{"id":273094,"date":"2025-11-19T16:06:29","date_gmt":"2025-11-19T19:06:29","guid":{"rendered":"https:\/\/new.tvpublica.com.ar\/?p=273094"},"modified":"2025-11-19T16:06:29","modified_gmt":"2025-11-19T19:06:29","slug":"hallaron-senales-de-vida-en-rocas-de-3-300-millones-de-anos","status":"publish","type":"post","link":"https:\/\/test-back.tvpublica.com.ar\/2025\/11\/19\/hallaron-senales-de-vida-en-rocas-de-3-300-millones-de-anos\/","title":{"rendered":"Hallaron se\u00f1ales de vida en rocas de 3.300 millones de a\u00f1os"},"content":{"rendered":"<p>Un grupo de cient\u00edficos detect\u00f3 algunos de los signos de vida m\u00e1s antiguos de la Tierra usando un nuevo m\u00e9todo que reconoce las huellas qu\u00edmicas de organismos vivos en rocas primitivas.<\/p>\n<p>El estudio, publicado\u00a0<a class=\"external-link\" title=\"Enlace externo \u2014 en la revista PNAS\" href=\"https:\/\/www.pnas.org\/doi\/10.1073\/pnas.2514534122\" target=\"_blank\" rel=\"noopener follow\">en la revista PNAS<\/a>, ofrece tambi\u00e9n\u00a0una mirada prometedora en la b\u00fasqueda de vida m\u00e1s all\u00e1 de nuestro planeta.<\/p>\n<p>Los investigadores hallaron\u00a0la evidencia de vida microbiana en rocas encontradas en Sud\u00e1frica, que tendr\u00edan\u00a03.300 millones de a\u00f1os, cuando la Tierra apenas ten\u00eda una cuarta parte de su edad actual.<\/p>\n<p>Tambi\u00e9n en ese pa\u00eds africano detectaron rastros moleculares de microbios que realizaban fotos\u00edntesis productora de ox\u00edgeno en rocas de 2.500 millones de a\u00f1os.<\/p>\n<p>Basados en un m\u00e9todo de aprendizaje autom\u00e1tico e inteligencia artificial, el equipo fue capaz de diferenciar entre mol\u00e9culas org\u00e1nicas de origen biol\u00f3gico -plantas, microbios y animales- y mol\u00e9culas org\u00e1nicas de origen no vivo, con una precisi\u00f3n mayor al 90 %.<\/p>\n<p>&#8220;El hallazgo m\u00e1s notable es que podemos desentra\u00f1ar vestigios de vida antigua a partir de mol\u00e9culas muy degradadas. Se trata de un cambio de paradigma en la forma en que buscamos vida antigua&#8221;, afirm\u00f3 el coautor Robert Hazen, mineralogista y astrobi\u00f3logo de la Instituci\u00f3n Carnegie para la Ciencia en Washington.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Un m\u00e9todo que combina an\u00e1lisis qu\u00edmico y aprendizaje autom\u00e1tico identifica rastros de vida org\u00e1nica primitiva en rocas descubiertas en Sud\u00e1frica. Esto podr\u00eda ser \u00fatil para buscar vida en otros planetas.<\/p>\n","protected":false},"author":40,"featured_media":273096,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"featured_image_url":"","rank_math_title":"","rank_math_description":"","rank_math_focus_keyword":"","rank_math_robots":"","rank_math_canonical_url":"","tvp_seo_json":"","tvp_ads_json":"","tvp_ads_json_public":"","footnotes":"","_links_to":"","_links_to_target":""},"categories":[24,22],"tags":[1817,30612,1351],"class_list":["post-273094","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ciencia","category-noticias","tag-ciencia","tag-planetas","tag-sudafrica"],"seo":{"title":null,"description":null,"focus_keywords":[],"robots":null,"canonical":null,"permalink":"https:\/\/test-back.tvpublica.com.ar\/2025\/11\/19\/hallaron-senales-de-vida-en-rocas-de-3-300-millones-de-anos\/","rankmath_getHead":"https:\/\/test-back.tvpublica.com.ar\/wp-json\/rankmath\/v1\/getHead?url=https%3A%2F%2Ftest-back.tvpublica.com.ar%2F2025%2F11%2F19%2Fhallaron-senales-de-vida-en-rocas-de-3-300-millones-de-anos%2F"},"acf":{"display_object":"image","volanta":"Ciencia","background_header":false,"objeto_destacado":false,"gallery":false,"related_posts":[{"posts":""}],"imagenes_mosaico":false},"featured_image_url":"https:\/\/api.tvpublica.com.ar\/wp-content\/uploads\/2025\/11\/Sin-t\u00edtulo-15.png","_links":{"self":[{"href":"https:\/\/test-back.tvpublica.com.ar\/wp-json\/wp\/v2\/posts\/273094","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/test-back.tvpublica.com.ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/test-back.tvpublica.com.ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/test-back.tvpublica.com.ar\/wp-json\/wp\/v2\/users\/40"}],"replies":[{"embeddable":true,"href":"https:\/\/test-back.tvpublica.com.ar\/wp-json\/wp\/v2\/comments?post=273094"}],"version-history":[{"count":1,"href":"https:\/\/test-back.tvpublica.com.ar\/wp-json\/wp\/v2\/posts\/273094\/revisions"}],"predecessor-version":[{"id":273097,"href":"https:\/\/test-back.tvpublica.com.ar\/wp-json\/wp\/v2\/posts\/273094\/revisions\/273097"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test-back.tvpublica.com.ar\/wp-json\/wp\/v2\/media\/273096"}],"wp:attachment":[{"href":"https:\/\/test-back.tvpublica.com.ar\/wp-json\/wp\/v2\/media?parent=273094"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test-back.tvpublica.com.ar\/wp-json\/wp\/v2\/categories?post=273094"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test-back.tvpublica.com.ar\/wp-json\/wp\/v2\/tags?post=273094"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}