{"id":380,"date":"2018-06-07T13:20:00","date_gmt":"2018-06-07T11:20:00","guid":{"rendered":"https:\/\/kids.esa.int\/mars_express_takes_amazing_photo_of_the_red_planet\/"},"modified":"2026-10-08T00:27:30","modified_gmt":"2026-10-07T22:27:30","slug":"mars_express_takes_amazing_photo_of_the_red_planet","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fr\/mars_express_takes_amazing_photo_of_the_red_planet\/","title":{"rendered":"Mars Express prend d\u2019incroyables photos de la Plan\u00e8te rouge!"},"content":{"rendered":"<div class=\"lede\">\n<p>Il y a quinze ans, la mission Mars Express de l\u2019ESA \u00e9tait lanc\u00e9e pour \u00e9tudier la Plan\u00e8te rouge ! Pour c\u00e9l\u00e9brer son anniversaire, une magnifique s\u00e9rie de photographies vient d\u2019\u00eatre d\u00e9voil\u00e9e. Ces fabuleuses images nous pr\u00e9sentent Tharsis, une r\u00e9gion de Mars qui figure parmi les plus int\u00e9ressantes de toute sa surface. Tharsis abrite des volcans gigantesques, des canyons tortueux et des terrains accident\u00e9s.<\/p>\n<\/div>\n<p>Voyez-vous cette l\u00e9g\u00e8re brume bleue en haut de l\u2019image ? Il s\u2019agit de l\u2019horizon sup\u00e9rieur de la plan\u00e8te. Les taches sombres en haut \u00e0 gauche font partie de Valles Marineris, le plus grand canyon du syst\u00e8me solaire. Un peu plus bas, on aper\u00e7oit des fissures \u00e0 la surface, appel\u00e9es Noctis Labyrinthus. Et ces deux cercles sombres ? Il s'agit en r\u00e9alit\u00e9 de volcans \u00e9teints appel\u00e9s Ascraeus Mons et Pavonis Mons. Chacun d'entre eux mesure plus de 20 km de haut ! Au bas de l'image se trouve la calotte polaire nord de Mars. (La photo est orient\u00e9e de telle sorte que le nord se trouve en bas \u00e0 gauche).<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"2000\" data-credit=\"NASA\/Viking, FU Berlin\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/06\/Location_map_of_the_Tharsis_region_on_Mars2\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2018\/06\/location_map_of_the_tharsis_region_on_mars2\/17910122-2-eng-GB\/Location_map_of_the_Tharsis_region_on_Mars.jpg\" alt=\"Location map of the Tharsis region on Mars\"><figcaption>Carte de localisation de la r\u00e9gion de Tharsis sur Mars<\/figcaption><\/figure>\n<p>Tharsis couvre environ un quart de la surface martienne et se situe entre les hautes terres du sud et les basses terres du nord de Mars. La majeure partie de cette r\u00e9gion se situe entre 2 et 10 km d\u2019altitude, ce qui est plus \u00e9lev\u00e9 que la plupart des autres r\u00e9gions de Mars. Elle s\u2019est probablement form\u00e9e il y a tr\u00e8s longtemps, lorsque de la roche en fusion, appel\u00e9e magma, s\u2019est accumul\u00e9e sous la surface et a jailli, cr\u00e9ant ainsi les reliefs que nous observons aujourd\u2019hui.<\/p>\n<p>La sonde spatiale Mars Express a accompli de nombreuses choses depuis 15 ans. Elle a \u00e9tudi\u00e9 d'immenses volcans, des canyons complexes, des calottes glaciaires et d\u2019anciens crat\u00e8res d\u2019impact. Elle a aussi cartographi\u00e9 l\u2019hydrologie, le volcanisme et les min\u00e9raux de la Plan\u00e8te rouge. Les donn\u00e9es transmises par Mars Express nous ont par ailleurs permis de r\u00e9aliser des milliers d'images 3D de la surface martienne!<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"6000\" data-credit=\"Spacecraft image credit: ESA\/ATG medialab; Mars: ESA\/DLR\/FU Berlin, CC BY-SA 3.0 IGO\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/06\/Mars_Express\" data-licence=\"CC BY-SA 3.0 IGO or ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2018\/06\/mars_express\/17898421-2-eng-GB\/Mars_Express.jpg\" alt=\"Mars Express\"><figcaption>Mars Express<\/figcaption><\/figure>\n<p>Toutes les d\u00e9couvertes r\u00e9alis\u00e9es par Mars Express nous ont permis de mieux comprendre la Plan\u00e8te Rouge. Nous savons d\u00e9sormais qu\u2019elle \u00e9tait autrefois plus chaude et plus humide, des conditions qui auraient pu permettre \u00e0 la vie de s\u2019\u00e9panouir. Les futures missions vers Mars s'appuieront sur les travaux de Mars Express. Le rover ExoMars de l'ESA, dont le lancement est pr\u00e9vu en 2020, partira \u00e0 la recherche de traces de vie ancienne.<\/p>\n<p>M\u00eame si Mars Express accuse d\u00e9sormais un certain \u00e2ge, des mises \u00e0 jour logicielles lui ont r\u00e9cemment donn\u00e9 une seconde jeunesse. La sonde spatiale pourrait ainsi continuer de fonctionner jusqu'au milieu des ann\u00e9es 2020. De nouvelles d\u00e9couvertes auront peut-\u00eatre encore lieu!<\/p>\n<p><b>Fait int\u00e9ressant :<\/b> Mars Express a m\u00eame \u00e9tudi\u00e9 les deux lunes de la Plan\u00e8te Rouge, Phobos et Deimos !<\/p>","protected":false},"excerpt":{"rendered":"<p>15 years ago, ESA\u2019s Mars Express mission was launched to investigate the Red Planet! To celebrate this anniversary, an incredible new photo of Mars has been released. The stunning picture [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2018\/06\/mars_from_horizon_to_horizon2\/17875481-2-eng-GB\/Mars_from_horizon_to_horizon.jpg","esa_banner_description":"Mars from horizon to horizon","esa_banner_credit":"ESA\/DLR\/FU Berlin, CC BY-SA 3.0 IGO","esa_banner_licence":"CC BY-SA 3.0 IGO or ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/06\/Mars_from_horizon_to_horizon2","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[26],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-380","post","type-post","status-publish","format-standard","hentry","category-news"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/380","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/comments?post=380"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/380\/revisions"}],"predecessor-version":[{"id":4427,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/380\/revisions\/4427"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/media?parent=380"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/categories?post=380"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/tags?post=380"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/panel?post=380"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/language?post=380"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/age?post=380"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/duration?post=380"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/resource_type?post=380"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/audience?post=380"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/wf_post_folders?post=380"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}