{"id":7705,"date":"2020-09-14T17:41:07","date_gmt":"2020-09-14T20:41:07","guid":{"rendered":"https:\/\/biologo.com.br\/bio\/?p=7705"},"modified":"2021-05-02T11:32:18","modified_gmt":"2021-05-02T14:32:18","slug":"possivel-vida-em-venus","status":"publish","type":"post","link":"https:\/\/biologo.com.br\/bio\/possivel-vida-em-venus\/","title":{"rendered":"Poss\u00edvel vida em V\u00eanus"},"content":{"rendered":"<p><span style=\"font-size: 14pt; color: #000000;\"><span style=\"color: #3366ff;\"><strong>Descobertos poss\u00edveis ind\u00edcios de vida em V\u00eanus: <\/strong><span style=\"color: #000000;\">Cientistas divulgaram hoje a descoberta da presen\u00e7a de g\u00e1s fosfina na atmosfera do nosso planeta vizinho, V\u00eanus. Trata-se de forte indicador da presen\u00e7a de vida, o que animou os bi\u00f3logos.<\/span><\/span><\/span><\/p>\n<h2><span style=\"font-family: 'courier new', courier, monospace; font-size: 24pt; color: #000000;\"><strong>Poss\u00edvel vida em V\u00eanus<\/strong><\/span><\/h2>\n<p><span style=\"font-size: 8pt; color: #000000;\">14\/9\/2020 ::\u00a0 Por Josu\u00e9 Fontana<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong style=\"font-family: georgia, palatino, serif; font-size: 32px;\">U<\/strong><\/span><span style=\"color: #000000;\">m estudo publicado no peri\u00f3dico cient\u00edfico <a href=\"https:\/\/www.nature.com\/natastron\/\" target=\"_blank\" rel=\"noopener noreferrer\">Nature Astronomy<\/a> est\u00e1 dando o que falar. O trabalho indicou\u00a0presen\u00e7a de fosfina, g\u00e1s que na Terra \u00e9 fruto de a\u00e7\u00e3o biol\u00f3gica<\/span><\/p>\n<p><span style=\"color: #000000;\">Em nosso planeta a fosfina est\u00e1 ligada \u00e0 vida porque \u00e9 produzida por micro-organismos do intestino de animais ou mesmo em ambientes pobres em oxig\u00eanio, como p\u00e2ntanos.<\/span><\/p>\n<figure id=\"attachment_7707\" aria-describedby=\"caption-attachment-7707\" style=\"width: 300px\" class=\"wp-caption alignright\"><a style=\"color: #000000;\" href=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/09\/vida-em-Venus.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"7707\" data-permalink=\"https:\/\/biologo.com.br\/bio\/possivel-vida-em-venus\/vida-em-venus\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/09\/vida-em-Venus.jpg?fit=631%2C351&amp;ssl=1\" data-orig-size=\"631,351\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"vida-em-V\u00eanus\" data-image-description=\"&lt;p&gt;vida em V\u00eanus&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/09\/vida-em-Venus.jpg?fit=631%2C351&amp;ssl=1\" class=\"wp-image-7707 size-medium\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/09\/vida-em-Venus.jpg?resize=300%2C167&#038;ssl=1\" alt=\"Poss\u00edvel vida em V\u00eanus\" width=\"300\" height=\"167\" srcset=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/09\/vida-em-Venus.jpg?resize=300%2C167&amp;ssl=1 300w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/09\/vida-em-Venus.jpg?w=631&amp;ssl=1 631w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-7707\" class=\"wp-caption-text\"><span style=\"color: #000000;\"><span style=\"font-size: 10pt;\">As nuvens de V\u00eanus s\u00e3o capazes de produzir raios de forma muito similar \u00e0s nuvens da Terra<\/span>. <\/span><\/figcaption><\/figure>\n<p><span style=\"color: #000000;\">A descoberta animou os pesquisadores envolvidos no projeto: &#8220;Fiquei muito surpresa, estupefata, na verdade&#8221;,\u00a0 disse a astr\u00f4noma da Universidade de Cardiff, Jane Greaves.