{"id":21964,"date":"2021-02-11T16:34:02","date_gmt":"2021-02-11T15:34:02","guid":{"rendered":"https:\/\/www.laterredufutur.com\/accueil\/?p=21964"},"modified":"2021-02-11T16:34:02","modified_gmt":"2021-02-11T15:34:02","slug":"decouverte-de-la-vapeur-deau-dans-latmosphere-de-mars","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/decouverte-de-la-vapeur-deau-dans-latmosphere-de-mars\/","title":{"rendered":"D\u00e9couverte : de la vapeur d&rsquo;eau dans l&rsquo;atmosph\u00e8re de 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<p>Selon deux scientifiques britanniques, de l&rsquo;eau s&rsquo;\u00e9vapore sous forme d&rsquo;hydrog\u00e8ne de l&rsquo;atmosph\u00e8re martienne. Ils ont indiqu\u00e9 ce 10 f\u00e9vrier 2021 avoir d\u00e9tect\u00e9 de la vapeur d\u2019eau s\u2019\u00e9chappant de l\u2019atmosph\u00e8re martienne. Un nouvel indice qui pourrait accr\u00e9diter la th\u00e8se selon laquelle la plan\u00e8te rouge aurait \u00e0 une \u00e9poque abrit\u00e9 la vie.<\/p>\n<p>Il est largement admis que Mars a poss\u00e9d\u00e9 dans le pass\u00e9 de l\u2019eau en abondance sous forme liquide, avec des lacs et des rivi\u00e8res. Aujourd\u2019hui, toute l\u2019eau de la plan\u00e8te est principalement enferm\u00e9e dans ses calottes glaci\u00e8res ou sous terre.<\/p>\n<p>La compr\u00e9hension de l\u2019\u00e9volution de l\u2019eau sur Mars boulevers\u00e9e<br \/>\nMais selon une nouvelle \u00e9tude publi\u00e9e dans la revue Science Advances par deux chercheurs britanniques de l\u2019Open University, une partie de cette eau s\u2019\u00e9vapore encore, sous forme d\u2019hydrog\u00e8ne s\u2019\u00e9chappant de l\u2019atmosph\u00e8re martienne.<\/p><div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"2\" 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>La d\u00e9couverte a \u00e9t\u00e9 r\u00e9alis\u00e9e gr\u00e2ce \u00e0 un petit appareil nomm\u00e9 NOMAD \u2013 plac\u00e9 \u00e0 bord de la sonde ExoMars de l\u2019Agence spatiale europ\u00e9enne (ESA) et du russe Roscosmos \u2013 qui mesure la lumi\u00e8re passant \u00e0 travers l\u2019atmosph\u00e8re de la plan\u00e8te. \u00ab L\u2019instrument NOMAD est en train de changer fondamentalement notre compr\u00e9hension de l\u2019\u00e9volution de l\u2019eau sur Mars \u00bb, s\u2019est r\u00e9joui le docteur Manish Patel, co-auteur de l\u2019\u00e9tude.<\/p>\n<p>\u00ab Un \u00e9l\u00e9ment cl\u00e9 \u00bb pour percer les myst\u00e8res de Mars<br \/>\nSelon ce ma\u00eetre de conf\u00e9rences en Sciences des plan\u00e8tes, l\u2019instrument \u00ab donne une connaissance in\u00e9dite des isotopes de l\u2019eau dans l\u2019atmosph\u00e8re de Mars en fonction \u00e0 la fois du temps et de leur localisation \u00bb sur la plan\u00e8te, un \u00ab \u00e9l\u00e9ment crucial pour comprendre comment Mars a perdu son eau au fil du temps \u00bb, et donc comment son \u00ab habitabilit\u00e9 a chang\u00e9 au long de son histoire \u00bb.<\/p>\n<p>\u00ab Comprendre la vapeur d\u2019eau sur Mars nous aidera \u00e0 r\u00e9pondre \u00e0 la question essentielle : y avait-il de la vie sur Mars ? \u00bb, a-t-elle ajout\u00e9.<\/p>\n<p>extrait et source : <a href=\"https:\/\/www.20minutes.fr\/sciences\/2974371-20210210-vapeur-eau-decouverte-atmosphere-mars\" rel=\"noopener\" target=\"_blank\">https:\/\/www.20minutes.fr\/<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"21964\">(232)<\/p>\n<!