{"id":8017,"date":"2018-07-31T12:20:35","date_gmt":"2018-07-31T15:20:35","guid":{"rendered":"https:\/\/blog.mindthegraph.com\/?p=8017"},"modified":"2022-10-18T08:10:27","modified_gmt":"2022-10-18T11:10:27","slug":"nasa-water-on-mars","status":"publish","type":"post","link":"https:\/\/mindthegraph.com\/blog\/fr\/nasa-eau-sur-mars\/","title":{"rendered":"De l'eau sur Mars : Ce que vous devez savoir - et voir"},"content":{"rendered":"

Des chercheurs ont trouv\u00e9 des preuves de l'existence d'une masse d'eau liquide sur Mars.<\/p>\n

Un nouveau document intitul\u00e9 Preuve par radar de la pr\u00e9sence d'eau liquide sous-glaciaire sur Mars<\/a>\u00a0a \u00e9t\u00e9 publi\u00e9 sur Science. L'article sugg\u00e8re que de l'eau liquide pourrait se trouver sous une couche de glace au p\u00f4le sud de Mars.<\/p>\n

\"L'eau est consid\u00e9r\u00e9e comme l'une des exigences fondamentales pour la vie. Il s'agit de la premi\u00e8re masse stable d'eau liquide jamais d\u00e9couverte sur Mars, et elle pourrait \u00eatre consid\u00e9r\u00e9e comme un habitat potentiel\", a expliqu\u00e9 Roberto Orosei, un scientifique principal de l'Institut de radioastronomie en Italie qui a analys\u00e9 les donn\u00e9es.<\/p>\n

Cette d\u00e9couverte est d'autant plus \u00e9tonnante qu'il existe des lacs souterrains de ce type pr\u00e8s des p\u00f4les de la Terre, principalement au Groenland et en Antarctique. L'un de ces lacs, le lac subglaciaire Whillans, en Antarctique, n'est plus \u00e0 la surface de la Terre depuis des millions d'ann\u00e9es. Et r\u00e9cemment, des scientifiques ont d\u00e9couvert des bact\u00e9ries qui y vivent encore dans un isolement total.<\/p>\n

Le lac Vostok, situ\u00e9 sous des kilom\u00e8tres de glace, est recouvert de glace depuis au moins 15 millions d'ann\u00e9es. L'analyse des formes de vie sugg\u00e8re que le lac Vostok pourrait abriter un \u00e9cosyst\u00e8me unique bas\u00e9 sur les produits chimiques pr\u00e9sents dans les roches plut\u00f4t que sur la lumi\u00e8re du soleil, vivant en isolement pendant des centaines de milliers d'ann\u00e9es.<\/p>\n

\"Lacs
Une infographie sur le lac Vostok, le plus grand lac sous-glaciaire connu en Antarctique. On pense que l'eau liquide met des milliers d'ann\u00e9es \u00e0 traverser le lac, qui a la taille du lac Ontario en Am\u00e9rique du Nord. Cr\u00e9dit : Nicolle Rager-Fuller \/ NSF<\/figcaption><\/figure>\n
<\/div>\n
<\/div>\n

Les scientifiques ont \u00e9galement d\u00e9couvert des micro-organismes dans le sous-sol des mines. Ces micro-organismes sont apparent\u00e9s \u00e0 d'anciennes esp\u00e8ces qui vivaient autrefois dans des environnements aquatiques. De telles migrations soul\u00e8vent la possibilit\u00e9 que la m\u00eame chose se produise sur Mars - lorsque l'eau s'est retir\u00e9e, la vie s'est d\u00e9plac\u00e9e plus profond\u00e9ment sous terre.<\/p>\n

Les meilleures images de l'eau sur Mars<\/strong><\/h2>\n

 <\/p>\n

Vous savez que nous pensons que la science doit \u00eatre visuelle. Si vous voulez montrer des d\u00e9tails et attirer l'attention du lecteur dans votre travail, les ressources visuelles sont un excellent outil.<\/p>\n

