{"id":113704,"date":"2026-05-20T21:13:10","date_gmt":"2026-05-20T21:13:10","guid":{"rendered":"https:\/\/www.europesays.com\/be-fr\/113704\/"},"modified":"2026-05-20T21:13:10","modified_gmt":"2026-05-20T21:13:10","slug":"mission-conjointe-esa-chine-cartographie-le-champ-magnetique-protecteur-de-la-terre","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/be-fr\/113704\/","title":{"rendered":"Mission conjointe ESA-Chine cartographie le champ magn\u00e9tique protecteur de la Terre"},"content":{"rendered":"<p>\n         Publi\u00e9 le<br \/>\n            19\/05\/2026 &#8211; 16:42 UTC+2\n            <\/p>\n<p>Une mission euro-chinoise qui va radiographier l\u2019atmosph\u00e8re magn\u00e9tique de la Terre est d\u00e9sormais dans l\u2019espace.<\/p>\n<p>          <img decoding=\"async\" class=\"c-ad__placeholder__logo\" src=\"https:\/\/static.euronews.com\/website\/images\/logos\/logo-euronews-stacked-outlined-72x72-grey-9.svg\" width=\"72\" height=\"72\" alt=\"\" loading=\"lazy\"\/><br \/>\n          PUBLICIT\u00c9<\/p>\n<p>          <img decoding=\"async\" class=\"c-ad__placeholder__logo\" src=\"https:\/\/static.euronews.com\/website\/images\/logos\/logo-euronews-stacked-outlined-72x72-grey-9.svg\" width=\"72\" height=\"72\" alt=\"\" loading=\"lazy\"\/><br \/>\n          PUBLICIT\u00c9<\/p>\n<p>La mission Solar Wind Magnetosphere Ionosphere Link Explorer (SMILE) de l\u2019Agence spatiale europ\u00e9enne (ESA)<a href=\"https:\/\/www.esa.int\/Science%255FExploration\/Space%255FScience\/Smile\/Smile%255Ffactsheet2\" target=\"_blank\" rel=\"noreferrer nofollow noopener\"> mission (source en anglais)<\/a> a envoy\u00e9 mardi depuis son site de lancement en Guyane fran\u00e7aise une sonde spatiale de 3 m\u00e8tres de haut, \u00e9quip\u00e9e de capteurs et d\u2019antennes, en orbite.<\/p>\n<p>La mission conjointe, lanc\u00e9e en partenariat avec l\u2019Acad\u00e9mie chinoise des sciences (CAS), suivra la magn\u00e9tosph\u00e8re terrestre, qui prot\u00e8ge la plan\u00e8te des flux, en apparence doux, de particules charg\u00e9es en provenance du Soleil, ce que l\u2019on appelle le vent solaire.<\/p>\n<p>Selon l\u2019ESA, la mission SMILE aidera les scientifiques \u00e0 combler une lacune dans la compr\u00e9hension du syst\u00e8me solaire et \u00e0 mieux prot\u00e9ger \u00e0 l\u2019avenir les technologies et les astronautes.<\/p>\n<p>\u00ab Sans la magn\u00e9tosph\u00e8re, la vie ne pourrait pas survivre sur la plan\u00e8te Terre \u00bb, a d\u00e9clar\u00e9 l\u2019ESA \u00e0 propos de la mission.<\/p>\n<p>Pendant la mission, la sonde mesurera comment, o\u00f9 et quand les vents solaires interagissent avec notre plan\u00e8te.<\/p>\n<p>Pendant sa mission, la sonde montera jusqu\u2019\u00e0 121 000 kilom\u00e8tres au-dessus du p\u00f4le Nord, soit environ un tiers du trajet vers la Lune. Elle recueillera \u00e9galement jusqu\u2019\u00e0 45 heures par orbite d\u2019observations continues des rayons X mous et de la lumi\u00e8re ultraviolette.<\/p>\n<p>La sonde SMILE a envoy\u00e9 son premier signal aux scientifiques seulement deux heures apr\u00e8s le lancement et a d\u00e9ploy\u00e9 ses panneaux solaires, ce qui signifie qu\u2019elle peut capter la lumi\u00e8re du Soleil pour alimenter ses syst\u00e8mes et ses instruments scientifiques.<\/p>\n","protected":false},"excerpt":{"rendered":"Publi\u00e9 le 19\/05\/2026 &#8211; 16:42 UTC+2 Une mission euro-chinoise qui va radiographier l\u2019atmosph\u00e8re magn\u00e9tique de la Terre est&hellip;\n","protected":false},"author":2,"featured_media":113705,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_share_on_mastodon":"0"},"categories":[70],"tags":[5053,12,13,18,17,41062,5054,73,71,75,72,76,74],"class_list":["post-113704","post","type-post","status-publish","format-standard","has-post-thumbnail","category-sciences-et-technologies","tag-agence-spatiale-europeenne","tag-be","tag-be-fr","tag-belgique","tag-belgium","tag-mission-spatiale","tag-recherche-spatiale","tag-science","tag-science-and-technology","tag-sciences","tag-sciences-et-technologies","tag-technologies","tag-technology"],"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@be_fr\/116608972127558285","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/posts\/113704","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/comments?post=113704"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/posts\/113704\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/media\/113705"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/media?parent=113704"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/categories?post=113704"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/tags?post=113704"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}