoros-orionideos-que-ocorre-nesta-segunda.htm?fbclid=IwAR0ejG1JZF6Mbd4DxDTOVxU5NXgKPLXC8HflRF5mOhzFHnBVd80QXhnoxnc&amp;amp;cmpid=copiaecola&lt;/span&gt;&lt;/div&gt;
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http://feeds.feedburner.com/astronomicando-BoletimDeNoticias-ObservatorioMonoceros&lt;/div&gt;</description><link>http://astronomicando.blogspot.com/2019/10/restos-do-halley-veja-como-ver-chuva-de.html</link><author>noreply@blogger.com (Leila Ossola)</author><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-4133783924183725468.post-1626479593457695187</guid><pubDate>Mon, 21 Oct 2019 22:14:00 +0000</pubDate><atom:updated>2019-10-21T19:14:32.051-03:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">Astronáutica</category><title></title><description>UOL&lt;br /&gt;
&lt;div class=&quot;p-author&quot; style=&quot;-webkit-font-smoothing: antialiased; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); box-sizing: border-box; font-family: Barlow, sans-serif, Arial; font-size: 16px; font-weight: 600; letter-spacing: -0.2px; line-height: 22px; list-style: none; padding: 0px;&quot;&gt;
Rodrigo Trindade&lt;/div&gt;
&lt;div class=&quot;p-author-local&quot; style=&quot;-webkit-font-smoothing: antialiased; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); box-sizing: border-box; display: table; font-family: Barlow, sans-serif, Arial; font-size: 16px; font-weight: 600; letter-spacing: -0.2px; line-height: 22px; list-style: none; padding: 0px; text-align: justify;&quot;&gt;
De Tilt, em São Paulo&lt;/div&gt;
&lt;div class=&quot;p-author time&quot; ia-date-publish=&quot;2019-10-18T09:18:28-03:00&quot; style=&quot;-webkit-font-smoothing: antialiased; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); box-sizing: border-box; color: rgba(0, 0, 0, 0.5); font-family: Barlow, sans-serif, Arial; font-size: 15px; letter-spacing: -0.2px; line-height: 22px; list-style: none; padding: 0px; pointer-events: none; text-align: justify; word-spacing: 4px;&quot;&gt;
18/10/2019 09h18&lt;/div&gt;
&lt;div class=&quot;p-author time&quot; ia-date-publish=&quot;2019-10-18T09:18:28-03:00&quot; style=&quot;-webkit-font-smoothing: antialiased; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); box-sizing: border-box; color: rgba(0, 0, 0, 0.5); font-family: Barlow, sans-serif, Arial; font-size: 15px; letter-spacing: -0.2px; line-height: 22px; list-style: none; padding: 0px; pointer-events: none; text-align: justify; word-spacing: 4px;&quot;&gt;
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&lt;div class=&quot;p-author time&quot; ia-date-publish=&quot;2019-10-18T09:18:28-03:00&quot; style=&quot;-webkit-font-smoothing: antialiased; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); box-sizing: border-box; color: rgba(0, 0, 0, 0.5); font-family: Barlow, sans-serif, Arial; font-size: 15px; letter-spacing: -0.2px; line-height: 22px; list-style: none; padding: 0px; pointer-events: none; text-align: justify; word-spacing: 4px;&quot;&gt;
&lt;span style=&quot;color: #4d4d4d; font-size: 16px; letter-spacing: normal; word-spacing: 0px;&quot;&gt;Elas conseguiram. Quase sete meses depois de uma gafe da Nasa (Agência Espacial Americana), as astronautas Jessica Meir e Christina Koch protagonizaram nesta sexta-feira (18) a histórica primeira caminhada espacial 100% feminina. A missão começou perto das 8h40 (horário de Brasília) e foi transmitida pela Nasa ao vivo, durando até as 15h55. Meir e Koch deixaram a Estação Espacial Internacional (ISS) para trocar uma peça que quebrou no último fim de semana....&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;p-author time&quot; ia-date-publish=&quot;2019-10-18T09:18:28-03:00&quot; style=&quot;-webkit-font-smoothing: antialiased; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); box-sizing: border-box; color: rgba(0, 0, 0, 0.5); font-family: Barlow, sans-serif, Arial; font-size: 15px; letter-spacing: -0.2px; line-height: 22px; list-style: none; padding: 0px; pointer-events: none; text-align: justify; word-spacing: 4px;&quot;&gt;
&lt;span style=&quot;color: #4d4d4d; font-size: 16px; letter-spacing: normal; word-spacing: 0px;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;p-author time&quot; ia-date-publish=&quot;2019-10-18T09:18:28-03:00&quot; style=&quot;-webkit-font-smoothing: antialiased; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); box-sizing: border-box; color: rgba(0, 0, 0, 0.5); font-family: Barlow, sans-serif, Arial; font-size: 15px; letter-spacing: -0.2px; line-height: 22px; list-style: none; padding: 0px; pointer-events: none; text-align: justify; word-spacing: 4px;&quot;&gt;
&lt;span style=&quot;color: #4d4d4d; font-size: 16px; letter-spacing: normal; word-spacing: 0px;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;p-author time&quot; ia-date-publish=&quot;2019-10-18T09:18:28-03:00&quot; style=&quot;-webkit-font-smoothing: antialiased; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); box-sizing: border-box; color: rgba(0, 0, 0, 0.5); font-family: Barlow, sans-serif, Arial; font-size: 15px; letter-spacing: -0.2px; line-height: 22px; list-style: none; padding: 0px; pointer-events: none; text-align: justify; word-spacing: 4px;&quot;&gt;
&lt;span style=&quot;color: #4d4d4d; font-size: 16px; letter-spacing: normal; text-align: start; word-spacing: 0px;&quot;&gt;Chamada de unidade de carga/descarga de bateria, a peça faz parte do sistema de energia da estação, mas a falha não comprometia a atuação da tripulação que trabalha na órbita terrestre. A missão durou sete horas e 17 minutos. Foi a primeira caminhada de Jessica Meir e a quarta de Koch, que já acumulou 27 horas e 48 minutos no espaço ao longo de quatro saídas da ISS para missões. O feito realizado pela dupla era esperado para o final de março, quando Koch e outra astronauta, Anne McClain —que retornou à Terra em junho— sairiam da ISS juntas.&amp;nbsp;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;p-author time&quot; ia-date-publish=&quot;2019-10-18T09:18:28-03:00&quot; style=&quot;-webkit-font-smoothing: antialiased; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); box-sizing: border-box; color: rgba(0, 0, 0, 0.5); font-family: Barlow, sans-serif, Arial; font-size: 15px; letter-spacing: -0.2px; line-height: 22px; list-style: none; padding: 0px; pointer-events: none; text-align: justify; word-spacing: 4px;&quot;&gt;
&lt;span style=&quot;color: #4d4d4d; font-size: 16px; letter-spacing: normal; text-align: start; word-spacing: 0px;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;p-author time&quot; ia-date-publish=&quot;2019-10-18T09:18:28-03:00&quot; style=&quot;-webkit-font-smoothing: antialiased; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); box-sizing: border-box; color: rgba(0, 0, 0, 0.5); font-family: Barlow, sans-serif, Arial; font-size: 15px; letter-spacing: -0.2px; line-height: 22px; list-style: none; padding: 0px; pointer-events: none; text-align: justify; word-spacing: 4px;&quot;&gt;
&lt;span style=&quot;color: #4d4d4d; font-size: 16px; letter-spacing: normal; text-align: start; word-spacing: 0px;&quot;&gt;&amp;nbsp;- Veja mais em https://www.uol.com.br/tilt/noticias/redacao/2019/10/18/jessica-meir-e-christina-koch-a-primeira-dupla-feminina-caminhar-no-espaco.htm?cmpid=copiaecola&amp;amp;fbclid=IwAR2oiRFRzga2q8kYL13uAg8CkhAe_gAs-pPpHrqdwCS-ajstbtRDUiz2UnY&amp;amp;cmpid=copiaecola&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;p-author time&quot; ia-date-publish=&quot;2019-10-18T09:18:28-03:00&quot; style=&quot;-webkit-font-smoothing: antialiased; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); box-sizing: border-box; color: rgba(0, 0, 0, 0.5); font-family: Barlow, sans-serif, Arial; font-size: 15px; letter-spacing: -0.2px; line-height: 22px; list-style: none; padding: 0px; pointer-events: none; text-align: justify; word-spacing: 4px;&quot;&gt;
&lt;span style=&quot;color: #4d4d4d; font-size: 16px; letter-spacing: normal; word-spacing: 0px;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;p-author time&quot; ia-date-publish=&quot;2019-10-18T09:18:28-03:00&quot; style=&quot;-webkit-font-smoothing: antialiased; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); box-sizing: border-box; color: rgba(0, 0, 0, 0.5); font-family: Barlow, sans-serif, Arial; font-size: 15px; letter-spacing: -0.2px; line-height: 22px; list-style: none; padding: 0px; pointer-events: none; text-align: justify; word-spacing: 4px;&quot;&gt;
&lt;span style=&quot;color: #4d4d4d; font-size: 16px; letter-spacing: normal; word-spacing: 0px;&quot;&gt;&amp;nbsp;- Veja mais em https://www.uol.com.br/tilt/noticias/redacao/2019/10/18/jessica-meir-e-christina-koch-a-primeira-dupla-feminina-caminhar-no-espaco.htm?cmpid=copiaecola&amp;amp;fbclid=IwAR2oiRFRzga2q8kYL13uAg8CkhAe_gAs-pPpHrqdwCS-ajstbtRDUiz2UnY&amp;amp;cmpid=copiaecola&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;p-author time&quot; ia-date-publish=&quot;2019-10-18T09:18:28-03:00&quot; style=&quot;-webkit-font-smoothing: antialiased; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); box-sizing: border-box; color: rgba(0, 0, 0, 0.5); font-family: Barlow, sans-serif, Arial; font-size: 15px; letter-spacing: -0.2px; line-height: 22px; list-style: none; padding: 0px; pointer-events: none; text-align: justify; word-spacing: 4px;&quot;&gt;
&lt;span style=&quot;color: #4d4d4d; font-size: 16px; letter-spacing: normal; word-spacing: 0px;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/div&gt;
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http://feeds.feedburner.com/astronomicando-BoletimDeNoticias-ObservatorioMonoceros&lt;/div&gt;</description><link>http://astronomicando.blogspot.com/2019/10/uol-rodrigo-trindade-de-tilt-em-sao.html</link><author>noreply@blogger.com (Leila Ossola)</author><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-4133783924183725468.post-7939552223696374092</guid><pubDate>Tue, 16 Apr 2019 20:11:00 +0000</pubDate><atom:updated>2019-04-16T17:11:00.795-03:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">Astronomia</category><title>Como cientistas conseguiram proeza inédita de fotografar um buraco negro... </title><description>Da BBC&lt;br /&gt;
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&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg_e_0OK84XpfmEuPhYCSeWs8Ylh7TPt90oxKaUQp1Ilsl_hqgaJ38fMVUN-p67pQ5ygtq1aZ6LYQj-kHq0xnJABxtuoyvVPuFP_VMiQkmIgEiK2CYUGF-ybfkPF4UvlEJegOGSAE-dWqzB/s1600/buraconegro.jpg&quot; imageanchor=&quot;1&quot; style=&quot;margin-left: 1em; margin-right: 1em;&quot;&gt;&lt;img border=&quot;0&quot; data-original-height=&quot;506&quot; data-original-width=&quot;900&quot; height=&quot;178&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg_e_0OK84XpfmEuPhYCSeWs8Ylh7TPt90oxKaUQp1Ilsl_hqgaJ38fMVUN-p67pQ5ygtq1aZ6LYQj-kHq0xnJABxtuoyvVPuFP_VMiQkmIgEiK2CYUGF-ybfkPF4UvlEJegOGSAE-dWqzB/s320/buraconegro.jpg&quot; width=&quot;320&quot; /&gt;&lt;/a&gt;&lt;/div&gt;
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&lt;span style=&quot;color: #4d4d4d; font-family: UOLText, Arial, sans-serif; font-size: 18px;&quot;&gt;Astrônomos tiraram a primeira foto de um buraco negro no coração de uma galáxia distante. Ele foi descrito por cientistas como &quot;um monstro&quot;.&amp;nbsp;&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;color: #4d4d4d; font-family: UOLText, Arial, sans-serif; font-size: 18px;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;color: #4d4d4d; font-family: UOLText, Arial, sans-serif; font-size: 18px;&quot;&gt;É três milhões de vezes maior que a Terra e está na distante galáxia M87, a 55 milhões de anos-luz. Ainda assim, não foi fácil registrar as imagens. Foi necessário criar uma rede de oito telescópios em diferentes partes do mundo e cinco dias para registrar as primeiras imagens reais - até agora só havia ilustrações de buracos negros.&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;color: #4d4d4d; font-family: UOLText, Arial, sans-serif; font-size: 18px;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;color: #4d4d4d; font-family: UOLText, Arial, sans-serif; font-size: 18px;&quot;&gt;&amp;nbsp;Buracos negros são estrelas moribundas que entram em colapso dentro de si mesmas. A atração da gravidade dentro deles é tão forte que não deixa escapar luz e os fazem começar a sugar tudo que se aproxima, como...&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;color: #4d4d4d; font-family: UOLText, Arial, sans-serif; font-size: 18px;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;color: #4d4d4d; font-family: UOLText, Arial, sans-serif; font-size: 18px;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;color: #4d4d4d; font-family: UOLText, Arial, sans-serif; font-size: 18px;&quot;&gt;Veja mais em https://noticias.uol.com.br/ciencia/ultimas-noticias/bbc/2019/04/10/como-cientistas-conseguiram-proeza-inedita-de-fotografar-um-buraco-negro.htm?cmpid=copiaecola&lt;/span&gt;&lt;/div&gt;
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http://feeds.feedburner.com/astronomicando-BoletimDeNoticias-ObservatorioMonoceros&lt;/div&gt;</description><link>http://astronomicando.blogspot.com/2019/04/como-cientistas-conseguiram-proeza.html</link><author>noreply@blogger.com (Leila Ossola)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg_e_0OK84XpfmEuPhYCSeWs8Ylh7TPt90oxKaUQp1Ilsl_hqgaJ38fMVUN-p67pQ5ygtq1aZ6LYQj-kHq0xnJABxtuoyvVPuFP_VMiQkmIgEiK2CYUGF-ybfkPF4UvlEJegOGSAE-dWqzB/s72-c/buraconegro.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-4133783924183725468.post-1657130809124298808</guid><pubDate>Sat, 23 Jun 2018 13:31:00 +0000</pubDate><atom:updated>2018-06-23T10:31:15.736-03:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">Astronomia</category><title>Einstein tinha razão inclusive além da Via Láctea</title><description>&lt;span class=&quot;fuente&quot; style=&quot;background-color: white; box-sizing: border-box; color: #0040ff; font-family: &amp;quot;Open Sans&amp;quot;, Roboto, &amp;quot;Roboto Condensed&amp;quot;, Arial, Helvetica, Verdana, sans-serif; font-size: 12px; font-weight: 700;&quot;&gt;EFE&lt;/span&gt;&lt;span class=&quot;origen&quot; itemprop=&quot;dateline&quot; style=&quot;background-color: white; box-sizing: border-box; color: #1a1a1a; font-family: &amp;quot;Open Sans&amp;quot;, Roboto, &amp;quot;Roboto Condensed&amp;quot;, Arial, Helvetica, Verdana, sans-serif; font-size: 12px; font-weight: 700;&quot;&gt;Madri&lt;/span&gt;&lt;span class=&quot;fecha&quot; style=&quot;background-color: white; box-sizing: border-box; color: #333333; font-family: &amp;quot;Open Sans&amp;quot;, Roboto, &amp;quot;Roboto Condensed&amp;quot;, Arial, Helvetica, Verdana, sans-serif; font-size: 12px; font-weight: 700;&quot;&gt;&lt;time datetime=&quot;2018-06-22T17:08:28Z&quot; itemprop=&quot;dateModified&quot; style=&quot;box-sizing: border-box;&quot;&gt;22 jun 2018&lt;/time&gt;&lt;/span&gt;&lt;br /&gt;
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&lt;span class=&quot;fuente&quot; style=&quot;box-sizing: border-box; color: #0040ff;&quot;&gt;EFE&lt;/span&gt;&lt;span class=&quot;origen&quot; itemprop=&quot;dateline&quot; style=&quot;box-sizing: border-box; color: #1a1a1a;&quot;&gt;Madri&lt;/span&gt;&lt;span class=&quot;fecha&quot; style=&quot;box-sizing: border-box;&quot;&gt;22 jun 2018&lt;/span&gt;&lt;/div&gt;
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&lt;img alt=&quot;Retrato de Albert Einstein em uma exposição em foto de 2012. EFE/Beatriz Velardiez.&quot; itemprop=&quot;contentUrl url&quot; src=&quot;https://estaticos.efe.com/efecom/recursos2/imagen.aspx?lVW2oAh2vjMGVgLB8S7yukfIskzQARBvQ4TncnkXVSTX-P-2bAoG0sxzXPZPAk5l-P-2fU5UzjGylKWxGo926QsHUlUvrA-P-3d-P-3d&quot; style=&quot;border: 0px; box-sizing: border-box; clear: both; display: block; margin: 0px auto; vertical-align: top; width: 704px;&quot; /&gt;&lt;div itemprop=&quot;description name caption&quot; style=&quot;background-color: black; box-sizing: border-box; clear: both; color: white; font-size: 12px; margin-left: auto; margin-right: auto; padding: 5px; text-align: center; vertical-align: top; width: 704px;&quot;&gt;
Retrato de Albert Einstein em uma exposição em foto de 2012. EFE/Beatriz Velardiez.&lt;/div&gt;
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A Teoria Geral da Relatividade, formulada por Albert Einstein há mais de um século, demonstrou agora funcionar também em galáxias além da Via Láctea, informou o Observatório Austral Europeu (ESO) em comunicado.&lt;/div&gt;
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Uma equipe internacional de astrônomos combinou dados do telescópio espacial Hubble da Nasa com os do VLT (Very Large Telescope) do ESO no Chile e seus resultados mostram que a gravidade se comporta como Einstein previu na sua Teoria da Relatividade Geral em escala galáctica.&lt;/div&gt;
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Para o estudo foi usada a galáxia ESO 325-G004 que atua como uma forte lente gravitacional, distorcendo a luz que provém de uma galáxia distante que se encontra atrás dela e criando um Anel de Einstein ao redor do seu centro.&lt;/div&gt;
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Comparando a massa da ESO 325-G004 com a curvatura do espaço a seu redor, os astrônomos descobriram que a gravidade nestas escalas de distâncias astronômicas se comporta segundo o predito pela relatividade geral, o que &quot;descarta algumas teorias alternativas da gravidade&quot;, segundo a nota.&lt;/div&gt;
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Foram utilizados dados do VLT do Chile para medir quão rápido as estrelas se moviam do ESO 325-G004, o que permitiu inferir quanta massa deve haver na galáxia para manter as estrelas em órbita.&lt;/div&gt;
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Além disso graças ao Hubble observaram um anel de Einstein resultante da distorção exercida por ESO 325-G004 na luz procedente de uma galáxia distante.&lt;/div&gt;
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&quot;Observando o anel, os astrônomos puderam medir como a luz (e, portanto, o espaço-tempo), se desviam pela enorme massa da ESO 325-G004&quot;, detalhou a nota.&lt;/div&gt;
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A teoria da relatividade geral de Einstein prediz que os objetos deformam o espaço-tempo a seu redor, fazendo com que qualquer luz que passe perto seja desviada.&lt;/div&gt;
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O diretor de estudo Thomas Collet da britânica Universidade de Porstmouth disse que graças aos dados do VLT e do Hubble se mediram de duas formas diferentes a força da gravidade.&lt;/div&gt;
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&quot;O resultado é justamente o que prediz a relatividade geral com uma incerteza de apenas 9%. Esta é a prova mais precisa da relatividade geral fora da Via Láctea realizada até o momento. E utilizando apenas uma galáxia!&quot;, explicou Collet.&lt;/div&gt;
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A relatividade geral foi posta a toda prova com &quot;excelente precisão&quot; em escalas do Sistema Solar.&lt;/div&gt;
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No entanto, não haviam provas tão precisas em escalas astronômicas maiores. Provar as propriedades de longo alcance da gravidade é de vital importância para validar o modelo cosmológico atual.&lt;/div&gt;
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Estas descobertas, acrescenta o comunicado, podem ter grandes implicações para os modelos de gravidade alternativa à relatividade geral, que predizem que os efeitos da gravidade na curvatura do espaço-tempo &quot;dependem da escala&quot;.&lt;/div&gt;
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Assim a gravidade deveria se comportar de maneira diferente em escala de grandes distâncias astronômicas em relação às escalas menores do Sistema Solar.&lt;/div&gt;
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No entanto, Collett e sua equipe descobriram que é pouco provável que isto seja assim, a menos que estas diferenças só aconteçam em escalas de distâncias de mais de 6.000 anos luz.&lt;/div&gt;
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O professor Bob Nichol, da Universidade de Porstmouth e membro da equipe, afirmou, por sua vez, que &quot;é muito satisfatório utilizar os melhores telescópios do mundo com o objetivo de desafiar Einstein e averiguar, ao final, quanta razão ele tinha&quot;.&lt;/div&gt;
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Lo saranno di nuovo nel 2022, si avvicina &#39;Occhi su Saturno&#39;&lt;/h2&gt;
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&lt;time style=&quot;border: 0px; box-sizing: border-box; display: inline-block; font-family: inherit; font-size: 12px; font-stretch: inherit; font-variant: inherit; font-weight: inherit; line-height: 13px; margin: 5px 0px 0px; padding: 0px 7px 0px 0px; vertical-align: baseline;&quot;&gt;&lt;span style=&quot;border: 0px; box-sizing: border-box; display: inline-block; font-family: inherit; font-stretch: inherit; font-variant: inherit; font-weight: inherit; line-height: 14px; margin: 5px 0px 0px; padding: 0px 7px 0px 0px; vertical-align: baseline;&quot;&gt;22 giugno 2018&lt;/span&gt;&lt;span style=&quot;border: 0px; box-sizing: border-box; display: inline-block; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 5px 0px 0px; padding: 0px 7px 0px 0px; vertical-align: baseline;&quot;&gt;10:17&lt;/span&gt;&lt;/time&gt;&lt;/div&gt;
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&lt;img alt=&quot; Saturno e gli altri pianeti visibili nelle prime notti d&#39;estate (fonte: H. Raab, Flickr) © Ansa&quot; class=&quot;img-responsive&quot; src=&quot;http://www.ansa.it/webimages/ch_620x438/2018/6/21/03f297eed0cc053be627ff9f24aa34c6.jpg&quot; style=&quot;border: 0px; box-sizing: border-box; display: block; font: inherit; height: auto; margin: 0px 0px 1em; max-width: 100%; padding: 0px; vertical-align: middle; width: 630px;&quot; /&gt;&lt;span class=&quot;photo-green-ico&quot; style=&quot;background: url(&amp;quot;/canale_scienza_tecnica/img/ico_photo_60x60.png&amp;quot;) no-repeat; border: 0px; box-sizing: border-box; display: block; font: inherit; height: 60px; margin: 0px; overflow: hidden; padding: 0px; position: absolute; right: 12px; text-indent: 150%; top: 10px; vertical-align: baseline; white-space: nowrap; width: 60px;&quot;&gt;FOTO&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;border: 0px; box-sizing: border-box; display: table-cell; font-family: inherit; font-size: inherit; font-stretch: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; max-width: 320px; padding: 0px; vertical-align: middle;&quot;&gt;Saturno e gli altri pianeti visibili nelle prime notti d&#39;estate (fonte: H. Raab, Flickr) © ANSA/Ansa&lt;/span&gt;&lt;div class=&quot;link-gallery rf&quot; style=&quot;background: url(&amp;quot;/canale_scienza_tecnica/img/dot_4x4_green.png&amp;quot;) repeat-y; border: 0px; box-sizing: border-box; display: table-cell; float: right !important; font: inherit; height: 25px; margin: 8px 6px 0px 10px; padding: 0px 0px 0px 14px; vertical-align: middle; width: 110px;&quot;&gt;
&lt;a href=&quot;https://www.blogger.com/u/2/null&quot; style=&quot;background-color: transparent; border: 0px; box-sizing: border-box; color: #667769; display: block; font-family: inherit; font-size: 10px; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: 12px; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;plus&quot; style=&quot;border: 0px; box-sizing: border-box; color: #a9baad; float: right; font-size: 30px; font-stretch: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-weight: bold; line-height: 24px; margin: 0px 0px 0px 5px; padding: 0px; vertical-align: baseline; width: 20px;&quot;&gt;+&lt;/span&gt;CLICCA PER INGRANDIRE&lt;/a&gt;&lt;/div&gt;
