{"id":7602,"date":"2021-06-13T13:24:22","date_gmt":"2021-06-13T13:24:22","guid":{"rendered":"https:\/\/www.africa-press.net\/tchad\/?p=7602"},"modified":"2021-06-13T16:41:52","modified_gmt":"2021-06-13T16:41:52","slug":"lagence-spatiale-europeenne-veut-connecter-la-lune-a-la-terre","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/lagence-spatiale-europeenne-veut-connecter-la-lune-a-la-terre","title":{"rendered":"L\u2019Agence spatiale europ\u00e9enne veut connecter la Lune \u00e0 la Terre !"},"content":{"rendered":"

Africa-Press<\/a> – Tchad<\/a>. <\/strong><\/span>L\u2019ESA pr\u00e9sente un projet de constellation de satellites en orbite autour de la Lune, baptis\u00e9 Moonlight. Deux consortiums vont \u00e9tudier sa faisabilit\u00e9.<\/p>\n

C\u2019est un projet ambitieux port\u00e9 par la volont\u00e9 de faire de l\u2019Europe un acteur principal de la nouvelle conqu\u00eate lunaire. L\u2019Agence spatiale europ\u00e9enne ESA envisage de lancer, \u00e0 l\u2019horizon 2028, une constellation de trois \u00e0 cinq satellites en orbite autour de la Lune. De quoi doter le satellite naturel de la Terre d\u2019un v\u00e9ritable service de t\u00e9l\u00e9communications et aussi de navigation inspir\u00e9 du GPS europ\u00e9en Galileo. Alors que plus d\u2019une vingtaine de missions lunaires, dont le programme am\u00e9ricain Art\u00e9mis, sont en pr\u00e9paration, ce syst\u00e8me satellitaire baptis\u00e9 Moonlight permettrait d\u2019all\u00e9ger le co\u00fbt des futures missions europ\u00e9ennes. Et de celles des autres nations, qui pourraient aussi l\u2019utiliser moyennant finance. Eles n\u2019auraient plus besoin d\u2019embarquer leur propre syst\u00e8me de navigation et de communication, \u00e0 la fois complexes et co\u00fbteux.<\/p>\n

Quant au panel de services que Moonlight pourrait rendre, il est bien plus large que ce que l\u2019on pourrait imaginer\u2026 D\u2019abord, il permettrait bien s\u00fbr aux astronautes de communiquer entre eux, avec la future station en orbite lunaire et \u00e9galement avec la Terre, tout en restant connect\u00e9s \u00e0 Internet durant leur s\u00e9jour. Ensuite il augmenterait tr\u00e8s sensiblement la pr\u00e9cision des atterrissages sur la Lune et permettrait de piloter des engins \u00e0 sa surface, \u00e0 distance depuis la Terre. Autant d\u2019atouts ind\u00e9niables, surtout dans la perspective de l\u2019\u00e9tablissement d\u2019une base lunaire habit\u00e9e.<\/p>\n

Enfin, cette infrastructure durable aurait \u00e9galement l\u2019avantage de nous permettre de communiquer avec la face cach\u00e9e de notre satellite. Celle qui, tourn\u00e9e vers le grand large, pourrait constituer une base arri\u00e8re pour pousser plus avant l\u2019exploration spatiale. Une base arri\u00e8re sur laquelle les scientifiques r\u00eavent de construire des t\u00e9lescopes \u00ab terrestres \u00bb affranchis des perturbations li\u00e9es \u00e0 l\u2019atmosph\u00e8re de notre plan\u00e8te.<\/p>\n

Objectif Lune<\/b><\/p>\n

\u00c0 ce stade, l\u2019ESA a choisi de missionner deux consortiums d\u2019industriels qui devront \u00e9tudier la faisabilit\u00e9 de ce projet pour un budget d\u2019environ 500 millions d\u2019euros. Le premier est men\u00e9 par le britannique SSTL (Surrey Satellite Technology Limited), sp\u00e9cialis\u00e9 dans les petits satellites, et comprend notamment Airbus et l\u2019agence spatiale britannique. Quant au second, il est pilot\u00e9 par Telespazio (d\u00e9tenu par Leonardo avec Thales), notamment \u00e9paul\u00e9 par Thales Alenia Space (d\u00e9tenu par Thales avec Leonardo) et l\u2019agence spatiale italienne.<\/p>\n

Deux \u00e9quipes qui auront grosso modo dix-huit mois pour rendre leur copie, l\u2019Agence spatiale europ\u00e9enne souhaitant proposer de financer l\u2019op\u00e9ration lors d\u2019une conf\u00e9rence minist\u00e9rielle de ses \u00c9tats membres pr\u00e9vue fin 2022. Une s\u00e9ance qui sera fort charg\u00e9e puisque l\u2019agence spatiale europ\u00e9enne envisage \u00e9galement d\u2019y soumettre un projet d\u2019atterrisseur lunaire \u00ab cargo \u00bb capable d\u2019emporter plus d\u2019une tonne et demie de mat\u00e9riel sur la Lune, soit plus de cinq fois la capacit\u00e9 du nouveau vaisseau lunaire am\u00e9ricain HLS (Human Landing System).<\/p>\n","protected":false},"excerpt":{"rendered":"

Africa-Press – Tchad. L\u2019ESA pr\u00e9sente un projet de constellation de satellites en orbite autour de la Lune, baptis\u00e9 Moonlight. Deux consortiums vont \u00e9tudier sa faisabilit\u00e9. C\u2019est un projet ambitieux port\u00e9 par la volont\u00e9 de faire de l\u2019Europe un acteur principal de la nouvelle conqu\u00eate lunaire. L\u2019Agence spatiale europ\u00e9enne ESA envisage de lancer, \u00e0 l\u2019horizon 2028, […]<\/p>\n","protected":false},"author":82,"featured_media":7601,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,11,10],"tags":[37,292,879,878,29],"class_list":["post-7602","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-homepage-french","category-toutes-les-actualites","tag-africa-press","tag-africa-press-tchad","tag-europeenne","tag-spatiale","tag-tchad"],"yoast_head":"\nL\u2019Agence spatiale europ\u00e9enne veut connecter la Lune \u00e0 la Terre ! - tchad<\/title>\n<meta name=\"description\" content=\"L\u2019ESA pr\u00e9sente un projet de constellation de satellites en orbite autour de la Lune, baptis\u00e9 Moonlight. 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