--CusAds0-->\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Selon deux scientifiques britanniques, de l&rsquo;eau s&rsquo;\u00e9vapore sous forme d&rsquo;hydrog\u00e8ne de l&rsquo;atmosph\u00e8re martienne. Ils ont indiqu\u00e9 ce 10 f\u00e9vrier 2021&#8230;<\/p>\n","protected":false},"author":1,"featured_media":11256,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"ngg_post_thumbnail":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"D\u00e9couverte : de la vapeur d'eau dans l'atmosph\u00e8re de #Mars @laterredufutur.com Terra Projects","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[22],"tags":[252,333,123],"class_list":["post-21964","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-espace","tag-atmosphere","tag-eau","tag-mars","wpcat-22-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/03\/dernier-lever-de-soleil-de-son-ann%C3%A9e-dans-lespace-le-1er-mars-2015.jpg?fit=1090%2C725&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-5Ig","jetpack-related-posts":[{"id":22179,"url":"https:\/\/www.laterredufutur.com\/accueil\/leau-de-mars-est-toujours-sur-la-planete\/","url_meta":{"origin":21964,"position":0},"title":"L&rsquo;eau de Mars est toujours sur la plan\u00e8te","author":"Admin","date":"19 mars 2021","format":false,"excerpt":"Une nouvelle \u00e9tude sugg\u00e8re qu\u2019une grande partie de l\u2019eau qui semble avoir disparu de la plan\u00e8te rouge pourrait tr\u00e8s bien avoir \u00e9t\u00e9 absorb\u00e9e par sa cro\u00fbte. Lorsque l'on regarde les images du site d'atterrissage du dernier rover martien de la Nasa, Perseverance, d\u00e9crit comme un ancien lac o\u00f9 se jetait\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\/2019\/05\/mars-eau-vie.jpg?fit=1024%2C533&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/05\/mars-eau-vie.jpg?fit=1024%2C533&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/05\/mars-eau-vie.jpg?fit=1024%2C533&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/05\/mars-eau-vie.jpg?fit=1024%2C533&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":4726,"url":"https:\/\/www.laterredufutur.com\/accueil\/de-leau-a-profusion-dans-lespace\/","url_meta":{"origin":21964,"position":1},"title":"De l&rsquo;eau \u00e0 profusion dans l&rsquo;espace","author":"Admin","date":"12 janvier 2009","format":false,"excerpt":"Si l'on suit les derni\u00e8res d\u00e9couvertes spaciales, l'eau est d\u00e9couverte sous toutes ses formes, et semble \u00eatre pr\u00e9sente partout. Le ph\u00e9nom\u00e8ne concerne aussi bien les proches plan\u00e8tes, que les lunes de plan\u00e8tes g\u00e9antes, ou encore, d'exoplan\u00e8tes ou bien de l'univers primitif. L'eau est \u00e9galement une source de vie, car sans\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\/spaw\/images\/mars_2.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":22404,"url":"https:\/\/www.laterredufutur.com\/accueil\/les-oceans-de-mars-seraient-caches-sous-sa-surface\/","url_meta":{"origin":21964,"position":2},"title":"Les oc\u00e9ans de Mars seraient cach\u00e9s sous sa surface","author":"Admin","date":"19 avril 2021","format":false,"excerpt":"Les oc\u00e9ans de Mars pourraient ne pas avoir disparus dans l'espace. L'importante quantit\u00e9 d'eau des oc\u00e9ans de Mars a pu rester enfouie sous la cro\u00fbte de Mars selon une nouvelle \u00e9tude. Des travaux ant\u00e9rieurs ont r\u00e9v\u00e9l\u00e9 que Mars \u00e9tait autrefois suffisamment humide pour couvrir toute sa surface avec un oc\u00e9an\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\/06\/mars-water1.jpg?fit=1000%2C1000&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/06\/mars-water1.jpg?fit=1000%2C1000&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/06\/mars-water1.jpg?fit=1000%2C1000&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/06\/mars-water1.jpg?fit=1000%2C1000&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":9146,"url":"https:\/\/www.laterredufutur.com\/accueil\/latmosphere-martienne-emportee-par-les-vents-solaires\/","url_meta":{"origin":21964,"position":3},"title":"L&rsquo;atmosph\u00e8re