{"id":997,"date":"2021-06-20T08:06:13","date_gmt":"2021-06-20T08:06:13","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/frankel\/?p=997"},"modified":"2021-10-08T13:28:19","modified_gmt":"2021-10-08T13:28:19","slug":"perseverance-cap-au-sud","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/frankel\/2021\/06\/20\/perseverance-cap-au-sud\/","title":{"rendered":"Perseverance : cap au sud"},"content":{"rendered":"\r\n

Le rover Perseverance entame son premier parcours scientifique dans l’ar\u00e8ne du crat\u00e8re Jezero, qui l’occupera jusqu’\u00e0 la fin de l’ann\u00e9e au moins. Contrairement aux expectatives, ce sera vers le sud, en s’\u00e9loignant du delta qui est la cible principale de la mission. Il s’agit d’\u00e9tudier le fond de l’ancien lac qui occupait le crat\u00e8re, avant de remonter vers le delta qui s’y est superpos\u00e9.<\/p>\r\n

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En pointill\u00e9, depuis le site d’atterrissage Octavia Butler, le trajet qu’effectuera Perseverance vers le sud (vers “Raised Ridges”), puis apr\u00e8s retour \u00e0 son point de d\u00e9part, vers le nord (“Three Forks”)<\/figcaption><\/figure>\r\n


Ce terrain, appel\u00e9 CF-FR (Crater Floor Fractured Rough) par les responsables de mission, semble assez ferme et peu pi\u00e9geux pour le d\u00e9placement du rover, celui-ci longeant son contact avec une autre unit\u00e9 plus vari\u00e9e qui comprend des dunes de sable et des cr\u00eates rocheuses qui en \u00e9mergent, baptis\u00e9e pour sa part S\u00e9itah, qui signifie “parmi les sables” en langue navajo \u2013 langue retenue pour nommer les roches et paysages de la mission, en hommage \u00e0 la tribu am\u00e9rindienne et \u00e0 l’un de ses ing\u00e9nieurs qui travaille sur la mission.<\/p>\r\n

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Vue de la formation h\u00e9t\u00e9roclite “S\u00e9itah”, avec ses dunes de sable, depuis une dizaine de m\u00e8tres d’altitude gr\u00e2ce \u00e0 l’h\u00e9licopt\u00e8re Ingenuity.<\/figcaption><\/figure>\r\n

Une fois cette reconnaissance vers le sud effectu\u00e9e, Perseverance reviendra \u00e0 son point de d\u00e9part, et comme second acte de son programme d’exploration, roulera vers le nord, puis vers l’ouest pour longer le front du delta.<\/p>\r\n","protected":false},"excerpt":{"rendered":"

Le rover Perseverance entame son premier parcours scientifique dans l’ar\u00e8ne du crat\u00e8re Jezero, qui l’occupera jusqu’\u00e0 la fin de l’ann\u00e9e au moins. Contrairement aux expectatives, ce sera vers le sud, en s’\u00e9loignant du delta qui est la cible principale de la mission. Il s’agit d’\u00e9tudier le fond de l’ancien lac qui occupait le crat\u00e8re, avant … Continuer la lecture de Perseverance : cap au sud<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[13,4],"tags":[],"class_list":["post-997","post","type-post","status-publish","format-standard","hentry","category-actualites","category-sciences"],"yoast_head":"\nPerseverance : cap au sud - Carnets de bord d\u2019un martien, le blog de Charles FRANKEL, g\u00e9ologue<\/title>\n<meta name=\"description\" content=\"Le rover martien Perseverance commencera par mettre cap au sud dans le crat\u00e8re Jezero pour \u00e9tudier le fond de l'ancien lac.\" \/>\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\/06\/20\/perseverance-cap-au-sud\/\" \/>\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=\"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\/frankel\/2021\/06\/20\/perseverance-cap-au-sud\/\",\"url\":\"https:\/\/blogs.futura-sciences.com\/frankel\/2021\/06\/20\/perseverance-cap-au-sud\/\",\"name\":\"Perseverance : cap au sud - 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\/06\/20\/perseverance-cap-au-sud\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/2021\/06\/20\/perseverance-cap-au-sud\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2021\/06\/Perseverance-traverse.jpg\",\"datePublished\":\"2021-06-20T08:06:13+00:00\",\"dateModified\":\"2021-10-08T13:28:19+00:00\",\"author\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/#\/schema\/person\/c6bf521c6d19bf22fb19fb2b3d6fcf63\"},\"description\":\"Le rover martien Perseverance commencera par mettre cap au sud dans le crat\u00e8re Jezero pour \u00e9tudier le fond de l'ancien lac.\",\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/blogs.futura-sciences.com\/frankel\/2021\/06\/20\/perseverance-cap-au-sud\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/2021\/06\/20\/perseverance-cap-au-sud\/#primaryimage\",\"url\":\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2021\/06\/Perseverance-traverse.jpg\",\"contentUrl\":\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2021\/06\/Perseverance-traverse.jpg\",\"width\":2121,\"height\":1402,\"caption\":\"En pointill\u00e9, depuis le site d'atterrissage Octavia Butler, le trajet qu'effectuera Perseverance vers le sud (vers \\\"Raised Ridges\\\"), puis apr\u00e8s retour \u00e0 son point de d\u00e9part, vers le nord (\\\"Three Forks\\\")\"},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/#website\",\"url\":\"https:\/\/blogs.futura-sciences.com\/frankel\/\",\"name\":\"Carnets de bord d\u2019un martien, le blog de Charles FRANKEL, g\u00e9ologue\",\"description\":\"La science ? 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