{"id":21427,"date":"2020-10-02T17:00:00","date_gmt":"2020-10-02T15:00:00","guid":{"rendered":"https:\/\/www.laterredufutur.com\/accueil\/?p=21427"},"modified":"2020-09-30T18:18:15","modified_gmt":"2020-09-30T16:18:15","slug":"des-scientifiques-ont-trouve-des-lacs-deau-salee-sur-mars","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/des-scientifiques-ont-trouve-des-lacs-deau-salee-sur-mars\/","title":{"rendered":"Des scientifiques ont trouv\u00e9 des lacs d&rsquo;eau sal\u00e9e sur Mars"},"content":{"rendered":"<div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"1\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n\n<p class=\"wp-block-paragraph\">Au p\u00f4le sud de Mars, des chercheurs italiens ont remarqu\u00e9 la pr\u00e9sence d&rsquo;un grand lac entour\u00e9 de petits plans d&rsquo;eau sal\u00e9e.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En 2018, une \u00e9quipe de scientifiques italiens a rep\u00e9r\u00e9 un lac d&rsquo;eau sal\u00e9e sur\u00a0Mars. Mesurant 20 kilom\u00e8tres de diam\u00e8tre, les chercheurs avaient toutefois \u00e9mis des r\u00e9serves concernant cette d\u00e9couverte.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">eux ans plus tard, de nouvelles recherches ont \u00e9t\u00e9 effectu\u00e9es et la pr\u00e9sence du lac a \u00e9t\u00e9 confirm\u00e9e.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">Plusieurs plans d&rsquo;eau sal\u00e9e<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">La nouvelle a \u00e9t\u00e9 publi\u00e9e dans une \u00e9tude dans la revue Nature, men\u00e9e par des pal\u00e9ontologues italiens. Autour du grand lac d\u00e9couvert en 2018, les scientifiques ont trouv\u00e9 d&rsquo;autres zones humides.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>\u00ab Nous avons confirm\u00e9 l&rsquo;existence d&rsquo;un grand plan d&rsquo;eau ind\u00e9pendant, et nous avons \u00e9galement trouv\u00e9 d&rsquo;autres petites \u00eeles. Cela signifie qu&rsquo;il ne s&rsquo;agit pas d&rsquo;une d\u00e9couverte isol\u00e9e et fortuite. C&rsquo;est un syst\u00e8me, et \u00e7a change les choses \u00bb<\/em>, a annonc\u00e9 Elena Pettinelli, co-autrice de l&rsquo;\u00e9tude.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Selon les chercheurs, l&rsquo;eau pr\u00e9sente sur la&nbsp;<a href=\"https:\/\/www.demotivateur.fr\/article\/un-lac-d-eau-salee-de-pres-de-20-kilometres-de-largeur-decouvert-sur-la-planete-mars-14044\">plan\u00e8te<\/a>&nbsp;serait une solution aqueuse hypersaline. En effet, la temp\u00e9rature sur Mars \u00e9tant glaciale, les liquides d\u00e9couverts devraient \u00eatre gel\u00e9s. Or, s&rsquo;ils ont une forte concentration en sel, cela les emp\u00eacheraient de se solidifier.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>\u00ab La possibilit\u00e9 de masses \u00e9tendues d&rsquo;eau hypersaline sur Mars est particuli\u00e8rement prometteuse \u00e0 cause du potentiel de vie microbienne \u00bb<\/em>, ont rappel\u00e9 les auteurs de l&rsquo;\u00e9tude.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"493\" data-attachment-id=\"21429\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/des-scientifiques-ont-trouve-des-lacs-deau-salee-sur-mars\/mars-lac-souterrain-eau-salee\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/09\/mars-lac-souterrain-eau-salee.jpg?fit=750%2C493&amp;ssl=1\" data-orig-size=\"750,493\" data-comments-opened=\"1\" data-image-meta=\"{&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"mars-lac-souterrain-eau-salee\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/09\/mars-lac-souterrain-eau-salee.jpg?fit=750%2C493&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/09\/mars-lac-souterrain-eau-salee.jpg?resize=750%2C493&#038;ssl=1\" alt=\"\" class=\"wp-image-21429\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/09\/mars-lac-souterrain-eau-salee.jpg?w=750&amp;ssl=1 750w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/09\/mars-lac-souterrain-eau-salee.jpg?resize=300%2C197&amp;ssl=1 300w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><figcaption>Cr\u00e9dit photo : Lauro et al, Nature<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">extrait et source : <a href=\"https:\/\/www.demotivateur.fr\/article\/sur-mars-un-grand-lac-et-plusieurs-plans-d-eau-ont-ete-decouverts-22506\">https:\/\/www.demotivateur.fr\/<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"21427\">(422)<\/p><!