{"id":4113,"date":"2025-10-30T15:24:02","date_gmt":"2025-10-30T18:24:02","guid":{"rendered":"https:\/\/overticeportal.com.br\/?p=4113"},"modified":"2025-10-30T15:24:04","modified_gmt":"2025-10-30T18:24:04","slug":"moleculas-basicas-para-a-origem-da-vida-sao-achadas-fora-da-via-lactea","status":"publish","type":"post","link":"https:\/\/portalam9.com.br\/?p=4113","title":{"rendered":"Mol\u00e9culas b\u00e1sicas para a origem da vida s\u00e3o achadas fora da Via L\u00e1ctea"},"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\">Pela primeira vez, pesquisadores encontraram mol\u00e9culas b\u00e1sicas para a vida congeladas fora da Via L\u00e1ctea. Os componentes foram detectados ao redor da protoestrela ST6 \u2013 estrela jovem e em forma\u00e7\u00e3o \u2013, localizada na gal\u00e1xia Grande Nuvem de Magalh\u00e3es (LCM).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A descoberta foi liderada pela pesquisadora Marta Sewilo, da Nasa e da Universidade de Maryland, nos Estados Unidos. Os resultados foram publicados na revista cient\u00edfica Astrophysical Journal Letters em 20 de outubro.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Os cientistas identificaram cinco mol\u00e9culas org\u00e2nicas complexas (MOCs) \u2013 mol\u00e9culas que cont\u00e9m carbono, al\u00e9m de ter pelo menos seis \u00e1tomos. O achado foi poss\u00edvel devido ao uso do instrumento de Infravermelho M\u00e9dio (MIRI) do Telesc\u00f3pio Espacial James Webb (JWST), que permite o estudo de estrelas em forma\u00e7\u00e3o dentro de nuvens de poeira.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">At\u00e9 metanol entre as mol\u00e9culas<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Das cinco mol\u00e9culas encontradas, estavam compostos comumente achados da Terra, como etanol e metanol, subst\u00e2ncia presente em\u00a0bebidas alco\u00f3licas adulteradas no Brasil. Tamb\u00e9m foram identificados o formiato de metila e acetalde\u00eddo, usados para a fabrica\u00e7\u00e3o de produtos industriais, e \u00e1cido ac\u00e9tico, principal componente do vinagre.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c9 a primeira vez que metanol, etanol, formiato de metila e acetalde\u00eddo s\u00e3o achados fora da Via L\u00e1ctea. J\u00e1 o \u00e1cido ac\u00e9tico nunca tinha sido detectado congelado em nenhum lugar do espa\u00e7o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pistas sugerem que o gliceralde\u00eddo tamb\u00e9m est\u00e1 entre as descobertas. \u2014 a mol\u00e9cula est\u00e1 ligada aos a\u00e7\u00facares presentes no RNA, mas mais investiga\u00e7\u00f5es s\u00e3o necess\u00e1rias para confirmar sua detec\u00e7\u00e3o.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Pr\u00f3ximos passos nas buscas<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">De acordo com os pesquisadores, o estudo ajudou a encontrar mais evid\u00eancias sobre a origem das mol\u00e9culas b\u00e1sicas para a vida.<\/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\">\u201cO que aprendemos na Grande Nuvem de Magalh\u00e3es pode ser aplicado \u00e0 compreens\u00e3o dessas gal\u00e1xias mais distantes, de quando o universo era muito mais jovem. As condi\u00e7\u00f5es extremas nos dizem mais sobre como rea\u00e7\u00f5es qu\u00edmicas org\u00e2nicas complexas podem ocorrer nesses ambientes primitivos, onde h\u00e1 muito menos elementos pesados \u200b\u200bcomo carbono, nitrog\u00eanio e oxig\u00eanio dispon\u00edveis para rea\u00e7\u00f5es qu\u00edmicas\u201d, explica Marta em comunicado.<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">O objetivo dos pesquisadores \u00e9 expandir as\u00a0buscas por mais mol\u00e9culas\u00a0at\u00e9 a gal\u00e1xia mais pr\u00f3xima da Terra, a Pequena Nuvem de Magalh\u00e3es. \u201c<em>Com essa descoberta, fizemos avan\u00e7os significativos na compreens\u00e3o de como a qu\u00edmica complexa surge no universo e abrimos novas possibilidades para pesquisas sobre a origem da vida<\/em>\u201d, exalta a pesquisadora.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Fonte: Metr\u00f3poles<strong> \/ <\/strong>Foto: NASA\/ESA\/CSA\/JPL-Caltech\/M. Sewi\u0142o et al. (2025)<br><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tempo de leitura: 2 minutos Pela primeira vez, pesquisadores encontraram mol\u00e9culas b\u00e1sicas para a vida<\/p>\n","protected":false},"author":3,"featured_media":4114,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-4113","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\u00e9culas b\u00e1sicas para a origem da vida s\u00e3o achadas fora da Via L\u00e1ctea - 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=4113\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Mol\u00e9culas b\u00e1sicas para a origem da vida s\u00e3o achadas fora da Via L\u00e1ctea - 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