<\/span><\/p>\n<ul>\n<li><span style=\"font-size: 14pt; color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/biologo.com.br\/bio\/documentario-exobiologia\/\">Document\u00e1rio exobiologia<\/a><\/span><\/li>\n<li><span style=\"font-size: 14pt; color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/biologo.com.br\/bio\/o-sistema-solar\/\">O Sistema Solar<\/a><\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">Esta foi a mais importante descoberta cient\u00edfica at\u00e9 hoje do que pode ser vida extraterrestre.\u00a0<\/span><span style=\"color: #000000;\">A descoberta envolveu bi\u00f3logos e cientistas de diversas \u00e1reas, de Pa\u00edses como Reino Unido, Jap\u00e3o e Estados Unidos.<\/span><\/p>\n<h3><span style=\"font-family: 'courier new', courier, monospace;\"><strong><span style=\"font-size: 12pt;\">Mol\u00e9cula venusiana pode indicar vida microbiana extraterrestre<\/span><\/strong><\/span><\/h3>\n<p><span style=\"color: #000000;\">A possibilidade de vida microbiana em V\u00eanus foi feita h\u00e1 mais de 50 anos por Carl Sagan. A teoria foi publicada em um artigo dele na revista Nature, em 1967, chamado &#8220;Vida na superf\u00edcie de V\u00eanus?&#8221;.<\/span><\/p>\n<p><span style=\"color: #000000;\">V\u00eanus \u00e9 um dos quatro planetas terrestres do Sistema Solar, significando que, como a Terra, ele \u00e9 um corpo rochoso. Em tamanho e massa, ele \u00e9 muito similar ao nosso planeta.\u00a0<\/span><\/p>\n<p><a href=\"https:\/\/biologo.com.br\/bio\/o-sistema-solar\/\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"5820\" data-permalink=\"https:\/\/biologo.com.br\/bio\/o-sistema-solar\/sistema-solar\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/04\/sistema-solar.jpg?fit=631%2C351&amp;ssl=1\" data-orig-size=\"631,351\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"sistema-solar\" data-image-description=\"&lt;p&gt;The International Astronomical Union\/Martin Kornmesser&lt;\/p&gt;\n\" data-image-caption=\"&lt;p&gt;by The International Astronomical Union\/Martin Kornmesser&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/04\/sistema-solar.jpg?fit=631%2C351&amp;ssl=1\" class=\"wp-image-5820 size-thumbnail alignleft\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/04\/sistema-solar.jpg?resize=150%2C150&#038;ssl=1\" alt=\"O sistema solar\" width=\"150\" height=\"150\" srcset=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/04\/sistema-solar.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/04\/sistema-solar.jpg?zoom=2&amp;resize=150%2C150&amp;ssl=1 300w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/04\/sistema-solar.jpg?zoom=3&amp;resize=150%2C150&amp;ssl=1 450w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><\/p>\n<p><span style=\"color: #000000;\">Entretanto, as condi\u00e7\u00f5es na superf\u00edcie venusiana diferem radicalmente daquelas na Terra, devido \u00e0 sua densa atmosfera de di\u00f3xido de carbono. A massa da atmosfera de V\u00e9nus \u00e9 composta em 96,5% de di\u00f3xido de carbono, sendo o nitrog\u00eanio a maior parte do restante.<\/span><\/p>\n<p><span style=\"color: #000000;\">Devido \u00e0s suas condi\u00e7\u00f5es extremamente hostis, uma coloniza\u00e7\u00e3o superficial de V\u00eanus est\u00e1 fora de quest\u00e3o com a tecnologia atual. <\/span><span style=\"color: #000000;\">Entretanto, a press\u00e3o atmosf\u00e9rica e a temperatura a aproximadamente 50 km acima da superf\u00edcie s\u00e3o similares \u00e0s da superf\u00edcie da Terra, e o ar da Terra (nitrog\u00eanio e oxig\u00eanio) seria um g\u00e1s ascendente na atmosfera venusiana de principalmente di\u00f3xido de carbono. Isto levou a propostas de extensas \u201ccidades flutuantes\u201d na atmosfera do planeta.