{"id":2448,"date":"2023-08-19T00:38:49","date_gmt":"2023-08-19T00:38:49","guid":{"rendered":"https:\/\/campusunivers.com\/?p=2448"},"modified":"2023-08-19T00:38:50","modified_gmt":"2023-08-19T00:38:50","slug":"mars-le-mystere-de-lapparition-de-la-vie-bientot-resolu-de-nouvelles-decouvertes-prometteuses","status":"publish","type":"post","link":"https:\/\/campusunivers.com\/?p=2448","title":{"rendered":"Mars\u00a0: Le myst\u00e8re de l\u2019apparition de la vie bient\u00f4t r\u00e9solu\u00a0? De nouvelles d\u00e9couvertes prometteuses"},"content":{"rendered":"\n<p><strong>CURIOSITY<\/strong>&nbsp;Et si on savait enfin comment la vie appara\u00eet&nbsp;? Cette d\u00e9couverte a \u00e9t\u00e9 faite par des chercheurs toulousains et lyonnais avec le concours du CNES, du Canada et des Etats-Unis<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Des scientifiques ont d\u00e9couvert sur Mars des t\u00e9moins fossiles d\u2019un climat cyclique, organis\u00e9 en saisons s\u00e8ches et humides comme sur Terre.<\/li>\n\n\n\n<li>S\u2019ajoutant \u00e0 la d\u00e9couverte de mol\u00e9cules organiques simples, cet environnement a pu offrir les conditions id\u00e9ales \u00e0 l\u2019apparition de compos\u00e9s organiques complexes.<\/li>\n\n\n\n<li>Ces travaux ouvrent de nouvelles perspectives de recherche sur l\u2019origine de la vie, dont les vestiges ont disparu sur Terre.<\/li>\n<\/ul>\n\n\n\n<p>Une d\u00e9couverte qui pourrait faire avancer grandement les recherches de tous les scientifiques&nbsp;: d\u2019o\u00f9 vient la vie&nbsp;? Des motifs t\u00e9moins d\u2019un climat cyclique, similaire \u00e0 celui de la Terre, viennent d\u2019\u00eatre d\u00e9couverts sur Mars par des scientifiques du CNRS, de l\u2019<a href=\"https:\/\/www.univ-tlse3.fr\/\" target=\"_blank\" rel=\"noreferrer noopener\">Universit\u00e9 Toulouse III<\/a>&nbsp;\u2013 Paul Sabatier et de l<a href=\"https:\/\/www.univ-lyon1.fr\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u2019Universit\u00e9 Claude Bernard Lyon 1<\/a>, gr\u00e2ce au rover Curiosity de la&nbsp;<a href=\"https:\/\/www.nasa.gov\/\" target=\"_blank\" rel=\"noreferrer noopener\">NASA<\/a>, avec la participation du CNES. Cette d\u00e9couverte majeure ouvre la voie \u00e0 de nouvelles perspectives de recherches sur l\u2019origine de la vie.<\/p>\n\n\n\n<p>Contrairement \u00e0 la surface de la Terre, celle de la plan\u00e8te&nbsp;<a href=\"https:\/\/www.20minutes.fr\/sciences\/mars\/\">Mars<\/a>&nbsp;n\u2019est pas renouvel\u00e9e par la tectonique des plaques. Elle a ainsi pr\u00e9serv\u00e9 de vastes terrains spectaculaires par l\u2019abondance de rivi\u00e8res et lacs fossiles datant de plusieurs milliards d\u2019ann\u00e9es. Depuis&nbsp;2012, le rover Curiosity de la&nbsp;<a href=\"https:\/\/www.20minutes.fr\/sciences\/nasa\/\">Nasa<\/a>, premier \u00e0 explorer de tels vestiges, avait d\u00e9j\u00e0 d\u00e9tect\u00e9 la pr\u00e9sence de mol\u00e9cules organiques simples pouvant \u00eatre form\u00e9es par des processus g\u00e9ologiques ou biologiques.<\/p>\n\n\n\n<p class=\"has-text-align-right\"><strong>Source&nbsp;:<\/strong> <a href=\"http:\/\/www.20minutes.fr\">www.20minutes.fr<\/a> &nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CURIOSITY&nbsp;Et si on savait enfin comment la vie appara\u00eet&nbsp;? Cette d\u00e9couverte a \u00e9t\u00e9 faite par des chercheurs toulousains et lyonnais<\/p>\n","protected":false},"author":1,"featured_media":2449,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[25,35,48,41,29],"tags":[],"class_list":["post-2448","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","category-comprendre","category-magspace","category-mysteres","category-science-technique"],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/campusunivers.com\/wp-content\/uploads\/2023\/08\/1200x768_motif-fossile-hexagonal-dans-les-roches-sedimentaires-analysees-par-curiosity-au-3154e-jour-de-sa-progression-dans-le-cratere-de-gale-sur-mars.webp?fit=501%2C320&ssl=1","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/campusunivers.com\/index.php?rest_route=\/wp\/v2\/posts\/2448","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/campusunivers.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/campusunivers.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/campusunivers.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/campusunivers.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2448"}],"version-history":[{"count":1,"href":"https:\/\/campusunivers.com\/index.php?rest_route=\/wp\/v2\/posts\/2448\/revisions"}],"predecessor-version":[{"id":2450,"href":"https:\/\/campusunivers.com\/index.php?rest_route=\/wp\/v2\/posts\/2448\/revisions\/2450"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/campusunivers.com\/index.php?rest_route=\/wp\/v2\/media\/2449"}],"wp:attachment":[{"href":"https:\/\/campusunivers.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2448"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/campusunivers.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2448"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/campusunivers.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2448"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}