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Il cielo saluta l&#39;estate &#39;chiamando a raccolta&#39;&amp;nbsp;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;tutti i pianeti&lt;/strong&gt;&amp;nbsp;del Sistema Solare&amp;nbsp;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;noti fin dall&#39;antichità&lt;/strong&gt;, da Mercurio a Saturno: sono&amp;nbsp;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;visibili tutti insieme&lt;/strong&gt;, in una&amp;nbsp;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;combinazione che non si ripeterà prima del 2022&lt;/strong&gt;. Fra tutti spicca&amp;nbsp;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Saturno&lt;/strong&gt;, con i suoi anelli, protagonista&amp;nbsp;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;dal 22 al 24 giugno&lt;/strong&gt;&amp;nbsp;della manifestazione&amp;nbsp;&lt;a href=&quot;http://www.occhisusaturno.it/&quot; style=&quot;background-color: transparent; border-bottom-color: rgb(151, 153, 154); border-bottom-style: dotted; border-image: initial; border-left-color: initial; border-left-style: initial; border-right-color: initial; border-right-style: initial; border-top-color: initial; border-top-style: initial; border-width: 0px 0px 1px; box-sizing: border-box; color: #178131; font: inherit; margin: 0px; padding: 0px; text-decoration-line: none; vertical-align: baseline;&quot;&gt;&quot;Occhi su Saturno&quot;&lt;/a&gt;, che prevede&amp;nbsp;&lt;a href=&quot;http://www.occhisusaturno.it/edizione-2018/&quot; style=&quot;background-color: transparent; border-bottom-color: rgb(151, 153, 154); border-bottom-style: dotted; border-image: initial; border-left-color: initial; border-left-style: initial; border-right-color: initial; border-right-style: initial; border-top-color: initial; border-top-style: initial; border-width: 0px 0px 1px; box-sizing: border-box; color: #178131; font: inherit; margin: 0px; padding: 0px; text-decoration-line: none; vertical-align: baseline;&quot;&gt;oltre cento eventi in tutta Italia&lt;/a&gt;, fra conferenze e serate di osservazione. A organizzarla, come ogni anno, è l&#39;associazione Stellaria di Perinaldo (Imperia), che dal 2012 celebra il pianeta degli anelli in onore dell&#39;astronomo italiano Gian Domenico Cassini.&lt;/div&gt;
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&lt;img alt=&quot;&quot; height=&quot;305&quot; src=&quot;http://www.ansa.it/webimages/large/2018/6/21/06d71d4561af2c15c5a84879c1168717.jpg&quot; style=&quot;border: 0px; box-sizing: border-box; font: inherit; margin: 0px; padding: 0px; vertical-align: middle;&quot; width=&quot;460&quot; /&gt;&lt;/div&gt;
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&lt;div style=&quot;color: #333333; font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit; text-align: justify;&quot;&gt;
&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&quot;Fino all&#39;inizio di luglio possiamo ammirare quello che per gli antichi era il confine del Sistema Solare, Saturno&quot;, ha detto Nicolò Conte, presidente dell&#39;associazione Stellaria di Perinaldo. &quot;Per ammirare di nuovo questo spettacolo nelle ore serali - ha aggiunto - bisognerà aspettare il 2022, ma i pianeti non si vedranno bene come adesso&quot;.&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;color: #333333; font-family: Arial, Helvetica, sans-serif;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/div&gt;
&lt;span style=&quot;color: #333333; font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&lt;div style=&quot;text-align: justify;&quot;&gt;
&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;Sono&amp;nbsp;&lt;/span&gt;&lt;span style=&quot;border: 0px; box-sizing: border-box; font: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;110&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;le località coinvolte in tutta Italia per la manifestazione &quot;Occhi su Saturno&quot;, con osservatori e planetari che apriranno le porte ad astrofili e appassionati. Saturno, infatti, proprio in questi giorni è nelle migliori condizioni di visibilità dell&#39;anno, con gli anelli che hanno un&#39;inclinazione favorevole all&#39;osservazione. &quot;Il motivo è che ci stiamo avvicinando all&#39;&lt;/span&gt;&lt;span style=&quot;border: 0px; box-sizing: border-box; font: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;opposizione&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;del&amp;nbsp;&lt;/span&gt;&lt;span style=&quot;border: 0px; box-sizing: border-box; font: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;27 giugno&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;, che vedrà Saturno, la Terra e il Sole allineati&quot;, ha spiegato Conte.&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;Si comincia subito dopo il tramonto, quando a partire da Ovest sarà possibile osservare i pianeti più vicini al Sole: Venere e Mercurio. A Sud, invece, la scena sarà dominata dal gigante gassoso del Sistema Solare: Giove. Intorno alle 23, sarà la volta del protagonista della serata, Saturno, che brillerà più basso sull&#39;orizzonte Sud-Est. Intorno a mezzanotte, infine, farà la sua comparsa in cielo anche Marte.&lt;/span&gt;&lt;/div&gt;
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&lt;time style=&quot;border: 0px; box-sizing: border-box; display: inline-block; font-family: inherit; font-size: 12px; font-stretch: inherit; font-variant: inherit; font-weight: inherit; line-height: 13px; margin: 5px 0px 0px; padding: 0px 7px 0px 0px; vertical-align: baseline;&quot;&gt;&lt;span style=&quot;border: 0px; box-sizing: border-box; display: inline-block; font-family: inherit; font-stretch: inherit; font-variant: inherit; font-weight: inherit; line-height: 14px; margin: 5px 0px 0px; padding: 0px 7px 0px 0px; vertical-align: baseline;&quot;&gt;23 giugno 2018&lt;/span&gt;&lt;span style=&quot;border: 0px; box-sizing: border-box; display: inline-block; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 5px 0px 0px; padding: 0px 7px 0px 0px; vertical-align: baseline;&quot;&gt;09:08&lt;/span&gt;&lt;/time&gt;&lt;/div&gt;
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&lt;img alt=&quot;Rappresentazione artistica della galassia ESO325-G004 utilizzata dal telescopio Hubble come una lente d&#39;ingrandimeno cosmica (fonte: NASA, ESA, Hubble Heritage Team (STScI / AURA) © Ansa&quot; class=&quot;img-responsive&quot; src=&quot;http://www.ansa.it/webimages/ch_620x438/2018/6/23/abd0bcf82c75ea515d64da4d3ac220b6.jpg&quot; style=&quot;border: 0px; box-sizing: border-box; display: block; font: inherit; height: auto; margin: 0px 0px 1em; max-width: 100%; padding: 0px; vertical-align: middle; width: 630px;&quot; /&gt;&lt;span class=&quot;photo-green-ico&quot; style=&quot;background: url(&amp;quot;/canale_scienza_tecnica/img/ico_photo_60x60.png&amp;quot;) no-repeat; border: 0px; box-sizing: border-box; display: block; font: inherit; height: 60px; margin: 0px; overflow: hidden; padding: 0px; position: absolute; right: 12px; text-indent: 150%; top: 10px; vertical-align: baseline; white-space: nowrap; width: 60px;&quot;&gt;FOTO&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;news-caption hidden-xs&quot; style=&quot;border: 0px; bottom: 0px; box-sizing: border-box; color: #595959; display: table; font-size: 11px; font-stretch: normal; font-variant-east-asian: normal; font-variant-numeric: normal; height: 43px; line-height: 13px; margin: 0px; min-width: 407px; padding: 0px 0px 0px 10px; position: absolute; vertical-align: baseline; width: 630px;&quot;&gt;
&lt;span style=&quot;border: 0px; box-sizing: border-box; display: table-cell; font-family: inherit; font-size: inherit; font-stretch: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; max-width: 320px; padding: 0px; vertical-align: middle;&quot;&gt;Rappresentazione artistica della galassia ESO325-G004 utilizzata dal telescopio Hubble come una lente d&#39;ingrandimeno cosmica (fonte: NASA, ESA, Hubble Heritage Team (STScI / AURA) © ANSA/Ansa&lt;/span&gt;&lt;div class=&quot;link-gallery rf&quot; style=&quot;background: url(&amp;quot;/canale_scienza_tecnica/img/dot_4x4_green.png&amp;quot;) repeat-y; border: 0px; box-sizing: border-box; display: table-cell; float: right !important; font: inherit; height: 25px; margin: 8px 6px 0px 10px; padding: 0px 0px 0px 14px; vertical-align: middle; width: 110px;&quot;&gt;
&lt;a href=&quot;https://www.blogger.com/u/2/null&quot; style=&quot;background-color: transparent; border: 0px; box-sizing: border-box; color: #667769; display: block; font-family: inherit; font-size: 10px; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: 12px; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;plus&quot; style=&quot;border: 0px; box-sizing: border-box; color: #a9baad; float: right; font-size: 30px; font-stretch: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-weight: bold; line-height: 24px; margin: 0px 0px 0px 5px; padding: 0px; vertical-align: baseline; width: 20px;&quot;&gt;+&lt;/span&gt;CLICCA PER INGRANDIRE&lt;/a&gt;&lt;/div&gt;
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&lt;div class=&quot;news-txt&quot; itemprop=&quot;articleBody&quot; style=&quot;border: 0px; box-sizing: border-box; clear: both; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;
&lt;div style=&quot;border: 0px; box-sizing: border-box; color: #333333; font: inherit; margin-bottom: 10px; padding: 0px; text-align: justify; vertical-align: baseline;&quot;&gt;
Una&amp;nbsp;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;conferma&lt;/strong&gt;&amp;nbsp;galattica per la&amp;nbsp;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Teoria Generale della Relatività&lt;/strong&gt;&amp;nbsp;di Einstein arriva dalle ultime osservazioni condotte dal telescopio spaziale della Nasa Hubble e dal Very Large Telescope (Vlt) dell&#39;Osservatorio Europeo Meridionale (Eso) in Cile. I dati, pubblicati sulla rivista Science, rafforzano inoltre l&#39;ipotesi dell&#39;esistenza dell&#39;enigmatica&amp;nbsp;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;energia oscura&lt;/strong&gt;che occuperebbe il 70% dell&#39;universo e la cui natura è ancora ignota.&lt;/div&gt;
&lt;div style=&quot;border: 0px; box-sizing: border-box; color: #333333; font: inherit; margin-bottom: 10px; padding: 0px; vertical-align: baseline;&quot;&gt;
&lt;img alt=&quot;&quot; height=&quot;332&quot; src=&quot;http://www.ansa.it/webimages/large/2018/6/23/5c8ce07afe253fa0418eafcd8794283e.jpg&quot; style=&quot;border: 0px; box-sizing: border-box; font: inherit; margin: 0px; padding: 0px; vertical-align: middle;&quot; width=&quot;460&quot; /&gt;&lt;/div&gt;
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&lt;span style=&quot;border: 0px; box-sizing: border-box; font: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;La lente gravitazionale ottenuta dalla galassie LRG 3-757, vista dal telescopio spaziale Hubble (fonte:ESA /Hubble &amp;amp; NASA)&lt;/span&gt;&lt;/div&gt;
&lt;div style=&quot;border: 0px; box-sizing: border-box; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; line-height: inherit; margin-bottom: 10px; padding: 0px; vertical-align: baseline;&quot;&gt;
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&lt;span style=&quot;color: #333333; font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&lt;div style=&quot;text-align: justify;&quot;&gt;
&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;Coordinati da Thomas Collett, i ricercatori dell&#39;Istituto di Cosmologia e Gravitazione dell&#39;Università inglese di Portsmouth hanno realizzato &quot;&lt;/span&gt;&lt;span style=&quot;border: 0px; box-sizing: border-box; font: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;la misura più precisa&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;della Relatività Generale&amp;nbsp;&lt;/span&gt;&lt;span style=&quot;border: 0px; box-sizing: border-box; font: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;al di fuori del Sistema Solare&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&quot;. Per farlo, hanno sfruttato un fenomeno previsto proprio da Einstein nella sua teoria: la lente gravitazionale. Si tratta di un&amp;nbsp;&lt;/span&gt;&lt;span style=&quot;border: 0px; box-sizing: border-box; font: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;effetto lente d&#39;ingrandimento&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;caratterizzato dalla curvatura della luce emessa da una sorgente lontana, a causa della presenza di una massa posta tra la sorgente stessa e l&#39;osservatore.&lt;/span&gt;&lt;/div&gt;
&lt;/span&gt;&lt;br style=&quot;box-sizing: border-box;&quot; /&gt;&lt;iframe allowfullscreen=&quot;allowfullscreen&quot; frameborder=&quot;0&quot; height=&quot;315&quot; src=&quot;https://www.youtube.com/embed/6Gd4-cCKnpg&quot; style=&quot;border-style: initial; border-width: 0px; box-sizing: border-box; font: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot; width=&quot;560&quot;&gt;&lt;/iframe&gt;&lt;br style=&quot;box-sizing: border-box;&quot; /&gt;&lt;br style=&quot;box-sizing: border-box;&quot; /&gt;&lt;div style=&quot;color: #333333; font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit; text-align: justify;&quot;&gt;
&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;I ricercatori hanno usato come una lente di ingrandimento cosmica la&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;galassia ESO325-G004&lt;/strong&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;, a 500 milioni di anni luce dalla Terra. Hanno poi misurato quanto velocemente si muovono le stelle al suo interno, per capire quanta massa occorre per tenerle insieme nella galassia. &quot;Se due galassie sono allineate lungo la nostra linea di osservazione - ha spiegato Collett - vediamo immagini multiple della galassia più lontana. Misurando la massa della galassia in primo piano siamo in grado di fare calcoli simili anche sulla galassia lontana. Questo - ha concluso - rappresenta una misura della correttezza della Relatività con una precisione mai raggiunta su scala galattica&quot;.&lt;/span&gt;&lt;/div&gt;
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http://feeds.feedburner.com/astronomicando-BoletimDeNoticias-ObservatorioMonoceros&lt;/div&gt;</description><link>http://astronomicando.blogspot.com/2018/06/conferma-galattica-per-la-teoria-della.html</link><author>noreply@blogger.com (Leila Ossola)</author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/6Gd4-cCKnpg/default.jpg" height="72" width="72"/><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-4133783924183725468.post-5983159690737890186</guid><pubDate>Sat, 23 Jun 2018 13:14:00 +0000</pubDate><atom:updated>2018-06-23T10:14:17.613-03:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">METEOROS</category><title>Meteoro de longa duração é visto no céu do Ceará</title><description>&lt;h2 class=&quot;content-head__subtitle&quot; itemprop=&quot;alternativeHeadline&quot; style=&quot;background-color: white; border: 0px; box-sizing: inherit; color: #666666; font-family: opensanstitle, helvetica, arial, sans-serif; font-size: 1.25rem; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; font-weight: inherit; letter-spacing: -0.8px; line-height: 1.45; margin: 0px; padding: 0px; text-align: justify; vertical-align: baseline;&quot;&gt;
Corpo celeste entrou na atmosfera da Terra sobre o município de Jaguaretama e caiu na região de Icó.&lt;/h2&gt;
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www.g1.globo.com&lt;/div&gt;
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&lt;div class=&quot;progressive-img can-open-lightbox&quot; data-max-size-url=&quot;https://s2.glbimg.com/9yyqqV_unOlwRwsNHe9Qljf6X_w=/0x0:1177x622/1600x0/smart/filters:strip_icc()/i.s3.glbimg.com/v1/AUTH_59edd422c0c84a879bd37670ae4f538a/internal_photos/bs/2018/H/l/WnDpGqQOCZqTjruhlqBw/meteoro-da-paixaop.jpg&quot; data-max-size=&quot;1600x845&quot; data-media-index=&quot;0&quot; data-min-size-url=&quot;https://s2.glbimg.com/enkbxeW2XyB7QVh6vLO71pzwYaA=/0x0:1177x622/1008x0/smart/filters:strip_icc()/i.s3.glbimg.com/v1/AUTH_59edd422c0c84a879bd37670ae4f538a/internal_photos/bs/2018/H/l/WnDpGqQOCZqTjruhlqBw/meteoro-da-paixaop.jpg&quot; data-min-size=&quot;1008x532&quot; style=&quot;background-color: #f6f6f6; background-repeat: no-repeat; background-size: cover; border: 0px; box-sizing: inherit; cursor: pointer; font: inherit; margin: 0px; overflow: hidden; padding: 0px; position: relative; vertical-align: baseline;&quot;&gt;
&lt;img alt=&quot;Meteoro cai em Icó, no Ceará, e chama atenção da população pelo tamanho.  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&lt;div class=&quot;content-media__description&quot; style=&quot;border: 0px; box-sizing: inherit; color: #666666; font: inherit; padding: 9px 0px 0px; vertical-align: baseline;&quot;&gt;
&lt;span class=&quot;content-media__description__icon theme-color-primary&quot; style=&quot;border: 0px; box-sizing: inherit; color: #c4170c; fill: currentcolor; float: left; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: 12px; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;svg height=&quot;11.25px&quot; viewbox=&quot;0 0 13 12&quot; width=&quot;13.5px&quot; xmlns=&quot;http://www.w3.org/2000/svg&quot;&gt;&lt;ellipse cx=&quot;6.5&quot; cy=&quot;6.7826087&quot; id=&quot;Oval&quot; rx=&quot;2&quot; ry=&quot;2.08695652&quot;&gt;&lt;/ellipse&gt;&lt;path d=&quot;M4.625,0.260869565 L3.48125,1.56521739 L1.5,1.56521739 C0.8125,1.56521739 0.25,2.15217391 0.25,2.86956522 L0.25,10.6956522 C0.25,11.4130435 0.8125,12 1.5,12 L11.5,12 C12.1875,12 12.75,11.4130435 12.75,10.6956522 L12.75,2.86956522 C12.75,2.15217391 12.1875,1.56521739 11.5,1.56521739 L9.51875,1.56521739 L8.375,0.260869565 L4.625,0.260869565 L4.625,0.260869565 Z M6.5,10.0434783 C4.775,10.0434783 3.375,8.5826087 3.375,6.7826087 C3.375,4.9826087 4.775,3.52173913 6.5,3.52173913 C8.225,3.52173913 9.625,4.9826087 9.625,6.7826087 C9.625,8.5826087 8.225,10.0434783 6.5,10.0434783 L6.5,10.0434783 Z&quot; id=&quot;Shape&quot;&gt;&lt;/path&gt;&lt;/svg&gt;&lt;/span&gt;&lt;span class=&quot;content-media__description__caption&quot; style=&quot;border: 0px; box-sizing: inherit; display: block; font-family: inherit; font-size: 12px; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: 1.3; margin: 0px 0px 0px 20px; padding: 0px; vertical-align: baseline;&quot;&gt;Meteoro cai em Icó, no Ceará, e chama atenção da população pelo tamanho. (Foto: Rede Brasileira de Monitoramento de Meteoros)&lt;/span&gt;&lt;span class=&quot;content-media__description__caption&quot; style=&quot;border: 0px; box-sizing: inherit; display: block; font-family: inherit; font-size: 12px; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: 1.3; margin: 0px 0px 0px 20px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;span class=&quot;content-media__description__caption&quot; style=&quot;border: 0px; box-sizing: inherit; display: block; font-family: inherit; font-size: 12px; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: 1.3; margin: 0px 0px 0px 20px; padding: 0px; text-align: justify; vertical-align: baseline;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;mc-column content-text active-extra-styles active-capital-letter&quot; data-block-id=&quot;2&quot; data-block-type=&quot;unstyled&quot; data-block-weight=&quot;66&quot; style=&quot;border: 0px; box-sizing: inherit; float: none; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; letter-spacing: -0.6px; line-height: 1.77; margin: 0px auto 30px; max-width: 42.5rem; overflow-wrap: break-word; padding: 0px 1rem; vertical-align: baseline; width: 680px;&quot;&gt;
&lt;div class=&quot;content-text__container theme-color-primary-first-letter&quot; data-track-category=&quot;Link no Texto&quot; data-track-links=&quot;&quot; style=&quot;border: 0px; box-sizing: inherit; font-family: inherit; font-size: 1.25rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; padding: 0px; text-align: justify; vertical-align: baseline;&quot;&gt;
Um grande meteoro foi registrado na noite de 20 de junho no Ceará, com trajetória entre as cidades de Jaguaretama e Icó. A bola de fogo chamou a atenção de moradores dos municípios por ter se manifestado no céu por oito segundos, o que é considerada uma longa duração para um fenômeno do tipo, conforme Lauriston Trindade, membro da Rede Brasileira de Monitoramento de Meteoros (Bramon).&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;content-media__description&quot; style=&quot;border: 0px; box-sizing: inherit; color: #666666; font: inherit; padding: 9px 0px 0px; text-align: justify; vertical-align: baseline;&quot;&gt;
&lt;span class=&quot;content-media__description__caption&quot; style=&quot;border: 0px; box-sizing: inherit; display: block; font-family: inherit; font-size: 12px; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: 1.3; margin: 0px 0px 0px 20px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;wall&quot; style=&quot;border: 0px; box-sizing: inherit; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;
&lt;div class=&quot;mc-column content-text active-extra-styles &quot; data-block-id=&quot;3&quot; data-block-type=&quot;unstyled&quot; data-block-weight=&quot;43&quot; style=&quot;border: 0px; box-sizing: inherit; float: none; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: -0.6px; line-height: 1.77; margin: 0px auto 30px; max-width: 42.5rem; overflow-wrap: break-word; padding: 0px 1rem; vertical-align: baseline; width: 680px;&quot;&gt;
&lt;div class=&quot;content-text__container &quot; data-track-category=&quot;Link no Texto&quot; data-track-links=&quot;&quot; style=&quot;border: 0px; box-sizing: inherit; font-family: inherit; font-size: 1.25rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; padding: 0px; text-align: justify; vertical-align: baseline;&quot;&gt;
&quot;Há relatos também de pessoas que ouviram um grande barulho seguido desse meteoro. Esses grandes meteoros geralmente acontecem na madrugada, quando a maioria das pessoas estão dormindo, então passam despercebidos. Mas esse aconteceu relativamente cedo, às 23h, por isso mais pessoas repararam&quot;, explica.&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;mc-column content-text active-extra-styles&quot; data-block-id=&quot;4&quot; data-block-type=&quot;raw&quot; data-block-weight=&quot;1&quot; style=&quot;border: 0px; box-sizing: inherit; float: none; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: -0.6px; line-height: 1.77; margin: 0px auto 30px; max-width: 42.5rem; overflow-wrap: break-word; padding: 0px 1rem; vertical-align: baseline; width: 680px;&quot;&gt;
&lt;div class=&quot;content-text__container&quot; style=&quot;border: 0px; box-sizing: inherit; font-family: inherit; font-size: 1.25rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; padding: 0px; vertical-align: baseline;&quot;&gt;
&lt;/div&gt;
&lt;div class=&quot;content-intertitle&quot; style=&quot;border: 0px; box-sizing: inherit; color: #333333; font-family: inherit; font-size: 1.5rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 700; letter-spacing: -0.065rem; line-height: 1.75rem; margin: 1rem 0px -0.8rem; padding: 0px; vertical-align: baseline;&quot;&gt;
&lt;h2 style=&quot;border: 0px; box-sizing: inherit; font: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;
Trajetória&lt;/h2&gt;
&lt;/div&gt;
&lt;div style=&quot;border: 0px; box-sizing: inherit; font: inherit; padding: 0px; vertical-align: baseline;&quot;&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;mc-column content-media content-media--normal content-video&quot; data-block-id=&quot;5&quot; data-block-type=&quot;backstage-video&quot; itemscope=&quot;&quot; itemtype=&quot;http://schema.org/VideoObject&quot; style=&quot;border: 0px; box-sizing: inherit; clear: both; float: none; font: inherit; margin: 0px auto 21px; max-width: 42.5rem; padding: 10px 1rem 0px; vertical-align: baseline; width: 680px;&quot;&gt;
&lt;div class=&quot;content-media__container content-media__container--loaded&quot; itemprop=&quot;video&quot; style=&quot;border-radius: 4px; border: 0px; box-sizing: inherit; font: inherit; margin: 0px; overflow: hidden; padding: 0px; position: relative; vertical-align: baseline;&quot;&gt;
&lt;div class=&quot;content-video__video&quot; style=&quot;background-color: black; border-radius: 4px; border: 0px; box-sizing: inherit; font: inherit; height: 364.5px; left: 0px; margin: 0px; overflow: hidden; padding: 0px; position: absolute; top: 0px; vertical-align: baseline; width: 648px;&quot;&gt;
