{"id":291427,"date":"2019-04-05T12:33:58","date_gmt":"2019-04-05T09:33:58","guid":{"rendered":"https:\/\/kinsta.unitedwithisrael.org\/?p=291427"},"modified":"2019-04-07T11:51:38","modified_gmt":"2019-04-07T08:51:38","slug":"le-vaisseau-israelien-beresheet-passe-avec-succes-sa-derniere-epreuve-avant-datteindre-la-lune","status":"publish","type":"post","link":"https:\/\/kinsta.unitedwithisrael.org\/fr\/le-vaisseau-israelien-beresheet-passe-avec-succes-sa-derniere-epreuve-avant-datteindre-la-lune\/","title":{"rendered":"Le vaisseau isra\u00e9lien Beresheet passe avec succ\u00e8s sa derni\u00e8re \u00e9preuve avant d’atteindre la Lune !"},"content":{"rendered":"

La premi\u00e8re sonde spatiale priv\u00e9e \u00e0 voyager sur la Lune a r\u00e9ussi le test le plus crucial de son histoire jeudi lorsqu’elle est tomb\u00e9e en orbite lunaire une semaine avant son atterrissage.<\/strong><\/em><\/p>\n

Par Associated Press<\/em><\/p>\n

Apr\u00e8s avoir parcouru plus de 5,5 millions de kilom\u00e8tres autour de la Terre et se rapprochant encore plus de la lune, le vaisseau spatial isra\u00e9lien Beresheet a finalement bascul\u00e9 dans l’orbite elliptique de la lune, lui permettant de rester sur la piste du touch\u00e9, le 11 avril.<\/p>\n

\u00ab\u00a0C’\u00e9tait un \u00e9v\u00e9nement marquant qui nous donne une v\u00e9ritable chance d’atteindre la lune<\/em>\u00ab\u00a0, a d\u00e9clar\u00e9 Yonatan Winetraub, co-fondateur de SpaceIL.
\nLe vaisseau, surnomm\u00e9 \u00ab\u00a0Beresheet\u00a0\u00bb,\u00a0 h\u00e9breu pour\u00a0\u00bb Gen\u00e8se<\/em> \u00ab\u00a0ou\u00a0\u00bb Au commencement<\/em> \u00ab\u00a0, est l\u2019un des plus petits engins spatiaux de l\u2019histoire \u00e0 avoir p\u00e9n\u00e9tr\u00e9 dans l\u2019orbite de la lune.
\nDu centre de contr\u00f4le \u00e0 Yehud, pr\u00e8s de Tel-Aviv, une flotte d’ing\u00e9nieurs a suivi la vitesse de l’engin spatial. Afin d’\u00eatre catapult\u00e9 loin de la Terre et de \u00ab\u00a0capter\u00a0\u00bb avec succ\u00e8s l’attraction gravitationnelle de la Lune, Beresheet a d\u00fb ralentir de 8500 km \/ h \u00e0 5300 km \/ h. Au bout de cinq minutes, Beresheet atteignit la vitesse parfaite et les ing\u00e9nieurs se mirent \u00e0 applaudir, se f\u00e9licitant mutuellement avec des c\u00e2lins et des poign\u00e9es de main. Un retard dans le ralentissement de la mission aurait mis un terme brutal \u00e0 la mission.<\/p>\n

