C\u2019est la fin d\u2019une mission ayant d\u00e9pass\u00e9 toutes les attentes : apr\u00e8s quasiment trois ans sur Mars, le petit h\u00e9licopt\u00e8re Ingenuity ne volera plus au-dessus de la plan\u00e8te rouge, \u00e0 cause d\u2019un probl\u00e8me survenu lors de son 72\u1d49 vol, a annonc\u00e9 la Nasa jeudi. \u201cCe que Ingenuity a accompli d\u00e9passe largement ce que nous pensions possible\u201d, a soulign\u00e9 dans une vid\u00e9o le patron de la Nasa, Bill Nelson. L\u2019h\u00e9licopt\u00e8re \u201ca ouvert la voie \u00e0 de futurs vols dans notre syst\u00e8me solaire\u201d.<\/p>\n\n\n\n
Ingenuity \u00e9tait devenu en 2021 le premier appareil motoris\u00e9 \u00e0 effectuer un vol sur une autre plan\u00e8te. Il a ainsi prouv\u00e9 qu\u2019il \u00e9tait possible de voler dans l\u2019air martien, d\u2019une densit\u00e9 \u00e9quivalente \u00e0 seulement 1\u2009% de celle de l\u2019atmosph\u00e8re terrestre.<\/p>\n\n\n\n
L\u2019h\u00e9licopt\u00e8re ne devait \u00e0 l\u2019origine d\u00e9coller que cinq fois, mais devant ses tr\u00e8s bonnes performances, la mission avait \u00e9t\u00e9 prolong\u00e9e \u2014 jusqu\u2019\u00e0 aujourd\u2019hui. Lors de son 72\u1d49 vol, la semaine derni\u00e8re, l\u2019h\u00e9licopt\u00e8re avait bien atteint une altitude de 12 m\u00e8tres, mais la communication s\u2019\u00e9tait brutalement interrompue peu avant son atterrissage. Elle avait finalement pu \u00eatre r\u00e9tablie le lendemain, mais les \u00e9quipes de la Nasa ont pu constater quelques jours plus tard des \u201cdommages\u201d sur une pale de rotor. \u201cNous \u00e9tudions la possibilit\u00e9 que la pale ait pu heurter le sol\u201d, a d\u00e9clar\u00e9 Bill Nelson.<\/p>\n\n\n\n
L\u2019h\u00e9licopt\u00e8re n\u2019est d\u00e9sormais \u201cplus capable de voler\u201d, a confirm\u00e9 la Nasa dans un communiqu\u00e9, en pr\u00e9cisant que les causes de l\u2019interruption de la communication \u00e9taient encore \u00e9tudi\u00e9es. Durant son 71\u1d49 vol, Ingenuity avait d\u00fb atterrir en urgence, a pr\u00e9cis\u00e9 l\u2019agence spatiale. Le 72\u1d49 \u00e9tait donc programm\u00e9 comme un vol court, permettant de mieux le localiser.<\/p>\n","protected":false},"excerpt":{"rendered":"
C\u2019est la fin d\u2019une mission ayant d\u00e9pass\u00e9 toutes les attentes : apr\u00e8s quasiment trois ans sur Mars, le petit h\u00e9licopt\u00e8re<\/p>\n","protected":false},"author":1,"featured_media":30342,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[46],"tags":[],"class_list":["post-30341","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technology"],"_links":{"self":[{"href":"https:\/\/dekkbi.com\/index.php?rest_route=\/wp\/v2\/posts\/30341","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dekkbi.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dekkbi.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dekkbi.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dekkbi.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=30341"}],"version-history":[{"count":2,"href":"https:\/\/dekkbi.com\/index.php?rest_route=\/wp\/v2\/posts\/30341\/revisions"}],"predecessor-version":[{"id":30345,"href":"https:\/\/dekkbi.com\/index.php?rest_route=\/wp\/v2\/posts\/30341\/revisions\/30345"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dekkbi.com\/index.php?rest_route=\/wp\/v2\/media\/30342"}],"wp:attachment":[{"href":"https:\/\/dekkbi.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=30341"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dekkbi.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=30341"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dekkbi.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=30341"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}