--CusAds0-->\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Au p\u00f4le sud de Mars, des chercheurs italiens ont remarqu\u00e9 la pr\u00e9sence d&rsquo;un grand lac entour\u00e9 de petits plans d&rsquo;eau&#8230;<\/p>\n","protected":false},"author":1,"featured_media":21428,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"ngg_post_thumbnail":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[22],"tags":[2223,3178,123],"class_list":["post-21427","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-espace","tag-eau-salee","tag-lac","tag-mars","wpcat-22-id"],"jetpack_shortlink":"https:\/\/wp.me\/p631RN-5zB","jetpack-related-posts":[{"id":5882,"url":"https:\/\/www.laterredufutur.com\/accueil\/mars-pourrait-avoir-de-leau-liquide-salee\/","url_meta":{"origin":21427,"position":0},"title":"Mars pourrait avoir de l&rsquo;eau liquide sal\u00e9e","author":"Admin","date":"20 avril 2015","format":false,"excerpt":"Les chercheurs savent depuis longtemps qu'il y avait de l'eau sous forme de glace sur Mars. Maintenant, de nouvelles recherches de Mars rover Curiosity de la NASA montre qu'il est possible qu'il y ait de l'eau liquide \u00e0 proximit\u00e9 de la surface de Mars. L'explication est que de la substance\u2026","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/eau-salee-liquide-sur-mars.jpg?fit=720%2C382&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/eau-salee-liquide-sur-mars.jpg?fit=720%2C382&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/eau-salee-liquide-sur-mars.jpg?fit=720%2C382&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/eau-salee-liquide-sur-mars.jpg?fit=720%2C382&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":17892,"url":"https:\/\/www.laterredufutur.com\/accueil\/des-scientifiques-decouvrent-des-creatures-etranges-dans-un-lac-perdu-sous-glaciaire-de-lantarctique\/","url_meta":{"origin":21427,"position":1},"title":"Des scientifiques d\u00e9couvrent des cr\u00e9atures \u00e9tranges dans un lac perdu sous glaciaire de l&rsquo;antarctique","author":"Admin","date":"21 janvier 2019","format":false,"excerpt":"Une vie organique a \u00e9t\u00e9 d\u00e9couverte au fond du lac subglaciaire Mercer en r\u00e9gion antarctique par les scientifiques du projet international SALSA. Ils aspirent \u00e0 trouver d\u2019autres formes de vie, plus \u00e9volu\u00e9es, dans un des \u00e9cosyst\u00e8mes les plus isol\u00e9s de la plan\u00e8te. John Priscu, scientifique \u00e0 l'Universit\u00e9 du Montana et\u2026","rel":"","context":"Dans &quot;Divers&quot;","block_context":{"text":"Divers","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/divers\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/01\/AntarcticaHiddenLakeCreatures-salsa-antarctique-2.jpg?fit=1200%2C901&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/01\/AntarcticaHiddenLakeCreatures-salsa-antarctique-2.jpg?fit=1200%2C901&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/01\/AntarcticaHiddenLakeCreatures-salsa-antarctique-2.jpg?fit=1200%2C901&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/01\/AntarcticaHiddenLakeCreatures-salsa-antarctique-2.jpg?fit=1200%2C901&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/01\/AntarcticaHiddenLakeCreatures-salsa-antarctique-2.jpg?fit=1200%2C901&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":30730,"url":"https:\/\/www.laterredufutur.com\/accueil\/il-y-a-20-000-ans-un-immense-lac-deau-douce-recouvrait-une-partie-de-lamerique-il-etait-dix-fois-plus-vaste-quaujourdhui\/","url_meta":{"origin":21427,"position":2},"title":"Il y a 20 000 ans, un immense lac d&rsquo;eau douce recouvrait une partie de l&rsquo;Am\u00e9rique : il \u00e9tait dix fois plus vaste qu&rsquo;aujourd&rsquo;hui","author":"Admin","date":"10 octobre 2026","format":false,"excerpt":"Dans l'ouest des \u00c9tats-Unis, un lac aujourd'hui c\u00e9l\u00e8bre pour son extr\u00eame salinit\u00e9 cache une histoire climatique fascinante. Une nouvelle \u00e9tude scientifique r\u00e9v\u00e8le qu'\u00e0 plusieurs reprises au cours des 240 000 derni\u00e8res ann\u00e9es, cette \u00e9tendue d'eau s'est transform\u00e9e en un gigantesque lac presque enti\u00e8rement doux, couvrant une superficie plus de dix\u2026","rel":"","context":"Dans &quot;Arch\u00e9ologie&quot;","block_context":{"text":"Arch\u00e9ologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/archeologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/10\/lac-eau-douce-20000-ans-usa.png?