{"id":1282,"date":"2014-12-11T11:31:09","date_gmt":"2014-12-11T11:31:09","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=1282"},"modified":"2014-12-16T14:49:15","modified_gmt":"2014-12-16T14:49:15","slug":"image-fascinante-du-satellite-europe","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/12\/11\/image-fascinante-du-satellite-europe\/","title":{"rendered":"Une image fascinante du satellite Europe"},"content":{"rendered":"

Comme Io, Ganym\u00e8de et Callisto<\/a>, Europe est l’un des 4 satellites de Jupiter <\/a>d\u00e9couverts par le savant italien Galil\u00e9e en 1610 \u00e0 l’aide de sa lunette astronomique<\/a>.<\/p>\n

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

Ce satellite galil\u00e9en (le second apr\u00e8s Io en partant de la plan\u00e8te g\u00e9ante) est recouvert d’une couche de glace parcourue de longues fractures, sous laquelle se trouve sans doute un oc\u00e9an. Mais quelle source de chaleur peut donc permettre l’existence de cet oc\u00e9an souterrain ?<\/p>\n

La r\u00e9ponse se trouve dans les effets de mar\u00e9e. On conna\u00eet les effets de mar\u00e9e entre la Terre et la Lune<\/a>, on peut sans peine imaginer ceux produits sur Europe par la proximit\u00e9 de Jupiter, 20 000 fois plus massive que notre plan\u00e8te ! La chaleur d\u00e9gag\u00e9e par les d\u00e9formations d’Europe suffisent \u00e0 faire fondre la glace sous la cro\u00fbte gel\u00e9e.<\/p>\n

Les crevasses (ou linae<\/em>) qui strient cette cro\u00fbte sont le r\u00e9sultat d’importants mouvements tectoniques et d’un cryovolcanisme confirm\u00e9 par la d\u00e9couverte de geysers s’\u00e9chappant de cette banquise.<\/p>\n

L’image du satellite Europe que vient de pr\u00e9senter la NASA est une mosa\u00efque de multiples photographies r\u00e9alis\u00e9es par la sonde Galileo qui a explor\u00e9 Jupiter et ses lunes entre 1995 et 2003.<\/p>\n","protected":false},"excerpt":{"rendered":"

Comme Io, Ganym\u00e8de et Callisto, Europe est l’un des 4 satellites de Jupiter d\u00e9couverts par le savant italien Galil\u00e9e en 1610 \u00e0 l’aide de sa lunette astronomique. Ce satellite galil\u00e9en (le second apr\u00e8s Io en partant de la plan\u00e8te g\u00e9ante) est recouvert d’une couche de glace parcourue de longues fractures, sous laquelle se trouve sans … Continuer la lecture de Une image fascinante du satellite Europe<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":8,"featured_media":1283,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[509],"tags":[415,590,591,412,158,592,414,542,413,90,148,486,183],"class_list":["post-1282","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","tag-callisto","tag-crevasse","tag-cryovolcanisme","tag-europe","tag-galilee","tag-galileo","tag-ganymede","tag-glace","tag-io","tag-jupiter","tag-lunette-astronomique","tag-nasa","tag-ocean"],"yoast_head":"\nsatellite europe<\/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\/2014\/12\/11\/image-fascinante-du-satellite-europe\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"satellite europe\" \/>\n<meta property=\"og:description\" content=\"Comme Io, Ganym\u00e8de et Callisto, Europe est l’un des 4 satellites de Jupiter d\u00e9couverts par le savant italien Galil\u00e9e en 1610 \u00e0 l’aide de sa lunette astronomique. Ce satellite galil\u00e9en (le second apr\u00e8s Io en partant de la plan\u00e8te g\u00e9ante) est recouvert d’une couche de glace parcourue de longues fractures, sous laquelle se trouve sans … Continuer la lecture de Une image fascinante du satellite Europe →\" \/>\n<meta property=\"og:url\" content=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/12\/11\/image-fascinante-du-satellite-europe\/\" \/>\n<meta property=\"og:site_name\" content=\"CIELMANIA : le blog de Jean-Baptiste FELDMANN, photographe du ciel\" \/>\n<meta property=\"article:published_time\" content=\"2014-12-11T11:31:09+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2014-12-16T14:49:15+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/europe.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"887\" \/>\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=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/12\/11\/image-fascinante-du-satellite-europe\/\",\"url\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/12\/11\/image-fascinante-du-satellite-europe\/\",\"name\":\"satellite europe\",\"isPartOf\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/12\/11\/image-fascinante-du-satellite-europe\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/12\/11\/image-fascinante-du-satellite-europe\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/europe.jpg\",\"datePublished\":\"2014-12-11T11:31:09+00:00\",\"dateModified\":\"2014-12-16T14:49:15+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\/2014\/12\/11\/image-fascinante-du-satellite-europe\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/12\/11\/image-fascinante-du-satellite-europe\/#primaryimage\",\"url\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/europe.jpg\",\"contentUrl\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/europe.jpg\",\"width\":1200,\"height\":887},{\"@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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