{"id":851,"date":"2006-08-23T09:22:00","date_gmt":"2006-08-23T07:22:00","guid":{"rendered":"https:\/\/kids.esa.int\/useful_space_did_you_know_that\/"},"modified":"2026-10-08T00:32:59","modified_gmt":"2026-10-07T22:32:59","slug":"useful_space_did_you_know_that","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fr\/useful_space_did_you_know_that\/","title":{"rendered":"Saviez-vous que\u2026"},"content":{"rendered":"<div class=\"lede\">\n<p>La Lune a \u00e9t\u00e9 le premier satellite de t\u00e9l\u00e9communications. En 1951, les techniciens de l'arm\u00e9e am\u00e9ricaine ont utilis\u00e9 la Lune pour faire rebondir les signaux. Ils ont recommenc\u00e9 en 1955, quand une temp\u00eate solaire a interrompu les liaisons satellite.<\/p>\n<\/div>\n<p>Deux des premiers satellites artificiels de t\u00e9l\u00e9communications \u00e9taient de gros ballons brillants qui refl\u00e9taient les signaux radio. Il s'agissait d'Echo 1 et Echo 2.<\/p>","protected":false},"excerpt":{"rendered":"<p>The first communications satellite was the Moon. US Army engineers bounced signals off the Moon in 1951. They did so again in 1955, during a communications blackout caused by a [&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\/11\/telescopic_view_of_the_whole_moon_seen_from_earth2\/17865823-3-eng-GB\/Telescopic_view_of_the_whole_Moon_seen_from_Earth.jpg","esa_banner_description":"Telescopic view of the whole Moon seen from Earth","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2000\/11\/Telescopic_view_of_the_whole_Moon_seen_from_Earth2","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-851","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\/851","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=851"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/851\/revisions"}],"predecessor-version":[{"id":1994,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/851\/revisions\/1994"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/media?parent=851"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/categories?post=851"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/tags?post=851"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/panel?post=851"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/language?post=851"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/age?post=851"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/duration?post=851"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/resource_type?post=851"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/audience?post=851"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/wf_post_folders?post=851"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}