{"id":480,"date":"2016-08-11T09:24:00","date_gmt":"2016-08-11T07:24:00","guid":{"rendered":"https:\/\/kids.esa.int\/rosetta_mission_grand_finale_set_for_30_september\/"},"modified":"2026-10-08T00:28:42","modified_gmt":"2026-10-07T22:28:42","slug":"rosetta_mission_grand_finale_set_for_30_september","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fr\/rosetta_mission_grand_finale_set_for_30_september\/","title":{"rendered":"Le grand final de la mission Rosetta aura lieu le 30 septembre !"},"content":{"rendered":"<div class=\"lede\">\n<p>Le 30 septembre prochain, la mission Rosetta de l\u2019ESA conna\u00eetra un final spectaculaire. Rosetta entamera ce que l\u2019on appelle une \u00ab descente contr\u00f4l\u00e9e \u00bb, qui la rapprochera progressivement de la com\u00e8te 67P\/Churyumov-Gerasimenko avant qu\u2019elle ne s\u2019\u00e9crase \u00e0 sa surface !<\/p>\n<\/div>\n<p>La sonde spatiale Rosetta orbite autour de cette com\u00e8te depuis 2014. Plus tard cette ann\u00e9e-l\u00e0, Rosetta a d\u00e9ploy\u00e9 un petit atterrisseur appel\u00e9 Philae qui s\u2019est pos\u00e9 \u00e0 la surface de la com\u00e8te : c\u2019\u00e9tait un exploit remarquable !<\/p>\n<p>Rosetta est ensuite rest\u00e9e en orbite autour de la com\u00e8te, en collectant de pr\u00e9cieuses donn\u00e9es pour la communaut\u00e9 scientifique de la Terre. Rosetta et sa com\u00e8te se trouvent d\u00e9sormais aux confins de l\u2019espace, dans une zone aussi froide que recul\u00e9e o\u00f9 la lumi\u00e8re du Soleil est tr\u00e8s faible. C\u2019est une tr\u00e8s mauvaise nouvelle pour Rosetta car, \u00e0 une distance aussi \u00e9loign\u00e9e, ses panneaux solaires ne peuvent plus collecter assez de lumi\u00e8re pour la maintenir \u00e0 une temp\u00e9rature de fonctionnement suffisante.<\/p>\n<figure class=\"wp-block-image size-natural\" data-width=\"513\" data-credit=\"http:\/\/sci.esa.int\/where_is_rosetta\/\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2016\/08\/Where_will_Rosetta_be_on_30_September\" 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\/2016\/08\/where_will_rosetta_be_on_30_september\/17898838-2-eng-GB\/Where_will_Rosetta_be_on_30_September.jpg\" alt=\"Where will Rosetta be on 30 September?\"><figcaption>O\u00f9 se trouvera Rosetta le 30 septembre ?<\/figcaption><\/figure>\n<p>Cela fait douze ans que Rosetta travaille dans l\u2019espace, et elle a pass\u00e9 les deux derni\u00e8res ann\u00e9es \u00e0 proximit\u00e9 d\u2019une com\u00e8te poussi\u00e9reuse. Pour une sonde spatiale, cela repr\u00e9sente une dur\u00e9e consid\u00e9rable, et ses diff\u00e9rents composants vont probablement cesser de fonctionner tr\u00e8s prochainement.<\/p>\n<p>En sachant qu\u2019il allait rapidement devenir tr\u00e8s difficile de maintenir Rosetta en \u00e9tat de marche, la d\u00e9cision a \u00e9t\u00e9 prise de lui offrir une fin spectaculaire ! La descente contr\u00f4l\u00e9e de Rosetta sur la com\u00e8te lui permettra d\u2019en prendre des photos rapproch\u00e9es avant qu\u2019elle ne percute sa surface, mais surtout de nous transmettre des donn\u00e9es et des images d\u2019une valeur inestimable qui donneront du travail aux scientifiques pendant de nombreuses ann\u00e9es.<\/p>\n<p>Qui sait ce que Rosetta d\u00e9couvrira pendant sa descente finale ? Nous le saurons tr\u00e8s prochainement !<\/p>\n<p><b>Fait int\u00e9ressant :<\/b> L'ESA a mis en ligne un site web o\u00f9 vous pouvez d\u00e9couvrir o\u00f9 se trouve actuellement la sonde Rosetta dans notre syst\u00e8me solaire ! D\u00e9couvrez-le ici : <a href=\"http:\/\/sci.esa.int\/where_is_rosetta\" target=\"_blank\" rel=\"noopener\">http:\/\/sci.esa.int\/where_is_rosetta<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>On 30 September ESA\u2019s Rosetta mission will come to a spectacular finish. It will begin what is known as a \u201ccontrolled descent\u201d, bringing it closer and closer to the comet, [&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\/2016\/08\/rosetta_approaching_comet\/17880402-2-eng-GB\/Rosetta_approaching_comet.jpg","esa_banner_description":"Rosetta approaching comet","esa_banner_credit":"Spacecraft: ESA\/ATG medialab; Comet image: ESA\/Rosetta\/NavCam \u2013 CC BY-SA IGO 3.0","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2016\/08\/Rosetta_approaching_comet","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-480","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\/480","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=480"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/480\/revisions"}],"predecessor-version":[{"id":4508,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/480\/revisions\/4508"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/media?parent=480"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/categories?post=480"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/tags?post=480"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/panel?post=480"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/language?post=480"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/age?post=480"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/duration?post=480"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/resource_type?post=480"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/audience?post=480"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/wf_post_folders?post=480"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}