{"id":11649,"date":"2025-09-11T09:38:50","date_gmt":"2025-09-11T12:38:50","guid":{"rendered":"https:\/\/fenati.org.br\/?p=11649"},"modified":"2025-09-11T11:03:15","modified_gmt":"2025-09-11T14:03:15","slug":"rochas-de-marte-revelam-indicios-de-vida-antiga-aponta-nasa","status":"publish","type":"post","link":"https:\/\/homolog.fenati.org.br\/en\/rochas-de-marte-revelam-indicios-de-vida-antiga-aponta-nasa\/","title":{"rendered":"Rochas de Marte revelam ind\u00edcios de vida antiga, aponta NASA"},"content":{"rendered":"<p><strong>NASA &#8211;<\/strong> Pesquisadores identificaram ind\u00edcios que podem apontar para a exist\u00eancia de vida microbiana antiga em Marte. A descoberta foi feita a partir de uma amostra de rocha coletada pelo rover Perseverance, da <a href=\"https:\/\/pt.wikipedia.org\/wiki\/NASA\" target=\"_blank\" rel=\"noopener\">NASA<\/a>, em uma regi\u00e3o da Cratera de Jezero, local onde h\u00e1 bilh\u00f5es de anos existia um lago.<\/p>\n<p>Segundo o estudo, publicado nesta quarta-feira (10) na revista Nature, a amostra cont\u00e9m minerais que podem ter se formado por processos associados a atividades biol\u00f3gicas. Entre eles est\u00e3o a vivianita, um mineral de fosfato de ferro, e a greigita, de sulfeto de ferro, que costumam surgir na Terra em ambientes onde microrganismos utilizam mat\u00e9ria org\u00e2nica em seu metabolismo.<\/p>\n<p><a href=\"https:\/\/fenati.org.br\/embraer-contrato-fornecer-50-jatos-norte-americana\/\" target=\"_blank\" rel=\"noopener\"><strong>LEIA: Embraer fecha contrato para fornecer 50 jatos a empresa norte-americana<\/strong><\/a><\/p>\n<p>Joel Hurowitz, cientista da Universidade Stony Brook e um dos respons\u00e1veis pela pesquisa, destacou que as caracter\u00edsticas encontradas representam uma \u201cbioassinatura potencial\u201d, embora n\u00e3o seja poss\u00edvel confirmar que se tratam de vest\u00edgios biol\u00f3gicos. Isso porque rea\u00e7\u00f5es qu\u00edmicas semelhantes tamb\u00e9m podem ocorrer sem a presen\u00e7a de vida.<\/p>\n<p>O material analisado foi extra\u00eddo em julho de 2024 no chamado C\u00e2nion Safira, regi\u00e3o composta por sedimentos que remontam a mais de 3,5 bilh\u00f5es de anos. Para os cientistas, essa \u00e9 uma das evid\u00eancias mais relevantes at\u00e9 agora de que Marte pode ter oferecido condi\u00e7\u00f5es habit\u00e1veis em um passado remoto.<\/p>\n<p>A expectativa \u00e9 que an\u00e1lises futuras aprofundem o entendimento sobre a origem desses minerais. Caso a amostra seja trazida \u00e0 Terra em miss\u00f5es futuras, ser\u00e1 poss\u00edvel testar de forma mais precisa se a biologia teve, de fato, papel na sua forma\u00e7\u00e3o.<\/p>\n<p><em><strong>(Com informa\u00e7\u00f5es de Ag\u00eancia Brasil)<\/strong><\/em><br \/>\n<em><strong>(Foto: Reprodu\u00e7\u00e3o\/Freepik)<\/strong><\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>Amostras coletadas pelo rover Perseverance trazem novas pistas sobre o passado do planeta<\/p>","protected":false},"author":6,"featured_media":11650,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[42],"tags":[13],"class_list":["post-11649","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-noticias","tag-sindical"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Rochas de Marte revelam ind\u00edcios de vida antiga, aponta NASA - 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