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/10\/lac-eau-douce-20000-ans-usa.png?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/10\/lac-eau-douce-20000-ans-usa.png?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/10\/lac-eau-douce-20000-ans-usa.png?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/10\/lac-eau-douce-20000-ans-usa.png?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":12762,"url":"https:\/\/www.laterredufutur.com\/accueil\/un-mineral-tres-rare-sur-mars-prouve-quil-existait-des-oceans\/","url_meta":{"origin":21427,"position":3},"title":"Un min\u00e9ral tr\u00e8s rare sur Mars prouve qu&rsquo;il existait des oc\u00e9ans","author":"Admin","date":"25 juin 2016","format":false,"excerpt":"Le robot Curiosity est tomb\u00e9 sur de la Tridymite, un min\u00e9ral volcanique assez rare sur Terre. Son nom rime avec Kryptonite et laisse imaginer les plus chouettes sc\u00e9narios de science-fiction. De la Tridymite a, en effet, \u00e9t\u00e9 d\u00e9couverte en juin 2015 par le robot Curiosity dans le crat\u00e8re Gale, sur\u2026","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/06\/ocean-mars.jpg?fit=945%2C556&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/06\/ocean-mars.jpg?fit=945%2C556&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/06\/ocean-mars.jpg?fit=945%2C556&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/06\/ocean-mars.jpg?fit=945%2C556&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":8432,"url":"https:\/\/www.laterredufutur.com\/accueil\/de-leau-coule-sur-mars\/","url_meta":{"origin":21427,"position":4},"title":"De l&rsquo;eau coule sur Mars","author":"Admin","date":"28 septembre 2015","format":false,"excerpt":"La NASA avait fait miroiter il y a quelques jours une \u00ab d\u00e9couverte scientifique majeure \u00bb concernant Mars. Depuis lors, les sp\u00e9culations allaient bon train sur la webosph\u00e8re, toujours pr\u00eate \u00e0 s\u2019enflammer lorsqu\u2019il est question de la Plan\u00e8te rouge : d\u00e9tection d\u2019une forme de vie, de sources d\u2019eau liquide, etc.\u2026","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/09\/eau-mars.png?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/09\/eau-mars.png?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/09\/eau-mars.png?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/09\/eau-mars.png?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/09\/eau-mars.png?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":16897,"url":"https:\/\/www.laterredufutur.com\/accueil\/un-immense-lac-deau-decouvert-sur-la-planete-mars\/","url_meta":{"origin":21427,"position":5},"title":"Un immense lac d&rsquo;eau d\u00e9couvert sur la plan\u00e8te Mars","author":"Admin","date":"25 juillet 2018","format":false,"excerpt":"Cela pourrait \u00eatre notre meilleure chance de trouver la vie sur la plan\u00e8te rouge.\u00a0 Nous savons enfin o\u00f9 se cachait toute cette eau martienne ! Les scientifiques italiens ont d\u00e9couvert un \u00e9norme r\u00e9servoir de liquide cach\u00e9 \u00e0 1,5 kilom\u00e8tre (0,93 mille) sous la calotte glaciaire polaire sud, s'\u00e9tendant sur 20\u2026","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/07\/mars-eau-lac.jpg?fit=620%2C349&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/07\/mars-eau-lac.jpg?fit=620%2C349&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/07\/mars-eau-lac.jpg?fit=620%2C349&ssl=1&resize=525%2C300 1.5x"},"classes":[]}],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/09\/mars.jpg?fit=1100%2C619&ssl=1","_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/21427","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/comments?post=21427"}],"version-history":[{"count":1,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/21427\/revisions"}],"predecessor-version":[{"id":21430,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/21427\/revisions\/21430"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/21428"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=21427"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=21427"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=21427"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}