\n<\/iframe>\n<\/div><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udd2d Contexto geral<\/h3>\n\n\n\n<p>O objeto conhecido como <strong>3I\/ATLAS<\/strong> \u00e9 apenas o terceiro visitante confirmado de fora do nosso sistema solar, depois de <strong>1I\/\u02bbOumuamua (2017) e 2I\/Borisov (2019).<\/strong> <a href=\"https:\/\/science.nasa.gov\/solar-system\/comets\/3i-atlas\/?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noreferrer noopener\">NASA Science+2Ag\u00eancia Espacial Europeia+2<\/a><br><br>Seu nome explica isso: \u201c3I\u201d significa terceira objeto interestelar (\u201cI\u201d de interstellar) e \u201cATLAS\u201d vem do sistema de busca que o detectou. <a href=\"https:\/\/science.nasa.gov\/blogs\/planetary-defense\/2025\/07\/02\/nasa-discovers-interstellar-comet-moving-through-solar-system\/?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noreferrer noopener\">NASA Science+1<\/a><br><br>N\u00e3o h\u00e1 risco para a Terra \u2014 sua trajet\u00f3ria \u00e9 hiperb\u00f3lica, ele est\u00e1 de passagem, e o mais pr\u00f3ximo que chegar\u00e1 da Terra \u00e9 cerca de 1,8 unidades astron\u00f4micas (aproximadamente 270 milh\u00f5es de quil\u00f4metros) da gente. <a href=\"https:\/\/science.nasa.gov\/solar-system\/comets\/3i-atlas\/?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noreferrer noopener\">NASA Science+1<\/a><\/p>\n\n\n\n<div class=\"wp-block-cover has-custom-content-position is-position-bottom-left has-white-color has-text-color has-link-color wp-elements-ccac472f5fcf6bcfca361827bee334ad\"><img data-dominant-color=\"07171f\" data-has-transparency=\"false\" style=\"--dominant-color: #07171f;\" decoding=\"async\" width=\"1024\" height=\"576\" class=\"wp-block-cover__image-background wp-image-1928 not-transparent\" alt=\"\" src=\"https:\/\/spacebetween.com.br\/wp-content\/uploads\/2025\/10\/img-spacebetween-dweiiee2.jpeg-1024x576.avif\" data-object-fit=\"cover\" srcset=\"https:\/\/spacebetween.com.br\/wp-content\/uploads\/2025\/10\/img-spacebetween-dweiiee2.jpeg-1024x576.avif 1024w, https:\/\/spacebetween.com.br\/wp-content\/uploads\/2025\/10\/img-spacebetween-dweiiee2.jpeg-300x169.avif 300w, https:\/\/spacebetween.com.br\/wp-content\/uploads\/2025\/10\/img-spacebetween-dweiiee2.jpeg-768x432.avif 768w, https:\/\/spacebetween.com.br\/wp-content\/uploads\/2025\/10\/img-spacebetween-dweiiee2.jpeg-770x433.avif 770w, https:\/\/spacebetween.com.br\/wp-content\/uploads\/2025\/10\/img-spacebetween-dweiiee2.jpeg.avif 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim-0 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n<p class=\"has-text-align-center has-white-color has-text-color has-link-color has-small-font-size wp-elements-8c3bb6fff2ede93510b62d6393e40279\">Cometa 3\/I Atlas em uma das primeiras imagens capturadas em 21 de Julho<\/p>\n<\/div><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\ude80 O que h\u00e1 de novo<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A NASA anunciou um evento <strong>ao vivo<\/strong> para hoje, \u00e0s <strong>15h EST<\/strong> (que corresponde a <strong>17h no Brasil (Bras\u00edlia)<\/strong>, onde revelar\u00e1 imagens capturadas por v\u00e1rias miss\u00f5es \u2013 telesc\u00f3pios espaciais, sondas, etc. <a href=\"https:\/\/www.nasa.gov\/news-release\/nasa-to-share-comet-3i-atlas-images-from-spacecraft-telescopes\/?