&lt;div class=&quot;clappr-player&quot; data-player=&quot;&quot; id=&quot;wp3-player-0&quot; style=&quot;-webkit-font-smoothing: antialiased; -webkit-tap-highlight-color: transparent; border-radius: 4px; border: 0px; box-sizing: inherit; float: none; font-family: &amp;quot;lucida grande&amp;quot;, tahoma, verdana, arial, sans-serif; font-stretch: inherit; font-variant: inherit; height: 364.5px; line-height: inherit; margin: 0px; max-width: none; overflow: hidden; padding: 0px; position: relative; text-align: center; text-shadow: 0px 0px 0px; transform: translateZ(0px); user-select: none; vertical-align: baseline; width: 648px;&quot; tabindex=&quot;9999&quot;&gt;
&lt;div class=&quot;dfp-ad-overlay dfp-ad-overlay--poster-mode&quot; style=&quot;border: 0px; bottom: 0px; box-sizing: inherit; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 364.5px; left: 0px; line-height: inherit; margin: 0px; max-width: none; padding: 0px; position: absolute; transform: translateZ(0px); transition: bottom 0.4s ease-out; vertical-align: baseline; visibility: hidden !important; width: 648px; z-index: 994;&quot;&gt;
&lt;div style=&quot;border: 0px; box-sizing: inherit; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 365px; line-height: inherit; margin: 0px; max-width: none; padding: 0px; position: absolute; vertical-align: baseline; width: 648px;&quot;&gt;
&lt;iframe allow=&quot;autoplay&quot; allowfullscreen=&quot;&quot; height=&quot;365&quot; src=&quot;https://imasdk.googleapis.com/js/core/bridge3.216.0_pt_br.html#goog_198127026&quot; style=&quot;border-style: initial; border-width: 0px; box-sizing: inherit; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; max-width: none; opacity: 0; padding: 0px; position: relative; vertical-align: baseline;&quot; width=&quot;648&quot;&gt;&lt;/iframe&gt;&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;container master-container pointer-enabled&quot; data-container=&quot;&quot; data-pip=&quot;&quot; style=&quot;border: none; bottom: 0px; box-sizing: inherit; cursor: pointer; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 364.5px; line-height: inherit; margin: 0px; max-width: none; padding: 0px; position: absolute; right: 0px; vertical-align: baseline; width: 648px;&quot;&gt;
&lt;div class=&quot;poster&quot; style=&quot;-webkit-box-align: center; -webkit-box-pack: center; align-items: center; border: 0px; box-sizing: inherit; cursor: pointer; display: flex; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 364.5px; justify-content: center; line-height: inherit; margin: 0px; max-width: none; opacity: 1; padding: 0px; position: absolute; transition: opacity 0.5s ease, visibility 0.5s ease; vertical-align: baseline; visibility: visible; width: 648px; z-index: 995;&quot;&gt;
&lt;div class=&quot;poster__background&quot; style=&quot;background-image: url(&amp;quot;https://s01.video.glbimg.com/x720/6826556.jpg&amp;quot;); background-position: 50% 50%; background-repeat: no-repeat; background-size: cover; border: 0px; box-sizing: inherit; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 364.5px; left: 0px; line-height: inherit; margin: 0px; max-width: none; padding: 0px; position: absolute; top: 0px; vertical-align: baseline; width: 648px;&quot;&gt;
&lt;/div&gt;
&lt;div class=&quot;poster__background-overlay&quot; style=&quot;background: rgba(0, 0, 0, 0.5); border: 0px; box-sizing: inherit; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 364.5px; left: 0px; line-height: inherit; margin: 0px; max-width: none; padding: 0px; position: absolute; top: 0px; vertical-align: baseline; width: 648px;&quot;&gt;
&lt;/div&gt;
&lt;div class=&quot;poster__play-wrapper&quot; style=&quot;border: 0px; box-sizing: inherit; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 58.3125px; line-height: inherit; margin: 0px; max-width: none; opacity: 0.97; padding: 0px; transition: filter 0.3s, -webkit-filter 0.3s; vertical-align: baseline; width: 648px;&quot;&gt;
&lt;svg version=&quot;1.1&quot; viewbox=&quot;0 0 17 20&quot; xmlns:xlink=&quot;http://www.w3.org/1999/xlink&quot; xmlns=&quot;http://www.w3.org/2000/svg&quot;&gt;&lt;g fill-rule=&quot;evenodd&quot; fill=&quot;none&quot; stroke-width=&quot;1&quot; stroke=&quot;none&quot;&gt;&lt;g fill=&quot;#FFFFFF&quot; transform=&quot;translate(-25.000000, -349.000000)&quot;&gt;&lt;path d=&quot;M41.3011994,357.97664 C42.2460261,358.542199 42.238008,359.463951 41.3011994,360.02471 L26.71076,368.758327 C25.7659333,369.323886 25,368.883265 25,367.773096 L25,350.228254 C25,349.118566 25.7739514,348.682263 26.71076,349.243022 L41.3011994,357.97664 Z&quot; id=&quot;Triangle&quot;&gt;&lt;/path&gt;&lt;/g&gt;&lt;/g&gt;&lt;/svg&gt;&lt;/div&gt;
&lt;/div&gt;
&lt;div data-id-playback=&quot;&quot; style=&quot;border: 0px; box-sizing: inherit; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 364.5px; line-height: inherit; margin: 0px; max-width: none; padding: 0px; vertical-align: baseline;&quot;&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;media-control media-control-hide&quot; style=&quot;border-radius: 0px; border: 0px; bottom: 0px; box-sizing: inherit; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 364.5px; left: 0px; line-height: inherit; margin: 0px auto; max-width: none; opacity: 0; padding: 0px; pointer-events: none; position: absolute; right: 0px; transform: translateZ(0px); transition: visibility 0.4s ease, opacity 0.4s ease; vertical-align: baseline; visibility: hidden; width: 648px; z-index: 997;&quot;&gt;
&lt;div class=&quot;media-control-background&quot; style=&quot;background-color: rgba(0, 0, 0, 0.1); border: 0px; bottom: 0px; box-sizing: inherit; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 364.5px; line-height: inherit; margin: 0px; max-width: none; opacity: 0; padding: 0px; position: absolute; transition: opacity 0.4s ease; vertical-align: baseline; width: 648px;&quot;&gt;
&lt;/div&gt;
&lt;div class=&quot;media-control-panel&quot; style=&quot;-webkit-box-direction: normal; -webkit-box-orient: vertical; border: 0px; box-sizing: inherit; display: flex; flex-flow: column nowrap; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 364.5px; line-height: inherit; margin: 0px; max-width: none; padding: 0px; pointer-events: none; position: absolute; vertical-align: middle; width: 648px;&quot;&gt;
&lt;div class=&quot;media-control-panel__upper&quot; style=&quot;border: 0px; box-sizing: inherit; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; max-width: none; opacity: 1; padding: 17px 17px 0px; pointer-events: auto; position: relative; transform: translateY(-60px); transition: transform 0.4s ease, opacity 0.4s ease, -webkit-transform 0.4s ease; vertical-align: baseline; will-change: transform, opacity;&quot;&gt;
&lt;div class=&quot;opposites-container&quot; style=&quot;-webkit-box-align: start; -webkit-box-pack: justify; align-items: flex-start; border: 0px; box-sizing: inherit; display: flex; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; justify-content: space-between; line-height: inherit; margin: 0px; max-width: none; padding: 0px; vertical-align: baseline;&quot;&gt;
&lt;div class=&quot;media-control-position__left&quot; style=&quot;-webkit-box-align: center; -webkit-box-direction: normal; -webkit-box-orient: horizontal; align-items: center; border: 0px; box-sizing: inherit; display: flex; flex-flow: row nowrap; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; max-width: none; padding: 0px; vertical-align: baseline;&quot;&gt;
&lt;div class=&quot;video-info video-info--hidden video-info--basic &quot; style=&quot;border: 0px; box-sizing: border-box; color: white; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; max-width: none; opacity: 0; padding: 0px; pointer-events: none; text-shadow: none; vertical-align: baseline; z-index: 996;&quot;&gt;
&lt;div class=&quot;video-info__status&quot; style=&quot;border: 0px; box-sizing: inherit; float: none; font-family: proximanova-xbold, sans-serif; font-size: 16px; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: 16px; margin: 0px; max-width: none; padding: 0px; text-align: left; text-shadow: rgba(0, 0, 0, 0.5) 0px 0px 2px; transition: all 0.2s ease; vertical-align: baseline;&quot;&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;media-control-position__right&quot; style=&quot;-webkit-box-align: center; -webkit-box-direction: normal; -webkit-box-orient: horizontal; align-items: center; border: 0px; box-sizing: inherit; display: flex; flex-flow: row nowrap; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; max-width: none; padding: 0px; vertical-align: baseline;&quot;&gt;
&lt;button class=&quot;media-control-button&quot; data-controls=&quot;&quot; data-share=&quot;&quot; style=&quot;border-color: initial; border-style: initial; border-width: 0px; box-sizing: inherit; cursor: pointer; float: none; margin: 0px; max-width: none; opacity: 0.9; padding: 0px 0px 0px 10px; transition: opacity 0.1s ease-out; will-change: opacity;&quot;&gt;&lt;svg version=&quot;1.1&quot; viewbox=&quot;0 0 32 27&quot; xmlns:xlink=&quot;http://www.w3.org/1999/xlink&quot; xmlns=&quot;http://www.w3.org/2000/svg&quot;&gt;&lt;g fill-rule=&quot;evenodd&quot; fill=&quot;none&quot; id=&quot;Player-Interface&quot; stroke-width=&quot;1&quot; stroke=&quot;none&quot;&gt;&lt;g fill=&quot;#FFFFFF&quot; id=&quot;Desktop_Large_VOD01&quot; transform=&quot;translate(-1847.000000, -38.000000)&quot;&gt;&lt;path d=&quot;M1859.43421,45.2 L1859.43421,38 L1847,50.6 L1859.43421,63.2 L1859.43421,55.82 C1868.31579,55.82 1874.53289,58.7 1878.97368,65 C1877.19737,56 1871.86842,47 1859.43421,45.2 Z&quot; id=&quot;Shape-Copy-2&quot; transform=&quot;translate(1862.986842, 51.500000) scale(-1, 1) translate(-1862.986842, -51.500000) &quot;&gt;&lt;/path&gt;&lt;/g&gt;&lt;/g&gt;&lt;/svg&gt;&lt;/button&gt;&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;media-control-position__center&quot; style=&quot;-webkit-box-align: center; -webkit-box-direction: normal; -webkit-box-orient: vertical; -webkit-box-pack: center; align-items: center; border: 0px; box-sizing: inherit; display: flex; flex-flow: column nowrap; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; justify-content: center; line-height: inherit; margin: 0px; max-width: none; padding: 0px; vertical-align: baseline;&quot;&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;media-control-panel__middle&quot; style=&quot;-webkit-box-align: center; -webkit-box-flex: 1; -webkit-box-pack: justify; align-items: center; border: 0px; box-sizing: inherit; display: flex; flex: 1 1 0%; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; justify-content: space-between; line-height: inherit; margin: 0px; max-width: none; padding: 0px 17px; vertical-align: baseline;&quot;&gt;
&lt;div class=&quot;media-control-position__left&quot; style=&quot;-webkit-box-align: center; -webkit-box-direction: normal; -webkit-box-orient: horizontal; align-items: center; border: 0px; box-sizing: inherit; display: flex; flex-flow: row nowrap; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; max-width: none; padding: 0px; pointer-events: auto; vertical-align: baseline;&quot;&gt;
&lt;/div&gt;
&lt;div class=&quot;media-control-position__center&quot; style=&quot;-webkit-box-align: center; -webkit-box-pack: center; align-items: center; border: 0px; box-sizing: inherit; display: flex; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; justify-content: center; line-height: inherit; margin: 0px; max-width: none; padding: 0px; pointer-events: auto; vertical-align: baseline;&quot;&gt;
&lt;/div&gt;
&lt;div class=&quot;media-control-position__right&quot; style=&quot;-webkit-box-align: center; -webkit-box-direction: normal; -webkit-box-orient: horizontal; align-items: center; border: 0px; box-sizing: inherit; display: flex; flex-flow: row nowrap; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; max-width: none; padding: 0px; pointer-events: auto; vertical-align: baseline;&quot;&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;media-control-panel__lower&quot; data-controls=&quot;&quot; style=&quot;border: 0px; box-sizing: inherit; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: 12px; margin: 0px; max-width: none; opacity: 1; padding: 0px 17px 15px; pointer-events: auto; position: relative; transform: translateY(65px); transition: transform 0.4s ease, opacity 0.4s ease, -webkit-transform 0.4s ease; vertical-align: baseline; will-change: transform, opacity;&quot;&gt;
&lt;div class=&quot;media-control-position__center&quot; style=&quot;-webkit-box-align: center; -webkit-box-direction: reverse; -webkit-box-orient: vertical; -webkit-box-pack: center; align-items: center; border: 0px; box-sizing: inherit; display: flex; flex-flow: column-reverse nowrap; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; justify-content: center; line-height: inherit; margin: 0px; max-width: none; padding: 0px; vertical-align: baseline;&quot;&gt;
&lt;div class=&quot;bar-container&quot; data-seekbar=&quot;&quot; style=&quot;-webkit-box-align: center; align-items: center; border: 0px; box-sizing: inherit; cursor: pointer; display: flex; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 25px; line-height: inherit; margin: 0px 0px 4px; max-width: none; padding: 0px; position: relative; transition: opacity 0.2s ease; vertical-align: baseline; width: 614px;&quot;&gt;
&lt;div class=&quot;bar-background&quot; data-seekbar=&quot;&quot; style=&quot;background-color: rgba(255, 255, 255, 0.2); border: 0px; box-sizing: inherit; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 3px; line-height: inherit; margin: 0px; max-width: none; overflow: hidden; padding: 0px; position: absolute; top: calc(50% - 1.5px); transform: scaleY(1); transition: transform 0.2s ease-in-out, -webkit-transform 0.2s ease-in-out; vertical-align: baseline; width: 614px;&quot;&gt;
&lt;div class=&quot;bar-fill-1&quot; data-seekbar=&quot;&quot; style=&quot;background-color: rgba(255, 255, 255, 0.3); border: 0px; box-sizing: inherit; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 3px; left: 0px; line-height: inherit; margin: 0px; max-width: none; padding: 0px; position: absolute; top: 0px; transition: left 0.1s ease-out, width 0.1s ease-out, background-color 0.1s ease; vertical-align: baseline; width: 0px;&quot;&gt;
&lt;/div&gt;
&lt;div class=&quot;bar-fill-2&quot; data-seekbar=&quot;&quot; style=&quot;background-color: white; border: 0px; box-sizing: inherit; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 3px; left: 0px; line-height: inherit; margin: 0px; max-width: none; padding: 0px; position: absolute; top: 0px; transition: left 0.1s ease-out, width 0.1s ease-out, background-color 0.1s ease; vertical-align: baseline; width: calc(0% + 3px);&quot;&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;bar-scrubber&quot; data-seekbar=&quot;&quot; style=&quot;border: 0px; box-sizing: inherit; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 12px; left: 0px; line-height: inherit; margin: 0px; max-width: none; opacity: 1; padding: 0px; position: relative; transition: left 0.1s ease-out, opacity 0.1s ease; vertical-align: baseline; width: 12px; z-index: 200;&quot;&gt;
&lt;div class=&quot;bar-scrubber-icon&quot; data-seekbar=&quot;&quot; style=&quot;background-color: white; border-radius: 50%; border: 0px; box-shadow: rgba(0, 0, 0, 0.2) 0px 0px 3px 1px; box-sizing: inherit; display: inline-block; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 12px; left: 0px; line-height: inherit; margin: 0px; max-width: none; padding: 0px; position: absolute; top: 0px; transition: background-color 0.1s ease, width 0.1s ease, height 0.1s ease; vertical-align: baseline; width: 12px;&quot;&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;thumb-preview thumb-preview--hidden&quot; style=&quot;-webkit-box-align: center; -webkit-box-pack: center; align-items: center; border: 0px; bottom: 25px; box-sizing: inherit; display: flex; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; justify-content: center; left: -614px; line-height: inherit; margin: 0px; max-width: none; opacity: 0; padding: 0px; position: absolute; transition: opacity 0.4s ease; vertical-align: baseline;&quot;&gt;
&lt;div class=&quot;thumb-preview__thumb&quot; style=&quot;background-color: rgba(0, 0, 0, 0.75); background-repeat: no-repeat; border-radius: 2px; border: 1px solid rgb(85, 85, 85); bottom: 0px; box-sizing: inherit; float: none; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 5px; left: 0px; line-height: inherit; margin: 0px; max-width: none; outline: transparent solid 1px; padding: 0px; position: absolute; vertical-align: baseline; width: 24px;&quot;&gt;
&lt;/div&gt;
&lt;div class=&quot;thumb-preview__position&quot; style=&quot;align-self: flex-end; background-color: rgba(0, 0, 0, 0.5); border-bottom-color: rgb(85, 85, 85); border-bottom-style: solid; border-image: initial; border-left-color: initial; border-left-style: initial; border-radius: 3px 3px 0px 0px; border-right-color: initial; border-right-style: initial; border-top-color: initial; border-top-style: initial; border-width: 0px 0px 1px; bottom: 1px; box-sizing: inherit; color: white; display: flex; float: none; font-family: opensans-bold, sans-serif; font-size: 14px; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; max-width: none; padding: 2px 12px; text-shadow: rgba(0, 0, 0, 0.5) 0px 0px 2px; vertical-align: baseline; z-index: 100;&quot;&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
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&lt;img alt=&quot;Meteoro de longa duração é visto no céu do Ceará&quot; class=&quot;content-video__placeholder__thumb&quot; src=&quot;https://s01.video.glbimg.com/x720/6826556.jpg&quot; style=&quot;border-radius: 4px; border: 0px; box-sizing: inherit; display: block; font: inherit; margin: 0px auto; max-width: 100%; padding: 0px; vertical-align: baseline;&quot; title=&quot;Meteoro de longa duração é visto no céu do Ceará&quot; /&gt;&lt;/div&gt;
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O corpo celestre foi captado por quatro câmeras de observadores amadores. Duas delas estavam posicionadas no Ceará, em Maranguape e Iguatu; outras duas estavam na Paraíba, nas cidades de João Pessoa e Campina Grande. Com a ajuda dos equipamentos foi possível calcular a trajetória e outros detalhes do objeto.&lt;/div&gt;
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&quot;Ele percorreu a atmosfera da terra com uma velocidade de 12km/segundo [43 km/h] e atravessou 117 quilômetros, até cair na altura de Icó. De posse da trajetória, estamos tentando determinar a região onde possa existir os meteoritos&quot;, afirma o observador.&lt;/div&gt;
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&lt;div class=&quot;mc-column content-text active-extra-styles &quot; data-block-id=&quot;10&quot; data-block-type=&quot;unstyled&quot; data-block-weight=&quot;34&quot; style=&quot;border: 0px; box-sizing: inherit; float: none; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: -0.6px; line-height: 1.77; margin: 0px auto 30px; max-width: 42.5rem; overflow-wrap: break-word; padding: 0px 1rem; vertical-align: baseline; width: 680px;&quot;&gt;
&lt;div class=&quot;content-text__container &quot; data-track-category=&quot;Link no Texto&quot; data-track-links=&quot;&quot; style=&quot;border: 0px; box-sizing: inherit; font-family: inherit; font-size: 1.25rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; padding: 0px; vertical-align: baseline;&quot;&gt;
&quot;Ainda é necessário fazer diversos cálculos e uma análise mais aprofundada, mas estamos estimando que possa ter sobrado alguns quilos de meteorito&quot;, supõe Lauriston Andrade, referindo-se aos fragmentos que podem ter sobrado do bólibo.&lt;/div&gt;
&lt;/div&gt;
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A maioria meteoros que chega à atmosfera terrestre desintegra-se antes de atingir o solo.&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
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&lt;div data-track-action=&quot;ultimo chunk conteudo&quot; data-track-category=&quot;fim do conteudo&quot; data-track-noninteraction=&quot;false&quot; data-track-scroll=&quot;entrada completa viewport&quot; style=&quot;border: 0px; box-sizing: inherit; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;
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Apesar de ter atraído os olhares da população das cidades por onde sobrevoou, o meteoro não causaria grande perigo com a queda. &quot;Esse tipo não tem riscos para as pessoas, principalmente porque caiu na zona rural, numa região pouco povoada&quot;, comenta o membro da Bramon.&lt;/div&gt;
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http://feeds.feedburner.com/astronomicando-BoletimDeNoticias-ObservatorioMonoceros&lt;/div&gt;</description><link>http://astronomicando.blogspot.com/2018/06/meteoro-de-longa-duracao-e-visto-no-ceu.html</link><author>noreply@blogger.com (Leila Ossola)</author><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-4133783924183725468.post-4063317277337021999</guid><pubDate>Tue, 29 May 2018 22:35:00 +0000</pubDate><atom:updated>2018-05-29T19:35:31.709-03:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">Astronomia</category><title>O monstruoso buraco negro recém-descoberto que engole um Sol a cada dois dias</title><description>Da BBC&lt;br /&gt;
&lt;br /&gt;
&lt;figure class=&quot;media-landscape has-caption full-width lead&quot; style=&quot;background-color: #111111; border: 0px; clear: both; color: #404040; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 14px; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; line-height: inherit; margin: 32px -54.2188px 0px 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;image-and-copyright-container&quot; style=&quot;border: 0px; color: inherit; display: block; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 0px; position: relative; vertical-align: baseline;&quot;&gt;&lt;img alt=&quot;Ilustração de um buraco negro&quot; class=&quot;js-image-replace&quot; data-highest-encountered-width=&quot;660&quot; height=&quot;549&quot; src=&quot;https://ichef.bbci.co.uk/news/660/cpsprodpb/120DE/production/_101605937_fotosuper.jpg&quot; style=&quot;border: 0px; color: #bdbdbd; display: block; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: auto; letter-spacing: inherit; line-height: inherit; margin: 0px; max-width: 100%; padding: 0px; user-select: none; vertical-align: baseline; width: 645.781px;&quot; width=&quot;976&quot; /&gt;&lt;span class=&quot;off-screen&quot; style=&quot;border: 0px !important; clip: rect(1px, 1px, 1px, 1px); color: inherit; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 1px !important; letter-spacing: inherit; line-height: inherit; margin: 0px; overflow: hidden; padding: 0px !important; position: absolute !important; vertical-align: baseline; width: 1px !important;&quot;&gt;Direito de imagem&lt;/span&gt;&lt;span class=&quot;story-image-copyright&quot; style=&quot;background: rgba(0, 0, 0, 0.6); border: 0px; bottom: 0px; color: #ececec; font-family: inherit; font-size: 0.75rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: 0.25px; line-height: 1.33333; margin: 0px; padding: 3px 8px 1px; position: absolute; right: 0px; text-transform: uppercase; vertical-align: baseline;&quot;&gt;GETTY IMAGES&lt;/span&gt;&lt;/span&gt;&lt;figcaption class=&quot;media-caption&quot; style=&quot;border: 0px; color: inherit; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 16px; vertical-align: baseline; visibility: visible;&quot;&gt;&lt;span class=&quot;off-screen&quot; style=&quot;border: 0px !important; clip: rect(1px, 1px, 1px, 1px); color: inherit; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 1px !important; letter-spacing: inherit; line-height: inherit; margin: 0px; overflow: hidden; padding: 0px !important; position: absolute !important; vertical-align: baseline; width: 1px !important;&quot;&gt;Image caption&lt;/span&gt;&lt;span class=&quot;media-caption__text&quot; style=&quot;border: 0px; color: #ececec; display: block; font-family: inherit; font-size: 0.8125rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: 1.23077; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Massa do buraco negro é 20 milhões de vezes a do nosso Sol.&lt;/span&gt;&lt;/figcaption&gt;&lt;/figure&gt;&lt;div class=&quot;story-body__introduction&quot; style=&quot;background-color: white; border: 0px; color: #404040; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 1rem; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; font-weight: bold; line-height: 1.375; margin-top: 28px; padding: 0px; text-align: justify; vertical-align: baseline;&quot;&gt;
