{"id":11681,"date":"2016-04-15T00:00:30","date_gmt":"2016-04-14T22:00:30","guid":{"rendered":"http:\/\/www.laterredufutur.com\/accueil\/?p=11681"},"modified":"2016-04-06T15:56:09","modified_gmt":"2016-04-06T13:56:09","slug":"la-salinite-des-oceans-des-exoplanetes-pourrait-nous-faire-revoir-leur-habitabilite","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/la-salinite-des-oceans-des-exoplanetes-pourrait-nous-faire-revoir-leur-habitabilite\/","title":{"rendered":"La salinit\u00e9 des oc\u00e9ans des exoplan\u00e8tes pourrait nous faire revoir leur habitabilit\u00e9"},"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 style=\"text-align: justify;\">D\u2019apr\u00e8s une nouvelle \u00e9tude scientifique, la teneur en sel pourrait influer sur les courants marins et donc la temp\u00e9rature des p\u00f4les.<\/p>\n<p style=\"text-align: justify;\">Le sel. Qui aurait cru que sa pr\u00e9sence dans les oc\u00e9ans pourrait nous amener \u00e0 revoir de plus pr\u00e8s l\u2019habitabilit\u00e9 de certaines exoplan\u00e8tes? C\u2019est pourtant ce que rapporte Popular Science, s\u2019appuyant sur une \u00e9tude publi\u00e9e le 4 avril dans la revue Proceedings of the National Academy of Sciences.<\/p>\n<p style=\"text-align: justify;\">Sur Terre, une multitude de courants marins longent la surface de l\u2019oc\u00e9an jusqu\u2019au p\u00f4le arctique avant de plonger dans les fonds marins et de repartir vers le sud du globe. Ces flux sont responsables de modifications cycliques sur le climat, \u00e0 travers le Gulf Stream par exemple. Plus globalement, ils participent du fait que les temp\u00e9ratures sont plus froides du c\u00f4t\u00e9 des p\u00f4les et plus chaudes vers l\u2019\u00e9quateur terrestre.<\/p>\n<p style=\"text-align: justify;\">Mais que se passerait-il si on trouvait sur une exoplan\u00e8te un oc\u00e9an \u00e0 la salinit\u00e9 diff\u00e9rente de la n\u00f4tre? D\u2019apr\u00e8s les chercheurs, le sens des courants marins pourrait alors \u00eatre invers\u00e9. La ligne de l\u2019\u00e9quateur terrestre correspondrait alors \u00e0 un climat plus froid que les p\u00f4les, qui en deviendraient du coup des zones plus facilement habitables, contrairement \u00e0 ce que l\u2019on trouve sur Terre. Et ce, m\u00eame si l\u2019exoplan\u00e8te se trouve assez \u00e9loign\u00e9e de son \u00e9toile.<\/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 style=\"text-align: justify;\">De quoi \u00e9largir le champ de recherches des scientifiques sur la qu\u00eate d\u2019une plan\u00e8te potentiellement habitable. Surtout que, jusqu\u2019\u00e0 pr\u00e9sent, l\u2019essentiel du travail se concentre d\u2019abord sur une \u00e9tude de l\u2019atmosph\u00e8re et des distances.<\/p>\n<p style=\"text-align: justify;\">\u00abBien s\u00fbr, de nombreux crit\u00e8res ont des chances de diff\u00e9rer de ceux valables pour la Terre, y compris parmi ceux qui ont une influence sur la circulation des oc\u00e9ans \u2013tels que la force de mar\u00e9e, la p\u00e9riode de rotation du globe, la profondeur de l\u2019eau et la localisation des continents. Mais c\u2019est un travail important qui va nous aider \u00e0 mieux comprendre de mani\u00e8re plus d\u00e9taill\u00e9e comment certaines plan\u00e8tes \u00e9loign\u00e9es pourraient \u00eatre habitables ou pas\u00bb, s\u2019est enthousiasm\u00e9e Jodie Cullum, en charge de l\u2019\u00e9tude.<\/p>\n<p style=\"text-align: justify;\">source : <a href=\"http:\/\/www.slate.fr\/story\/116379\/exoplanetes-oceans-sales-habitables\" target=\"_blank\">http:\/\/www.slate.fr\/<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"11681\">(361)<\/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>D\u2019apr\u00e8s une nouvelle \u00e9tude scientifique, la teneur en sel pourrait influer sur les courants marins et donc la temp\u00e9rature des&#8230;<\/p>\n","protected":false},"author":1,"featured_media":11682,"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_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":"La