{"id":47,"date":"2025-07-11T08:31:12","date_gmt":"2025-07-11T06:31:12","guid":{"rendered":"https:\/\/kids.esa.int\/the_closed_loop_system_-_recycling_air_and_water\/"},"modified":"2026-10-08T00:23:30","modified_gmt":"2026-10-07T22:23:30","slug":"the_closed_loop_system_-_recycling_air_and_water","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fr\/the_closed_loop_system_-_recycling_air_and_water\/","title":{"rendered":"Le syst\u00e8me en circuit ferm\u00e9 \u2013 Recyclage de l'air et de l'eau"},"content":{"rendered":"<p>Vous \u00eates-vous d\u00e9j\u00e0 demand\u00e9 comment la Terre pouvait nous offrir tout ce dont nous avons besoin pour vivre ? Prenons un exemple : nous expirons du dioxyde de carbone, mais les plantes et les micro-organismes, comme les algues dans l\u2019oc\u00e9an, l\u2019absorbent et le transforment en oxyg\u00e8ne que nous pouvons \u00e0 nouveau respirer. Mais comment les astronautes recyclent-ils l\u2019air et l\u2019eau \u00e0 bord de la Station spatiale internationale (ISS) ?<\/p>\n<p>\u00c0 bord de la Station spatiale internationale, Paxi se demande pourquoi il s'y sent si en s\u00e9curit\u00e9 et \u00e0 l'aise. Heureusement, l'astronaute de la NASA Stephen Bowen est l\u00e0 pour lui expliquer le \u201c syst\u00e8me en boucle ferm\u00e9e \u201d, qui permet aux astronautes de vivre plus longtemps dans l'espace et m\u00eame de faire des \u00e9conomies !<\/p>\n<p>Pendant longtemps, les astronautes tiraient leur oxyg\u00e8ne de l\u2019eau (qui est compos\u00e9e d\u2019hydrog\u00e8ne et d\u2019oxyg\u00e8ne) envoy\u00e9e depuis la Terre. Mais d\u00e9sormais, gr\u00e2ce au \u201c syst\u00e8me en circuit ferm\u00e9 \u201d, ils peuvent \u00e9conomiser chaque ann\u00e9e suffisamment d\u2019eau pour remplir une grande baignoire \u2014 et \u00e7a fait beaucoup d\u2019eau !<\/p>\n<p>Rejoignez Paxi et Stephen pour d\u00e9couvrir comment les astronautes vivent et respirent \u00e0 bord de l'ISS !\u00a0<\/p>\n<figure class=\"wp-block-embed is-type-video\"><iframe width=\"728\" height=\"410\" src=\"https:\/\/www.youtube.com\/embed\/tmqQMUB9mdI?si=aeMmc0dZTZ-I6L4g\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/figure>","protected":false},"excerpt":{"rendered":"<p>Have you ever thought about how the Earth has everything we need to live? One example is how we breathe out carbon dioxide but\u00a0plants and tiny things like algae in [&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\/2025\/07\/gif_-_paxi_on_the_iss_-_closed_loop_system\/26793150-2-eng-GB\/GIF_-_Paxi_on_the_ISS_-_Closed_Loop_System1.gif","esa_banner_description":"GIF - Paxi on the ISS - Closed Loop System","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2025\/07\/GIF_-_Paxi_on_the_ISS_-_Closed_Loop_System","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":[15,18,17],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-47","post","type-post","status-publish","format-standard","hentry","category-multimedia","category-paxi-on-the-iss","category-videos"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/47","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=47"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/47\/revisions"}],"predecessor-version":[{"id":1190,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/47\/revisions\/1190"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/media?parent=47"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/categories?post=47"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/tags?post=47"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/panel?post=47"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/language?post=47"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/age?post=47"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/duration?post=47"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/resource_type?post=47"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/audience?post=47"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/wf_post_folders?post=47"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}