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noreferrer noopener\">NASA+1<\/a><\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Observa\u00e7\u00f5es recentes destacam que<strong> 3I\/ATLAS apresenta m\u00faltiplas caudas e estava \u201cfotobombando\u201d uma gal\u00e1xia distante<\/strong> \u2014 ou seja, aparece em imagens como um corpo alien\u00edgena cruzando um fundo de estrelas ou gal\u00e1xias, mostrando caudas complexas. <a href=\"https:\/\/www.livescience.com\/space\/comets\/from-another-world-3i-atlas-photobombs-a-galaxy-and-shows-off-its-multiple-tails-in-stunning-new-image?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noreferrer noopener\">Live Science<\/a><br><br>A nova foto abaixo mostra a<strong> longa cauda e a anticauda secund\u00e1ria de 3I\/ATLAS<\/strong>, bem como v\u00e1rios outros <strong>jatos menores emergindo de sua coma<\/strong>. A <strong>gal\u00e1xia distante NGC 4691<\/strong> tamb\u00e9m pode ser vista no canto superior esquerdo da imagem.<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-cover has-custom-content-position is-position-bottom-left has-white-color has-text-color has-link-color wp-elements-7c3a17f4d21de3c70600cebc2c3d2781\"><img data-dominant-color=\"121516\" data-has-transparency=\"false\" style=\"--dominant-color: #121516;\" decoding=\"async\" width=\"1024\" height=\"576\" class=\"wp-block-cover__image-background wp-image-2025 not-transparent\" alt=\"\" src=\"https:\/\/spacebetween.com.br\/wp-content\/uploads\/2025\/11\/img-spacebetween-4fie3j282-1-1024x576.avif\" data-object-fit=\"cover\" srcset=\"https:\/\/spacebetween.com.br\/wp-content\/uploads\/2025\/11\/img-spacebetween-4fie3j282-1-1024x576.avif 1024w, https:\/\/spacebetween.com.br\/wp-content\/uploads\/2025\/11\/img-spacebetween-4fie3j282-1-300x169.avif 300w, https:\/\/spacebetween.com.br\/wp-content\/uploads\/2025\/11\/img-spacebetween-4fie3j282-1-768x432.avif 768w, https:\/\/spacebetween.com.br\/wp-content\/uploads\/2025\/11\/img-spacebetween-4fie3j282-1-770x433.avif 770w, https:\/\/spacebetween.com.br\/wp-content\/uploads\/2025\/11\/img-spacebetween-4fie3j282-1.avif 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim-0 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n<p class=\"has-text-align-center has-white-color has-text-color has-link-color has-small-font-size wp-elements-8a2dd138c93809eeaa6398ec5c71dba3\">Cr\u00e9dito: Satoru Murata<\/p>\n<\/div><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Instrumentos em <strong>Marte<\/strong> tamb\u00e9m o captaram: <strong>sondas orbitando Marte tiveram a oportunidade de observar esse cometa <\/strong>quando a Terra n\u00e3o tinha vis\u00e3o direta \u2014 o que mostra o esfor\u00e7o global para acompanhar esse objeto. <a href=\"https:\/\/www.skyatnightmagazine.com\/news\/comet-3i-atlas-mars-observations-planetary-defence?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noreferrer noopener\">Sky at Night Magazine<\/a><\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A atividade do cometa \u00e9 surpreendente: j\u00e1 foram detectados gases e vapores que normalmente exigem proximidade solar maior. Por exemplo, a emiss\u00e3o de vapor de \u00e1gua \u2014 ou seus subprodutos \u2014 lan\u00e7ada quando o corpo ainda estava relativamente longe. <a href=\"https:\/\/timesofindia.indiatimes.com\/science\/interstellar-comet-3i\/atlas-is-leaking-water-in-space-nasa-says-its-unlike-anything-ever-seen-before\/articleshow\/124403331.cms?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noreferrer noopener\">The Times of India<\/a><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83e\uddec Por que isso importa para n\u00f3s<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Origem interestelar<\/strong>: esse objeto traz dentro de si registros de um sistema estelar diferente \u2014 ou at\u00e9 bem antigo (alguns estudos sugerem at\u00e9 7 bilh\u00f5es de anos ou mais) \u2014 o que representa uma janela direta para materiais c\u00f3smicos fora do Sistema Solar. <a href=\"https:\/\/en.wikipedia.org\/wiki\/3I\/ATLAS?