salinit\u00e9 des oc\u00e9ans des exoplan\u00e8tes pourrait nous faire revoir leur habitabilit\u00e9 @laterredufutur","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},"jetpack_post_was_ever_published":false},"categories":[22],"tags":[252,117,359,362,121,261,202,2034],"class_list":["post-11681","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-espace","tag-atmosphere","tag-espace","tag-exoplanete","tag-habitable","tag-planete","tag-pole","tag-recherche","tag-sel","wpcat-22-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/04\/exoplanete.jpg?fit=1090%2C500&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-32p","jetpack-related-posts":[{"id":7679,"url":"https:\/\/www.laterredufutur.com\/accueil\/des-exoplanetes-plus-habitables-que-la-terre\/","url_meta":{"origin":11681,"position":0},"title":"Des exoplan\u00e8tes plus habitables que la Terre","author":"Admin","date":"27 juillet 2015","format":false,"excerpt":"Des exoplan\u00e8tes deux \u00e0 trois fois plus massives que la Terre pourraient se r\u00e9v\u00e9ler plus adapt\u00e9es \u00e0 l\u2019apparition de la vie que notre plan\u00e8te. Dans cette hypoth\u00e8se, deux astronomes proposent d\u2019\u00e9tudier avec la plus grande attention le syst\u00e8me plan\u00e9taire qui semble entourer l\u2019une des \u00e9toiles les plus proches du Soleil,\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\/2014\/03\/.._photos_planete-habitable3.jpg?fit=640%2C350&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2014\/03\/.._photos_planete-habitable3.jpg?fit=640%2C350&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2014\/03\/.._photos_planete-habitable3.jpg?fit=640%2C350&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":4672,"url":"https:\/\/www.laterredufutur.com\/accueil\/gulf-stream-ou-circulation-thermohaline\/","url_meta":{"origin":11681,"position":1},"title":"Gulf Stream ou circulation Thermohaline ?","author":"Admin","date":"12 novembre 2008","format":false,"excerpt":"Voici des pr\u00e9cisions qui apporteront une pierre \u00e0 l'\u00e9difice des courants marins de ce qui se passe dans l'Altantique Nord. Les m\u00e9dias et les r\u00e9alisateurs d'Hollywood ont fait de ce courant oc\u00e9anique une star. Source de chaleur pour l'h\u00e9misph\u00e8re Nord, il serait menac\u00e9 d'extinction par le r\u00e9chauffement climatique. Info ou\u2026","rel":"","context":"Dans &quot;Courants Marins&quot;","block_context":{"text":"Courants Marins","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/circulation-oceanique\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/gulf-stream2.jpg?fit=250%2C274&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":25919,"url":"https:\/\/www.laterredufutur.com\/accueil\/un-monde-potentiellement-habitable-de-la-taille-de-la-terre-decouvert-a-40-annees-lumiere\/","url_meta":{"origin":11681,"position":2},"title":"Un monde potentiellement habitable de la taille de la Terre d\u00e9couvert \u00e0 40 ann\u00e9es-lumi\u00e8re","author":"Admin","date":"27 mai 2024","format":false,"excerpt":"Une plan\u00e8te qui ressemble \u00e0 s'y m\u00e9prendre \u00e0 la Terre vient d'\u00eatre d\u00e9couverte en orbite autour d'une \u00e9toile situ\u00e9e \u00e0 seulement 40 ann\u00e9es-lumi\u00e8re du syst\u00e8me solaire. Cette exoplan\u00e8te a un rayon tr\u00e8s similaire \u00e0 celui de notre plan\u00e8te, ce qui laisse supposer une composition rocheuse similaire. Il est int\u00e9ressant 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\/2024\/05\/Gliese-12-exoplanete.jpg?fit=642%2C361&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/Gliese-12-exoplanete.jpg?fit=642%2C361&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/Gliese-12-exoplanete.jpg?fit=642%2C361&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":26914,"url":"https:\/\/www.laterredufutur.com\/accueil\/selon-une-etude-les-planetes-trappist-1-pourraient-etre-des-planetes-ocean\/","url_meta":{"origin":11681,"position":3},"title":"Selon