Um grupo de astrônomos australianos descobriu um super buraco negro brilhante, que cresce de uma forma nunca antes observada e é capaz de absorver uma massa equivalente à do Sol a cada dois dias.&lt;/div&gt;
&lt;div style=&quot;background-color: white; border: 0px; color: #404040; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 1rem; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; line-height: 1.375; margin-top: 18px; padding: 0px; text-align: justify; vertical-align: baseline;&quot;&gt;
À primeira vista, a existência de um buraco negro que brilha parece uma contradição. A explicação passa pelo próprio tamanho do objeto astronômico, com uma massa equivalente a 20 milhões de vezes a do nosso Sol, e também pela acelerada velocidade de expansão.&lt;/div&gt;
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&quot;Esse buraco negro está crescendo tão rapidamente que é milhares de vezes mais brilhante que uma galáxia inteira, por causa de todos os gases que absorve diariamente e que causam muito atrito e calor&quot;, explicou Christian Wolf, da Escola de Astronomia e Astrofísica da Universidade Nacional Australiana (ANU, na sigla em inglês).&lt;/div&gt;
&lt;figure class=&quot;media-landscape has-caption full-width&quot; style=&quot;background-color: #111111; border: 0px; clear: both; color: #404040; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 14px; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; line-height: inherit; margin: 24px -24.6449px 0px 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;image-and-copyright-container&quot; style=&quot;border: 0px; color: inherit; display: block; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 0px; position: relative; vertical-align: baseline;&quot;&gt;&lt;img alt=&quot;Buraco negro brilhante&quot; class=&quot;responsive-image__img js-image-replace&quot; data-highest-encountered-width=&quot;624&quot; datasrc=&quot;https://ichef.bbci.co.uk/news/320/cpsprodpb/16EFE/production/_101605939_hubble.jpg&quot; height=&quot;549&quot; src=&quot;https://ichef.bbci.co.uk/news/624/cpsprodpb/16EFE/production/_101605939_hubble.jpg&quot; style=&quot;border: 0px; color: #bdbdbd; display: block; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: auto; letter-spacing: inherit; line-height: inherit; margin: 0px; max-width: 100%; padding: 0px; transition: opacity 0.2s ease-in; user-select: none; vertical-align: baseline; width: 616.207px;&quot; width=&quot;976&quot; /&gt;&lt;span class=&quot;off-screen&quot; style=&quot;border: 0px !important; clip: rect(1px, 1px, 1px, 1px); color: inherit; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 1px !important; letter-spacing: inherit; line-height: inherit; margin: 0px; overflow: hidden; padding: 0px !important; position: absolute !important; vertical-align: baseline; width: 1px !important;&quot;&gt;Direito de imagem&lt;/span&gt;&lt;span class=&quot;story-image-copyright&quot; style=&quot;background: rgba(0, 0, 0, 0.6); border: 0px; bottom: 0px; color: #ececec; font-family: inherit; font-size: 0.75rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: 0.25px; line-height: 1.33333; margin: 0px; padding: 3px 8px 1px; position: absolute; right: 0px; text-transform: uppercase; vertical-align: baseline;&quot;&gt;ESA/HUBBLE/NASA&lt;/span&gt;&lt;/span&gt;&lt;figcaption class=&quot;media-caption&quot; style=&quot;border: 0px; color: inherit; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 16px; vertical-align: baseline; visibility: visible;&quot;&gt;&lt;span class=&quot;off-screen&quot; style=&quot;border: 0px !important; clip: rect(1px, 1px, 1px, 1px); color: inherit; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 1px !important; letter-spacing: inherit; line-height: inherit; margin: 0px; overflow: hidden; padding: 0px !important; position: absolute !important; vertical-align: baseline; width: 1px !important;&quot;&gt;Image caption&lt;/span&gt;&lt;span class=&quot;media-caption__text&quot; style=&quot;border: 0px; color: #ececec; display: block; font-family: inherit; font-size: 0.8125rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: 1.23077; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&quot;Se tivéssemos esse monstro no centro de nossa Via Láctea, ele pareceria dez vezes mais brilhante que uma lua cheia e eliminaria todas as estrelas no céu&quot;, diz o astrônomo Christian Wolf.&lt;/span&gt;&lt;/figcaption&gt;&lt;/figure&gt;&lt;div style=&quot;background-color: white; border: 0px; color: #404040; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 1rem; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; line-height: 1.375; margin-top: 18px; padding: 0px; text-align: justify; vertical-align: baseline;&quot;&gt;
Objetos como o identificado pelos australianos são extremamente raros e é a primeira vez que astrônomos descobrem um que cresce a essa velocidade. O buraco negro foi detectado a 12 bilhões de anos luz de distância da Terra, com o uso do telescópio SkyMapper.&lt;/div&gt;
&lt;h2 class=&quot;story-body__crosshead&quot; style=&quot;background-color: white; border: 0px; color: #1e1e1e; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 1.5rem; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; font-weight: inherit; line-height: 1.16667; margin: 32px 0px 0px; padding: 0px; text-align: justify; vertical-align: baseline;&quot;&gt;
Brilho espetacular&lt;/h2&gt;
&lt;div style=&quot;background-color: white; border: 0px; color: #404040; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 1rem; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; line-height: 1.375; margin-top: 18px; padding: 0px; text-align: justify; vertical-align: baseline;&quot;&gt;
Esse tipo de buraco negro é conhecido como quasar, astro localizado em distâncias extremas e repleto de energia e luz. Os quasares são os astros mais brilhantes do Universo.&lt;/div&gt;
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Eles se formam após a colisão de duas galáxias, como previamente comprovado com dados coletados pelo telescópio espacial Hubble.&lt;/div&gt;
&lt;div style=&quot;background-color: white; border: 0px; color: #404040; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 1rem; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; line-height: 1.375; margin-top: 18px; padding: 0px; text-align: justify; vertical-align: baseline;&quot;&gt;
&quot;Se tivéssemos esse monstro no centro de nossa Via Láctea, ele pareceria dez vezes mais brilhante que uma lua cheia e eliminaria todas as estrelas no céu&quot;, diz o astrônomo Christian Wolf.&lt;/div&gt;
&lt;figure class=&quot;media-landscape has-caption full-width&quot; style=&quot;background-color: #111111; border: 0px; clear: both; color: #404040; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 14px; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; line-height: inherit; margin: 24px -24.6449px 0px 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;image-and-copyright-container&quot; style=&quot;border: 0px; color: inherit; display: block; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 0px; position: relative; vertical-align: baseline;&quot;&gt;&lt;img alt=&quot;Imagen de una luna llena.&quot; class=&quot;responsive-image__img js-image-replace&quot; data-highest-encountered-width=&quot;624&quot; datasrc=&quot;https://ichef.bbci.co.uk/news/320/cpsprodpb/3A66/production/_101605941_lunaaa.jpg&quot; height=&quot;549&quot; src=&quot;https://ichef.bbci.co.uk/news/624/cpsprodpb/3A66/production/_101605941_lunaaa.jpg&quot; style=&quot;border: 0px; color: #bdbdbd; display: block; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: auto; letter-spacing: inherit; line-height: inherit; margin: 0px; max-width: 100%; padding: 0px; transition: opacity 0.2s ease-in; user-select: none; vertical-align: baseline; width: 616.207px;&quot; width=&quot;976&quot; /&gt;&lt;span class=&quot;off-screen&quot; style=&quot;border: 0px !important; clip: rect(1px, 1px, 1px, 1px); color: inherit; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 1px !important; letter-spacing: inherit; line-height: inherit; margin: 0px; overflow: hidden; padding: 0px !important; position: absolute !important; vertical-align: baseline; width: 1px !important;&quot;&gt;Direito de imagem&lt;/span&gt;&lt;span class=&quot;story-image-copyright&quot; style=&quot;background: rgba(0, 0, 0, 0.6); border: 0px; bottom: 0px; color: #ececec; font-family: inherit; font-size: 0.75rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: 0.25px; line-height: 1.33333; margin: 0px; padding: 3px 8px 1px; position: absolute; right: 0px; text-transform: uppercase; vertical-align: baseline;&quot;&gt;GETTY IMAGES&lt;/span&gt;&lt;/span&gt;&lt;figcaption class=&quot;media-caption&quot; style=&quot;border: 0px; color: inherit; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 16px; vertical-align: baseline; visibility: visible;&quot;&gt;&lt;span class=&quot;off-screen&quot; style=&quot;border: 0px !important; clip: rect(1px, 1px, 1px, 1px); color: inherit; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 1px !important; letter-spacing: inherit; line-height: inherit; margin: 0px; overflow: hidden; padding: 0px !important; position: absolute !important; vertical-align: baseline; width: 1px !important;&quot;&gt;Image caption&lt;/span&gt;&lt;span class=&quot;media-caption__text&quot; style=&quot;border: 0px; color: #ececec; display: block; font-family: inherit; font-size: 0.8125rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: 1.23077; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;O brilho do buraco negro recém-descoberto equivale a dez vezes uma lua cheia&lt;/span&gt;&lt;/figcaption&gt;&lt;/figure&gt;&lt;div style=&quot;background-color: white; border: 0px; color: #404040; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 1rem; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; line-height: 1.375; margin-top: 18px; padding: 0px; text-align: justify; vertical-align: baseline;&quot;&gt;
Além de intensa, a luz desse &quot;monstro&quot; recém-descoberto era, principalmente, ultravioleta, apesar de também irradiar raios que &quot;tornariam a vida impossível na Terra se estivesse no centro de nossa Via Láctea&quot;, segundo o astrônomo australiano.&lt;/div&gt;
&lt;div style=&quot;background-color: white; border: 0px; color: #404040; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 1rem; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; line-height: 1.375; margin-top: 18px; padding: 0px; text-align: justify; vertical-align: baseline;&quot;&gt;
O telescópio Skymapper detectou essa luz quando ela se tornou vermelha em seu caminho de bilhões de anos em direção à Terra e, em seguida, o satélite Gaia, da Agência Espacial Europeia, confirmou que se tratava de um quasar.&lt;/div&gt;
&lt;div style=&quot;background-color: white; border: 0px; color: #404040; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 1rem; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; line-height: 1.375; margin-top: 18px; padding: 0px; text-align: justify; vertical-align: baseline;&quot;&gt;
No entanto, ainda é tratado como mistério por astrônomos o fato desse buraco negro ter crescido tanto e tão rápido. Christian Wolf acredita que fenômenos como esse podem ser usados como referência para observar e estudar as primeiras galáxias que se formaram no Universo.&lt;/div&gt;
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http://feeds.feedburner.com/astronomicando-BoletimDeNoticias-ObservatorioMonoceros&lt;/div&gt;</description><link>http://astronomicando.blogspot.com/2018/05/o-monstruoso-buraco-negro-recem.html</link><author>noreply@blogger.com (Leila Ossola)</author><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-4133783924183725468.post-329405153204747588</guid><pubDate>Tue, 29 May 2018 22:30:00 +0000</pubDate><atom:updated>2018-05-29T19:30:10.029-03:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">Astronomia</category><title>Poluição luminosa de grandes cidades faz estrelas &#39;desaparecerem&#39; do céu e pesquisas minguarem</title><description>&lt;span class=&quot;byline__name&quot; style=&quot;background-color: white; border: 0px; color: #404040; display: inline-block; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 14px; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; line-height: 1.28571; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Evanildo da Silveira&lt;/span&gt;&lt;span style=&quot;background-color: white; color: #404040; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 14px;&quot;&gt;&lt;/span&gt;&lt;span class=&quot;byline__title&quot; style=&quot;background-color: white; border: 0px; color: #5a5a5a; display: block; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 14px; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; line-height: 1.28571; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;De São Paulo para a BBC Brasil&lt;/span&gt;&lt;span class=&quot;byline__title&quot; style=&quot;background-color: white; border: 0px; color: #5a5a5a; display: block; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 14px; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; line-height: 1.28571; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;br /&gt;
&lt;figure class=&quot;media-landscape has-caption full-width lead&quot; style=&quot;background-color: #111111; border: 0px; clear: both; color: #404040; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 14px; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; line-height: inherit; margin: 32px -54.2188px 0px 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;image-and-copyright-container&quot; style=&quot;border: 0px; color: inherit; display: block; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 0px; position: relative; vertical-align: baseline;&quot;&gt;&lt;img alt=&quot;Vista estrelada do laboratório de Itajubá&quot; class=&quot;js-image-replace&quot; data-highest-encountered-width=&quot;660&quot; height=&quot;549&quot; src=&quot;https://ichef.bbci.co.uk/news/660/cpsprodpb/410D/production/_101635661_clebergonalves.jpg&quot; style=&quot;border: 0px; color: #bdbdbd; display: block; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: auto; letter-spacing: inherit; line-height: inherit; margin: 0px; max-width: 100%; padding: 0px; user-select: none; vertical-align: baseline; width: 645.781px;&quot; width=&quot;976&quot; /&gt;&lt;span class=&quot;off-screen&quot; style=&quot;border: 0px !important; clip: rect(1px, 1px, 1px, 1px); color: inherit; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 1px !important; letter-spacing: inherit; line-height: inherit; margin: 0px; overflow: hidden; padding: 0px !important; position: absolute !important; vertical-align: baseline; width: 1px !important;&quot;&gt;Direito de imagem&lt;/span&gt;&lt;span class=&quot;story-image-copyright&quot; style=&quot;background: rgba(0, 0, 0, 0.6); border: 0px; bottom: 0px; color: #ececec; font-family: inherit; font-size: 0.75rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: 0.25px; line-height: 1.33333; margin: 0px; padding: 3px 8px 1px; position: absolute; right: 0px; text-transform: uppercase; vertical-align: baseline;&quot;&gt;CLEBER GONÇALVES&lt;/span&gt;&lt;/span&gt;&lt;figcaption class=&quot;media-caption&quot; style=&quot;border: 0px; color: inherit; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 16px; vertical-align: baseline; visibility: visible;&quot;&gt;&lt;span class=&quot;off-screen&quot; style=&quot;border: 0px !important; clip: rect(1px, 1px, 1px, 1px); color: inherit; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 1px !important; letter-spacing: inherit; line-height: inherit; margin: 0px; overflow: hidden; padding: 0px !important; position: absolute !important; vertical-align: baseline; width: 1px !important;&quot;&gt;Image caption&lt;/span&gt;&lt;span class=&quot;media-caption__text&quot; style=&quot;border: 0px; color: #ececec; display: block; font-family: inherit; font-size: 0.8125rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: 1.23077; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;A forma como a iluminação das cidades é projetada tem dificultado a observação dos astros em Itajubá, em Minas Gerais&lt;/span&gt;&lt;/figcaption&gt;&lt;/figure&gt;&lt;div class=&quot;story-body__introduction&quot; style=&quot;background-color: white; border: 0px; color: #404040; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 1rem; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; font-weight: bold; line-height: 1.375; margin-top: 28px; padding: 0px; text-align: justify; vertical-align: baseline;&quot;&gt;
Quem olhasse para o céu na noite de 25 de janeiro de 1554, data da missa dos jesuítas José de Anchieta e Manoel da Nóbrega pela fundação da cidade de São Paulo, poderia avistar mais de 4 mil estrelas - caso não houvesse nuvens nem lua.&lt;/div&gt;
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Hoje, não veria mais do que uma dúzia. A culpada pelo &quot;desaparecimento&quot; dos astros é a iluminação artificial da metrópole, com seus milhões de lâmpadas nas ruas, residências e lojas, além dos faróis de carros. A chamada poluição luminosa não apenas reduziu a beleza do céu noturno, como também causa problemas práticos. Ela prejudica as observações astronômicos e, consequentemente, a realização de pesquisas científicas que ampliam o conhecimento sobre o universo.&lt;/div&gt;
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Segundo uma cartilha elaborada pelo Laboratório Nacional de Astronomia (LNA), localizado em Itajubá, em Minas Gerais, há três categorias de poluição luminosa. A primeira é o brilho do céu (sky glow), que é aquele aspecto alaranjado, causado pelas luzes, principalmente de lâmpadas de vapor de sódio, indevidamente direcionadas para o alto e para os lados. É pior em áreas com alta concentração de poluentes atmosféricos.&lt;/div&gt;
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A segunda é o ofuscamento (glare), luz excessiva e direta nos olhos, causando cegueira momentânea. Um exemplo é o carro que trafega com faróis altos na direção contrária a de outro veículo. Por fim, a terceira categoria de poluição luminosa é a chamada luz intrusa (trespass), que é a iluminação de um ambiente que invade o domínio de outro, como, por exemplo, aquela que vem da rua e não permite que o quarto fique totalmente escuro durante a noite.&lt;/div&gt;
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Embora os problemas que a poluição luminosa causa às observações astronômica tenham se intensificado nos últimos anos, eles não são de hoje. Segundo o pesquisador Vladímir Jearim Peña Suárez, do Projeto Olhai pro Céu Carioca, do Museu de Astronomia e Ciências Afins (MAST), unidade de pesquisa do Ministério da Ciência, quando o campus do Observatório Nacional do Rio de Janeiro foi transferido para o Morro de São Januário, em São Cristóvão, em 1922, a região era considerada suburbana, com uma densidade de população pequena e isolada.&lt;/div&gt;
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Com o passar dos anos, o conjunto de lunetas da instituição foi ficando limitado tecnologicamente, prejudicado de forma crescente pelo crescimento da população, com o consequente o aumento da iluminação externa artificial. &quot;Isso fez com que o interesse de usar estes instrumentos profissionalmente fosse diminuindo&quot;, conta Suárez. &quot;As últimas observações profissionais com a luneta de 46 centímetros, a maior do Brasil, datam de 1977.&quot;&lt;/div&gt;
&lt;figure class=&quot;media-landscape has-caption full-width&quot; style=&quot;background-color: #111111; border: 0px; clear: both; color: #404040; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 14px; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; line-height: inherit; margin: 24px -24.6449px 0px 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;image-and-copyright-container&quot; style=&quot;border: 0px; color: inherit; display: block; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 0px; position: relative; vertical-align: baseline;&quot;&gt;&lt;img alt=&quot;Vista do Laboratório Nacional de Astronomia (LNA), localizado em Itajubá, em Minas Gerais&quot; class=&quot;responsive-image__img js-image-replace&quot; data-highest-encountered-width=&quot;624&quot; datasrc=&quot;https://ichef.bbci.co.uk/news/320/cpsprodpb/12B6D/production/_101635667_itajubaanoitefotoclebergonalves.jpg&quot; height=&quot;549&quot; src=&quot;https://ichef.bbci.co.uk/news/624/cpsprodpb/12B6D/production/_101635667_itajubaanoitefotoclebergonalves.jpg&quot; style=&quot;border: 0px; color: #bdbdbd; display: block; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: auto; letter-spacing: inherit; line-height: inherit; margin: 0px; max-width: 100%; padding: 0px; transition: opacity 0.2s ease-in; user-select: none; vertical-align: baseline; width: 616.207px;&quot; width=&quot;976&quot; /&gt;&lt;span class=&quot;off-screen&quot; style=&quot;border: 0px !important; clip: rect(1px, 1px, 1px, 1px); color: inherit; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 1px !important; letter-spacing: inherit; line-height: inherit; margin: 0px; overflow: hidden; padding: 0px !important; position: absolute !important; vertical-align: baseline; width: 1px !important;&quot;&gt;Direito de imagem&lt;/span&gt;&lt;span class=&quot;story-image-copyright&quot; style=&quot;background: rgba(0, 0, 0, 0.6); border: 0px; bottom: 0px; color: #ececec; font-family: inherit; font-size: 0.75rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: 0.25px; line-height: 1.33333; margin: 0px; padding: 3px 8px 1px; position: absolute; right: 0px; text-transform: uppercase; vertical-align: baseline;&quot;&gt;CLEBER GONÇALVES&lt;/span&gt;&lt;/span&gt;&lt;figcaption class=&quot;media-caption&quot; style=&quot;border: 0px; color: inherit; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 16px; vertical-align: baseline; visibility: visible;&quot;&gt;&lt;span class=&quot;off-screen&quot; style=&quot;border: 0px !important; clip: rect(1px, 1px, 1px, 1px); color: inherit; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 1px !important; letter-spacing: inherit; line-height: inherit; margin: 0px; overflow: hidden; padding: 0px !important; position: absolute !important; vertical-align: baseline; width: 1px !important;&quot;&gt;Image caption&lt;/span&gt;&lt;span class=&quot;media-caption__text&quot; style=&quot;border: 0px; color: #ececec; display: block; font-family: inherit; font-size: 0.8125rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: 1.23077; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;A iluminação artificial tem atrapalhado a eficácia Laboratório Nacional de Astronomia (LNA), localizado em Itajubá, em Minas Gerais&lt;/span&gt;&lt;/figcaption&gt;&lt;/figure&gt;&lt;div style=&quot;background-color: white; border: 0px; color: #404040; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 1rem; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; line-height: 1.375; margin-top: 18px; padding: 0px; text-align: justify; vertical-align: baseline;&quot;&gt;
O diretor do LNA, Bruno Vaz Castilho de Souza, lembra que algo semelhante aconteceu com o Observatório de Valongo, da Universidade Federal do Rio de Janeiro (UFRJ), localizado no centro do Rio. &quot;Ele já perdeu sua capacidade de fazer pesquisa há muitas décadas&quot;, lamenta. &quot;Mas o problema se agravou mais nos últimos 15 anos, com o barateamento dos sistemas de iluminação e a política de eletrificação rural, que afeta agora os observatórios de montanha, mesmo longe dos grandes centros. É importante notar que o problema não é iluminar, é iluminar incorretamente.&quot;&lt;/div&gt;