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noreferrer noopener\">Wikipedia+1<\/a><br><br><\/li>\n\n\n\n<li><strong>Composi\u00e7\u00e3o<\/strong>: entender o que esse cometa \u201croubou\u201d de seu sistema original \u2014 gelo, poeira, gases \u2014 ajuda a comparar com os cometas do nosso sistema solar e entender diferen\u00e7as ou semelhan\u00e7as.<br><br><\/li>\n\n\n\n<li><strong>Prote\u00e7\u00e3o planet\u00e1ria<\/strong>: acredita-se que estudar tais objetos pode auxiliar em futuros m\u00e9todos de defesa planet\u00e1ria, pois din\u00e2micas incomuns nos ensinam mais sobre tr\u00e1fego de corpos espaciais em nosso entorno. <a href=\"https:\/\/www.skyatnightmagazine.com\/news\/comet-3i-atlas-mars-observations-planetary-defence?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noreferrer noopener\">Sky at Night Magazine<\/a><br><br><\/li>\n\n\n\n<li><strong>Inspirador<\/strong>: al\u00e9m da ci\u00eancia pura, \u00e9 uma oportunidade de fasc\u00ednio universal \u2014 ver algo de outro sistema cruzar o nosso, adicionar contexto \u00e0 nossa \u201ccasa\u201d espacial, \u00e9 sempre impactante.<br><br><\/li>\n\n\n\n<li><strong>Intrigante<\/strong>: O cometa 3I\/ATLAS tem exibido repetidamente um pequeno jato, ou “anticauda”, frequentemente apontando na dire\u00e7\u00e3o oposta \u00e0 sua cauda principal. Os pesquisadores acreditam que isso seja resultado do excesso de poeira sendo expelido da superf\u00edcie do cometa.<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-cover has-custom-content-position is-position-bottom-left\"><img data-dominant-color=\"2f2f2c\" data-has-transparency=\"false\" style=\"--dominant-color: #2f2f2c;\" decoding=\"async\" width=\"1024\" height=\"576\" class=\"wp-block-cover__image-background wp-image-2024 not-transparent\" alt=\"\" src=\"https:\/\/spacebetween.com.br\/wp-content\/uploads\/2025\/11\/img-spacebetween-4fie3j23-1024x576.avif\" data-object-fit=\"cover\" srcset=\"https:\/\/spacebetween.com.br\/wp-content\/uploads\/2025\/11\/img-spacebetween-4fie3j23-1024x576.avif 1024w, https:\/\/spacebetween.com.br\/wp-content\/uploads\/2025\/11\/img-spacebetween-4fie3j23-300x169.avif 300w, https:\/\/spacebetween.com.br\/wp-content\/uploads\/2025\/11\/img-spacebetween-4fie3j23-768x432.avif 768w, https:\/\/spacebetween.com.br\/wp-content\/uploads\/2025\/11\/img-spacebetween-4fie3j23-770x433.avif 770w, https:\/\/spacebetween.com.br\/wp-content\/uploads\/2025\/11\/img-spacebetween-4fie3j23.avif 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim-0 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n<p class=\"has-text-align-center has-white-color has-text-color has-link-color has-small-font-size wp-elements-0cb0ab4e8247fcd48abbf70851d17020\">Cr\u00e9ditos: Observat\u00f3rio Internacional Gemini\/NOIRLab\/NSF\/AURA\/Shadow the Scientist<\/p>\n<\/div><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udcc6 O que acompanhar<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Quando<\/strong>: quarta-feira, 19 de novembro de 2025, \u00e0s 15h EST (\u2192 equivalente a 17h em Bras\u00edlia, 18h em Campinas).