{"id":1948,"date":"2015-02-27T06:05:23","date_gmt":"2015-02-27T06:05:23","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=1948"},"modified":"2015-03-01T10:20:06","modified_gmt":"2015-03-01T10:20:06","slug":"les-etonnants-nuages-geants-de-la-planete-mars","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/02\/27\/les-etonnants-nuages-geants-de-la-planete-mars\/","title":{"rendered":"Les \u00e9tonnants nuages g\u00e9ants de la plan\u00e8te Mars"},"content":{"rendered":"

La plan\u00e8te Mars <\/a>a toujours fascin\u00e9 les hommes tant elle leur rappelle la Terre, avec ses saisons, ses calottes polaires<\/a> et sa rotation en un peu plus de 24 heures. Les humains ont report\u00e9 tous leurs fantasmes sur la quatri\u00e8me plan\u00e8te du Syst\u00e8me solaire\u00a0: ils ont cru y voir des canaux artificiels \u00e0 la fin du dix-neuvi\u00e8me si\u00e8cle puis ils l’ont peupl\u00e9e de cr\u00e9atures hostiles pendant les d\u00e9cennies suivantes, de terribles martiens ou petits hommes verts qui n’h\u00e9sitaient pas \u00e0 venir nous an\u00e9antir.<\/p>\n

\"mars1\"<\/a><\/p>\n

Encore aujourd’hui certains interpr\u00e8tent de fa\u00e7on fantaisiste les images envoy\u00e9es par les rovers comme Opportunity, qui aurait m\u00eame photographi\u00e9 un cercueil sur Mars<\/a>\u00a0!<\/p>\n

Oublions ce folklore et reconnaissons cependant que la Plan\u00e8te rouge n’a pas encore livr\u00e9 tous ses secrets, malgr\u00e9 l’armada de sondes et de robots qui l’auscultent depuis les d\u00e9buts de la conqu\u00eate de l’espace et les nombreux t\u00e9lescopes <\/a>terrestres qui la pointent en permanence. C’est \u00e0 ces derniers que l’on doit la d\u00e9tection d’\u00e9tranges nuages g\u00e9ants.<\/p>\n

Comme le rapporte un article r\u00e9cent publi\u00e9 par la revue Nature<\/a>, tout a commenc\u00e9 en 2012 lorsque des astronomes<\/a> amateurs ont photographi\u00e9 une immense temp\u00eate, ph\u00e9nom\u00e8ne assez courant sur la plan\u00e8te Mars<\/a>. Mais c’est la hauteur de ces nuages qui a stup\u00e9fait tout le monde\u00a0: entre 200 et 250 km d’altitude, l\u00e0 o\u00f9 l’atmosph\u00e8re martienne est beaucoup trop t\u00e9nue pour que se forment des nuages. En fouillant dans les archives du t\u00e9lescope spatial Hubble<\/a> les scientifiques ont retrouv\u00e9 trace d’autres apparitions de nuages aussi \u00e9lev\u00e9s dont personne ne peut actuellement expliquer l’existence.<\/p>\n

Les chercheurs esp\u00e8rent que les r\u00e9cents orbiteurs Mangalyaan et Maven <\/a>pourront contribuer \u00e0 r\u00e9soudre cette nouvelle \u00e9nigme martienne. En attendant je vous invite \u00e0 suivre l’actualit\u00e9 de la Plan\u00e8te rouge sur le blog du g\u00e9ologue Charles Frankel, carnets de bord d’un martien<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

La plan\u00e8te Mars a toujours fascin\u00e9 les hommes tant elle leur rappelle la Terre, avec ses saisons, ses calottes polaires et sa rotation en un peu plus de 24 heures. Les humains ont report\u00e9 tous leurs fantasmes sur la quatri\u00e8me plan\u00e8te du Syst\u00e8me solaire\u00a0: ils ont cru y voir des canaux artificiels \u00e0 la fin … Continuer la lecture de Les \u00e9tonnants nuages g\u00e9ants de la plan\u00e8te Mars<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":8,"featured_media":1950,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[509],"tags":[125,855,856,116,857,155,776,534,115,96,544,545],"class_list":["post-1948","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","tag-atmosphere","tag-calotte-polaire","tag-mangalyaan","tag-mars","tag-maven","tag-nuage","tag-opportunity","tag-orbiteur","tag-planete-rouge","tag-telescope","tag-telescope-spatial-hubble","tag-tempete"],"yoast_head":"\nLes \u00e9tonnants nuages g\u00e9ants de la plan\u00e8te Mars<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/02\/27\/les-etonnants-nuages-geants-de-la-planete-mars\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Les \u00e9tonnants nuages g\u00e9ants de la plan\u00e8te Mars\" \/>\n<meta property=\"og:description\" content=\"La plan\u00e8te Mars a toujours fascin\u00e9 les hommes tant elle leur rappelle la Terre, avec ses saisons, ses calottes polaires et sa rotation en un peu plus de 24 heures. Les humains ont report\u00e9 tous leurs fantasmes sur la quatri\u00e8me plan\u00e8te du Syst\u00e8me solaire\u00a0: ils ont cru y voir des canaux artificiels \u00e0 la fin … Continuer la lecture de Les \u00e9tonnants nuages g\u00e9ants de la plan\u00e8te Mars →\" \/>\n<meta property=\"og:url\" content=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/02\/27\/les-etonnants-nuages-geants-de-la-planete-mars\/\" \/>\n<meta property=\"og:site_name\" content=\"CIELMANIA : le blog de Jean-Baptiste FELDMANN, photographe du ciel\" \/>\n<meta property=\"article:published_time\" content=\"2015-02-27T06:05:23+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2015-03-01T10:20:06+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/02\/mars1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"935\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Jean-Baptiste FELDMANN\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jean-Baptiste FELDMANN\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/02\/27\/les-etonnants-nuages-geants-de-la-planete-mars\/\",\"url\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/02\/27\/les-etonnants-nuages-geants-de-la-planete-mars\/\",\"name\":\"Les \u00e9tonnants nuages g\u00e9ants de la plan\u00e8te Mars\",\"isPartOf\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/02\/27\/les-etonnants-nuages-geants-de-la-planete-mars\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/02\/27\/les-etonnants-nuages-geants-de-la-planete-mars\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/02\/mars1.jpg\",\"datePublished\":\"2015-02-27T06:05:23+00:00\",\"dateModified\":\"2015-03-01T10:20:06+00:00\",\"author\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#\/schema\/person\/62b391b709c307783237b759b62731ea\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/02\/27\/les-etonnants-nuages-geants-de-la-planete-mars\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/02\/27\/les-etonnants-nuages-geants-de-la-planete-mars\/#primaryimage\",\"url\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/02\/mars1.jpg\",\"contentUrl\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/02\/mars1.jpg\",\"width\":1200,\"height\":935},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#website\",\"url\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/\",\"name\":\"CIELMANIA : le blog de Jean-Baptiste FELDMANN, photographe du ciel\",\"description\":\""J'ai en moi un besoin terrible. 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