J'ai donc s\u00e9lectionn\u00e9 les meilleures images de cette r\u00e9cente d\u00e9couverte.<\/p>\n

01. La calotte polaire sud de Mars, prise avec l'orbiteur Mars Express de l'Agence spatiale europ\u00e9enne. ESA\/DLR\/FU Berlin<\/strong><\/p>\n

 <\/p>\n

\"ca_0727NID_Mars_South_Polar_Ice_Cap_online\"<\/a><\/p>\n

 <\/p>\n

02. On peut \u00e9galement voir la calotte polaire sud de Mars et les r\u00e9sultats du code couleur de Mars Express superpos\u00e9s \u00e0 l'endroit o\u00f9 ils ont \u00e9t\u00e9 d\u00e9tect\u00e9s. ESA\/DLR\/FU Berlin<\/strong><\/p>\n

\"gdgh\"<\/a><\/p>\n

 <\/p>\n

03. Et pour la derni\u00e8re, la sonde Mars Express de l'Agence spatiale europ\u00e9enne qui recherche de l'eau liquide au p\u00f4le sud de la plan\u00e8te.\u00a0<\/strong>ESA\/INAF\/Davide Coero Borga<\/strong><\/p>\n

\"ffs\"<\/a><\/p>\n

 <\/p>\n

\"Suivez l'eau\"<\/a> a \u00e9t\u00e9 l'un des principaux objectifs du programme martien de la NASA. L'eau est actuellement le moteur de l'exploration de la NASA dans le syst\u00e8me solaire externe. L\u00e0 o\u00f9 des mondes oc\u00e9aniques - comme Europa, la lune de Jupiter - ont le potentiel d'accueillir la vie. M\u00eame les protoplan\u00e8tes comme C\u00e9r\u00e8s peuvent expliquer comment l'eau est stock\u00e9e dans les \"seaux\" rocheux qui transportent l'eau \u00e0 travers le syst\u00e8me solaire.<\/p>","protected":false},"excerpt":{"rendered":"

