{"id":4467,"date":"2026-02-04T10:03:25","date_gmt":"2026-02-04T13:03:25","guid":{"rendered":"https:\/\/overticeportal.com.br\/?p=4467"},"modified":"2026-02-04T10:03:27","modified_gmt":"2026-02-04T13:03:27","slug":"molecula-complexa-e-essencial-para-a-origem-da-vida-e-achada-no-espaco","status":"publish","type":"post","link":"https:\/\/portalam9.com.br\/?p=4467","title":{"rendered":"Mol\u00e9cula complexa e essencial para a origem da vida \u00e9 achada no espa\u00e7o"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><em>Tempo de leitura: 2 minutos<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Astr\u00f4nomos internacionais identificaram a maior mol\u00e9cula contendo enxofre j\u00e1 vista fora da Terra.\u00a0<strong>Teorias apontam que o elemento qu\u00edmico tem papel fundamental para a\u00a0origem da vida\u00a0no espa\u00e7o e na Terra<\/strong>. A subst\u00e2ncia qu\u00edmica encontrada corresponde ao tiofenol (C\u2086H\u2086S), um composto org\u00e2nico em forma de anel.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O&nbsp;<strong>enxofre \u00e9 considerado um ingrediente fundamental para o surgimento da vida<\/strong>, pois ajuda a formar prote\u00ednas e enzimas presentes nos seres vivos. Anteriormente, astr\u00f4nomos at\u00e9 j\u00e1 tinham detectado o elemento qu\u00edmico no espa\u00e7o, mas em quantidades pequenas e que n\u00e3o seriam suficientes para cumprir a fun\u00e7\u00e3o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O achado de uma mol\u00e9cula grande com enxofre&nbsp;<strong>\u00e9 como se fosse o \u201celo perdido\u201d no quebra-pe\u00e7a da liga\u00e7\u00e3o entre a qu\u00edmica existente no espa\u00e7o e a vida na Terra.<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u201cEsta \u00e9 a primeira detec\u00e7\u00e3o inequ\u00edvoca de uma mol\u00e9cula complexa em forma de anel contendo enxofre no espa\u00e7o interestelar \u2013\u00a0 e um passo crucial para a compreens\u00e3o da liga\u00e7\u00e3o qu\u00edmica entre o espa\u00e7o e os\u00a0componentes b\u00e1sicos da vida\u201c, afirma o autor principal, Mitsunori Araki, em comunicado.<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">A descoberta foi liderada por astr\u00f4nomos do Instituto Max Planck de F\u00edsica Extraterrestre (MPE), na Alemanha, e do Centro de Astrobiologia CSIC-INTA (CAB), na Espanha. Os resultados est\u00e3o dispon\u00edveis desde 23 de janeiro na revista\u00a0Nature Astronomy.<\/p>\n\n\n\n<h4 class=\"wp-block-heading has-medium-font-size\">Como foi a descoberta da mol\u00e9cula<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">A mol\u00e9cula foi detectada na nuvem molecular G+0,693\u20130,027, uma regi\u00e3o onde estrelas se formam e est\u00e1 localizada a cerca de 27 mil anos-luz do nosso planeta.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Atrav\u00e9s de observa\u00e7\u00f5es astron\u00f4micas e experimentos laboratoriais, descobriu-se que ela possui um anel est\u00e1vel de seis membros e 13 \u00e1tomos ao todo,<strong>&nbsp;tamanho que supera todos os compostos com enxofre j\u00e1 identificados no espa\u00e7o<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Em seguida, a mol\u00e9cula de tiofenol l\u00edquido foi sintetizada em laborat\u00f3rio a partir de uma descarga el\u00e9trica de mil volts. Depois, os pesquisadores examinaram os resultados por meio de um espectr\u00f4metro, o que permitiu medir a emiss\u00e3o de radiofrequ\u00eancia das mol\u00e9culas \u2013 m\u00e9todo para identificar e caracterizar as mol\u00e9culas complexas de compostos org\u00e2nicos.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Por fim, a \u201cassinatura\u201d da mol\u00e9cula foi comparada a dados astron\u00f4micos de um levantamento observacional do CAB, coletados atrav\u00e9s de radiotelesc\u00f3pios.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u201cNossos resultados mostram que uma mol\u00e9cula de 13 \u00e1tomos, estruturalmente semelhante \u00e0s encontradas em cometas, existe em uma nuvem molecular jovem e sem estrelas. Isso comprova que as bases qu\u00edmicas para a vida come\u00e7am muito antes da forma\u00e7\u00e3o das estrelas\u201d, aponta o coautor do estudo, Valerio Lattanzi, cientista do MPE.<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">De acordo com os pesquisadores, o achado sugere que\u00a0h\u00e1 muitas outras mol\u00e9culas complexas com enxofre a serem detectadas no espa\u00e7o. Al\u00e9m disso, a descoberta traz\u00a0mais evid\u00eancias\u00a0que os componentes fundamentais para a origem da vida se formaram no espa\u00e7o interestelar, bem antes do surgimento do nosso planeta.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Foto: Divulga\u00e7\u00e3o\/MPE\/ NASA\/JPL-Caltech <strong>\/ <\/strong>Fonte: Metr\u00f3poles<br><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tempo de leitura: 2 minutos Astr\u00f4nomos internacionais identificaram a maior mol\u00e9cula contendo enxofre j\u00e1 vista<\/p>\n","protected":false},"author":3,"featured_media":4468,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-4467","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>Mol\u00e9cula complexa e essencial para a origem da vida \u00e9 achada no espa\u00e7o - 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