{"id":603,"date":"2014-01-22T08:00:00","date_gmt":"2014-01-22T07:00:00","guid":{"rendered":"https:\/\/kids.esa.int\/rosetta_phones_home\/"},"modified":"2026-10-08T00:30:09","modified_gmt":"2026-10-07T22:30:09","slug":"rosetta_phones_home","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fr\/rosetta_phones_home\/","title":{"rendered":"Rosetta \u00ab t\u00e9l\u00e9phone maison \u00bb"},"content":{"rendered":"<div class=\"lede\">\n<p>L\u2019un des plus importants chapitres de l\u2019odyss\u00e9e de la sonde spatiale Rosetta vient de conna\u00eetre un \u00e9pilogue heureux. Plong\u00e9e dans le sommeil dans l\u2019espace lointain depuis 31 mois, la sonde vient de reprendre contact avec l\u2019ESA.<\/p>\n<\/div>\n<p>Le 20 janvier 2014, le r\u00e9veil interne pr\u00e9programm\u00e9 de Rosetta l\u2019a tir\u00e9e de son sommeil. Apr\u00e8s avoir r\u00e9activ\u00e9 ses principaux instruments de navigation, Rosetta a envoy\u00e9 un signal pour faire savoir aux responsables de la mission qu\u2019elle avait surv\u00e9cu \u00e0 son \u00e9pop\u00e9e dans l\u2019espace lointain.<\/p>\n<p>Rosetta s\u2019appr\u00eate \u00e0 chasser la com\u00e8te 67P\/Churyumov-Gerasimenko. Ce sera la premi\u00e8re mission spatiale \u00e0 r\u00e9aliser un rendez-vous avec une com\u00e8te, \u00e0 tenter de poser un atterrisseur \u00e0 sa surface puis \u00e0 la suivre lorsqu\u2019elle s\u2019approchera du Soleil.<\/p>\n<p>Depuis son lancement en 2004, Rosetta a survol\u00e9 trois fois la Terre et une fois Mars afin de b\u00e9n\u00e9ficier d\u2019une assistance gravitationnelle lui permettant d\u2019atteindre la com\u00e8te 67P\/Churyumov-Gerasimenko. Sur son trajet, elle s\u2019est \u00e9galement approch\u00e9e des ast\u00e9ro\u00efdes Steins et Lutetia.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"840\" data-credit=\"ESA\u2013J. Huart\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2014\/01\/Rosetta_and_Philae_at_comet\" 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\/2014\/01\/rosetta_and_philae_at_comet\/17904979-2-eng-GB\/Rosetta_and_Philae_at_comet.jpg\" alt=\"Rosetta and Philae at comet\"><figcaption>Rosetta et Philae pr\u00e8s de la com\u00e8te<\/figcaption><\/figure>\n<p>Rosetta, qui fonctionne uniquement \u00e0 l\u2019\u00e9nergie solaire, a \u00e9t\u00e9 plac\u00e9e dans un sommeil profond en juin 2011. Elle se dirigeait alors au-del\u00e0 de l\u2019orbite de Jupiter, \u00e0 pr\u00e8s de 800 millions de kilom\u00e8tres du Soleil qui alimentait jusque-l\u00e0 ses panneaux solaires.<\/p>\n<p>Les com\u00e8tes sont consid\u00e9r\u00e9es comme les constituants primitifs du Syst\u00e8me solaire. Elles ont tr\u00e8s probablement contribu\u00e9 \u00e0 la pr\u00e9sence de l\u2019eau sur Terre, et peut-\u00eatre m\u00eame au d\u00e9veloppement de la vie. Cependant, de nombreuses questions fondamentales sur ces objets c\u00e9lestes restent encore sans r\u00e9ponse. Gr\u00e2ce \u00e0 son \u00e9tude exhaustive de la com\u00e8te 67P\/Churyumov-Gerasimenko, Rosetta esp\u00e8re percer les secrets qu\u2019elle rec\u00e8le.<\/p>\n<p>Rosetta devrait nous transmettre les premi\u00e8res images de la com\u00e8te au mois de mai prochain, alors qu\u2019elle se trouvera encore \u00e0 2 millions de kilom\u00e8tres de sa cible. Fin mai, elle effectuera une importante man\u0153uvre d\u2019alignement sur cette derni\u00e8re en pr\u00e9vision de leur rendez-vous crucial qui devrait avoir lieu en ao\u00fbt.<\/p>\n<p>Une fois cet objectif atteint, Rosetta proc\u00e8dera pendant deux mois \u00e0 une cartographie minutieuse de la surface de la com\u00e8te, ainsi qu\u2019\u00e0 d\u2019importantes mesures de sa gravit\u00e9, de sa masse, de sa forme et de son atmosph\u00e8re gazeuse.<\/p>\n<p>Gr\u00e2ce aux donn\u00e9es ainsi r\u00e9colt\u00e9es, les scientifiques choisiront le site o\u00f9 se posera la sonde Philae, qui p\u00e8se 100 kg. L\u2019atterrissage, actuellement pr\u00e9vu pour le 11 novembre 2014, sera le premier jamais tent\u00e9 sur une com\u00e8te !<\/p>","protected":false},"excerpt":{"rendered":"<p>It was a fairy-tale ending to an important chapter in the story of the Rosetta space mission as ESA heard from its distant spacecraft for the first time in 31 [&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\/2014\/01\/rosetta_calls_home\/17887247-2-eng-GB\/Rosetta_calls_home.jpg","esa_banner_description":"Rosetta calls home","esa_banner_credit":"ESA - C.Carreau","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2014\/01\/Rosetta_calls_home","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":[46,10,11],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-603","post","type-post","status-publish","format-standard","hentry","category-comets-and-meteors","category-learn","category-our-universe"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/603","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=603"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/603\/revisions"}],"predecessor-version":[{"id":4574,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/603\/revisions\/4574"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/media?parent=603"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/categories?post=603"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/tags?post=603"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/panel?post=603"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/language?post=603"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/age?post=603"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/duration?post=603"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/resource_type?post=603"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/audience?post=603"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/wf_post_folders?post=603"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}