une \u00e9tude, les plan\u00e8tes TRAPPIST-1 pourraient \u00eatre des plan\u00e8tes oc\u00e9an","author":"Admin","date":"22 mai 2025","format":false,"excerpt":"Un syst\u00e8me de sept plan\u00e8tes situ\u00e9 \u00e0 quelque 40 ann\u00e9es-lumi\u00e8re de la Terre pourrait nager dans l'eau, selon de nouvelles recherches. En f\u00e9vrier 2017, des scientifiques ont annonc\u00e9 la d\u00e9couverte de plusieurs exoplan\u00e8tes en orbite autour de l'\u00e9toile naine rouge TRAPPIST-1, et depuis, les astronomes surveillent attentivement le syst\u00e8me \u00e0\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\/2025\/05\/Trappistn-Illustration.jpg?fit=1024%2C415&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/05\/Trappistn-Illustration.jpg?fit=1024%2C415&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/05\/Trappistn-Illustration.jpg?fit=1024%2C415&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/05\/Trappistn-Illustration.jpg?fit=1024%2C415&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":24206,"url":"https:\/\/www.laterredufutur.com\/accueil\/24-exoplanetes-connues-serait-plus-habitables-que-la-terre\/","url_meta":{"origin":11681,"position":4},"title":"24 exoplan\u00e8tes connues serait plus habitables que la Terre","author":"Admin","date":"8 juillet 2022","format":false,"excerpt":"Le fait que la Terre regorge de vie fait qu'il semble \u00e9trange de se demander s'il pourrait y avoir d'autres plan\u00e8tes dans notre galaxie qui pourraient \u00eatre encore plus propices \u00e0 la vie. Ignorer ces plan\u00e8tes \u00ab superhabitables \u00bb s'assimilerait \u00e0 du nombrilisme et de l'\u00e9gocentrisme. Le plus important du\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\/2022\/07\/planete-superhabitable.jpg?fit=1000%2C665&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/07\/planete-superhabitable.jpg?fit=1000%2C665&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/07\/planete-superhabitable.jpg?fit=1000%2C665&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/07\/planete-superhabitable.jpg?fit=1000%2C665&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":26882,"url":"https:\/\/www.laterredufutur.com\/accueil\/des-scientifiques-revelent-que-les-super-terres-pourraient-etre-curieusement-communes\/","url_meta":{"origin":11681,"position":5},"title":"Des scientifiques r\u00e9v\u00e8lent que les \u00ab super-terres \u00bb pourraient \u00eatre curieusement communes","author":"Admin","date":"10 mai 2025","format":false,"excerpt":"Des exoplan\u00e8tes semblables \u00e0 la Terre pourraient \u00eatre plus r\u00e9pandues dans la Voie lact\u00e9e qu'on ne le pensait jusqu'\u00e0 pr\u00e9sent, rapportent des astronomes dans une nouvelle \u00e9tude. Les chercheurs ont d\u00e9couvert une super-Terre inhabituelle orbitant autour de son \u00e9toile \u00e0 une distance semblable \u00e0 celle de Jupiter, une plage orbitale\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\/2020\/11\/exoplanetes-habitables.jpg?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/11\/exoplanetes-habitables.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/11\/exoplanetes-habitables.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/11\/exoplanetes-habitables.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/11\/exoplanetes-habitables.jpg?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/11681","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=11681"}],"version-history":[{"count":1,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/11681\/revisions"}],"predecessor-version":[{"id":11683,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/11681\/revisions\/11683"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/11682"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=11681"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=11681"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=11681"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}