martienne emport\u00e9e par les vents solaires","author":"Admin","date":"5 novembre 2015","format":false,"excerpt":"Le titre de la conf de la Nasa, tr\u00e8s po\u00e9tique:\u00a0Gone With the Solar Wind, aka, l'atmosph\u00e8re de Mars aurait \u00e9t\u00e9 emport\u00e9e par les vents solaires. O\u00f9 sont pass\u00e9s l'atmosph\u00e8re et les oc\u00e9ans de Mars? Si la pression n\u2019est pas assez forte, c\u2019est tout simplement \u00e0 cause de l\u2019\u00e9rosion de l\u2019atmosph\u00e8re\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\/11\/mars-solar-wind.png?fit=1024%2C576&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/11\/mars-solar-wind.png?fit=1024%2C576&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/11\/mars-solar-wind.png?fit=1024%2C576&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/11\/mars-solar-wind.png?fit=1024%2C576&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":5438,"url":"https:\/\/www.laterredufutur.com\/accueil\/de-leau-liquide-pourrait-etre-piegee-dans-le-sol-de-mars\/","url_meta":{"origin":21964,"position":4},"title":"De l&rsquo;eau liquide pourrait \u00eatre pi\u00e9g\u00e9e dans le sol de Mars","author":"Admin","date":"15 avril 2015","format":false,"excerpt":"Gr\u00e2ce aux donn\u00e9es relev\u00e9es par Curiosity, on a d\u00e9couvert dans le sol de Mars du perchlorate de calcium, une sorte de sel qui absorbe la vapeur d'eau de l'atmosph\u00e8re pour former une sorte de \"saumure\". Des analyses de donn\u00e9es envoy\u00e9es par le robot am\u00e9ricain Curiosity renforcent l'hypoth\u00e8se selon laquelle de\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\/mars2.jpg?fit=833%2C413&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/mars2.jpg?fit=833%2C413&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/mars2.jpg?fit=833%2C413&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/mars2.jpg?fit=833%2C413&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":14868,"url":"https:\/\/www.laterredufutur.com\/accueil\/et-si-mars-devenait-habitable-grace-a-un-champ-magnetique-cree-de-toute-piece\/","url_meta":{"origin":21964,"position":5},"title":"Et si Mars devenait habitable gr\u00e2ce \u00e0 un champ magn\u00e9tique cr\u00e9\u00e9 de toute pi\u00e8ce","author":"Admin","date":"10 mars 2017","format":false,"excerpt":"Lors d'un r\u00e9cent colloque de la Nasa, des chercheurs ont propos\u00e9 une id\u00e9e ing\u00e9nieuse pour terraformer Mars : cr\u00e9er un bouclier magn\u00e9tique artificiel pour supprimer l'\u00e9rosion de son atmosph\u00e8re. Bien que situ\u00e9e dans la zone d'habitabilit\u00e9 du Soleil, Mars est diff\u00e9rente de la Terre. La pression de son atmosph\u00e8re est\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\/2017\/03\/mars-magnetisme.jpg?fit=630%2C329&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/03\/mars-magnetisme.jpg?fit=630%2C329&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/03\/mars-magnetisme.jpg?fit=630%2C329&ssl=1&resize=525%2C300 1.5x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/21964","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=21964"}],"version-history":[{"count":1,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/21964\/revisions"}],"predecessor-version":[{"id":21965,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/21964\/revisions\/21965"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/11256"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=21964"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=21964"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=21964"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}