Des chercheurs ont trouv\u00e9 des preuves de l'existence d'une masse d'eau liquide sur Mars. Un nouvel article intitul\u00e9 Radar evidence of subglacial liquid water on Mars a \u00e9t\u00e9 publi\u00e9 sur Science. L'article sugg\u00e8re que de l'eau liquide pourrait se trouver sous une couche de glace au p\u00f4le sud de Mars. \"L'eau est consid\u00e9r\u00e9e comme l'une des exigences fondamentales de la vie. [...]<\/p>","protected":false},"author":11,"featured_media":8032,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"image","meta":[],"categories":[959,28],"tags":[247,51,246,249,248,554,71,250],"yoast_head":"\nWater on Mars: What you need to know - and see - Mind the Graph Blog<\/title>\n<meta name=\"description\" content=\"The discovery of water on Mars is especially amazing because there are underground lakes like this near Earth\u2019s poles, mainly in Greenland and Antarctica.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mindthegraph.com\/blog\/fr\/nasa-eau-sur-mars\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Water on Mars: What you need to know - and see - Mind the Graph Blog\" \/>\n<meta property=\"og:description\" content=\"The discovery of water on Mars is especially amazing because there are underground lakes like this near Earth\u2019s poles, mainly in Greenland and Antarctica.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mindthegraph.com\/blog\/fr\/nasa-eau-sur-mars\/\" \/>\n<meta property=\"og:site_name\" content=\"Mind the Graph Blog\" \/>\n<meta property=\"article:published_time\" content=\"2018-07-31T15:20:35+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-10-18T11:10:27+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2018\/07\/ghf.png\" \/>\n\t<meta property=\"og:image:width\" content=\"632\" \/>\n\t<meta property=\"og:image:height\" content=\"474\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Fabiola Soares\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Fabiola Soares\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Water on Mars: What you need to know - and see - Mind the Graph Blog","description":"The discovery of water on Mars is especially amazing because there are underground lakes like this near Earth\u2019s poles, mainly in Greenland and Antarctica.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/mindthegraph.com\/blog\/fr\/nasa-eau-sur-mars\/","og_locale":"fr_FR","og_type":"article","og_title":"Water on Mars: What you need to know - and see - Mind the Graph Blog","og_description":"The discovery of water on Mars is especially amazing because there are underground lakes like this near Earth\u2019s poles, mainly in Greenland and Antarctica.","og_url":"https:\/\/mindthegraph.com\/blog\/fr\/nasa-eau-sur-mars\/","og_site_name":"Mind the Graph Blog","article_published_time":"2018-07-31T15:20:35+00:00","article_modified_time":"2022-10-18T11:10:27+00:00","og_image":[{"width":632,"height":474,"url":"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2018\/07\/ghf.png","type":"image\/png"}],"author":"Fabiola Soares","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"Fabiola Soares","Dur\u00e9e de lecture estim\u00e9e":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/mindthegraph.com\/blog\/nasa-water-on-mars\/","url":"https:\/\/mindthegraph.com\/blog\/nasa-water-on-mars\/","name":"Water on Mars: What you need to know - and see - Mind the Graph Blog","isPartOf":{"@id":"https:\/\/mindthegraph.com\/blog\/#website"},"datePublished":"2018-07-31T15:20:35+00:00","dateModified":"2022-10-18T11:10:27+00:00","author":{"@id":"https:\/\/mindthegraph.com\/blog\/#\/schema\/person\/5592c012d89648325be9b0f3c3f91132"},"description":"The discovery of water on Mars is especially amazing because there are underground lakes like this near Earth\u2019s poles, mainly in Greenland and Antarctica.","breadcrumb":{"@id":"https:\/\/mindthegraph.com\/blog\/nasa-water-on-mars\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/mindthegraph.com\/blog\/nasa-water-on-mars\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/mindthegraph.com\/blog\/nasa-water-on-mars\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/mindthegraph.com\/blog\/"},{"@type":"ListItem","position":2,"name":"Water on Mars: What you need to know – and see"}]},{"@type":"WebSite","@id":"https:\/\/mindthegraph.com\/blog\/#website","url":"https:\/\/mindthegraph.com\/blog\/","name":"Mind the Graph Blog","description":"Your science can be beautiful!","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/mindthegraph.com\/blog\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"fr-FR"},{"@type":"Person","@id":"https:\/\/mindthegraph.com\/blog\/#\/schema\/person\/5592c012d89648325be9b0f3c3f91132","name":"Fabiola Soares","image":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/mindthegraph.com\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/7dca2c6a766aff1db898cc74c18284d8?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/7dca2c6a766aff1db898cc74c18284d8?s=96&d=mm&r=g","caption":"Fabiola Soares"},"url":"https:\/\/mindthegraph.com\/blog\/fr\/author\/fabiola\/"}]}},"_links":{"self":[{"href":"https:\/\/mindthegraph.com\/blog\/fr\/wp-json\/wp\/v2\/posts\/8017"}],"collection":[{"href":"https:\/\/mindthegraph.com\/blog\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mindthegraph.com\/blog\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/fr\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/fr\/wp-json\/wp\/v2\/comments?post=8017"}],"version-history":[{"count":13,"href":"https:\/\/mindthegraph.com\/blog\/fr\/wp-json\/wp\/v2\/posts\/8017\/revisions"}],"predecessor-version":[{"id":23434,"href":"https:\/\/mindthegraph.com\/blog\/fr\/wp-json\/wp\/v2\/posts\/8017\/revisions\/23434"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/fr\/wp-json\/wp\/v2\/media\/8032"}],"wp:attachment":[{"href":"https:\/\/mindthegraph.com\/blog\/fr\/wp-json\/wp\/v2\/media?parent=8017"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/fr\/wp-json\/wp\/v2\/categories?post=8017"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/fr\/wp-json\/wp\/v2\/tags?post=8017"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}