{"id":575,"date":"2014-05-22T09:44:00","date_gmt":"2014-05-22T07:44:00","guid":{"rendered":"https:\/\/kids.esa.int\/space_station_science_for_blue_dot\/"},"modified":"2026-10-08T00:29:49","modified_gmt":"2026-10-07T22:29:49","slug":"space_station_science_for_blue_dot","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fr\/space_station_science_for_blue_dot\/","title":{"rendered":"Le programme scientifique de Blue Dot sur l\u2019ISS"},"content":{"rendered":"<div class=\"lede\">\n<p>Le 28 mai prochain, l\u2019astronaute de l\u2019ESA Alexander Gerst d\u00e9collera pour la Station spatiale internationale (ISS) afin d\u2019y mener sa mission Blue Dot. Pendant son s\u00e9jour de six mois sur la Station, Alexander aura l'occasion de r\u00e9aliser une centaine d\u2019exp\u00e9riences scientifiques, incluant notamment l\u2019\u00e9tude de nouveaux mat\u00e9riaux et fluides, des exp\u00e9riences sur l\u2019adaptation du corps humain en microgravit\u00e9, des d\u00e9monstrations technologiques ainsi que d\u2019importantes recherches sur des cellules vivantes, le Soleil et l\u2019Univers.<\/p>\n<\/div>\n<p>Plusieurs de ces exp\u00e9riences reprendront des \u00e9tudes pr\u00e9c\u00e9demment men\u00e9es sur l'ISS, mais certaines d'entre elles seront enti\u00e8rement in\u00e9dites. La mission d\u2019Alexander, qui aura l'honneur d'\u00e9voluer pour la premi\u00e8re fois dans l\u2019espace, sera donc particuli\u00e8rement importante. L\u2019un des temps forts de Blue Dot sera l\u2019installation et la mise en service d\u2019un four sp\u00e9cial \u00e0 l\u00e9vitation \u00e9lectromagn\u00e9tique, qui sera prochainement livr\u00e9 sur l\u2019ISS par l\u2019ATV-5, le vaisseau ravitailleur de l\u2019ESA.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1024\" data-credit=\"NASA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2014\/05\/AMS-02\" 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\/2014\/05\/ams-02\/17909900-2-eng-GB\/AMS-02.jpg\" alt=\"\"><\/figure>\n<p>Ce four sera install\u00e9 \u00e0 bord de Columbus, le laboratoire spatial europ\u00e9en de l\u2019ISS. Le syst\u00e8me \u00e0 l\u00e9vitation \u00e9lectromagn\u00e9tique permettra de chauffer des m\u00e9taux \u00e0 2 100 \u00b0C puis de les refroidir rapidement. Alexander y ins\u00e8rera des cartouches de m\u00e9tal, puis le four \u00e0 microgravit\u00e9 ex\u00e9cutera automatiquement le processus de forgeage. Une cam\u00e9ra \u00e0 haute vitesse enregistrera cette proc\u00e9dure exceptionnelle. Les m\u00e9taux form\u00e9s sur l\u2019ISS pourraient contribuer \u00e0 cr\u00e9er un nouvel alliage l\u00e9ger pour les industries de l\u2019automobile et de l\u2019a\u00e9ronautique !<\/p>\n<p>Pour rester en forme, l\u2019\u00e9quipage de l\u2019ISS suit un programme quotidien d\u2019exercice physique, mais les douches sont un luxe que les astronautes ne peuvent s\u2019offrir. Pour faire leur toilette, ils doivent utiliser des lingettes. Malheureusement, dans l\u2019espace, les astronautes transpirent g\u00e9n\u00e9ralement plus que sur Terre. L\u2019exp\u00e9rience Spacetex visera \u00e0 tester deux nouveaux types de tissus afin d\u2019\u00e9valuer s\u2019ils peuvent absorber plus de sueur et, \u00e0 terme, rendre les s\u00e9ances d\u2019exercice physique des astronautes un peu plus agr\u00e9ables et hygi\u00e9niques.<\/p>\n<p>Les autres exp\u00e9riences d\u2019Alexander l\u2019am\u00e8neront \u00e9galement \u00e0 contr\u00f4ler le robot spatial Eurobot de l'ESA afin de recueillir de pr\u00e9cieuses images et donn\u00e9es. Par ailleurs, l\u2019astronaute allemand profitera de l\u2019une de ses sorties extrav\u00e9hiculaires pour installer plusieurs appareils scientifiques sur la coque externe de l\u2019ISS.<\/p>","protected":false},"excerpt":{"rendered":"<p>Alexander Gerst will be launched to the International Space Station on 28 May on his \u2018Blue Dot\u2019 mission. He will run about 100 experiments during his six month stay on [&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\/2014\/05\/alexander_gerst\/17884953-2-eng-GB\/Alexander_Gerst.jpg","esa_banner_description":"Alexander Gerst","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2014\/05\/Alexander_Gerst","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":[10,13,27],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-575","post","type-post","status-publish","format-standard","hentry","category-learn","category-life-in-space","category-space-stations"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/575","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=575"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/575\/revisions"}],"predecessor-version":[{"id":4556,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/575\/revisions\/4556"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/media?parent=575"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/categories?post=575"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/tags?post=575"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/panel?post=575"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/language?post=575"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/age?post=575"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/duration?post=575"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/resource_type?post=575"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/audience?post=575"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/wf_post_folders?post=575"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}