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Um exemplo mais recente vem do Observatório Astronômico do Sertão de Itaparica (OASI), que começou a operar em março de 2011, no município de Itacuruba, no sertão pernambucano. A escolha do local para instalação do telescópio, o segundo maior do Brasil, com espelho principal de 1,0 metro de diâmetro, obedeceu a critérios técnicos e logísticos. &quot;Ainda que não seja pródigo em montanhas, o semiárido brasileiro tem baixo índice pluviométrico, com noites abertas e secas&quot;, diz Teresinha Rodrigues, da Coordenação de Astronomia e Astrofísica, do Observatório Nacional.&lt;/div&gt;
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Outra característica da região é que as cidades ainda são pequenas e afastadas umas das outras, contribuindo pouco para a poluição luminosa. &quot;Apesar disso, a iluminação urbana recentemente instalada na cidade de Rodelas (BA), próximo a Itacuruba, tornou-se altamente invasiva, com um fulgor amarelo que se destaca na noite da Caatinga num raio de dezenas de quilômetros&quot;, conta Rodrigues. &quot;No que diz respeito à interferência nas observações astronômicas, já podemos considerar que 15% do céu da região, na direção Sudoeste, estão perdidos para o trabalho de pesquisa.&quot;&lt;/div&gt;
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A principal instituição de observação astronômica do Brasil também está às voltas com a poluição luminosa. O Observatório do Pico dos Dias (OPD), instalado em 1980, a 1.864 metros de altitude, entre as cidades mineiras de Brazópolis e Piranguçu, possui quatro telescópios, inclusive o maior no Brasil, com um espelho de 1,6 metros de diâmetro. Dois telescópios com espelhos de 0.6 m e um de 0.4 m completam o conjunto.&lt;/div&gt;
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Segundo Souza, o OPD contribuiu decisivamente para o crescimento da astronomia brasileira, tendo aberto caminho para a participação nacional em projetos internacionais de grande porte, como os telescópios Gemini e SOAR. &quot;O OPD tem também papel fundamental na formação de novos profissionais para a astronomia&quot;, acrescenta.&lt;/div&gt;
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Economia na conta de luz&lt;/h2&gt;
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Tudo isso está em risco, no entanto. A vida útil do OPD como laboratório científico está sendo comprometida pelo aumento descontrolado da iluminação artificial nos seus arredores. &quot;Considerando o número de habitantes e a distância em linha reta ao observatório, as cinco cidades que mais o afetam são Brazópolis, Itajubá, Piranguçu, Campos do Jordão e Piranguinho&quot;, informa Souza. &quot;É preciso conscientizar a população e os governos municipais para a existência do problema e promover ações concretas visando impedir o avanço da poluição luminosa e, até mesmo, revertê-la.&quot;&lt;/div&gt;
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Há várias iniciativas nesse sentido, tanto no Brasil como no exterior. &quot;Os projetos em outros países com tradição astronômica estão bem mais avançadas&quot;, diz Souza. &quot;Não faltam exemplos de casos bem-sucedidos, como nas cidades de La Serena e Monte Pátria, no norte do Chile, e a ilha de La Palma, nas Ilhas Canárias (Espanha), que reduziram drasticamente a poluição luminosa e agora economizam na conta de luz.&quot;&lt;/div&gt;
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De acordo ele, isso pode ser conseguido com cuidados simples. Os sistemas de iluminação devem ser corretamente orientados, de modo a evitar que a luz artificial seja desviada na direção do céu. Nas ruas, estacionamentos e empresas o vidro refrator das lâmpadas deve ser plano, para que a luz seja dispersada para baixo.&lt;/div&gt;
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Em praças, áreas de lazer, jardins e parte externa de residências deve-se evitar luminárias esféricas (globos), muito comuns no Brasil. &quot;A regra de ouro é iluminar apenas o que for preciso e durante o tempo que for necessário&quot;, ensina Souza.&lt;/div&gt;
&lt;figure class=&quot;media-landscape has-caption full-width&quot; style=&quot;background-color: #111111; border: 0px; clear: both; color: #404040; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 14px; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; line-height: inherit; margin: 24px -24.6449px 0px 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;image-and-copyright-container&quot; style=&quot;border: 0px; color: inherit; display: block; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 0px; position: relative; vertical-align: baseline;&quot;&gt;&lt;img alt=&quot;Esquema de como deve ser a iluminação pública&quot; class=&quot;responsive-image__img js-image-replace&quot; data-highest-encountered-width=&quot;624&quot; datasrc=&quot;https://ichef.bbci.co.uk/news/320/cpsprodpb/DD4D/production/_101635665_emprego.jpg&quot; height=&quot;549&quot; src=&quot;https://ichef.bbci.co.uk/news/624/cpsprodpb/DD4D/production/_101635665_emprego.jpg&quot; style=&quot;border: 0px; color: #bdbdbd; display: block; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: auto; letter-spacing: inherit; line-height: inherit; margin: 0px; max-width: 100%; padding: 0px; transition: opacity 0.2s ease-in; user-select: none; vertical-align: baseline; width: 616.207px;&quot; width=&quot;976&quot; /&gt;&lt;span class=&quot;off-screen&quot; style=&quot;border: 0px !important; clip: rect(1px, 1px, 1px, 1px); color: inherit; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 1px !important; letter-spacing: inherit; line-height: inherit; margin: 0px; overflow: hidden; padding: 0px !important; position: absolute !important; vertical-align: baseline; width: 1px !important;&quot;&gt;Direito de imagem&lt;/span&gt;&lt;span class=&quot;story-image-copyright&quot; style=&quot;background: rgba(0, 0, 0, 0.6); border: 0px; bottom: 0px; color: #ececec; font-family: inherit; font-size: 0.75rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: 0.25px; line-height: 1.33333; margin: 0px; padding: 3px 8px 1px; position: absolute; right: 0px; text-transform: uppercase; vertical-align: baseline;&quot;&gt;SAULO&lt;/span&gt;&lt;/span&gt;&lt;figcaption class=&quot;media-caption&quot; style=&quot;border: 0px; color: inherit; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 16px; vertical-align: baseline; visibility: visible;&quot;&gt;&lt;span class=&quot;off-screen&quot; style=&quot;border: 0px !important; clip: rect(1px, 1px, 1px, 1px); color: inherit; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 1px !important; letter-spacing: inherit; line-height: inherit; margin: 0px; overflow: hidden; padding: 0px !important; position: absolute !important; vertical-align: baseline; width: 1px !important;&quot;&gt;Image caption&lt;/span&gt;&lt;span class=&quot;media-caption__text&quot; style=&quot;border: 0px; color: #ececec; display: block; font-family: inherit; font-size: 0.8125rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: 1.23077; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;A iluminação deixaria de atrapalhar observatórios caso as lâmpadas propagassem a luz para baixo&lt;/span&gt;&lt;/figcaption&gt;&lt;/figure&gt;&lt;div style=&quot;background-color: white; border: 0px; color: #404040; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 1rem; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; line-height: 1.375; margin-top: 18px; padding: 0px; text-align: justify; vertical-align: baseline;&quot;&gt;
Além das iniciativas de observatórios e cidades, há também campanhas como a Semana Internacional dos Céus Escuros 2018 (International Dark Sky Week, IDSW2018), e associações, como a The International Dark-Sky Association (Associação Internacional do Céu Escuro), que se dedicam ao tema.&lt;/div&gt;
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&quot;Em 2007, cientistas e formuladores de políticas de cerca de 50 países se reuniram em La Palma para a primeira Conferência Internacional em Defesa da Qualidade do Céu Noturno, produzindo uma declaração sobre &#39;proteger o céu como um direito básico para toda a humanidade&#39;&quot;, conta.&lt;/div&gt;
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Souza diz que no Brasil ainda há poucas iniciativas concretas, mas com o crescimento das cidades do interior próximas aos observatórios, como o Pico dos Dias (Brazópolis e Piranguçu) e o Observatório Municipal Jean Nicolini (Campinas), as ações são mais que nunca necessárias. &quot;O Observatório de Campinas tem trabalhado junto à prefeitura para criar uma legislação municipal&quot;, informa.&lt;/div&gt;
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O LNA, além de fazer campanhas com o público da região e produzir material informativo, tem feito esforços junto às prefeituras locais para a troca da iluminação incorreta. &quot;Itajubá, por exemplo, está trabalhando para a criação de Parceria Público-Privada (PPP) para fazer isso e Brazópolis e o LNA pretendem submeter projeto para o mesmo fim em breve&quot;, informa Souza.&lt;/div&gt;
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http://feeds.feedburner.com/astronomicando-BoletimDeNoticias-ObservatorioMonoceros&lt;/div&gt;</description><link>http://astronomicando.blogspot.com/2018/05/poluicao-luminosa-de-grandes-cidades.html</link><author>noreply@blogger.com (Leila Ossola)</author><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-4133783924183725468.post-4520292300088539951</guid><pubDate>Sat, 14 Apr 2018 14:07:00 +0000</pubDate><atom:updated>2018-04-14T11:07:31.056-03:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">Astronomia</category><title>We&#39;re on a mission to find thousands of new planets orbiting nearby stars. </title><description>&lt;div style=&quot;text-align: justify;&quot;&gt;
&lt;span style=&quot;background-color: white; color: #1d2129; font-family: Helvetica, Arial, sans-serif; font-size: 14px;&quot;&gt;During a two-year survey,&amp;nbsp;&lt;/span&gt;&lt;a class=&quot;profileLink&quot; data-hovercard-prefer-more-content-show=&quot;1&quot; data-hovercard=&quot;/ajax/hovercard/page.php?id=532821116771980&amp;amp;extragetparams=%7B%22fref%22%3A%22mentions%22%7D&quot; href=&quot;https://www.facebook.com/NASATESS/?fref=mentions&quot; style=&quot;background-color: white; color: #365899; cursor: pointer; font-family: Helvetica, Arial, sans-serif; font-size: 14px; text-decoration-line: none;&quot;&gt;NASA&#39;s Transiting Exoplanet Survey Satellite - TESS&lt;/a&gt;&lt;span style=&quot;background-color: white; color: #1d2129; font-family: Helvetica, Arial, sans-serif; font-size: 14px;&quot;&gt;&amp;nbsp;will study 85 percent of the sky, looking for signs of planets ranging from Earth-size to larger than Jupiter.&amp;nbsp;&lt;/span&gt;&lt;/div&gt;
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&lt;a href=&quot;https://www.facebook.com/NASA/videos/10156187880171772/&quot;&gt;Watch to learn more&lt;/a&gt;&lt;/div&gt;
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NASA&lt;/div&gt;
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http://feeds.feedburner.com/astronomicando-BoletimDeNoticias-ObservatorioMonoceros&lt;/div&gt;</description><link>http://astronomicando.blogspot.com/2018/04/were-on-mission-to-find-thousands-of.html</link><author>noreply@blogger.com (Leila Ossola)</author><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-4133783924183725468.post-139536489659358291</guid><pubDate>Sat, 14 Apr 2018 14:02:00 +0000</pubDate><atom:updated>2018-04-14T11:02:23.592-03:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">Astronomia</category><title>Cancellata l’ipotesi della vita su Proxima b, sosia della Terra</title><description>&lt;h2 class=&quot;news-stit&quot; style=&quot;background-color: white; border: 0px; box-sizing: border-box; color: #8c8c8c; font-family: Arial, Helvetica, sans-serif; font-size: 20px; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; font-weight: 500; line-height: 22px; margin: 0px 0px 10px; padding: 0px; vertical-align: baseline;&quot;&gt;
A causa di una eruzione gigantesca sulla sua stella Proxima Centauri&lt;/h2&gt;
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&lt;time style=&quot;border: 0px; box-sizing: border-box; display: inline-block; font-family: inherit; font-size: 12px; font-stretch: inherit; font-variant: inherit; font-weight: inherit; line-height: 13px; margin: 5px 0px 0px; padding: 0px 7px 0px 0px; vertical-align: baseline;&quot;&gt;&lt;span style=&quot;border: 0px; box-sizing: border-box; display: inline-block; font-family: inherit; font-stretch: inherit; font-variant: inherit; font-weight: inherit; line-height: 14px; margin: 5px 0px 0px; padding: 0px 7px 0px 0px; vertical-align: baseline;&quot;&gt;13 aprile 2018&lt;/span&gt;&lt;span style=&quot;border: 0px; box-sizing: border-box; display: inline-block; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 5px 0px 0px; padding: 0px 7px 0px 0px; vertical-align: baseline;&quot;&gt;10:52&lt;/span&gt;&lt;/time&gt;&lt;/div&gt;
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&lt;img alt=&quot;Un&#39;eruzione gigantesca avvenuta sulla stella Proxima Centauri ha sconvolto Proxima b (fonte: NASA, ESA, &amp;amp; G. Bacon/STScI) © Ansa&quot; class=&quot;img-responsive&quot; src=&quot;http://www.ansa.it/webimages/ch_620x438/2018/4/12/947279d298a1ab8fe3fd4731c9febb23.png&quot; style=&quot;border: 0px; box-sizing: border-box; display: block; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: auto; line-height: inherit; margin: 0px 0px 1em; max-width: 100%; padding: 0px; text-align: justify; vertical-align: middle; width: 630px;&quot; /&gt;&lt;span class=&quot;photo-green-ico&quot; style=&quot;background: url(&amp;quot;/canale_scienza_tecnica/img/ico_photo_60x60.png&amp;quot;) no-repeat; border: 0px; box-sizing: border-box; display: block; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 60px; line-height: inherit; margin: 0px; overflow: hidden; padding: 0px; position: absolute; right: 12px; text-align: justify; text-indent: 150%; top: 10px; vertical-align: baseline; white-space: nowrap; width: 60px;&quot;&gt;FOTO&lt;/span&gt;&lt;/div&gt;
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&lt;li style=&quot;color: #333333; font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit; text-align: justify;&quot;&gt;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;a href=&quot;http://www.ansa.it/canale_scienza_tecnica/notizie/ragazzi/abc_scienza/2012/04/02/eruzioni-solari_32710b05-de1c-11e6-9836-00505695d1bc.html&quot; style=&quot;background-color: transparent; border-bottom-color: rgb(151, 153, 154); border-bottom-style: dotted; border-image: initial; border-left-color: initial; border-left-style: initial; border-right-color: initial; border-right-style: initial; border-top-color: initial; border-top-style: initial; border-width: 0px 0px 1px; box-sizing: border-box; color: #178131; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; text-decoration-line: none; vertical-align: baseline;&quot;&gt;Un&#39;eruzione&amp;nbsp;&lt;/a&gt;gigantesca&lt;/strong&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;avvenuta nel&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;marzo 2016&lt;/strong&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;su&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;a href=&quot;http://www.ansa.it/scienza/notizie/rubriche/spazioastro/2016/11/09/parte-la-caccia-a-etradiotelescopio-cerca-vita-aliena_2f0b0257-7419-49ff-82ef-6245aa7c462a.html&quot; style=&quot;background-color: transparent; border-bottom-color: rgb(151, 153, 154); border-bottom-style: dotted; border-image: initial; border-left-color: initial; border-left-style: initial; border-right-color: initial; border-right-style: initial; border-top-color: initial; border-top-style: initial; border-width: 0px 0px 1px; box-sizing: border-box; color: #178131; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; text-decoration-line: none; vertical-align: baseline;&quot;&gt;Proxima Centauri&lt;/a&gt;&lt;/strong&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;, la&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;stella&lt;/strong&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;più vicina al Sole, ha sconvolto l pianeta&amp;nbsp;&lt;/span&gt;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Proxima b&lt;/strong&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;, rendendo impossibile la sopravvivenza di eventuali&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;forme di vita&lt;/strong&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;. Lo indica la ricerca pubblicata sulla rivista&amp;nbsp;Astrophysical Journal Letters e coordinata dall&#39;Università del Colorado a Boulder. Finora&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;a href=&quot;http://www.ansa.it/canale_scienza_tecnica/notizie/spazio_astronomia/2017/05/16/la-stella-piu-vicina-ha-un-pianeta-che-potrebbe-ospitare-la-vita-_a5e42dad-20f8-498f-8641-b05b601b1a6a.html&quot; style=&quot;background-color: transparent; border-bottom-color: rgb(151, 153, 154); border-bottom-style: dotted; border-image: initial; border-left-color: initial; border-left-style: initial; border-right-color: initial; border-right-style: initial; border-top-color: initial; border-top-style: initial; border-width: 0px 0px 1px; box-sizing: border-box; color: #178131; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; text-decoration-line: none; vertical-align: baseline;&quot;&gt;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;considerato un possibile sosia della Terra&lt;/strong&gt;&lt;/a&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;, Proxima b è un pianeta roccioso ma&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;a href=&quot;http://www.ansa.it/canale_scienza_tecnica/notizie/spazio_astronomia/2017/08/01/pianeta-che-somiglia-alla-terra-si-fa-sfuggire-latmosfera_e5c3b040-ee43-453b-90ee-67ecee52b371.html&quot; style=&quot;background-color: transparent; border-bottom-color: rgb(151, 153, 154); border-bottom-style: dotted; border-image: initial; border-left-color: initial; border-left-style: initial; border-right-color: initial; border-right-style: initial; border-top-color: initial; border-top-style: initial; border-width: 0px 0px 1px; box-sizing: border-box; color: #178131; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; text-decoration-line: none; vertical-align: baseline;&quot;&gt;i dubbi&lt;/a&gt;&lt;/strong&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;sulla sua capacità di ospitare la vita sono stati finra molti a causa della vicinanza con la sua stella.&lt;/span&gt;&lt;/li&gt;
&lt;li style=&quot;color: #333333; font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit; text-align: justify;&quot;&gt;&amp;nbsp;&quot;Un&#39;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;eruzione simile nel Sole&amp;nbsp;&lt;/strong&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;non sarebbe stata devastante per la Terra&lt;/strong&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&quot;, osserva Riccardo Claudi, dell&#39;Osservatorio di Padova dell&#39;Istituto Nazionale di Astrofisica (Inaf). &quot;Quando si verificano questi fenomeni, da una stella si diramano&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;particelle ad alta energia&lt;/strong&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;, i&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;raggi cosmici solari&lt;/strong&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;, che possono erodere l&#39;atmosfera del pianeta vicino. Nel caso del Sole la distanza della Terra e&#39; abbastanza grande e ci mette al riparo, mentre nel caso di&amp;nbsp;Proxima Centauri la&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;distanza è minore&lt;/strong&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;e l&#39;&lt;/span&gt;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;effetto&lt;/strong&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;è&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;distruttivo&lt;/strong&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&quot;.&amp;nbsp;&lt;/span&gt;&lt;/li&gt;
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&lt;li style=&quot;text-align: justify;&quot;&gt;&quot;D&#39;altra parte - conclude il ricercatore - è questa minore distanza che rende possibili temperature adatte alla formazione di acqua liquida e di eventuali forme di vita. Questo perchè la stella di&amp;nbsp;&lt;strong style=&quot;border: 0px; box-sizing: border-box; color: #333333; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Proxima Centauri&lt;/strong&gt;&lt;span style=&quot;color: #333333; font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;span style=&quot;color: #333333; font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;è una stella fredda, a differenza del Sole, e quindi la potenza che irradia è inferiore&quot;.&lt;/span&gt;&lt;/li&gt;
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http://feeds.feedburner.com/astronomicando-BoletimDeNoticias-ObservatorioMonoceros&lt;/div&gt;</description><link>http://astronomicando.blogspot.com/2018/04/cancellata-lipotesi-della-vita-su.html</link><author>noreply@blogger.com (Leila Ossola)</author><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-4133783924183725468.post-2033607606224286681</guid><pubDate>Sat, 14 Apr 2018 14:00:00 +0000</pubDate><atom:updated>2018-04-14T11:00:38.395-03:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">Astronomia</category><title>Scoperto uno &#39;zoo&#39; di futuri pianeti</title><description>&lt;h2 class=&quot;news-stit&quot; style=&quot;background-color: white; border: 0px; box-sizing: border-box; color: #8c8c8c; font-family: Arial, Helvetica, sans-serif; font-size: 20px; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; font-weight: 500; line-height: 22px; margin: 0px 0px 10px; padding: 0px; vertical-align: baseline;&quot;&gt;
Sono dischi di polveri attorno a giovani stelle, tutti diversi fra loro&lt;/h2&gt;
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&lt;li class=&quot;google button-wrap&quot; style=&quot;background: none no-repeat; border: 0px; box-sizing: border-box; clear: none; display: block; float: left; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: auto; line-height: inherit; margin: 0px; overflow: hidden; padding: 0px; vertical-align: baseline; width: auto;&quot;&gt;&lt;a class=&quot;bt-news-gplus&quot; href=&quot;https://www.blogger.com/null&quot; style=&quot;background: url(&amp;quot;/canale_scienza_tecnica/img/ico_news_social.png&amp;quot;) 0px -200px no-repeat; border: 0px; box-sizing: border-box; display: block; float: left; font-family: inherit; font-stretch: inherit; font-variant: inherit; font-weight: inherit; height: 32px; line-height: 22px; margin: 0px 4px 0px 0px; overflow: hidden; padding: 0px; text-indent: 150%; vertical-align: baseline; white-space: nowrap; width: 32px;&quot; title=&quot;Google +&quot;&gt;Google +&lt;/a&gt;&lt;/li&gt;
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&lt;img alt=&quot;Scoperte 9 &#39;fabbriche&#39; di pianeti distanti 230 anni luce (fonte: ESO/H. Avenhaus et al./E. Sissa et al./DARTT-S and SHINE collaborations) © Ansa&quot; class=&quot;img-responsive&quot; src=&quot;http://www.ansa.it/webimages/ch_620x438/2018/4/13/e5a40595a77b766baea42f6a7c7e1ec4.jpg&quot; style=&quot;border: 0px; box-sizing: border-box; display: block; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: auto; line-height: inherit; margin: 0px 0px 1em; max-width: 100%; padding: 0px; vertical-align: middle; width: 630px;&quot; /&gt;&lt;span class=&quot;photo-green-ico&quot; style=&quot;background: url(&amp;quot;/canale_scienza_tecnica/img/ico_photo_60x60.png&amp;quot;) no-repeat; border: 0px; box-sizing: border-box; display: block; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 60px; line-height: inherit; margin: 0px; overflow: hidden; padding: 0px; position: absolute; right: 12px; text-indent: 150%; top: 10px; vertical-align: baseline; white-space: nowrap; width: 60px;&quot;&gt;FOTO&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;news-caption hidden-xs&quot; style=&quot;border: 0px; bottom: 0px; box-sizing: border-box; color: #595959; display: table; font-size: 11px; font-stretch: normal; font-variant-east-asian: normal; font-variant-numeric: normal; height: 43px; line-height: 13px; margin: 0px; min-width: 407px; padding: 0px 0px 0px 10px; position: absolute; vertical-align: baseline; width: 630px;&quot;&gt;
