{"id":4210,"date":"2025-11-29T14:55:24","date_gmt":"2025-11-29T17:55:24","guid":{"rendered":"https:\/\/overticeportal.com.br\/?p=4210"},"modified":"2025-11-29T14:56:01","modified_gmt":"2025-11-29T17:56:01","slug":"3i-atlas-nasa-revela-4-informacoes-importantes-sobre-o-cometa-raro","status":"publish","type":"post","link":"https:\/\/www.portalam9.com.br\/?p=4210","title":{"rendered":"3I\/Atlas: Nasa revela 4 informa\u00e7\u00f5es importantes sobre o cometa raro"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><em>Tempo de leitura: 3 minutos<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Descoberto em 1\u00ba de julho, o cometa interestelar 3I\/Atlas tem intrigado a comunidade cient\u00edfica. Por conta de caracter\u00edsticas que chamam a aten\u00e7\u00e3o de qualquer um, muitas d\u00favidas surgiram sobre a origem do objeto. Algumas especula\u00e7\u00f5es chegaram a afirmar se tratar de uma nave alien\u00edgena e n\u00e3o um cometa \u2013 teoria refutada pela maioria dos especialistas, com base em evid\u00eancias robustas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Com a paralisa\u00e7\u00e3o do governo norte-americano, a Nasa p\u00f4de fazer pouco para \u201cacalmar os \u00e2nimos\u201d. Mas, com o fim da greve, a t\u00e3o esperada coletiva da estatal sobre os achados ocorreu na \u00faltima quarta-feira (19\/11).No encontro foram apresentadas observa\u00e7\u00f5es e an\u00e1lises preliminares de mais de 20 miss\u00f5es em todo Sistema Solar sobre o 3I\/Atlas. Tamb\u00e9m foram compartilhadas imagens in\u00e9ditas do objeto.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Fatos relevantes sobre o 3I\/Atlas, segundo a Nasa<\/strong><\/h2>\n\n\n\n<h2 class=\"wp-block-heading\">1- O 3I\/Atlas realmente \u00e9 um cometa<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Na coletiva, o recado dos cientistas norte-americanos foi claro: o 3I\/Atlas \u00e9 um cometa. \u201cDesejamos muito encontrar sinais de vida no universo, mas o 3I\/Atlas \u00e9 um cometa\u201d, afirmou o administrador associado da ag\u00eancia espacial, Amit Kshatriya.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A teoria de invas\u00e3o alien foi criada quando o astrof\u00edsico Avi Loeb, da Universidade de Harvard (EUA), divulgou um estudo sem revis\u00e3o por pares alegando que os atributos do cometa eram semelhantes aos de uma espa\u00e7onave alien\u00edgena disfar\u00e7ada. No entanto, toda a especula\u00e7\u00e3o foi negada pela Nasa, que ainda afirmou que o 3I\/Atlas n\u00e3o representa perigo para a Terra e nem para outro planeta do Sistema Solar. A dist\u00e2ncia em que ele se aproximar\u00e1 \u00e9 segura para todos.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cEste objeto \u00e9 um cometa. Ele tem a apar\u00eancia e o comportamento de um cometa, e todas as evid\u00eancias apontam para que seja um cometa\u201d, completou Kshatriya.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2- Nasa mobilizou monitoramento especial do cometa<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Como o cometa sempre esteve ao lado oposto do Sol em rela\u00e7\u00e3o \u00e0 Terra, a observa\u00e7\u00e3o terrestre foi comprometida. Para resolver a quest\u00e3o, a ag\u00eancia espacial reuniu v\u00e1rias equipes para rastrear o visitante interestelar. Utilizando instrumentos de v\u00e1rios locais do Sistema Solar, incluindo a Terra e Marte, o objeto foi observado de diversos pontos distintos.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3- Oportunidade de observar sistemas estelares antigos<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A estimativa \u00e9 que o 3I\/Atlas esteja viajando pelo espa\u00e7o h\u00e1 muito tempo e tenha origem em um sistema plen\u00e1rio mais antigo que o nosso. \u201cS\u00f3 de pensar nisso j\u00e1 me d\u00e1 arrepios, para ser sincero. \u00c9 uma nova janela para a composi\u00e7\u00e3o e a hist\u00f3ria de outros sistemas solares\u201d, afirmou o cientista da Nasa Tom Statler.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">4- Ind\u00edcios qu\u00edmicos chamam a aten\u00e7\u00e3o<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">De acordo com os pesquisadores, quando chegou perto do sol, o 3I\/Atlas se comportou como um cometa t\u00edpico, por\u00e9m algumas particularidades chamaram a aten\u00e7\u00e3o. Por exemplo, a propor\u00e7\u00e3o de di\u00f3xido de carbono para \u00e1gua \u00e9 maior que o normal dentro dele. Seu g\u00e1s tamb\u00e9m \u00e9 mais rico em n\u00edquel do que ferro, um atributo incomum.Com gr\u00e3os maiores que o normal, a poeira ao redor do objeto tamb\u00e9m intriga a comunidade cient\u00edfica. Em viagem pelo nosso Sistema Solar, o corpo celeste continuar\u00e1 sendo investigado. \u201cAinda estamos aprendendo, inclusive sobre quais perguntas ainda precisamos fazer. E isso, claro, \u00e9 o processo cient\u00edfico em a\u00e7\u00e3o\u201d, finalizou Statler.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Fonte: Metr\u00f3poles \/ Foto: Reprodu\u00e7\u00e3o \/ NASA<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tempo de leitura: 3 minutos Descoberto em 1\u00ba de julho, o cometa interestelar 3I\/Atlas tem<\/p>\n","protected":false},"author":3,"featured_media":4212,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-4210","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-curiosidades-2"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>3I\/Atlas: Nasa revela 4 informa\u00e7\u00f5es importantes sobre o cometa raro - Portal Amazonas 9<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/portalam9.com.br\/?p=4210\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"3I\/Atlas: Nasa revela 4 informa\u00e7\u00f5es importantes sobre o cometa raro - 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