{"id":163131,"date":"2020-01-12T21:49:33","date_gmt":"2020-01-12T20:49:33","guid":{"rendered":"https:\/\/www.realites.com.tn\/?p=163131"},"modified":"2020-01-12T21:49:33","modified_gmt":"2020-01-12T20:49:33","slug":"a-17-ans-il-decouvre-une-nouvelle-planete-a-son-3e-jour-de-stage-a-la-nasa","status":"publish","type":"post","link":"https:\/\/realites.com.tn\/fr\/a-17-ans-il-decouvre-une-nouvelle-planete-a-son-3e-jour-de-stage-a-la-nasa\/","title":{"rendered":"\u00c0 17 ans, il d\u00e9couvre une nouvelle plan\u00e8te \u00e0 son 3e jour de stage \u00e0 la NASA\u00a0"},"content":{"rendered":"<div>\n<div>Wolf Cukier, un \u00e9tudiant am\u00e9ricain de 17 ans a d\u00e9couvert une nouvelle plan\u00e8te lors de son troisi\u00e8me jour de stage \u00e0 la NASA. Il a pu l\u2019observer gr\u00e2ce au TESS, un t\u00e9lescope spatial consacr\u00e9 \u00e0 la recherche d\u2019exoplan\u00e8tes.<\/div>\n<div>Le 7 janvier, la NASA a annonc\u00e9 la d\u00e9couverte d\u2019une nouvelle plan\u00e8te 6,9 fois plus grande que la Terre, baptis\u00e9e TOI 1338b. Situ\u00e9e \u00e0 1.300 ann\u00e9es-lumi\u00e8re de la Terre, elle a la particularit\u00e9 de tourner autour de deux \u00e9toiles en m\u00eame temps. L\u2019autre particularit\u00e9 de cette plan\u00e8te est qu\u2019elle a \u00e9t\u00e9 rep\u00e9r\u00e9e pour la premi\u00e8re fois par un \u00e9tudiant de 17 ans, Wolf Cukier.<\/div>\n<\/div>\n<div>\n<div>Le jeune homme faisait un stage de deux mois \u00e0 l\u2019\u00e9t\u00e9 2019 au centre Goddard de la NASA, dans l\u2019\u00c9tat de New York. Sa t\u00e2che \u00e9tait d\u2019observer les changements de luminosit\u00e9 des \u00e9toiles observ\u00e9es par le t\u00e9lescope spatial TESS (Transiting Exoplanet Survey Satellite), a \u00e9crit l\u2019agence spatiale am\u00e9ricaine dans un communiqu\u00e9. La d\u00e9couverte a fait l\u2019objet d\u2019un d\u00e9bat d\u2019experts, lundi 6 janvier lors de la 235e assembl\u00e9e de l\u2019Union am\u00e9ricaine d\u2019astronomie \u00e0 Honolulu (Hawa\u00ef).<\/div>\n<div>Lors de son troisi\u00e8me jour de stage, il a remarqu\u00e9 quelque chose qui bloquait la lumi\u00e8re \u00e9mise par les deux soleils. Ses sup\u00e9rieurs ont ensuite v\u00e9rifi\u00e9 ses observations pendant plusieurs semaines avant de confirmer la nouvelle: il s\u2019agit bien d\u2019une plan\u00e8te.<\/div>\n<div>Son orbite n\u2019est pas r\u00e9guli\u00e8re, puisqu\u2019elle met entre 93 et 95 jours pour tourner autour de ses deux \u00e9toiles. La premi\u00e8re est 10% plus massive que notre Soleil, la seconde ne repr\u00e9sente qu\u2019un tiers de la masse de celui-ci. Devant les journalistes, Wolf Cukier a compar\u00e9 la plan\u00e8te qu\u2019il a d\u00e9couverte avec Tatooine, une plan\u00e8te fictive \u00e0 deux soleils dans les films Star Wars.<\/div>\n<div>L\u2019\u00e9tudiant a co\u00e9crit un article sur cette d\u00e9couverte avec des scientifiques du centre Goddard et d\u2019autres sp\u00e9cialistes issus de diff\u00e9rentes universit\u00e9s et institutions. Il esp\u00e8re faire carri\u00e8re dans le domaine spatial, et compte d\u2019abord faire ses \u00e9tudes dans les universit\u00e9s de Stanford, Princeton ou du Massachussetts.<\/div>\n<div dir=\"ltr\" style=\"text-align: right\">(D&rsquo;apr\u00e8s Sputnik)<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Wolf Cukier, un \u00e9tudiant am\u00e9ricain de 17 ans a d\u00e9couvert une nouvelle plan\u00e8te lors de son troisi\u00e8me jour de stage \u00e0 la NASA. Il a pu l\u2019observer gr\u00e2ce au TESS,&hellip;<\/p>\n","protected":false},"author":60,"featured_media":163132,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[7],"tags":[],"class_list":["post-163131","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-monde"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u00c0 17 ans, il d\u00e9couvre une nouvelle plan\u00e8te \u00e0 son 3e jour de stage \u00e0 la NASA\u00a0 - R\u00e9alit\u00e9s Magazine<\/title>\n<meta name=\"description\" content=\"Wolf Cukier, un \u00e9tudiant am\u00e9ricain de 17 ans a d\u00e9couvert une nouvelle plan\u00e8te lors de son troisi\u00e8me jour de stage \u00e0 la NASA. 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