<br><br><\/li>\n\n\n\n<li><strong>Onde<\/strong>: no site da NASA, no canal oficial da NASA no YouTube, e possivelmente retransmiss\u00f5es em m\u00eddias de divulga\u00e7\u00e3o cient\u00edfica. <a href=\"https:\/\/www.youtube.com\/NASA\">https:\/\/www.youtube.com\/NASA<\/a><br><br><\/li>\n\n\n\n<li><strong>O que esperar<\/strong>: novas imagens em alta resolu\u00e7\u00e3o, talvez anima\u00e7\u00f5es da trajet\u00f3ria, dados sobre composi\u00e7\u00e3o ou comportamentos inesperados (caudas, emiss\u00e3o de gases, etc.).<br><br><\/li>\n\n\n\n<li><strong>Dica<\/strong>: para quem quiser acompanhar, garanta uma conex\u00e3o est\u00e1vel, utilize fones se poss\u00edvel para captar coment\u00e1rios dos cientistas, e prepare-se para anota\u00e7\u00f5es \u2014 esse pode ser um dos grandes momentos de divulga\u00e7\u00e3o astron\u00f4mica deste ano.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u270d\ufe0f Chamada para comunidade SpaceBetween<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u201cHoje \u00e0 tarde, olhe para o c\u00e9u \u2014 ou melhor, para a sua tela \u2014 e testemunhe um corpo interestelar cruzar nosso sistema. O <strong>3I\/ATLAS n\u00e3o \u00e9 apenas um visitante: \u00e9 uma mensagem de outro canto da gal\u00e1xia, chegando at\u00e9 n\u00f3s para contar quem somos e de onde viemos<\/strong>. <\/p>\n\n\n\n<p>Junte-se \u00e0 transmiss\u00e3o, compartilhe sua empolga\u00e7\u00e3o e vamos juntos conversar sobre o que mais poder\u00e1 surgir dessa vis\u00e3o. <\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>Hoje \u00e9 o grande dia para quem acompanha o universo e suas surpresas: a NASA ir\u00e1 divulgar imagens e descobertas in\u00e9ditas sobre o cometa interestelar 3I\/ATLAS \u2014 e o momento promete ser hist\u00f3rico. O hor\u00e1rio da confer\u00eancia ser\u00e1 entre \u00e0s 16hs e 17hs aqui no Brasil. \ud83d\udd2d Contexto geral O objeto conhecido como 3I\/ATLAS \u00e9 apenas o terceiro visitante confirmado de fora do nosso sistema solar, depois de 1I\/\u02bbOumuamua (2017) e 2I\/Borisov (2019). NASA Science+2Ag\u00eancia Espacial Europeia+2 Seu nome explica […]<\/p>\n","protected":false},"author":1,"featured_media":2027,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[3],"tags":[451,14,177,38,43,512],"class_list":["post-2022","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-astronomia","tag-3i-atlas","tag-astronomia","tag-cometa","tag-exploracao-espacial","tag-nasa","tag-news"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/spacebetween.com.br\/wp-content\/uploads\/2025\/11\/img-spacebetween-4fie3j285.avif","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/spacebetween.com.br\/index.php\/wp-json\/wp\/v2\/posts\/2022","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spacebetween.com.br\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spacebetween.com.br\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/spacebetween.com.br\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/spacebetween.com.br\/index.php\/wp-json\/wp\/v2\/comments?post=2022"}],"version-history":[{"count":6,"href":"https:\/\/spacebetween.com.br\/index.php\/wp-json\/wp\/v2\/posts\/2022\/revisions"}],"predecessor-version":[{"id":2044,"href":"https:\/\/spacebetween.com.br\/index.php\/wp-json\/wp\/v2\/posts\/2022\/revisions\/2044"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spacebetween.com.br\/index.php\/wp-json\/wp\/v2\/media\/2027"}],"wp:attachment":[{"href":"https:\/\/spacebetween.com.br\/index.php\/wp-json\/wp\/v2\/media?parent=2022"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spacebetween.com.br\/index.php\/wp-json\/wp\/v2\/categories?post=2022"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spacebetween.com.br\/index.php\/wp-json\/wp\/v2\/tags?post=2022"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}