{"id":804,"date":"2004-12-03T10:54:00","date_gmt":"2004-12-03T09:54:00","guid":{"rendered":"https:\/\/kids.esa.int\/useful_space_galileo\/"},"modified":"2026-10-08T00:32:27","modified_gmt":"2026-10-07T22:32:27","slug":"useful_space_galileo","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fr\/useful_space_galileo\/","title":{"rendered":"Galil\u00e9e"},"content":{"rendered":"<div class=\"lede\">\n<p>Le premier satellite d'essai du syst\u00e8me de navigation europ\u00e9en Galileo a \u00e9t\u00e9 lanc\u00e9 en d\u00e9cembre 2005, suivi d'un deuxi\u00e8me en 2008. Une fois op\u00e9rationnel, le syst\u00e8me comptera 30 satellites en orbite \u00e0 pr\u00e8s de 24 000 km au-dessus de la Terre. Cela permettra de garantir qu'il y ait toujours au moins quatre satellites au-dessus de l'horizon.<\/p>\n<\/div>\n<p>Un petit r\u00e9cepteur captera les signaux transmis par les satellites Galileo et par n\u2019importe quelle station au sol avoisinante. Il pourra calculer ta position exacte, ainsi que ta vitesse, o\u00f9 que tu te trouves dans le monde.<\/p>\n<p>Galileo ne va pas remplacer les syst\u00e8mes qui existent d\u00e9j\u00e0. Il va au contraire travailler avec eux. Mais contrairement aux syst\u00e8mes am\u00e9ricain et russe, Galileo ne sera pas contr\u00f4l\u00e9 par l\u2019arm\u00e9e. Ceci garantira la possibilit\u00e9 de toujours aider les voyageurs \u00e0 trouver leur chemin.<\/p>\n<ul>\n<li>\n<p>Am\u00e9lioration de l'\u00e9coulement du trafic<\/p>\n<\/li>\n<li>\n<p>Fourniture d'informations sur l'emplacement de n'importe quelle voiture, camion, navire ou avion<\/p>\n<\/li>\n<li>\n<p>Aide aux voyageurs ou explorateurs pour trouver leur chemin quand ils sont loin de tout<\/p>\n<\/li>\n<li>\n<p>Am\u00e9lioration de la s\u00e9curit\u00e9 de l'atterrissage des avions, en particulier dans le brouillard ou par plafond nuageux bas<\/p>\n<\/li>\n<li>\n<p>Aide aux \u00e9quipes de recherche et de sauvetage<\/p>\n<\/li>\n<li>\n<p>Guidage des non-voyants<\/p>\n<\/li>\n<li>\n<p>Suivi des cyclistes en temps r\u00e9el<\/p>\n<\/li>\n<\/ul>\n<p>Contrairement au GPS, les utilisateurs pourront toujours capter le signal Galileo ; il s'agit donc d'un syst\u00e8me v\u00e9ritablement fiable.<\/p>","protected":false},"excerpt":{"rendered":"<p>The first test satellite in Europe&#8217;s Galileo navigation system was launched in December 2005, followed by a second one in 2008. When operational there will be 30 satellites circling nearly [&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\/2000\/10\/galileo_constellation2\/17866415-3-eng-GB\/Galileo_constellation.jpg","esa_banner_description":"Galileo constellation","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2000\/10\/Galileo_constellation2","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":[10,54,40],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-804","post","type-post","status-publish","format-standard","hentry","category-learn","category-space-technologies-on-earth","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\/804","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=804"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/804\/revisions"}],"predecessor-version":[{"id":1947,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/804\/revisions\/1947"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/media?parent=804"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/categories?post=804"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/tags?post=804"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/panel?post=804"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/language?post=804"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/age?post=804"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/duration?post=804"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/resource_type?post=804"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/audience?post=804"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/wf_post_folders?post=804"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}