{"id":834,"date":"2004-12-02T15:32:00","date_gmt":"2004-12-02T14:32:00","guid":{"rendered":"https:\/\/kids.esa.int\/building_a_spacecraft\/"},"modified":"2026-10-08T00:32:48","modified_gmt":"2026-10-07T22:32:48","slug":"building_a_spacecraft","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fr\/building_a_spacecraft\/","title":{"rendered":"Construction d\u2019un vaisseau spatial"},"content":{"rendered":"<div class=\"lede\">\n<p>Les vaisseaux spatiaux ont des formes et dimensions tr\u00e8s diff\u00e9rentes. Ils ont aussi des t\u00e2ches diff\u00e9rentes. Contrairement aux voitures, il est rare de trouver plus de dix satellites du m\u00eame mod\u00e8le. La plupart sont uniques, chacun \u00e9tant assembl\u00e9 soigneusement \u00e0 la main. Malgr\u00e9 cela, ils sont tous con\u00e7us et fabriqu\u00e9s de la m\u00eame fa\u00e7on.<\/p>\n<\/div>\n<p>Un satellite est constitu\u00e9 de deux parties principales : une plate-forme (ou bus) et une charge utile (instruments ou exp\u00e9riences).<\/p>\n<p>La plate-forme est la structure m\u00e9tallique de base. Elle doit \u00eatre robuste et l\u00e9g\u00e8re. Elle comporte un ch\u00e2ssis autour duquel tout le reste est construit et divers syst\u00e8mes \u2013 propulseurs, moteur principal, r\u00e9servoirs de carburant et alimentation. La charge utile comporte les \u00e9quipements de communication avec le sol ainsi que les cam\u00e9ras et autres instruments scientifiques.<\/p>\n<p>Les pi\u00e8ces d\u2019un satellite sont fabriqu\u00e9es \u00e0 des endroits diff\u00e9rents. Ils sont tous envoy\u00e9s \u00e0 un centre unique qui les assemble et les essaye dans des salles blanches sp\u00e9ciales. C\u2019est seulement ensuite que le vaisseau spatial peut \u00eatre envoy\u00e9 au centre de lancement.<\/p>\n<p>Comme il n'y a pas de garages dans l'espace, de nombreux satellites emportent leurs propres \u2018 pi\u00e8ces de rechange \u2019. En cas de panne, les contr\u00f4leurs au sol peuvent ordonner au satellite de basculer sur une pi\u00e8ce de rechange.<\/p>","protected":false},"excerpt":{"rendered":"<p>Spacecraft come in many shapes and sizes. They perform many different jobs. Unlike cars, it is rare to find more than 10 satellites that are the same. Most of them [&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\/2001\/11\/building_blocks2\/17864824-3-eng-GB\/building_blocks.jpg","esa_banner_description":"","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2001\/11\/building_blocks2","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":[10,44,40],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-834","post","type-post","status-publish","format-standard","hentry","category-learn","category-spacecraft","category-technology","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/834","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=834"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/834\/revisions"}],"predecessor-version":[{"id":1977,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/834\/revisions\/1977"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/media?parent=834"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/categories?post=834"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/tags?post=834"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/panel?post=834"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/language?post=834"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/age?post=834"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/duration?post=834"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/resource_type?post=834"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/audience?post=834"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/wf_post_folders?post=834"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}