{"id":988,"date":"2021-05-15T13:30:10","date_gmt":"2021-05-15T13:30:10","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/frankel\/?p=988"},"modified":"2021-05-15T13:30:10","modified_gmt":"2021-05-15T13:30:10","slug":"rover-chinois-sur-mars","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/frankel\/2021\/05\/15\/rover-chinois-sur-mars\/","title":{"rendered":"Rover chinois sur Mars"},"content":{"rendered":"\r\n

La Chine est devenue la seconde nation, apr\u00e8s les Etats-Unis, \u00e0 poser une sonde en \u00e9tat de marche sur la plan\u00e8te rouge : le 14 mai 2021, la plate-forme d\u2019atterrissage de la mission Tianwen-1 a touch\u00e9 le sol en douceur au sud d\u2019Utopia Planitia, le vieux bassin d\u2019impact des hautes latitudes martiennes \u2013 bassin ou s\u2019\u00e9tait d\u2019ailleurs pos\u00e9, mais plus au nord, l\u2019une des deux premi\u00e8res sondes am\u00e9ricaines Viking, en 1976.<\/p>\r\n

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Carte des sites d’atterrissage des sondes martiennes : Tianwen-1 est indiqu\u00e9 en magenta \u00e0 droite, dans le bassin d’Utopia Planitia.<\/figcaption><\/figure>\r\n


La sonde Tianwen-1, lanc\u00e9e le 23 juillet 2020, s\u2019est d\u2019abord mise en orbite de Mars le 10 mars 2021. Elle a pass\u00e9 deux mois \u00e0 \u00e9tudier les conditions atmosph\u00e9riques au-dessus du site d\u2019atterrissage. L\u2019ESA a d\u2019ailleurs contribu\u00e9 \u00e0 la mission en communiquant \u00e0 la Chine des images haute r\u00e9solution et des donn\u00e9es spectroscopiques du site vis\u00e9, collect\u00e9es par l\u2019orbiteur europ\u00e9en Mars Express.<\/p>\r\n

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Le bus Tianwen-1 en orbite martienne (CNSA)<\/figcaption><\/figure>\r\n


Au terme des deux mois, le module de descente s\u2019est d\u00e9tach\u00e9 du bus orbital, et apr\u00e8s une plong\u00e9e de neuf minutes \u00e0 travers l\u2019atmosoph\u00e8re, y compris un moment de vol stationnaire lors de la derni\u00e8re phase d\u2019approche, a touch\u00e9 le sol sans encombre. Dans les jours \u00e0 venir, sa charge utile \u2013 le rover Zhurong \u2013 descendra par une rampe et entreprendra une mission de reconnaissance scientifique avec cam\u00e9ra st\u00e9r\u00e9oscopique et cam\u00e9ra multispectrale ; un spectrom\u00e8tre laser infrarouge ; et un radar qui sondera le sous-sol jusqu\u2019\u00e0 10 m de profondeur, \u00e0 l\u2019instar de celui de Perseverance. Le rover, aliment\u00e9 par panneaux solaires, a une masse de 240 kg, l\u00e9g\u00e8rement sup\u00e9rieure \u00e0 celle des rovers am\u00e9ricains Spirit et Opportunity (185 kg) du d\u00e9but des ann\u00e9es 2000.<\/p>\r\n

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Vue d’artiste du rover Zhorong au sol. (CNSA)<\/figcaption><\/figure>\r\n","protected":false},"excerpt":{"rendered":"

La Chine est devenue la seconde nation, apr\u00e8s les Etats-Unis, \u00e0 poser une sonde en \u00e9tat de marche sur la plan\u00e8te rouge : le 14 mai 2021, la plate-forme d\u2019atterrissage de la mission Tianwen-1 a touch\u00e9 le sol en douceur au sud d\u2019Utopia Planitia, le vieux bassin d\u2019impact des hautes latitudes martiennes \u2013 bassin ou … Continuer la lecture de Rover chinois sur Mars<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":6,"featured_media":993,"comment_status":"open","ping_status":"open","sticky":true,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[13,4],"tags":[],"class_list":["post-988","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","category-sciences"],"yoast_head":"\nRover chinois sur Mars - Carnets de bord d\u2019un martien, le blog de Charles FRANKEL, g\u00e9ologue<\/title>\n<meta name=\"description\" content=\"Le rover chinois Zhurong, de la mission Tianwen-1, s'est pos\u00e9 sur Mars le 14 mai 2021 dans le bassin Utopia\" \/>\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\/frankel\/2021\/05\/15\/rover-chinois-sur-mars\/\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Charles Frankel\" \/>\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\/frankel\/2021\/05\/15\/rover-chinois-sur-mars\/\",\"url\":\"https:\/\/blogs.futura-sciences.com\/frankel\/2021\/05\/15\/rover-chinois-sur-mars\/\",\"name\":\"Rover chinois sur Mars - Carnets de bord d\u2019un martien, le blog de Charles FRANKEL, g\u00e9ologue\",\"isPartOf\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/2021\/05\/15\/rover-chinois-sur-mars\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/2021\/05\/15\/rover-chinois-sur-mars\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2021\/05\/Zhurong.jpg\",\"datePublished\":\"2021-05-15T13:30:10+00:00\",\"dateModified\":\"2021-05-15T13:30:10+00:00\",\"author\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/#\/schema\/person\/c6bf521c6d19bf22fb19fb2b3d6fcf63\"},\"description\":\"Le rover chinois Zhurong, de la mission Tianwen-1, s'est pos\u00e9 sur Mars le 14 mai 2021 dans le bassin Utopia\",\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/blogs.futura-sciences.com\/frankel\/2021\/05\/15\/rover-chinois-sur-mars\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/2021\/05\/15\/rover-chinois-sur-mars\/#primaryimage\",\"url\":\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2021\/05\/Zhurong.jpg\",\"contentUrl\":\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2021\/05\/Zhurong.jpg\",\"width\":1200,\"height\":630,\"caption\":\"Vue d'artiste du rover Zhorong au sol. 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