{"id":850,"date":"2009-02-20T08:59:00","date_gmt":"2009-02-20T07:59:00","guid":{"rendered":"https:\/\/kids.esa.int\/student_experiments_lift_off_with_rexus_bexus\/"},"modified":"2026-10-08T00:32:58","modified_gmt":"2026-10-07T22:32:58","slug":"student_experiments_lift_off_with_rexus_bexus","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fr\/student_experiments_lift_off_with_rexus_bexus\/","title":{"rendered":"Des exp\u00e9riences d\u2019\u00e9tudiants d\u00e9collent avec REXUS\/BEXUS"},"content":{"rendered":"
\n

De nombreux jeunes con\u00e7oivent des exp\u00e9riences g\u00e9niales qu\u2019ils aimeraient envoyer dans l\u2019espace, mais faire voler des exp\u00e9riences sur un satellite ou la Station spatiale internationale est souvent trop co\u00fbteux pour les universit\u00e9s et les \u00e9tablissements scolaires. Tous ne savent cependant pas qu\u2019il existe des solutions plus simples et meilleur march\u00e9. Ainsi, le Bureau \u00c9ducation de l\u2019ESA propose depuis 2007 des vols \u00e0 bord de petites fus\u00e9es-sondes et de ballons volant \u00e0 haute altitude. Ces deux programmes sont connus, respectivement, sous les noms de REXUS (Rocket-borne Experiments for University Students) et de BEXUS (Balloon-borne Experiments for University Students).<\/p>\n<\/div>\n

REXUS est une fus\u00e9e mono-\u00e9tage non guid\u00e9e \u00e0 propulsion \u00e0 poudre, en mesure d\u2019emporter des exp\u00e9riences d\u2019un poids de 30 kg jusqu'\u00e0 une distance de 100 km au-dessus de la Terre. Le vol dure 6 minutes et, \u00e0 mi-course, une section de charge utile contenant les exp\u00e9riences se s\u00e9pare du corps principal. Ce module redescend sur Terre prot\u00e9g\u00e9 par un bouclier thermique. Pendant la phase finale de la mission, des parachutes ralentissent la descente en vue de l\u2019atterrissage.<\/p>\n

BEXUS est un \u00e9norme ballon qui mesure 14 m de large lorsqu\u2019il est rempli d\u2019h\u00e9lium. Il peut soulever jusqu\u2019\u00e0 100 kg \u00e0 une hauteur de 35 km et rester en vol pendant 5 heures. Le conteneur de l\u2019exp\u00e9rience, que l\u2019on appelle une gondole, se d\u00e9tache du ballon et est r\u00e9cup\u00e9r\u00e9 gr\u00e2ce \u00e0 un syst\u00e8me de parachutes. La charge utile est, en g\u00e9n\u00e9ral, ramen\u00e9e sur le site de lancement un \u00e0 deux jours apr\u00e8s le d\u00e9collage.<\/p>\n

Les missions REXUS et BEXUS sont lanc\u00e9es de la base de Kiruna au Nord de la Su\u00e8de. Les divers vols propos\u00e9s chaque ann\u00e9e constituent pour les \u00e9tudiants une occasion pr\u00e9cieuse de concevoir et de r\u00e9aliser des exp\u00e9riences qui s\u2019envoleront aux confins de l\u2019espace. L\u2019objectif de cette initiative est d\u2019inciter nombre de ces \u00e9tudiants \u00e0 travailler ensuite dans l\u2019industrie spatiale europ\u00e9enne.<\/p>","protected":false},"excerpt":{"rendered":"

Many young people have great ideas about experiments they\u2019d like to send into space. Unfortunately, flying experiments on a satellite or the International Space Station is often too expensive for […]<\/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\/2009\/02\/bexus2\/17872077-2-eng-GB\/BEXUS.jpg","esa_banner_description":"BEXUS","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2009\/02\/BEXUS2","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":[10,41,40],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-850","post","type-post","status-publish","format-standard","hentry","category-learn","category-rockets-technology","category-technology"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/850","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=850"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/850\/revisions"}],"predecessor-version":[{"id":1993,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/850\/revisions\/1993"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/media?parent=850"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/categories?post=850"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/tags?post=850"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/panel?post=850"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/language?post=850"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/age?post=850"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/duration?post=850"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/resource_type?post=850"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/audience?post=850"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/wf_post_folders?post=850"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}