&lt;span style=&quot;border: 0px; box-sizing: border-box; display: table-cell; font-family: inherit; font-size: inherit; font-stretch: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; max-width: 320px; padding: 0px; vertical-align: middle;&quot;&gt;Scoperte 9 &#39;fabbriche&#39; di pianeti distanti 230 anni luce (fonte: ESO/H. Avenhaus et al./E. Sissa et al./DARTT-S and SHINE collaborations) © ANSA/Ansa&lt;/span&gt;&lt;div class=&quot;link-gallery rf&quot; style=&quot;background: url(&amp;quot;/canale_scienza_tecnica/img/dot_4x4_green.png&amp;quot;) repeat-y; border: 0px; box-sizing: border-box; display: table-cell; float: right !important; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 25px; line-height: inherit; margin: 8px 6px 0px 10px; padding: 0px 0px 0px 14px; vertical-align: middle; width: 110px;&quot;&gt;
&lt;a href=&quot;https://www.blogger.com/null&quot; style=&quot;background-color: transparent; border: 0px; box-sizing: border-box; color: #667769; display: block; font-family: inherit; font-size: 10px; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: 12px; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;plus&quot; style=&quot;border: 0px; box-sizing: border-box; color: #a9baad; float: right; font-size: 30px; font-stretch: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-weight: bold; line-height: 24px; margin: 0px 0px 0px 5px; padding: 0px; vertical-align: baseline; width: 20px;&quot;&gt;+&lt;/span&gt;CLICCA PER INGRANDIRE&lt;/a&gt;&lt;/div&gt;
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&lt;div style=&quot;border: 0px; box-sizing: border-box; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; line-height: inherit; margin-bottom: 10px; padding: 0px; vertical-align: baseline;&quot;&gt;
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&lt;div style=&quot;color: #333333; font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit; text-align: justify;&quot;&gt;
&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;Scoperto un vero e proprio &#39;&lt;/span&gt;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;zoo&lt;/strong&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&#39;&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;di &#39;fabbriche di pianeti&lt;/strong&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&#39;, cioè&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;dischi di polveri e gas&lt;/strong&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;intorno a&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;giovani stelle&lt;/strong&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;. Le immagini che li immortalano sono strepitose e mostrano la differenza fra queste strutture. Alcuni dischi ospitano&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;anelli di polveri luminose&lt;/strong&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;, altri di&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;polveri più scure&lt;/strong&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;, ma tutti rivelano indizi utili a capire come potrebbe essere stato il Sistema Solare&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;oltre 4&amp;nbsp;miliardi di anni fa&lt;/strong&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;. La scoperta, pubblicata in due ricerche sulla rivista Astronomy &amp;amp; Astrophysics, parla anche italiano, con il gruppo dell&#39;Istituto Nazionale di Astrofisica (Inaf), coordinato da Elena Sissa.&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;color: #333333; font-family: Arial, Helvetica, sans-serif;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/div&gt;
&lt;span style=&quot;color: #333333; font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&lt;div style=&quot;text-align: justify;&quot;&gt;
&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;In tutto sono stati individuati&amp;nbsp;&lt;/span&gt;&lt;span style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;9 dischi&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;intorno ad altrettante stelle, che hanno circa&amp;nbsp;&lt;/span&gt;&lt;span style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;10 milioni di anni&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;e si trovano a distanze comprese fra&amp;nbsp;&lt;/span&gt;&lt;span style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;230 e 550 anni luce dalla Terra&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;. Cruciali sono state le immagini catturate dallo strumento Sphere, installato sul Very Large Telescope (VLT) dell&#39;Osservatorio Europeo Meridionale in Cile, che hanno permesso di identificare le strutture e vedere che sono molto diverse tra loro.&lt;/span&gt;&lt;/div&gt;
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&lt;div style=&quot;border: 0px; box-sizing: border-box; color: #333333; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin-bottom: 10px; padding: 0px; text-align: justify; vertical-align: baseline;&quot;&gt;
&lt;span style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;img alt=&quot;&quot; height=&quot;346&quot; src=&quot;http://www.ansa.it/webimages/large/2018/4/13/a7e55f3b8e753881f5fe0d11b19b8719.jpg&quot; style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: middle;&quot; width=&quot;366&quot; /&gt;&lt;/span&gt;&lt;/div&gt;
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&lt;div style=&quot;color: #333333; font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit; text-align: justify;&quot;&gt;
&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;Scoperte 9 &#39;fabbriche&#39; di pianeti distanti 230 anni luce (fonte: ESO/H. Avenhaus et al./E. Sissa et al./DARTT-S and SHINE collaborations)&lt;/span&gt;&lt;/div&gt;
&lt;div style=&quot;text-align: justify;&quot;&gt;
&lt;span style=&quot;color: #333333;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/div&gt;
&lt;span style=&quot;color: #333333; font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&lt;div style=&quot;text-align: justify;&quot;&gt;
&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&quot;I&amp;nbsp;&lt;/span&gt;&lt;span style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;dischi sono tutti differenti&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;, in particolare nelle dimensioni&quot; ha rilevato Henning Avenhaus, dell&#39;Istituto tedesco Max Planck per l&#39;astronomia e del Politecnico di Zurigo, che ha coordinato una delle ricerche. Alcuni dischi hanno il raggio pari a&amp;nbsp;&lt;/span&gt;&lt;span style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;80 volte&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;la distanza fra il Sole e la Terra, altri pari a&amp;nbsp;&lt;/span&gt;&lt;span style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;700 volte&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;. Inoltre, alcuni ospitano solo polveri e gas, in altri le polveri si sono già aggregate per formare i&amp;nbsp;&lt;/span&gt;&lt;span style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;mattoni dei pianeti&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;, come il disco individuato dal gruppo italiano attorno alla stella GSC 07396-00759, che è singolarissima.&amp;nbsp;&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;color: #333333; font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&lt;div style=&quot;text-align: justify;&quot;&gt;
&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;La&amp;nbsp;&lt;/span&gt;&lt;span style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;stella&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;, infatti, è legata, tramite la&amp;nbsp;&lt;/span&gt;&lt;span style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;forza di gravità&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;, a una&amp;nbsp;&lt;/span&gt;&lt;span style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;coppia di stelle&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;a sua volta circondata da un altro disco che era già noto. La struttura attorno alla coppia &quot;è&amp;nbsp;&lt;/span&gt;&lt;span style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;ricca di gas&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;ed è in una fase evolutiva precedente a quella del disco di GSC 7396-0759, sebbene i due sistemi siano nati assieme&quot; ha detto Sissa. Questo trio appare quindi come un laboratorio naturale per lo studio dell&#39;evoluzione di queste strutture &quot;che ci aspettiamo possa essere diversa per le stelle singole e per quelle binarie&quot;.&lt;/span&gt;&lt;/div&gt;
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http://feeds.feedburner.com/astronomicando-BoletimDeNoticias-ObservatorioMonoceros&lt;/div&gt;</description><link>http://astronomicando.blogspot.com/2018/04/scoperto-uno-zoo-di-futuri-pianeti.html</link><author>noreply@blogger.com (Leila Ossola)</author><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-4133783924183725468.post-9111963199948540043</guid><pubDate>Sat, 14 Apr 2018 13:58:00 +0000</pubDate><atom:updated>2018-04-14T10:58:28.399-03:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">Astronomia</category><title>Sul web la paura del pianeta Nibiru, ma non esiste</title><description>&lt;h2 class=&quot;news-stit&quot; style=&quot;background-color: white; border: 0px; box-sizing: border-box; color: #8c8c8c; font-family: Arial, Helvetica, sans-serif; font-size: 20px; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; font-weight: 500; line-height: 22px; margin: 0px 0px 10px; padding: 0px; vertical-align: baseline;&quot;&gt;
La bufala torna per la quarta volta in 15 anni&lt;/h2&gt;
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&lt;time style=&quot;border: 0px; box-sizing: border-box; display: inline-block; font-family: inherit; font-size: 12px; font-stretch: inherit; font-variant: inherit; font-weight: inherit; line-height: 13px; margin: 5px 0px 0px; padding: 0px 7px 0px 0px; vertical-align: baseline;&quot;&gt;&lt;span style=&quot;border: 0px; box-sizing: border-box; display: inline-block; font-family: inherit; font-stretch: inherit; font-variant: inherit; font-weight: inherit; line-height: 14px; margin: 5px 0px 0px; padding: 0px 7px 0px 0px; vertical-align: baseline;&quot;&gt;13 aprile 2018&lt;/span&gt;&lt;span style=&quot;border: 0px; box-sizing: border-box; display: inline-block; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 5px 0px 0px; padding: 0px 7px 0px 0px; vertical-align: baseline;&quot;&gt;19:48&lt;/span&gt;&lt;/time&gt;&lt;/div&gt;
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&lt;img alt=&quot;Rappresentazione artistica del misterioso Pianeta 9, in passato identificato con Nimuru, il pianeta inesistente che secondo una leggenda metropolitana minaccerebbe la Terra (fonte: Caltech) © Ansa&quot; class=&quot;img-responsive&quot; src=&quot;http://www.ansa.it/webimages/ch_620x438/2018/4/13/21d6ed65c2b11877b9db24d858597e01.jpg&quot; style=&quot;border: 0px; box-sizing: border-box; display: block; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: auto; line-height: inherit; margin: 0px 0px 1em; max-width: 100%; padding: 0px; vertical-align: middle; width: 630px;&quot; /&gt;&lt;/div&gt;
&lt;div class=&quot;news-caption hidden-xs&quot; style=&quot;border: 0px; bottom: 0px; box-sizing: border-box; color: #595959; display: table; font-size: 11px; font-stretch: normal; font-variant-east-asian: normal; font-variant-numeric: normal; height: 43px; line-height: 13px; margin: 0px; min-width: 407px; padding: 0px 0px 0px 10px; position: absolute; vertical-align: baseline; width: 630px;&quot;&gt;
&lt;span style=&quot;border: 0px; box-sizing: border-box; display: table-cell; font-family: inherit; font-size: inherit; font-stretch: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; max-width: 320px; padding: 0px; vertical-align: middle;&quot;&gt;Rappresentazione artistica del misterioso Pianeta 9, in passato identificato con Nimuru, il pianeta inesistente che secondo una leggenda metropolitana minaccerebbe la Terra (fonte: Caltech) © ANSA/Ansa&lt;/span&gt;&lt;div class=&quot;link-gallery rf&quot; style=&quot;background: url(&amp;quot;/canale_scienza_tecnica/img/dot_4x4_green.png&amp;quot;) repeat-y; border: 0px; box-sizing: border-box; display: table-cell; float: right !important; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 25px; line-height: inherit; margin: 8px 6px 0px 10px; padding: 0px 0px 0px 14px; vertical-align: middle; width: 110px;&quot;&gt;
&lt;a href=&quot;https://www.blogger.com/null&quot; style=&quot;background-color: transparent; border: 0px; box-sizing: border-box; color: #667769; display: block; font-family: inherit; font-size: 10px; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: 12px; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;plus&quot; style=&quot;border: 0px; box-sizing: border-box; color: #a9baad; float: right; font-size: 30px; font-stretch: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-weight: bold; line-height: 24px; margin: 0px 0px 0px 5px; padding: 0px; vertical-align: baseline; width: 20px;&quot;&gt;+&lt;/span&gt;CLICCA PER INGRANDIRE&lt;/a&gt;&lt;/div&gt;
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&lt;div class=&quot;news-txt&quot; itemprop=&quot;articleBody&quot; style=&quot;border: 0px; box-sizing: border-box; clear: both; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;
&lt;div style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin-bottom: 10px; padding: 0px; text-align: justify; vertical-align: baseline;&quot;&gt;
Il pianeta&amp;nbsp;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Nibiru&lt;/strong&gt;&amp;nbsp;dovrebbe&amp;nbsp;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;colpire la Terra&lt;/strong&gt;&amp;nbsp;il&amp;nbsp;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;23 aprile 2018&lt;/strong&gt;, ma&amp;nbsp;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;niente paura: non esiste&lt;/strong&gt;. Per la&amp;nbsp;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;quarta volta in 15 anni&lt;/strong&gt;&amp;nbsp;il misterioso pianeta tornerebbe a minacciare il nostro, ma è soltanto una&amp;nbsp;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;bufala&lt;/strong&gt;&amp;nbsp;che sta correndo sul web, proprio come era avvenuto nel&amp;nbsp;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;2003&lt;/strong&gt;, nel&amp;nbsp;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;2012&lt;/strong&gt;&amp;nbsp;e nel&amp;nbsp;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;2017&lt;/strong&gt;.&lt;/div&gt;
&lt;div style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin-bottom: 10px; padding: 0px; text-align: justify; vertical-align: baseline;&quot;&gt;
Non esistono né il pianeta né il rischio della fine del mondo, ma la bufala è chiaramente ispirata al film Melancholia, nel quale la Terra è minacciata da una catastrofe simile. Ad alimentare la leggenda metropolitana è David Meade, come si fa chiamare l&#39;autore del libro &#39;Planet X, The 2017 Arrival&#39;, secondo il quale il misterioso pianeta avrebbe colpito la Terra il 23 settembre 2017, in base a una sua reinterpretazione dell&#39;Apocalisse della Bibbia.&lt;/div&gt;
&lt;div style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin-bottom: 10px; padding: 0px; text-align: justify; vertical-align: baseline;&quot;&gt;
Adesso la&amp;nbsp;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;data&lt;/strong&gt;&amp;nbsp;si è&amp;nbsp;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;spostata in avanti di un anno&lt;/strong&gt;&amp;nbsp;e il 23 aprile 2018 il pianeta dovrebbe sfiorare la Terra, sconvolgendone orbita e inclinazione, con conseguenze catastrofiche per l&#39;umanità. &quot;È un tema assolutamente&amp;nbsp;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;privo di fondamento&lt;/strong&gt;,&amp;nbsp;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;non c&#39;è nessuna base scientifica&lt;/strong&gt;&amp;nbsp;a sostegno della&amp;nbsp;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;fantasiosa ipotesi&lt;/strong&gt;&quot;, ha rilevato l&#39;astrofisico Gianluca Masi, responsabile del Virtual Telescope. La&amp;nbsp;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;bufala&lt;/strong&gt;&amp;nbsp;di Nibiru&amp;nbsp;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;va avanti dal 1995&lt;/strong&gt;, quando l&#39;americana Nancy Lieder aveva affermato di avere un chip nel cervello che le permetteva di comunicare con gli alieni del sistema di stelle Zeta Reticuli.&lt;/div&gt;
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Gli alieni le avrebbero detto che il corpo celeste, che si troverebbe ai confini del Sistema Solare, sarebbe passato vicino alla Terra nel maggio 2003, con conseguenze catastrofiche. Ma il pianeta ha mancato quell&#39;appuntamento e la donna ha spostato la previsione al 2012, quando la bufala è dilagata su internet, al punto che la Nasa è dovuta scendere in campo per dire che il pianeta non esiste e la Terra non corre alcun pericolo di questo tipo.&lt;/div&gt;
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&quot;E&#39; una&amp;nbsp;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;leggenda metropolitana dura a morire&lt;/strong&gt;&amp;nbsp;ed è on demand: è tirata in ballo e rivisitata nelle più svariate occasioni - ha detto Masi - anche quando c&#39;è stata l&#39;ipotesi, non confermata, dell&#39;esistenza del&amp;nbsp;&lt;strong style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;a href=&quot;http://www.ansa.it/scienza/notizie/rubriche/spazioastro/2016/10/23/torna-a-farsi-il-vivo-il-misterioso-pianeta-9-_06aa1800-6885-4f8c-adab-cc1d87630edb.html&quot; style=&quot;background-color: transparent; border-bottom-color: rgb(151, 153, 154); border-bottom-style: dotted; border-image: initial; border-left-color: initial; border-left-style: initial; border-right-color: initial; border-right-style: initial; border-top-color: initial; border-top-style: initial; border-width: 0px 0px 1px; box-sizing: border-box; color: #178131; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; text-decoration-line: none; vertical-align: baseline;&quot;&gt;pianeta 9&lt;/a&gt;&lt;/strong&gt;&amp;nbsp;ai confini del Sistema Solare&quot;. Nibiru era stato chiamato in causa anche in occasione di un&#39;altra fake news virale, quella fine del mondo prevista dai Maya per il&amp;nbsp;&lt;a href=&quot;http://www.ansa.it/scienza/notizie/rubriche/terrapoli/2012/11/09/2012-Maya-avvenuto-quasi-mille-anni-fa-_7765812.html&quot; style=&quot;background-color: transparent; border-bottom-color: rgb(151, 153, 154); border-bottom-style: dotted; border-image: initial; border-left-color: initial; border-left-style: initial; border-right-color: initial; border-right-style: initial; border-top-color: initial; border-top-style: initial; border-width: 0px 0px 1px; box-sizing: border-box; color: #178131; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; text-decoration-line: none; vertical-align: baseline;&quot;&gt;21 dicembre 2012&lt;/a&gt;.&lt;/div&gt;
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L&#39;&lt;strong&gt;universo&lt;/strong&gt; si &lt;strong&gt;espande&lt;/strong&gt; molto &lt;strong&gt;più rapidamente&amp;nbsp;&lt;/strong&gt;del previsto: la sua &lt;strong&gt;velocità&lt;/strong&gt; è del &lt;strong&gt;10% superiore a quella rilevata finora&lt;/strong&gt;. Lo indica &lt;strong&gt;la misura più precisa mai ottenuta di questo fenomeno&lt;/strong&gt;, pubblicata sull&#39;Astrophysical Journal.&lt;br /&gt;
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A &lt;strong&gt;100 anni&lt;/strong&gt; dai primi calcoli della velocità di espansione dell&#39;universo, il risultato apre la finestra su un &lt;strong&gt;lato misterioso del cosmo&lt;/strong&gt;&amp;nbsp;perché fornisce i &lt;strong&gt;primi indizi&lt;/strong&gt; di una &lt;strong&gt;nuova fisica&lt;/strong&gt;, ossia di una fisica le cui regole non corrispondono più a quelle previste dalla teoria di riferimento, il &lt;a href=&quot;http://www.ansa.it/canale_scienza_tecnica/notizie/approfondimenti/fisica_matematica/2011/08/22/il-punto-di-riferimento-della-fisica-moderna_32673151-de1c-11e6-9836-00505695d1bc.html&quot;&gt;&lt;strong&gt;Modello Standard&lt;/strong&gt;&lt;/a&gt;.&lt;br /&gt;
&lt;img alt=&quot;&quot; height=&quot;346&quot; src=&quot;http://www.ansa.it/webimages/large/2018/2/23/b3b7637f365ad21891695fe55fe851cf.jpg&quot; width=&quot;406&quot; /&gt;&lt;br /&gt;
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Il risultato si deve anche a uno dei papà della scoperta che l&#39;espansione sta accelerando, il Nobel per la fisica Adam Riess. Del suo gruppo, presso l&#39;americano Space Telescope Science Institute (STScI) e la Johns Hopkins University, fa parte l&#39;italiano Stefano Casertano.&lt;/div&gt;
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Possibile grazie ai dati del &lt;strong&gt;telescopio spaziale Hubble&lt;/strong&gt;, dedicato all&#39;astrofisico statunitense che ha scoperto l&#39;espansione dell&#39;universo, il risultato &quot;apre le porte a un viaggio nel mistero&quot;, ha detto all&#39;ANSA il vicepresidente dell&#39;Istituto Nazionale di Fisica Nucleare (Infn), Antonio Masiero. &quot;Vediamo segnali arrivarci da qualche mondo nuovo, ma - ha aggiunto - non sappiamo né come sia fatto, né dove si trovi&quot;.&lt;/div&gt;
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I ricercatori hanno calcolato la velocità di espansione dell&#39;universo misurando le &lt;strong&gt;distanze di lontane galassie&lt;/strong&gt;&amp;nbsp;osservate dal telescopio gestito da Nasa e Agenzia Spaziale Europea (Esa). In particolare, Hubble ha osservato stelle pulsanti chiamate &lt;strong&gt;Cefeidi&lt;/strong&gt;, caratterizzate dalla relazione regolare tra il periodo di pulsazione e la luminosità e per questo sono usate come &lt;strong&gt;punti di riferimento&lt;/strong&gt; per misurare le distanze delle galassie.&lt;/div&gt;
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Le stelle utilizzate questa sono &lt;strong&gt;10 volte più distanti&lt;/strong&gt; di quelle utilizzate in precedenza e hanno permesso di calcolare che &lt;strong&gt;le galassie si allontanano tra loro a un ritmo più rapido del previsto&lt;/strong&gt; e che l&#39;universo si sta espandendo a una velocità superiore del 10%, rispetto a quella calcolata grazie alla foto del &lt;a href=&quot;http://www.ansa.it/scienza/notizie/rubriche/spazioastro/2014/08/04/corretta-la-mappa-del-baby-universo-del-satellite-planck_d3a324a2-f59f-47b9-a726-c6b47a97d8e9.html&quot;&gt;&lt;strong&gt;baby universo &#39;catturata&#39; dal satellite Planck&lt;/strong&gt;&lt;/a&gt;, dell&#39;Esa.&lt;/div&gt;
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Secondo i fisici questa incongruenza sarebbe dovuta a &lt;strong&gt;qualcosa di sconosciuto nella composizione dell&#39;universo&lt;/strong&gt;, che mette in crisi le teorie di riferimento della cosmologia. &quot;&lt;strong&gt;Come in un giallo&lt;/strong&gt;, la nuova misura ci dà un &lt;strong&gt;indizio importante e consistente della nuova fisica&lt;/strong&gt;&quot; ha detto Masiero. Secondo Riess, tutte le possibili spiegazioni sono da cercare nel &lt;strong&gt;lato oscuro dell&#39;universo&lt;/strong&gt;.&lt;/div&gt;
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Una possibilità è che il motore che spinge l&#39;universo a espandersi, cioè l&#39;&lt;a href=&quot;http://www.ansa.it/scienza/notizie/approfondimenti/spazioastro/2011/04/18/visualizza_new.html_900497804.html&quot;&gt;&lt;strong&gt;energia oscura&lt;/strong&gt;&lt;/a&gt;, che occuperebbe il &lt;strong&gt;75%&lt;/strong&gt; del cosmo, possa allontanare le galassie l&#39;una dall&#39;altra con una &lt;strong&gt;forza ancora maggiore del previsto&lt;/strong&gt;. Ciò significa che &lt;strong&gt;l&#39;accelerazione potrebbe non avere un valore costante&lt;/strong&gt;, variando nel tempo.&lt;/div&gt;