<\/span><\/p>\n<p><span style=\"color: #000000;\"> Os aer\u00f3statos (bal\u00f5es mais leves que o ar) poderiam ser usados para a explora\u00e7\u00e3o inicial e posteriormente para col\u00f4nias permanentes. Entre os muitos desafios de engenharia est\u00e3o os n\u00edveis perigosos de \u00e1cido sulf\u00farico nessas altitudes.<\/span><\/p>\n<p><span style=\"color: #000000;\">Embora animados com a descoberta, muitos cientistas est\u00e3o cautelosos e preferem apostar em Marte ou nas luas de J\u00fapiter e Saturno para descobrir a exist\u00eancia de vida.<\/span><\/p>\n<blockquote><p><span style=\"color: #ffffff;\"><strong><span style=\"font-size: 14pt; font-family: 'courier new', courier, monospace;\">&#8220;Nossos artigos e dados podem ser acessados por outros pesquisadores. \u00c9 assim que a ci\u00eancia funciona&#8221;. &#8211; Jane Greaves<\/span><\/strong><\/span><\/p><\/blockquote>\n<h5><strong><span style=\"color: #000000; font-family: 'courier new', courier, monospace; font-size: 10pt;\">Estudos:<\/span><\/strong><\/h5>\n<ul>\n<li><span style=\"font-size: 8pt; color: #000000;\"><a style=\"color: #000000;\" href=\"https:\/\/www.nature.com\/articles\/s41550-020-1174-4\" target=\"_blank\" rel=\"noopener noreferrer\">Phosphine gas in the cloud decks of Venus<\/a> (em ingl\u00eas).<\/span><\/li>\n<li><span style=\"font-size: 8pt; color: #000000;\">Landis, Geoffrey A. (2003).\u00a0\u00abColonization of Venus\u00bb.\u00a0<i>AIP Conference Proceedings<\/i>.\u00a0<b>654<\/b>. pp.\u00a01193\u20131198.\u00a0<a style=\"color: #000000;\" title=\"Digital object identifier\" href=\"https:\/\/pt.wikipedia.org\/wiki\/Digital_object_identifier\">doi<\/a>:<a class=\"external text\" style=\"color: #000000;\" href=\"https:\/\/dx.doi.org\/10.1063%2F1.1541418\" rel=\"nofollow\">10.1063\/1.1541418<\/a><\/span><\/li>\n<li><span class=\"reference-text\" style=\"font-size: 8pt; color: #000000;\"><cite class=\"citation book\">Seed, David (2005). <i>A Companion to Science Fiction<\/i>. [S.l.]: Blackwell Publishing. pp.\u00a0134\u2013135.\u00a0<a style=\"color: #000000;\" title=\"International Standard Book Number\" href=\"https:\/\/pt.wikipedia.org\/wiki\/International_Standard_Book_Number\">ISBN<\/a>\u00a0<a style=\"color: #000000;\" title=\"Especial:Fontes de livros\/1405112182\" href=\"https:\/\/pt.wikipedia.org\/wiki\/Especial:Fontes_de_livros\/1405112182\">1405112182<\/a><\/cite><\/span><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Descobertos poss\u00edveis ind\u00edcios de vida em V\u00eanus: Cientistas divulgaram hoje a descoberta da presen\u00e7a de g\u00e1s fosfina na atmosfera do<\/p>\n","protected":false},"author":1,"featured_media":7707,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"Descobertos poss\u00edveis ind\u00edcios de vida em Venus: Cientistas divulgaram hoje a descoberta da presen\u00e7a de g\u00e1s fosfina na atmosfera do nosso planeta vizinho, V\u00eanus. Trata-se de forte indicador da presen\u00e7a de vida, o que animou os bi\u00f3logos.","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":[16,24],"tags":[],"class_list":["post-7705","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-astrobiologia","category-microbiologia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Poss\u00edvel vida em V\u00eanus - Descoberta instiga bi\u00f3logos - Astrobiologia<\/title>\n<meta name=\"description\" content=\"Descobertos poss\u00edveis ind\u00edcios de vida em Venus: Cientistas divulgaram hoje a descoberta da presen\u00e7a de g\u00e1s fosfina... 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