{"id":450908,"date":"2025-10-09T21:00:24","date_gmt":"2025-10-09T21:00:24","guid":{"rendered":"https:\/\/www.europesays.com\/fr\/450908\/"},"modified":"2025-10-09T21:00:24","modified_gmt":"2025-10-09T21:00:24","slug":"on-les-voit-souvent-a-la-derniere-minute-un-asteroide-passe-a-400-km-de-la-terre-actualites","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/fr\/450908\/","title":{"rendered":"\u00ab\u00a0On les voit souvent \u00e0 la derni\u00e8re minute\u00a0\u00bb : un ast\u00e9ro\u00efde passe \u00e0 400 km de la Terre : Actualit\u00e9s"},"content":{"rendered":"<p class=\"lead \"><strong>L\u2019Agence spatiale europ\u00e9enne (ESA) a annonc\u00e9 qu\u2019un ast\u00e9ro\u00efde, 2025 TF, est pass\u00e9 \u00e0 seulement 400 km de la Terre le 1er octobre. L\u2019objet, petit et difficile \u00e0 d\u00e9tecter, n\u2019a \u00e9t\u00e9 rep\u00e9r\u00e9 qu\u2019apr\u00e8s son passage, sans pr\u00e9senter de danger pour la plan\u00e8te.<\/strong><\/p>\n<p class=\"lead \">L\u2019Agence spatiale europ\u00e9enne (ESA) a r\u00e9v\u00e9l\u00e9 lundi 6 octobre que la Terre a \u00e9t\u00e9 fr\u00f4l\u00e9e par un ast\u00e9ro\u00efde, 2025 TF, le 1er octobre, \u00e0 une distance d\u2019environ 400 km, soit similaire \u00e0 l\u2019orbite de la Station spatiale internationale (ISS). L\u2019annonce a \u00e9t\u00e9 faite cinq jours apr\u00e8s l\u2019\u00e9v\u00e9nement, la surveillance astronomique n\u2019ayant pas permis de d\u00e9tecter l\u2019objet avant son passage. L\u2019ESA a assum\u00e9 ce retard, soulignant la difficult\u00e9 de rep\u00e9rer de tels corps c\u00e9lestes.<\/p>\n<p class=\"lead \">Sylvain Bouley, pr\u00e9sident de la Soci\u00e9t\u00e9 astronomique de France, explique \u00e0 <a href=\"https:\/\/actu.fr\/sciences-technologie\/ca-peut-passer-sous-les-radars-un-asteroide-a-frole-la-terre-et-n-a-ete-decouvert-qu-apres-son-passage_63273762.html\" target=\"_blank\" rel=\"nofollow noopener\">Actu.fr<\/a> : \u00ab\u00a0Les ast\u00e9ro\u00efdes r\u00e9fl\u00e9chissent peu de lumi\u00e8re et [\u2026] se d\u00e9placent rapidement, \u00e7a peut passer sous les radars. Les petits objets, on les voit souvent \u00e0 la derni\u00e8re minute.\u00a0\u00bb Selon lui, la taille de 2025 TF, estim\u00e9e \u00e0 3 m\u00e8tres de diam\u00e8tre, rendait son observation particuli\u00e8rement compliqu\u00e9e.<\/p>\n<p>                                                                                                Un passage sous surveillance mais sans danger<\/p>\n<p class=\"lead \">Les ast\u00e9ro\u00efdes de cette dimension ne repr\u00e9sentent pas de menace pour la Terre. \u00ab\u00a0La probabilit\u00e9 d\u2019avoir un crat\u00e8re sur Terre, avec un ast\u00e9ro\u00efde de 3 m de diam\u00e8tre, est tr\u00e8s faible\u00a0\u00bb, pr\u00e9cise Sylvain Bouley. \u00c0 leur entr\u00e9e dans l\u2019atmosph\u00e8re, ces petits corps se d\u00e9sint\u00e8grent g\u00e9n\u00e9ralement avant de toucher le sol.<\/p>\n<p class=\"lead \">Le Centre national d\u2019\u00e9tudes spatiales (CNES) rappelle que la Terre est quotidiennement bombard\u00e9e de microm\u00e9t\u00e9orites de petite taille. De plus, la majorit\u00e9 de la surface terrestre \u00e9tant couverte par l\u2019eau ou par des zones peu habit\u00e9es, la probabilit\u00e9 qu\u2019un tel objet frappe une r\u00e9gion habit\u00e9e reste extr\u00eamement faible.<\/p>\n<p class=\"small font-weight-bold text-gray3 \"> publi\u00e9 le 9 octobre \u00e0 19h20, No\u00e9lie Legrand, 6M\u00e9dias<\/p>\n<p>                             Partager<\/p>\n","protected":false},"excerpt":{"rendered":"L\u2019Agence spatiale europ\u00e9enne (ESA) a annonc\u00e9 qu\u2019un ast\u00e9ro\u00efde, 2025 TF, est pass\u00e9 \u00e0 seulement 400 km de la&hellip;\n","protected":false},"author":2,"featured_media":450909,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[1011,27,43,40,41,39,42,44],"class_list":{"0":"post-450908","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-sciences-et-technologies","8":"tag-fr","9":"tag-france","10":"tag-science","11":"tag-science-and-technology","12":"tag-sciences","13":"tag-sciences-et-technologies","14":"tag-technologies","15":"tag-technology"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@fr\/115346225514389454","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/posts\/450908","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/comments?post=450908"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/posts\/450908\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/media\/450909"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/media?parent=450908"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/categories?post=450908"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/tags?post=450908"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}