{"id":28310,"date":"2023-12-29T13:37:02","date_gmt":"2023-12-29T13:37:02","guid":{"rendered":"https:\/\/dekkbi.com\/?p=28310"},"modified":"2023-12-29T13:37:04","modified_gmt":"2023-12-29T13:37:04","slug":"lasteroide-dieu-du-chaos-passera-au-plus-pres-de-la-terre-en-2029-la-nasa-lance-une-mission-dobservation","status":"publish","type":"post","link":"https:\/\/dekkbi.com\/?p=28310","title":{"rendered":"L\u2019ast\u00e9ro\u00efde \u201cDieu du Chaos\u201d passera au plus pr\u00e8s de la Terre en 2029, la NASA lance une mission d&rsquo;observation"},"content":{"rendered":"\n<p><strong>Ast\u00e9ro\u00efde en vue. Apophis, \u00e9galement surnomm\u00e9 \u201cDieu du Chaos\u201d, passera au plus proche de la Terre en 2029. En attendant, la NASA a lanc\u00e9 une nouvelle mission d&rsquo;observation pour \u00e9tudier l\u2019objet c\u00e9leste de plus pr\u00e8s.<\/strong><\/p>\n\n\n\n<p>La NASA l\u2019a annonc\u00e9: le 13 avril 2029, l\u2019ast\u00e9ro\u00efde Apophis survolera la Terre de \u201ctr\u00e8s pr\u00e8s\u201d, ce qui \u201cne s\u2019est jamais produit depuis l\u2019aube de l\u2019histoire\u201d. Celui que l\u2019on surnomme aussi \u201cDieu du Chaos\u201d survolera notre plan\u00e8te \u00e0 pr\u00e8s de 32.000 kilom\u00e8tres, soit une distance similaire \u00e0 celles de certains satellites de t\u00e9l\u00e9communications en orbite. Il pourrait m\u00eame \u00eatre visible dans l\u2019h\u00e9misph\u00e8re oriental.<\/p>\n\n\n\n<p>L\u2019ast\u00e9ro\u00efde, qui mesure environ 370 m\u00e8tres de diam\u00e8tre, ne s\u2019approche de la Terre que tous les 7.500 ans.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Mission d&rsquo;observation<\/h2>\n\n\n\n<p>Pour se pr\u00e9parer, un engin spatial de la NASA r\u00e9cemment revenu de l\u2019espace a \u00e9t\u00e9 relanc\u00e9 pour une mission d\u2019\u00e9tude de l\u2019ast\u00e9ro\u00efde. La sonde est revenue sur Terre en septembre dernier, apr\u00e8s avoir pass\u00e9 sept ans \u00e0\u00a0collecter des \u00e9chantillons de la roche spatiale Bennu. D\u00e9sormais baptis\u00e9 OSIRIX-APEX, le vaisseau spatial observera les effets de la gravit\u00e9 terrestre sur l\u2019ast\u00e9ro\u00efde lorsque ce dernier s\u2019approchera de notre plan\u00e8te.<\/p>\n\n\n\n<p>La sonde rencontrera l\u2019ast\u00e9ro\u00efde le 13 avril 2029, mais ne s\u2019y posera pas et fonctionnera \u00e0 proximit\u00e9 pendant 18 mois. Elle ne se contentera pas d\u2019observer les changements \u00e0 la surface, mais elle cartographiera \u00e9galement la surface et analysera la composition chimique de la roche, a indiqu\u00e9 la NASA.<\/p>\n\n\n\n<p>Le vaisseau s\u2019approchera aussi \u00e0 moins de 10 m\u00e8tres de la surface du rocher et actionnera ses propulseurs vers le bas pour voir ce qui se met en mouvement, donnant ainsi aux scientifiques un \u201caper\u00e7u de la mati\u00e8re qui se trouve en dessous\u201d.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ast\u00e9ro\u00efde en vue. Apophis, \u00e9galement surnomm\u00e9 \u201cDieu du Chaos\u201d, passera au plus proche de la Terre en 2029. En attendant,<\/p>\n","protected":false},"author":1,"featured_media":28311,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[46],"tags":[],"class_list":["post-28310","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\/28310","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=28310"}],"version-history":[{"count":1,"href":"https:\/\/dekkbi.com\/index.php?rest_route=\/wp\/v2\/posts\/28310\/revisions"}],"predecessor-version":[{"id":28312,"href":"https:\/\/dekkbi.com\/index.php?rest_route=\/wp\/v2\/posts\/28310\/revisions\/28312"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dekkbi.com\/index.php?rest_route=\/wp\/v2\/media\/28311"}],"wp:attachment":[{"href":"https:\/\/dekkbi.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=28310"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dekkbi.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=28310"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dekkbi.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=28310"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}