\u00ab\u00a0Le co\u00fbt d’une erreur ici aurait \u00e9t\u00e9 infini\u00a0\u00bb<\/em>, a d\u00e9clar\u00e9 Opher Doron, directeur g\u00e9n\u00e9ral de la division spatiale chez Israel Aerospace Industries, qui a travaill\u00e9 avec SpaceIL sur le projet.
\n\u00ab\u00a0Nous aurions tourn\u00e9 dans l’espace vers une orbite solaire dans laquelle personne ne voudrait entrer<\/em>.\u00a0\u00bb D\u00e9sormais entra\u00een\u00e9 dans l’orbite lunaire, Beresheet tracera des boucles de plus en plus petites autour de la lune avant de tenter d’atterrir. \u00ab\u00a0Nous avons une grande chance d’avoir un atterrissage forc\u00e9 \u00ab\u00a0<\/em>, a d\u00e9clar\u00e9 Doron. \u00ab\u00a0C\u2019est tr\u00e8s dangereux et il est difficile de pr\u00e9dire que nous r\u00e9ussirons.<\/em>\u00a0\u00bb
\nMais, apr\u00e8s avoir relev\u00e9 le d\u00e9fi de jeudi, l\u2019\u00e9quipe \u00e9tait optimiste. Contrairement aux gigantesques roquettes puissantes de la NASA qui se dirigent directement vers la lune, le modeste engin de d\u00e9barquement \u00e0 quatre pattes , \u00e0 peine aussi gros qu’une machine \u00e0 laver, s’est embarqu\u00e9e sur une voie risqu\u00e9e et d\u00e9tourn\u00e9e. La mission de 100 millions de dollars ne pouvait se payer sa propre fus\u00e9e, aussi Beresheet a-t-il embarqu\u00e9 dans la fus\u00e9e SpaceX Falcon, lanc\u00e9e de Floride en f\u00e9vrier.
\nAu total, le satellite parcourra 6,5 \u200b\u200bmillions de kilom\u00e8tres, parmi les plus longs jamais parcourus vers la Lune. SpaceIL a d\u00e9but\u00e9 avec le concours Google Lunar X Prize, qui promettait 20 millions de dollars pour le premier engin robotique financ\u00e9 par le secteur priv\u00e9 \u00e0 le financer vers la lune. La comp\u00e9tition s\u2019est termin\u00e9e l\u2019ann\u00e9e derni\u00e8re sans vainqueur. Mais inspir\u00e9e par la pers\u00e9v\u00e9rance de SpaceIL, la Fondation XPrize a annonc\u00e9 la semaine derni\u00e8re qu\u2019elle offrirait \u00e0 l\u2019\u00e9quipe 1 million de dollars si Beresheet r\u00e9ussissait son atterrissage. Si tout se d\u00e9roule comme pr\u00e9vu, Beresheet atterrira dans une plaine de lave solidifi\u00e9e, connue sous le nom de Mer de s\u00e9r\u00e9nit\u00e9. Il passera quelques jours sur la surface de la lune, mesurant le champ magn\u00e9tique sur le site d’atterrissage, puis renvoyant des donn\u00e9es et des images.
\nUne mission r\u00e9ussie ferait d’Isra\u00ebl le quatri\u00e8me pays \u00e0 r\u00e9aliser un atterrissage sur la lune, apr\u00e8s la Russie, les \u00c9tats-Unis et la Chine. .SpaceIL esp\u00e8re que son exploit inspirera la prochaine g\u00e9n\u00e9ration d\u2019isra\u00e9liens \u00e0 \u00e9tudier la science et l\u2019ing\u00e9nierie. Winetraub a d\u00e9crit comment, au cours de la r\u00e9cente f\u00eate juive de Pourim, il avait vu de nombreux enfants d\u00e9guis\u00e9s en Beresheet et en astronautes.
\n\u00ab\u00a0C’est incroyable de voir l’excitation que nous avons d\u00e9j\u00e0 g\u00e9n\u00e9r\u00e9e\u00a0\u00bb<\/em>, a-t-il d\u00e9clar\u00e9. \u00ab\u00a0C’est ce qui va propulser notre pays vers l’avant.<\/em>\u00ab\u00a0<\/p>\n

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\"Donate<\/a><\/div><\/ad-shortcode><\/non-auwi>","protected":false},"excerpt":{"rendered":"

La premi\u00e8re sonde spatiale priv\u00e9e \u00e0 voyager sur la Lune a r\u00e9ussi le test le plus crucial de son histoire jeudi lorsqu’elle est tomb\u00e9e en orbite lunaire une semaine avant son atterrissage. Par Associated Press Apr\u00e8s avoir parcouru plus de 5,5 millions de kilom\u00e8tres autour de la Terre et se rapprochant encore plus de la… Read more »<\/a><\/p>\n","protected":false},"author":4242,"featured_media":287082,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[28418],"tags":[33753,28446,30854,28447,33754],"class_list":["post-291427","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites-israeliennes","tag-beresheet-fr","tag-espace","tag-lune","tag-satellite","tag-spaceil-fr"],"better_featured_image":{"id":287082,"alt_text":"Beresheet","caption":"Prime Minister Netanyahu with his wife Sarah on one side and philanthropist Morris Kahn on the other, watch the launch of the Beresheet spacecraft from the Yehud command center on February 22, 2019. 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