{"id":101083,"date":"2026-05-09T04:18:08","date_gmt":"2026-05-09T04:18:08","guid":{"rendered":"https:\/\/www.europesays.com\/be-fr\/101083\/"},"modified":"2026-05-09T04:18:08","modified_gmt":"2026-05-09T04:18:08","slug":"un-asteroide-dun-diametre-de-260-km-pourrait-etre-a-lorigine-du-plus-grand-cratere-de-la-lune","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/be-fr\/101083\/","title":{"rendered":"Un ast\u00e9ro\u00efde d&rsquo;un diam\u00e8tre de 260 km pourrait \u00eatre \u00e0 l&rsquo;origine du plus grand crat\u00e8re de la Lune"},"content":{"rendered":"<p class=\"bodytext\">Lorsque nous regardons la <a href=\"http:\/\/www.notebookcheck.net\/Artemis-II-breaks-record-for-farthest-human-travel-in-space.1267261.0.html\" target=\"_self\" class=\"internal-link\" rel=\"nofollow noopener\">Lune<\/a>\u00e0 l&rsquo;\u0153il nu ou \u00e0 l&rsquo;aide d&rsquo;un t\u00e9lescope, on peut voir de nombreux crat\u00e8res \u00e0 sa surface. Le plus grand crat\u00e8re, appel\u00e9 <a href=\"https:\/\/en.wikipedia.org\/wiki\/South_Pole%E2%80%93Aitken_basin\" target=\"_blank\" rel=\"nofollow noopener\">South Pole-Aitken basin<\/a>mesure plus de 2 500 km de diam\u00e8tre et les astronomes ont peut-\u00eatre r\u00e9cemment identifi\u00e9 son origine.&#13;<\/p>\n<p class=\"bodytext\">Il faut dire que le bassin SPA reste myst\u00e9rieux, malgr\u00e9 son importance scientifique. En effet, il pourrait contenir des mat\u00e9riaux provenant du manteau lunaire, ce qui int\u00e9resse beaucoup les <a href=\"http:\/\/www.notebookcheck.net\/Scientists-probe-the-dynamic-Cocoon-of-a-nearby-pulsar.1251740.0.html\" target=\"_self\" class=\"internal-link\" rel=\"nofollow noopener\">scientifiques<\/a>. Or, une \u00e9quipe de chercheurs dirig\u00e9e par Shigeru Wakita, de l&rsquo;universit\u00e9 de Purdue, a r\u00e9alis\u00e9 des simulations en 3D et d\u00e9couvert que l&rsquo;impact a vraisemblablement \u00e9t\u00e9 provoqu\u00e9 par un ast\u00e9ro\u00efde de 260 km de diam\u00e8tre. Et ce n&rsquo;est pas tout, car selon des <a href=\"http:\/\/www.notebookcheck.net\/Astronomers-have-determined-the-age-of-a-brown-dwarf-located-57-light-years-away.1291286.0.html\" target=\"_self\" class=\"internal-link\" rel=\"nofollow noopener\">astronomes<\/a>cet objet c\u00e9leste aurait \u00e9t\u00e9 compos\u00e9 de fer et de roche.&#13;<\/p>\n<p class=\"bodytext\">En outre, cet ast\u00e9ro\u00efde a heurt\u00e9 la Lune \u00e0 un angle faible de 30 degr\u00e9s et \u00e0 une vitesse d&rsquo;environ 13 km par seconde. En \u00e9tudiant les effets de ce puissant impact, les astronomes estiment que des fragments du manteau lunaire ont \u00e9t\u00e9 \u00e9ject\u00e9s vers le p\u00f4le sud de la Lune.<\/p>\n","protected":false},"excerpt":{"rendered":"Lorsque nous regardons la Lune\u00e0 l&rsquo;\u0153il nu ou \u00e0 l&rsquo;aide d&rsquo;un t\u00e9lescope, on peut voir de nombreux crat\u00e8res&hellip;\n","protected":false},"author":2,"featured_media":101084,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[70],"tags":[11606,12375,4098,20452,2681,12,13,18,17,37874,1918,10075,3869,1289,37875,10676,1921,1285,37876,1287,1286,73,71,75,72,26428,76,74,1288],"class_list":{"0":"post-101083","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-sciences-et-technologies","8":"tag-artemis","9":"tag-asteroide","10":"tag-astronautes","11":"tag-astronomes","12":"tag-astronomie","13":"tag-be","14":"tag-be-fr","15":"tag-belgique","16":"tag-belgium","17":"tag-cratere","18":"tag-espace","19":"tag-geologie","20":"tag-impact","21":"tag-informations-sur-des-ordinateurs-portatifs","22":"tag-lunaire","23":"tag-lune","24":"tag-nasa","25":"tag-nouvelles","26":"tag-nouvelles-scientifiques","27":"tag-rapport","28":"tag-revues","29":"tag-science","30":"tag-science-and-technology","31":"tag-sciences","32":"tag-sciences-et-technologies","33":"tag-simulation","34":"tag-technologies","35":"tag-technology","36":"tag-test"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@be_fr\/116542695408519670","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/posts\/101083","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/comments?post=101083"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/posts\/101083\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/media\/101084"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/media?parent=101083"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/categories?post=101083"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/tags?post=101083"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}