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&lt;strong&gt;Un&#39;altra ipotesi&lt;/strong&gt; è l&#39;esistenza di &lt;strong&gt;nuove particelle &lt;/strong&gt;simili ai neutrini, ma ancora più inafferrabili, i cosiddetti &lt;strong&gt;neutrini sterili&lt;/strong&gt;. Infine un&#39;altra allettante possibilità è che la &lt;a href=&quot;http://www.ansa.it/canale_scienza_tecnica/notizie/approfondimenti/spazio_astronomia/2011/04/18/misteriosa-invisibile-e-abbondante_32671d30-de1c-11e6-9836-00505695d1bc.html&quot;&gt;&lt;strong&gt;materia oscura&lt;/strong&gt;&lt;/a&gt;&amp;nbsp;, ossia la materia invisibile che occupa circa il 25% del cosmo, &lt;strong&gt;interagisca con la materia visibile&amp;nbsp;più fortemente&amp;nbsp;&lt;/strong&gt; di quanto si pensasse.&lt;br /&gt;
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Our &lt;a class=&quot;profileLink&quot; data-hovercard-prefer-more-content-show=&quot;1&quot; data-hovercard=&quot;/ajax/hovercard/page.php?id=157048324896449&amp;amp;extragetparams=%7B%22fref%22%3A%22mentions%22%7D&quot; href=&quot;https://www.facebook.com/NASAHubble/?fref=mentions&quot;&gt;NASA&#39;s Hubble Space Telescope&lt;/a&gt; caught sight of a soft, diffuse-looking galaxy, perhaps the aftermath of a long-ago galactic collision when two spiral galaxies, each perhaps much like the Milky Way, swirled together for millions of years. Catch a glimpse: &lt;a data-ft=&quot;{&amp;quot;tn&amp;quot;:&amp;quot;-U&amp;quot;}&quot; data-lynx-mode=&quot;origin&quot; href=&quot;https://l.facebook.com/l.php?u=http%3A%2F%2Fgo.nasa.gov%2F2oq54AR&amp;amp;h=ATNQUxLMLmi9aCJx4f83LnTWlgmI7TYnJCTE5Y-S35u0NTMZL2s4Fit8arynxYcOGCTMuvj1zmtwMOjhQ3vPPa3l3uJnlsH9myhNLJpkHAi4nY5IScaKRQJhUlAu6a4GNpA&quot; rel=&quot;nofollow&quot; target=&quot;_blank&quot;&gt;http://go.nasa.gov/&lt;/a&gt;&lt;/div&gt;
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Hoje, 30 de junho, é comemorado em diversos países, o Dia do Asteróide - Asteroid Day..&lt;/div&gt;
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Trata-se de uma data onde diversas atividades educacionais são realizadas com o intuito de informar e alertar as pessoas sobre o que é um asteróide e o perigo que ele pode trazer para &amp;nbsp;o planeta.&lt;/div&gt;
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Em 30 de junho de 1908, um asteroide de 40 metros de diâmetro&amp;nbsp;causou &amp;nbsp;um grande &amp;nbsp;impacto &amp;nbsp;quando colidiu em Tunguska, na Sibéria. O corpo celeste derrubou 80 milhões de árvores em uma zona pouco povoada de 2.000 quilômetros quadrados – uma superfície superior ao tamanho de Londres. O Dia do Asteroide foi escolhido para recordar a data e alertar para o fato que, até hoje, ninguém consegue prever com precisão quando será a próxima queda de um asteroide sobre a superfície.&lt;/div&gt;
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Os cientistas trabalham para melhorar as previsões e descobrir como abortar um possível impacto – incluindo um eventual “asteroide surpresa”, que apareça sem dar sinais prévios sem estarmos &amp;nbsp;preparados para nos defendermos.&amp;nbsp;&lt;/div&gt;
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As táticas poderiam consistir em destruir o asteroide com laser, tentar desviá-lo ou enviar um “trator” espacial para arrastá-lo. Mas, primeiro, os cientistas precisam detectar a ameaça e pensar em um plano rápido para combatê-la.&lt;/div&gt;
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Astrofísicos classificam os corpos celestes por tamanho e pela composição. Os asteroides são rochas que podem medir desde alguns centímetros até 10 quilômetros de diâmetro, como o que extinguiu os dinossauros há 65 milhões de anos. Eles penetram diariamente na atmosfera da Terra, muitas vezes pegando fogo durante a queda, e raramente apresentam algum risco – a agência espacial americana estima que a chance de sermos atingidos por um asteroide potencialmente perigoso nos próximos 100 anos é de apenas 0,01%. A maioria dessas rochas vêm de uma região entre Marte e Júpiter, onde há um grande cinturão de asteroides.&lt;/div&gt;
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Até o momento, especialistas conseguiram catalogar 90% dos asteroides de tamanho potencialmente perigosos e determinaram que nenhum supunha uma ameaça imediata. Estima-se que episódios de impacto com objetos tão grandes como o que atingiu os dinossauros aconteçam uma vez a cada 100 milhões de anos – o próximo, teoricamente, poderia levar ao fim da humanidade.&lt;/div&gt;
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Os mais preocupantes são os asteroides que têm entre 15 e 140 metros, como o que caiu na Sibéria. Outro episódio relevante foi registrado em&amp;nbsp;&lt;a href=&quot;http://veja.abril.com.br/ciencia/russia-sobe-a-950-total-de-feridos-apos-queda-de-meteorito/&quot; style=&quot;border: 0px; box-sizing: border-box; color: #005297; list-style: none; margin: 0px; outline: 0px; padding: 0px;&quot;&gt;Chelyabinsk, no centro da Rússia, em 2013,&lt;/a&gt;&amp;nbsp;quando um corpo de 20 metros – que não tinha sido detectado com antecedência – entrou na atmosfera, criando uma energia cinética equivalente a 27 bombas de Hiroshima. A onda de choque fez com que as janelas de quase 5.000 edifícios quebrassem e deixou mais de 1.200 feridos.&lt;/div&gt;
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Diante da ameaça, a Europa está criando uma série de telescópios, cuja conclusão está programada para daqui a dois anos. Esta rede “escaneará sistematicamente o céu a cada noite, e qualquer asteroide que se aproxime será detectado com uma antecedência de duas a três semanas”, disse Nicolas Bobrinsky, responsável do projeto de vigilância de asteroides&amp;nbsp;&lt;i style=&quot;border: 0px; box-sizing: border-box; list-style: none; margin: 0px; outline: 0px; padding: 0px;&quot;&gt;Space Situational Awareness&lt;/i&gt;, da Agência Espacial Europeia (ESA, na sigla em inglês).&lt;/div&gt;
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Do Observatório Astronomico Monoceros com informações da Revista Veja e da AFP.&lt;/div&gt;
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Imagens Web&lt;/div&gt;
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&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgUUt43ekqz6uulLX-SXZiwksKTPJGz4M0ExZn7Arsk9HiuUc5XlsJT0uqAeq6ea9pduu7cPoTeFZIZcDNWk3qaBJuwotmq5FHQM_ov3QaC4K7iyI7fsQ3gZTeNUcTQc1oHaCkw6lrhhvYC/s1600/asteroid.jpg&quot; imageanchor=&quot;1&quot; style=&quot;margin-left: 1em; margin-right: 1em;&quot;&gt;&lt;img border=&quot;0&quot; data-original-height=&quot;512&quot; data-original-width=&quot;1024&quot; height=&quot;200&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgUUt43ekqz6uulLX-SXZiwksKTPJGz4M0ExZn7Arsk9HiuUc5XlsJT0uqAeq6ea9pduu7cPoTeFZIZcDNWk3qaBJuwotmq5FHQM_ov3QaC4K7iyI7fsQ3gZTeNUcTQc1oHaCkw6lrhhvYC/s400/asteroid.jpg&quot; width=&quot;400&quot; /&gt;&lt;/a&gt;&lt;/div&gt;
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During the &lt;a href=&quot;https://www.space.com/33797-total-solar-eclipse-2017-guide.html&quot;&gt;Great American Total Solar Eclipse on Aug. 21&lt;/a&gt;, millions of people will gaze at the sun to see the moon slowly pass in front of it, blocking out the light. But those who aren&#39;t careful risk doing some nasty damage to their eyes.&lt;/div&gt;
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&lt;a href=&quot;https://www.space.com/37124-teaching-kids-about-solar-eclipses.html&quot;&gt;You&#39;ve probably been told that it isn&#39;t safe to stare at the sun&lt;/a&gt; and that watching a solar eclipse without proper eye protection can make you go blind. That&#39;s because the light from the sun is so intense that it can literally burn your eyeballs — even during a solar eclipse, when part of the sun&#39;s disk is still visible.&lt;/div&gt;
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Even the tiniest sliver of a crescent sun peeking out from behind the moon emits enough light to scorch your eyes, Ralph Chou, professor emeritus at the School of Optometry &amp;amp; Vision Science at the University of Waterloo in Canada, told Space.com. &quot;I have seen instances where the patient has eventually shown up with crescents burned into the back of the eye, and you can almost tell exactly when they looked.&quot; [&lt;a href=&quot;https://www.space.com/35555-total-solar-eclipse-safety-tips.html&quot;&gt;How to View a Solar Eclipse Without Damaging Your Eyes&lt;/a&gt; ]&lt;/div&gt;
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&lt;a href=&quot;https://www.blogger.com/This%20panel%20shows%20the%20various%20stages%20of%20the%20solar%20eclipse.%20The%20so-called%20%22diamond%20ring%22%20marks%20the%20beginning%20of%20totality%20(third%20from%20the%20left)%20and%20the%20end%20of%20totality%20(third%20from%20the%20right).%20Imelda%20Joson%20and%20Edwin%20Aguirre%20assembled%20this%20sequence%20from%20individual%20still%20frames%20they%20took%20of%20the%20March%2029,%202006,%20total%20solar%20eclipse%20near%20El%20Salloum%20in%20Egypt.%20%20This%20panel%20shows%20the%20various%20stages%20of%20the%20solar%20eclipse.%20The%20so-called%20%22diamond%20ring%22%20marks%20the%20beginning%20of%20totality%20(third%20from%20the%20left)%20and%20the%20end%20of%20totality%20(third%20from%20the%20right).%20Imelda%20Joson%20and%20Edwin%20Aguirre%20assembled%20this%20sequence%20from%20individual%20still%20frames%20they%20took%20of%20the%20March%2029,%202006,%20total%20solar%20eclipse%20near%20El%20Salloum%20in%20Egypt.%20Credit:%20Imelda%20Joson%20and%20Edwin%20Aguirre%20How%20eyeballs%20get%20%22sunburned%22%20Sunlight%20damages%20the%20eyes%20by%20triggering%20a%20series%20of%20chemical%20reactions%20in%20the%20retina,%20the%20light-sensitive%20part%20at%20the%20back%20of%20the%20eye.%20Retinas%20contain%20two%20types%20of%20photoreceptors:%20rods%20that%20help%20you%20see%20in%20the%20dark%20and%20cones%20that%20produce%20color%20vision.%20%20When%20intense%20solar%20radiation%20hits%20the%20retinas,%20it%20can%20damage%20and%20even%20destroy%20those%20cells,%20in%20what%20doctors%20call%20a%20retinal%20photochemical%20injury,%20or%20solar%20retinopathy.%20Whether%20looking%20at%20the%20sun%20will%20cause%20this%20type%20of%20injury%20depends%20on%20both%20how%20long%20you%20look%20without%20protection%20and%20the%20sun&#39;s%20position%20in%20the%20sky.%20Overhead,%20the%20sun%20is%20brighter%20and%20more%20dangerous%20to%20look%20at%20than%20when%20it%20is%20close%20to%20the%20horizon%20during%20sunrise%20or%20sunset.%20%20The%20left%20image%20shows%20a%20healthy%20eye.%20The%20middle%20is%20the%20eye%20of%20a%20young%20adult%20male%20who%20viewed%20a%20partial%20solar%20eclipse%20repeatedly%20without%20protection%20and%20suffered%20both%20thermal%20and%20photochemical%20solar%20retinopathy.%20Several%20crescent-shaped%20scars%20can%20be%20seen%20over%20and%20around%20the%20fovea%20(bright%20pinkish%20spot).%20He%20is%20legally%20blind%20in%20this%20eye.%20The%20far-right%20image%20shows%20an%20eye%20with%20several%20photochemical%20retinal%20lesions.%20The%20irregular%20pale%20%22smudge%22%20above%20and%20left%20of%20the%20fovea,%20plus%20the%20three%20smaller%20pale%20areas%20at%20the%20arrowheads,%20are%20the%20remnants%20of%20the%20photochemical%20injuries%20to%20that%20eye.%20The%20vision%20did%20recover%20eventually.%20The%20left%20image%20shows%20a%20healthy%20eye.%20The%20middle%20is%20the%20eye%20of%20a%20young%20adult%20male%20who%20viewed%20a%20partial%20solar%20eclipse%20repeatedly%20without%20protection%20and%20suffered%20both%20thermal%20and%20photochemical%20solar%20retinopathy.%20Several%20crescent-shaped%20scars%20can%20be%20seen%20over%20and%20around%20the%20fovea%20(bright%20pinkish%20spot).%20He%20is%20legally%20blind%20in%20this%20eye.%20The%20far-right%20image%20shows%20an%20eye%20with%20several%20photochemical%20retinal%20lesions.%20The%20irregular%20pale%20%22smudge%22%20above%20and%20left%20of%20the%20fovea,%20plus%20the%20three%20smaller%20pale%20areas%20at%20the%20arrowheads,%20are%20the%20remnants%20of%20the%20photochemical%20injuries%20to%20that%20eye.%20The%20vision%20did%20recover%20eventually.%20Credit:%20Shutterstock/B.R.%20Chou/University%20of%20Waterloo/Used%20with%20permission%20%22You%20can%20think%20of%20it%20in%20the%20same%20way%20as%20this:%20Let&#39;s%20suppose%20you%20decide%20to%20really%20pig%20out%20for%20dinner,%20and%20afterwards%20you&#39;re%20not%20feeling%20very%20well,%22%20Chou%20said.%20%22Well,%20[it&#39;s%20the]%20same%20thing%20with%20all%20the%20light%20hitting%20the%20light-sensitive%20receptors%20at%20the%20back%20of%20the%20eye.%20They%20get%20so%20much%20of%20this%20light%20energy%20coming%20in%20that%20they%20really%20can&#39;t%20handle%20[it].%22%20%20In%20severe%20cases,%20this%20type%20of%20photochemical%20damage%20may%20also%20come%20with%20thermal%20injuries,%20or%20literal%20burns,%20that%20destroy%20the%20rods%20and%20cones%20in%20the%20retina.%20This%20can%20happen%20to%20people%20who%20repeatedly%20look%20at%20the%20sun%20without%20any%20protection,%20those%20who%20stare%20at%20the%20sun%20for%20an%20extended%20time,%20or%20even%20those%20who%20glance%20through%20a%20telescope%20or%20binoculars%20without%20solar%20filters.%20%20%20%20%2001:24%2002:30%20Instinct%20vs.%20willpower%20Not%20many%20people%20look%20at%20the%20sun%20long%20enough%20to%20be%20blinded%20by%20the%20light,%20Chou%20said,%20but%20the%20risk%20is%20certainly%20exacerbated%20during%20a%20solar%20eclipse.%20%20Under%20normal%20circumstances,%20it&#39;s%20more%20difficult%20to%20look%20at%20the%20sun%20long%20enough%20to%20incur%20damage%20because%20of%20something%20called%20an%20aversion%20reflex.%20%22We%20learn%20early%20on%20in%20life%20we%20just%20shouldn&#39;t%20be%20looking%20at%20something%20that%20bright,%20because%20it%20is%20uncomfortable%20and%20we%20can&#39;t%20see%20anything,%22%20Chou%20said.%20%20%22The%20problem%20when%20it%20comes%20to%20looking%20at%20a%20partially%20eclipsed%20sun%20is%20that%20you%20are%20trying%20to%20see%20something%20that%20you%20know%20is%20going%20on%20that&#39;s%20different,%20and%20willpower%20is%20an%20amazing%20thing%20to%20override%20an%20aversion%20reflex.%22%20%20To%20make%20matters%20worse,%20it&#39;s%20possible%20to%20look%20directly%20at%20the%20sun%20%22with%20a%20certain%20degree%20of%20comfort%22%20when%20the%20sun%20is%20partially%20covered%20by%20the%20moon,%20Chou%20said.%20Even%20when%20the%20sun%20is%20almost%20completely%20covered,%20though,%20the%20tiny%20crescent%20that%20remains%20is%20still%20bright%20enough%20to%20burn%20your%20retinas.%20%20You%20should%20never%20look%20directly%20at%20the%20sun,%20but%20there%20are%20ways%20to%20safely%20observe%20an%20eclipse.%20%3Ca%20href=%22http://www.space.com/15614-sun-observing-safety-tips-infographic.html%22%3ESee%20how%20to%20safely%20observe%20a%20solar%20eclipse%20with%20this%20Space.com%20infographic%3C/a%3E.%20%20You%20should%20never%20look%20directly%20at%20the%20sun,%20but%20there%20are%20ways%20to%20safely%20observe%20an%20eclipse.%20See%20how%20to%20safely%20observe%20a%20solar%20eclipse%20with%20this%20Space.com%20infographic.%20Credit:%20Karl%20Tate,%20SPACE.com%20Contributor%20Seeing%20with%20eclipse%20blindness%20One%20thing%20that%20makes%20eclipse%20blindness%20particularly%20dangerous%20is%20that%20a%20person%20who%20looks%20at%20the%20sun%20long%20enough%20to%20incur%20damage%20probably%20won&#39;t%20notice%20any%20of%20the%20effects%20until%20the%20next%20morning,%20Chou%20said.%20%20%22Let&#39;s%20say%20you%20take%20a%20look%20at%20the%20sun%20in%20the%20afternoon.%20The%20cells%20get%20overloaded,%20and%20they&#39;re%20actually%20still%20able%20to%20function%20for%20a%20little%20while,%20but%20overnight%20while%20you&#39;re%20asleep%20%E2%80%A6%20the%20cells%20start%20lose%20their%20function,%20and%20then%20they%20even%20start%20to%20die%20depending%20on%20exactly%20how%20badly%20they&#39;ve%20been%20affected,%22%20he%20explained.%20%20People%20who%20wake%20up%20to%20discover%20their%20vision%20has%20become%20impaired%20may%20look%20in%20the%20mirror%20to%20find%20their%20face%20is%20a%20featureless%20blur,%20Chou%20said,%20or%20they%20may%20try%20to%20read%20the%20newspaper%20only%20to%20find%20that%20there%20are%20no%20words%20on%20the%20page.%20While%20peripheral%20vision%20is%20usually%20spared,%20the%20center%20of%20vision%20is%20affected%20the%20worst.%20That&#39;s%20the%20part%20of%20the%20retina%20responsible%20for%20seeing%20in%20high%20resolution%20and%20in%20color.%20%20%22Most%20people,%20they%20don&#39;t%20see%20a%20black%20spot,%22%20Chou%20said.%20%22For%20the%20most%20part%20they%20have%20damaged%20photoreceptors%20that%20just%20aren&#39;t%20capable%20of%20doing%20more%20than%20just%20registering%20maybe%20the%20presence%20of%20light%20but%20can&#39;t%20really%20build%20up%20enough%20information%20for%20them%20to%20be%20able%20to%20see%20clearly.%22%20%20%20%20An%20unclear%20path%20to%20recovery%20Most%20patients%20with%20eclipse%20blindness%20are%20legally%20blind%20when%20they%20go%20to%20see%20an%20eye%20doctor,%20Chou%20said.%20Unfortunately,%20the%20prognosis%20for%20these%20patients%20is%20nearly%20impossible%20to%20determine.%20%20%22You%20just%20sort%20of%20end%20up%20having%20to%20wait%20it%20out,%20and%20that&#39;s%20the%20really%20unfortunate%20part%20about%20it,%22%20Chou%20said.%20%22The%20typical%20person%20who&#39;s%20been%20injured%20is%20going%20to%20wait%20six%20to%2012%20months%20before%20they%20know%20what%20their%20ultimate%20status%20is%20going%20to%20be.%22%20%20Statistically,%20about%20half%20of%20those%20who%20are%20diagnosed%20with%20eclipse%20blindness%20will%20recover%20full%20vision%20in%20six%20months,%20he%20said.%20The%20other%20half%20either%20partially%20recover%20or%20are%20stuck%20with%20the%20problem%20for%20the%20rest%20of%20their%20lives.%20%20And%20when%20it%20comes%20to%20treatment,%20there%20really%20aren&#39;t%20any%20options.%20%22Over%20the%20years,%20certainly%20ophthalmologists%20have%20tried%20various%20ways,%20pharmacological%20and%20otherwise,%20to%20try%20and%20reduce%20the%20amount%20of%20damage%20and%20swelling%20that%20is%20thought%20to%20be%20the%20main%20cause%20for%20the%20loss%20of%20vision,%22%20Chou%20said.%20%22For%20the%20most%20part,%20those%20types%20of%20treatments%20don&#39;t%20seem%20to%20be%20effective.%22%20%20The%20only%20thing%20doctors%20can%20do%20to%20help%20these%20patients%20is%20to%20treat%20the%20case%20as%20any%20other%20case%20of%20visual%20impairment,%20Chou%20said,%20by%20teaching%20the%20individuals%20how%20to%20get%20around%20in%20the%20world%20and%20function%20without%20central%20vision.%20%20The%20%22diamond%20ring%22%20effect%20is%20seen%20in%20this%20view%20of%20the%20March%208,%202016%20total%20solar%20eclipse,%20which%20was%20captured%20by%20the%20Slooh%20Community%20Observatory.%20The%20%22diamond%20ring%22%20effect%20is%20seen%20in%20this%20view%20of%20the%20March%208,%202016%20total%20solar%20eclipse,%20which%20was%20captured%20by%20the%20Slooh%20Community%20Observatory.%20Credit:%20Slooh%20Community%20Observatory%20When%20it&#39;s%20safe%20to%20look%20The%20only%20time%20it&#39;s%20safe%20to%20look%20at%20the%20sun%20without%20eclipse%20glasses%20or%20other%20solar%20filters%20is%20during%20totality,%20when%20the%20moon%20is%20completely%20blocking%20out%20the%20sun&#39;s%20rays%20and%20only%20the%20corona%20is%20visible.%20If%20you&#39;re%20planning%20on%20watching%20any%20kind%20solar%20eclipse,%20whether%20it&#39;s%20of%20the%20total,%20annular%20or%20partial%20variety,%20you%20absolutely%20must%20use%20proper%20eye%20protection%20if%20you%20want%20to%20spare%20your%20eyes.%20Otherwise,%20you&#39;ll%20risk%20long-term%20or%20even%20permanent%20blindness.%20%20-%20See%20more%20at:%20https://www.space.com/37199-solar-eclipse-blindness.html#sthash.TwJEOHtJ.dpuf&quot;&gt;- See more at: https://www.space.com/37199-solar-eclipse-blindness.html#sthash.TwJEOHtJ.dpuf&lt;/a&gt;&lt;/div&gt;
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http://feeds.feedburner.com/astronomicando-BoletimDeNoticias-ObservatorioMonoceros&lt;/div&gt;</description><link>http://astronomicando.blogspot.com/2017/06/a-solar-eclipse-can-blind-you-read-this.html</link><author>noreply@blogger.com (Leila Ossola)</author><thr:total>0</thr:total></item><item><guid isPermaLink="false">tag:blogger.com,1999:blog-4133783924183725468.post-7445774325723633785</guid><pubDate>Wed, 21 Jun 2017 21:54:00 +0000</pubDate><atom:updated>2017-06-21T18:54:12.109-03:00</atom:updated><category domain="http://www.blogger.com/atom/ns#">Astronomia</category><title>&#39;Pelo bem da humanidade&#39;, Stephen Hawking faz apelo para que homem volte à Lua</title><description>Da BBC&lt;br /&gt;
&lt;span class=&quot;byline__name&quot; style=&quot;background-color: white; border: 0px; color: #404040; display: inline-block; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 14px; font-stretch: inherit; font-variant-numeric: inherit; line-height: 1.28571; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Pallab Ghosh&lt;/span&gt;&lt;span style=&quot;background-color: white; color: #404040; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 14px;&quot;&gt;&lt;/span&gt;&lt;span class=&quot;byline__title&quot; style=&quot;background-color: white; border: 0px; color: #5a5a5a; display: block; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 14px; font-stretch: inherit; font-variant-numeric: inherit; line-height: 1.28571; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Da BBC News&lt;/span&gt;&lt;br /&gt;
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&lt;figure class=&quot;media-landscape has-caption full-width lead&quot; style=&quot;background-color: #111111; border: 0px; clear: both; color: #404040; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 14px; font-stretch: inherit; font-variant-numeric: inherit; line-height: inherit; margin: 32px -54.2188px 0px 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;image-and-copyright-container&quot; style=&quot;border: 0px; color: inherit; display: block; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 0px; position: relative; vertical-align: baseline;&quot;&gt;&lt;img alt=&quot;Stephen Hawking&quot; class=&quot;js-image-replace&quot; data-highest-encountered-width=&quot;660&quot; height=&quot;549&quot; src=&quot;https://ichef-1.bbci.co.uk/news/660/cpsprodpb/14CCC/production/_96569158_3c7d2124-e388-4d3a-9b99-6ba19a1b641e.jpg&quot; style=&quot;border: 0px; color: #bdbdbd; display: block; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: auto; letter-spacing: inherit; line-height: inherit; margin: 0px; max-width: 100%; padding: 0px; user-select: none; vertical-align: baseline; width: 645.781px;&quot; width=&quot;976&quot; /&gt;&lt;span class=&quot;off-screen&quot; style=&quot;border: 0px !important; clip: rect(1px 1px 1px 1px); color: inherit; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 1px !important; letter-spacing: inherit; line-height: inherit; margin: 0px; overflow: hidden; padding: 0px !important; position: absolute !important; vertical-align: baseline; width: 1px !important;&quot;&gt;Direito de imagem&lt;/span&gt;&lt;span class=&quot;story-image-copyright&quot; style=&quot;background: rgba(0, 0, 0, 0.6); border: 0px; bottom: 0px; color: #ececec; font-family: inherit; font-size: 0.75rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: 0.25px; line-height: 1.33333; margin: 0px; padding: 3px 8px 1px; position: absolute; right: 0px; text-transform: uppercase; vertical-align: baseline;&quot;&gt;PA&lt;/span&gt;&lt;/span&gt;&lt;figcaption class=&quot;media-caption&quot; style=&quot;border: 0px; color: inherit; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 16px; vertical-align: baseline; visibility: visible;&quot;&gt;&lt;span class=&quot;off-screen&quot; style=&quot;border: 0px !important; clip: rect(1px 1px 1px 1px); color: inherit; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 1px !important; letter-spacing: inherit; line-height: inherit; margin: 0px; overflow: hidden; padding: 0px !important; position: absolute !important; vertical-align: baseline; width: 1px !important;&quot;&gt;Image caption&lt;/span&gt;&lt;span class=&quot;media-caption__text&quot; style=&quot;border: 0px; color: #ececec; display: block; font-family: inherit; font-size: 0.8125rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: 1.23077; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&quot;Essa expansão para o espaço pode mudar completamente o futuro da humanidade&quot;, disse o físico britânico&lt;/span&gt;&lt;/figcaption&gt;&lt;/figure&gt;&lt;div class=&quot;story-body__introduction&quot; style=&quot;background-color: white; border: 0px; color: #404040; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 1rem; font-stretch: inherit; font-variant-numeric: inherit; font-weight: bold; line-height: 1.375; margin-top: 28px; padding: 0px; text-align: justify; vertical-align: baseline;&quot;&gt;
O cientista e físico britânico Stephen Hawking convocou países a enviarem astronautas à Lua até 2020. Para ele, é preciso também construir uma base lunar nos próximos 30 anos e enviar pessoas a Marte até 2025 - tudo isso pensando &quot;no futuro da humanidade&quot;.&lt;/div&gt;
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As previsões de Hawking almejam principalmente reacender programas espaciais globais, forjar novas alianças e dar à humanidade uma nova &quot;sensação de propósito&quot;.&lt;/div&gt;
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O cientista está participando do Starmus Festival, que celebra a Ciência e as Artes e está acontecendo em Trondheim, na Noruega. Ele reforçou lá seus desejos de um novo plano de expansão espacial.&lt;/div&gt;
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&quot;Essa expansão para o espaço pode mudar completamente o futuro da humanidade&quot;, disse o físico britânico.&lt;/div&gt;
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&quot;Tenho esperanças de que isso uniria países que competem entre si em torno de uma única meta, para enfrentar o desafio comum a todos nós. Um novo e ambicioso programa espacial serviria para engajar os mais novos e estimular o interesse deles em outras áreas, como astrofísica e cosmologia.&quot;&lt;/div&gt;
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Questionado sobre se não seria melhor gastar o dinheiro disponível tentando resolver os problemas deste planeta, em vez de investi-lo no espaço, Hawking pontuou que é importante, sim, cuidar das questões urgentes daqui - mas agregou que pensar no espaço é importante para garantir o futuro da humanidade.&lt;/div&gt;
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&quot;Não estou negando a importância de lutar contra o aquecimento global e as mudanças climáticas aqui, ao contrário do que fez Donald Trump, que pode ter tomado a decisão mais séria e errada sobre esse tema que o mundo poderia esperar&quot;, disse. (No início do mês, o presidente americano anunciou a saída dos EUA do Acordo de Paris, pacto climático que visa impedir o aumento das temperaturas globais).&lt;/div&gt;
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No entanto, o cientista ressaltou que as viagens espaciais são essenciais para o futuro da humanidade, principalmente porque a Terra está sob ameaça - justamente por conta de problemas como o aquecimento global e a diminuição dos recursos naturais.&lt;/div&gt;
&lt;figure class=&quot;media-landscape has-caption full-width&quot; style=&quot;background-color: #111111; border: 0px; clear: both; color: #404040; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 14px; font-stretch: inherit; font-variant-numeric: inherit; line-height: inherit; margin: 24px -24.6449px 0px 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;image-and-copyright-container&quot; style=&quot;border: 0px; color: inherit; display: block; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 0px; position: relative; vertical-align: baseline;&quot;&gt;&lt;img alt=&quot;Neil Armstrong na lua&quot; class=&quot;responsive-image__img js-image-replace&quot; data-highest-encountered-width=&quot;624&quot; datasrc=&quot;https://ichef.bbci.co.uk/news/320/cpsprodpb/1834/production/_96569160_a6e7f203-112d-4a81-9d16-d9804a5fbf4a.jpg&quot; height=&quot;549&quot; src=&quot;https://ichef.bbci.co.uk/news/624/cpsprodpb/1834/production/_96569160_a6e7f203-112d-4a81-9d16-d9804a5fbf4a.jpg&quot; style=&quot;border: 0px; color: #bdbdbd; display: block; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: auto; letter-spacing: inherit; line-height: inherit; margin: 0px; max-width: 100%; padding: 0px; transition: opacity 0.2s ease-in; user-select: none; vertical-align: baseline; width: 616.207px;&quot; width=&quot;976&quot; /&gt;&lt;span class=&quot;off-screen&quot; style=&quot;border: 0px !important; clip: rect(1px 1px 1px 1px); color: inherit; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 1px !important; letter-spacing: inherit; line-height: inherit; margin: 0px; overflow: hidden; padding: 0px !important; position: absolute !important; vertical-align: baseline; width: 1px !important;&quot;&gt;Direito de imagem&lt;/span&gt;&lt;span class=&quot;story-image-copyright&quot; style=&quot;background: rgba(0, 0, 0, 0.6); border: 0px; bottom: 0px; color: #ececec; font-family: inherit; font-size: 0.75rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: 0.25px; line-height: 1.33333; margin: 0px; padding: 3px 8px 1px; position: absolute; right: 0px; text-transform: uppercase; vertical-align: baseline;&quot;&gt;NEIL A. ARMSTRONG&lt;/span&gt;&lt;/span&gt;&lt;figcaption class=&quot;media-caption&quot; style=&quot;border: 0px; color: inherit; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: inherit; margin: 0px; padding: 16px; vertical-align: baseline; visibility: visible;&quot;&gt;&lt;span class=&quot;off-screen&quot; style=&quot;border: 0px !important; clip: rect(1px 1px 1px 1px); color: inherit; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 1px !important; letter-spacing: inherit; line-height: inherit; margin: 0px; overflow: hidden; padding: 0px !important; position: absolute !important; vertical-align: baseline; width: 1px !important;&quot;&gt;Image caption&lt;/span&gt;&lt;span class=&quot;media-caption__text&quot; style=&quot;border: 0px; color: #ececec; display: block; font-family: inherit; font-size: 0.8125rem; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; letter-spacing: inherit; line-height: 1.23077; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Retorno do homem à Lua daria à humanidade uma &quot;sensação de propósito&quot;, segundo Hawking&lt;/span&gt;&lt;/figcaption&gt;&lt;/figure&gt;&lt;div style=&quot;background-color: white; border: 0px; color: #404040; font-family: Helmet, Freesans, Helvetica, Arial, sans-serif; font-size: 1rem; font-stretch: inherit; font-variant-numeric: inherit; line-height: 1.375; margin-top: 18px; padding: 0px; text-align: justify; vertical-align: baseline;&quot;&gt;
&quot;Estamos ficando sem espaço aqui e os únicos lugares disponíveis para irmos estão em outros planetas, outros universos. É a hora de explorar outros sistemas solares. Tentar se espalhar por aí talvez seja a única estratégia que pode nos salvar de nós mesmos. Estou convencido de que os seres humanos precisam sair da Terra&quot;, afirmou o físico.&lt;/div&gt;
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Chefe da Agência Espacial Europeia, Jan Woerner disse que prevê a construção de uma base na Lua em 2024 e está colaborando com a Rússia para enviar uma sonda e testar um possível local para isso. A China já estipulou uma meta de enviar um astronauta à Lua em breve.&lt;/div&gt;
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Já a Nasa não tem planos de voltar à Lua por enquanto e vem focando seus esforços no plano de enviar astronautas a Marte até 2030. No entanto, se outras agências espaciais começarem a colaborar entre si para a construção de uma base lunar, seria difícil ver a Nasa de fora dessa.&lt;/div&gt;
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Para Hawking, o ponto principal é que não há futuro a longo prazo para nossas espécies na Terra: ele acha que seríamos atingidos por um asteroide novamente ou eventualmente engolidos pelo nosso próprio Sol. Ele ainda reforça que viajar para outros planetas distantes &quot;elevaria a humanidade&quot;.&lt;/div&gt;
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&quot;Sempre que demos um novo salto, por exemplo a ida à Lua, unimos os povos e as nações, inauguramos novas descobertas e novas tecnologias&quot;, afirmou.&lt;/div&gt;
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&quot;Deixar a Terra exige uma movimentação global, todos devem estar juntos nisso. Precisamos fazer renascer a empolgação dos primórdios das viagens espaciais, na década de 1960.&quot;&lt;/div&gt;
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Para ele, a colonização de outros planetas já não é mais tema de ficção científica. &quot;Se a humanidade quiser continuar (a viver) por mais milhões de anos, nosso futuro residirá na ousadia de ir onde ninguém mais ousou ir. Espero que seja para o melhor. Nós não temos outra opção.&quot;&lt;/div&gt;
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&lt;span style=&quot;background-color: white; color: #1d2129; font-family: Helvetica, Arial, sans-serif; font-size: 14px;&quot;&gt;A família de 66 antenas do&amp;nbsp;&lt;/span&gt;&lt;a class=&quot;profileLink&quot; data-hovercard-prefer-more-content-show=&quot;1&quot; data-hovercard=&quot;/ajax/hovercard/page.php?id=114210958590019&amp;amp;extragetparams=%7B%22fref%22%3A%22mentions%22%7D&quot; href=&quot;https://www.facebook.com/ALMA.Radiotelescope/?fref=mentions&quot; style=&quot;background-color: white; color: #365899; cursor: pointer; font-family: Helvetica, Arial, sans-serif; font-size: 14px; text-decoration-line: none;&quot;&gt;ALMA Observatory&lt;/a&gt;&lt;span style=&quot;background-color: white; color: #1d2129; font-family: Helvetica, Arial, sans-serif; font-size: 14px;&quot;&gt;&amp;nbsp;. Crédito da imagem: S. Seip /&amp;nbsp;&lt;/span&gt;&lt;a class=&quot;profileLink&quot; data-hovercard-prefer-more-content-show=&quot;1&quot; data-hovercard=&quot;/ajax/hovercard/page.php?id=10867667494&amp;amp;extragetparams=%7B%22fref%22%3A%22mentions%22%7D&quot; href=&quot;https://www.facebook.com/ESOAstronomy/?fref=mentions&quot; style=&quot;background-color: white; color: #365899; cursor: pointer; font-family: Helvetica, Arial, sans-serif; font-size: 14px; text-decoration-line: none;&quot;&gt;ESO Astronomy&lt;/a&gt;&lt;span style=&quot;background-color: white; color: #1d2129; font-family: Helvetica, Arial, sans-serif; font-size: 14px;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;a href=&quot;https://l.facebook.com/l.php?u=http%3A%2F%2Fsocsi.in%2F50Wy2&amp;amp;h=ATO3cmB0ObtsCVA0LXdTZA9fvHphDtRvDXFDmklweyfrtVi1kets2XBB2PNTUwv6PpXxYctbihvF5SPPYGUNN5i9v9Q_CF-LVucPWKbdPNZSCfykCypnNh2k3DT93jNz6cTqFLMWFlFuzTdF6YvI_w&amp;amp;enc=AZMz9w0e5bP5FjwtKiqB4JuBFyHuWkMVSsPAdtCSotkNJJdKswW6USv8oOZLJG3yJPp0bw5-C8LiIv5uJS_uNpMODXqCsZSHqNHnP7B7U-y4Oc2FNRss6Tq_EIJiM43RoRe7XV7SEIJXsRgLpJBVGjz_6-gvNgenF6lQLbHw0P7bWvVSZL4g1h5ZF174PAF4ycKU1AG-ygbMpn4h4vk5iW6J&amp;amp;s=1&quot; rel=&quot;nofollow noopener&quot; style=&quot;background-color: white; color: #365899; cursor: pointer; font-family: Helvetica, Arial, sans-serif; font-size: 14px; text-decoration-line: none;&quot; target=&quot;_blank&quot;&gt;http://socsi.in/50Wy2&lt;/a&gt;&lt;/div&gt;
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&lt;div class=&quot;news-date rf&quot; style=&quot;border: 0px; box-sizing: border-box; color: black; float: none; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px 0px 7px; padding: 0px; text-align: justify; vertical-align: baseline; width: auto;&quot;&gt;
&lt;span class=&quot;news-author&quot; style=&quot;border: 0px; box-sizing: border-box; display: inline-block; font-family: inherit; font-size: 12px; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: bold; line-height: 14px; margin: 5px 0px 0px; padding: 0px 7px 0px 0px; text-transform: capitalize; vertical-align: baseline;&quot;&gt;Redazione ANSA&lt;/span&gt;&amp;nbsp;&lt;span class=&quot;location&quot; itemprop=&quot;dateline&quot; style=&quot;border: 0px; box-sizing: border-box; display: inline-block; font-family: inherit; font-size: 12px; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: 14px; margin: 5px 0px 0px; padding: 0px 7px 0px 0px; text-transform: uppercase; vertical-align: baseline;&quot;&gt;&lt;/span&gt;&amp;nbsp;&lt;div class=&quot;news-time&quot; style=&quot;border: 0px; box-sizing: border-box; display: inline-block; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;
&lt;time style=&quot;border: 0px; box-sizing: border-box; display: inline-block; font-family: inherit; font-size: 12px; font-stretch: inherit; font-variant: inherit; font-weight: inherit; line-height: 13px; margin: 5px 0px 0px; padding: 0px 7px 0px 0px; vertical-align: baseline;&quot;&gt;&lt;span style=&quot;border: 0px; box-sizing: border-box; display: inline-block; font-family: inherit; font-stretch: inherit; font-variant: inherit; font-weight: inherit; line-height: 14px; margin: 5px 0px 0px; padding: 0px 7px 0px 0px; vertical-align: baseline;&quot;&gt;15 giugno 2017&lt;/span&gt;&lt;span style=&quot;border: 0px; box-sizing: border-box; display: inline-block; font-family: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 5px 0px 0px; padding: 0px 7px 0px 0px; vertical-align: baseline;&quot;&gt;15:50&lt;/span&gt;&lt;/time&gt;&lt;/div&gt;
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&lt;ul class=&quot;news-social-toolbar social-menu share-inner-wrp lf&quot; style=&quot;border: 0px; box-sizing: border-box; color: #707070; float: left; font-family: inherit; font-size: 13px; font-stretch: inherit; font-variant: inherit; font-weight: inherit; line-height: 22px; list-style: none; margin: 0px; padding: 0px; vertical-align: baseline; width: auto;&quot;&gt;
&lt;li class=&quot;facebook button-wrap&quot; style=&quot;background: none no-repeat; border: 0px; box-sizing: border-box; clear: none; display: block; float: left; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: auto; line-height: inherit; margin: 0px; overflow: hidden; padding: 0px; vertical-align: baseline; width: auto;&quot;&gt;&lt;a class=&quot;bt-news-fb&quot; href=&quot;https://www.blogger.com/null&quot; style=&quot;background: url(&amp;quot;/canale_scienza_tecnica/img/ico_news_social.png&amp;quot;) 0px 0px no-repeat; border: 0px; box-sizing: border-box; display: block; float: left; font-family: inherit; font-stretch: inherit; font-variant: inherit; font-weight: inherit; height: 32px; line-height: 22px; margin: 0px 4px 0px 0px; overflow: hidden; padding: 0px; text-align: justify; text-indent: 150%; vertical-align: baseline; white-space: nowrap; width: 32px;&quot; title=&quot;Facebook&quot;&gt;Facebook&lt;/a&gt;&lt;/li&gt;
&lt;li class=&quot;twitter button-wrap&quot; style=&quot;background: none no-repeat; border: 0px; box-sizing: border-box; clear: none; display: block; float: left; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: auto; line-height: inherit; margin: 0px; overflow: hidden; padding: 0px; vertical-align: baseline; width: auto;&quot;&gt;&lt;a class=&quot;bt-news-twt&quot; href=&quot;https://www.blogger.com/null&quot; style=&quot;background: url(&amp;quot;/canale_scienza_tecnica/img/ico_news_social.png&amp;quot;) 0px -50px no-repeat; border: 0px; box-sizing: border-box; display: block; float: left; font-family: inherit; font-stretch: inherit; font-variant: inherit; font-weight: inherit; height: 32px; line-height: 22px; margin: 0px 4px 0px 0px; overflow: hidden; padding: 0px; text-align: justify; text-indent: 150%; vertical-align: baseline; white-space: nowrap; width: 32px;&quot; title=&quot;Twitter&quot;&gt;Twitter&lt;/a&gt;&lt;/li&gt;
&lt;li class=&quot;google button-wrap&quot; style=&quot;background: none no-repeat; border: 0px; box-sizing: border-box; clear: none; display: block; float: left; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: auto; line-height: inherit; margin: 0px; overflow: hidden; padding: 0px; vertical-align: baseline; width: auto;&quot;&gt;&lt;a class=&quot;bt-news-gplus&quot; href=&quot;https://www.blogger.com/null&quot; style=&quot;background: url(&amp;quot;/canale_scienza_tecnica/img/ico_news_social.png&amp;quot;) 0px -200px no-repeat; border: 0px; box-sizing: border-box; display: block; float: left; font-family: inherit; font-stretch: inherit; font-variant: inherit; font-weight: inherit; height: 32px; line-height: 22px; margin: 0px 4px 0px 0px; overflow: hidden; padding: 0px; text-align: justify; text-indent: 150%; vertical-align: baseline; white-space: nowrap; width: 32px;&quot; title=&quot;Google +&quot;&gt;Google +&lt;/a&gt;&lt;/li&gt;
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&lt;div class=&quot;col-md-8&quot; style=&quot;background-color: white; border: 0px; box-sizing: border-box; float: left; font-stretch: inherit; font-variant-numeric: inherit; line-height: inherit; margin: 0px; min-height: 1px; padding: 0px 15px; position: relative; vertical-align: baseline; width: 660px;&quot;&gt;
&lt;div class=&quot;content-news&quot; style=&quot;border: 0px; box-sizing: border-box; font-stretch: inherit; font-variant-numeric: inherit; line-height: 24px; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;
&lt;div class=&quot;news-img&quot; id=&quot;popup-link&quot; style=&quot;background: rgb(235, 246, 238); border: 0px; box-sizing: border-box; color: #333333; cursor: pointer; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px 0px 10px; min-height: 409px; padding: 0px 0px 43px; position: relative; vertical-align: baseline;&quot;&gt;
&lt;div class=&quot;img-photo ico-60x60&quot; style=&quot;border: 0px; box-sizing: border-box; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; position: relative; text-align: center; vertical-align: baseline;&quot;&gt;
&lt;img alt=&quot;Ricostruzione del Sistema Solare e dell&#39;asteroide Apophis (fonte: Nasa) © Ansa&quot; class=&quot;img-responsive&quot; src=&quot;http://www.ansa.it/webimages/ch_620x438/2017/6/15/c0670a46dd8238899bdfb62a2379a104.jpeg&quot; style=&quot;border: 0px; box-sizing: border-box; display: block; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: auto; line-height: inherit; margin: 0px 0px 1em; max-width: 100%; padding: 0px; text-align: justify; vertical-align: middle; width: 630px;&quot; /&gt;&lt;span class=&quot;photo-green-ico&quot; style=&quot;background: url(&amp;quot;/canale_scienza_tecnica/img/ico_photo_60x60.png&amp;quot;) no-repeat; border: 0px; box-sizing: border-box; display: block; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 60px; line-height: inherit; margin: 0px; overflow: hidden; padding: 0px; position: absolute; right: 12px; text-align: justify; text-indent: 150%; top: 10px; vertical-align: baseline; white-space: nowrap; width: 60px;&quot;&gt;FOTO&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;news-caption hidden-xs&quot; style=&quot;border: 0px; bottom: 0px; box-sizing: border-box; color: #595959; display: table; font-size: 11px; font-stretch: normal; height: 43px; line-height: 13px; margin: 0px; min-width: 407px; padding: 0px 0px 0px 10px; position: absolute; text-align: justify; vertical-align: baseline; width: 630px;&quot;&gt;
&lt;span style=&quot;border: 0px; box-sizing: border-box; display: table-cell; font-family: inherit; font-size: inherit; font-stretch: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; max-width: 320px; padding: 0px; vertical-align: middle;&quot;&gt;Ricostruzione del Sistema Solare e dell&#39;asteroide Apophis (fonte: Nasa) © ANSA/Ansa&lt;/span&gt;&lt;div class=&quot;link-gallery rf&quot; style=&quot;background: url(&amp;quot;/canale_scienza_tecnica/img/dot_4x4_green.png&amp;quot;) repeat-y; border: 0px; box-sizing: border-box; display: table-cell; float: right !important; font-family: inherit; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; height: 25px; line-height: inherit; margin: 8px 6px 0px 10px; padding: 0px 0px 0px 14px; vertical-align: middle; width: 110px;&quot;&gt;
&lt;a href=&quot;https://www.blogger.com/null&quot; style=&quot;background-color: transparent; border: 0px; box-sizing: border-box; color: #667769; display: block; font-family: inherit; font-size: 10px; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: 12px; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;plus&quot; style=&quot;border: 0px; box-sizing: border-box; color: #a9baad; float: right; font-size: 30px; font-stretch: normal; font-weight: bold; line-height: 24px; margin: 0px 0px 0px 5px; padding: 0px; vertical-align: baseline; width: 20px;&quot;&gt;+&lt;/span&gt;CLICCA PER INGRANDIRE&lt;/a&gt;&lt;/div&gt;
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&lt;div class=&quot;news-txt&quot; itemprop=&quot;articleBody&quot; style=&quot;border: 0px; box-sizing: border-box; clear: both; font-stretch: inherit; font-variant-numeric: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;
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&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;Sono ancora studenti di ingegneria al Massachussets institute of technology (Mit), ma la loro idea è stata così buona da essere giudicata valida per una proposta alla Nasa: cioè mandare una sonda senza equipaggio sull&#39;asteroide gigante Apophis, per studiare e rilevarne tutte le informazioni possibili, dalla forma, alle dimensioni, alla composizione, quando passera vicinissimo alla Terra nel 2029.&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;Aphophis, grande 350 metri, non colpirà la Terra, ma le andrà così vicino che la forza di gravità terrestre potrebbe deviarne la traiettoria. Un passaggio ravvicinato unico il suo, di quelli che accadono una volta ogni 1000 anni.&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;color: #333333; font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&lt;div style=&quot;text-align: justify;&quot;&gt;
&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;Il gruppo di studenti, coordinato da Richard Binzel e David Miller ha pensato ad una missione robotica capace di unire la difesa del pianeta alla scoperta scientifica. Il progetto è stato poi presentato all&#39;agenzia spaziale Usa ricevendo una valutazione positiva dai suoi esperti: &quot; è uno sforzo notevole&quot;, ha commentato Lindley Johnson, del Programma di osservazione dei Neo (Near-Earth Object) della Nasa&amp;nbsp;&quot;è quasi pronto per essere presentato alla Nasa&quot;.&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;color: #333333; font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&lt;div style=&quot;text-align: justify;&quot;&gt;
&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;L&#39;obiettivo sarà carpire tutti i dettagli di Apophis, dalla forma alle dimensioni, dalla densità alla composizione della superficie fino al tasso di rotazione. Una sonda della Nasa dovrebbe essere lanciata, secondo il progetto, nell&#39;agosto del 2026 per raggiungere in tempo la postazione di osservazione e misurare quindi Apophis prima, durante e dopo il passaggio del 2029.&lt;/span&gt;&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;color: #333333; font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;&lt;div style=&quot;text-align: justify;&quot;&gt;
&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;Il progetto però non è fine a se stesso, ma è pensato per dare impulso ad altri studi futuri delle agenzie spaziali internazionali. &quot;Ci sono moltissime missioni su comete e asteroidi, ma questa è unica nel suo genere, perché Apophis arriverà così vicino alla Terra, che la gravità terrestre darà probabilmente all&#39;asteroide una &#39;strattonata&#39;, deviandone il percorso&quot;, commenta Miller.&amp;nbsp;&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;font-family: inherit; font-size: inherit; font-style: inherit; font-variant-caps: inherit; font-variant-ligatures: inherit; font-weight: inherit;&quot;&gt;Le informazioni che si ricaveranno da questo progetto aiuteranno a capire meglio come si formano gli asteroidi, che sono stati i primi mattoni del Sistema Solare, e gli oltre 4.000 pianeti noti, oltre a sapere come progettare una difesa della Terra nel caso di un futuro impatto con un asteroide.&lt;/span&gt;&lt;/div&gt;
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