{"id":1136,"date":"2004-11-16T10:20:00","date_gmt":"2004-11-16T09:20:00","guid":{"rendered":"https:\/\/kids.esa.int\/meteorites\/"},"modified":"2026-10-08T00:36:25","modified_gmt":"2026-10-07T22:36:25","slug":"meteorites","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fr\/meteorites\/","title":{"rendered":"Les m\u00e9t\u00e9orites"},"content":{"rendered":"
\n

Chaque jour, environ 50 tonnes de mat\u00e9riaux rocheux provenant de l'espace tombent \u00e0 la surface de la Terre. Ces roches sont appel\u00e9es \u00ab m\u00e9t\u00e9orites \u00bb.<\/p>\n<\/div>\n

Presque toutes les m\u00e9t\u00e9orites proviennent de la ceinture d'ast\u00e9ro\u00efdes principale qui se situe entre Jupiter et Mars. Bien que la plupart des ast\u00e9ro\u00efdes soient distants les uns des autres de plusieurs milliers de kilom\u00e8tres d'espace vide, les collisions sont assez fr\u00e9quentes.<\/p>\n

Il arrive parfois qu'un ast\u00e9ro\u00efde se brise en plusieurs morceaux. Le plus souvent, ce ne sont que quelques petits fragments qui se d\u00e9tachent. Ces fragments voyagent dans l'espace pendant des millions d'ann\u00e9es jusqu'\u00e0 ce qu'ils soient captur\u00e9s par la gravit\u00e9 d'une plan\u00e8te.<\/p>\n

S'ils survivent \u00e0 leur passage enflamm\u00e9 dans l'atmosph\u00e8re et parviennent \u00e0 atterrir \u00e0 la surface de la plan\u00e8te, ils deviennent des m\u00e9t\u00e9orites. Plusieurs milliers de m\u00e9t\u00e9orites ont \u00e9t\u00e9 d\u00e9couvertes sur Terre.<\/p>\n

\"Mars
M\u00e9t\u00e9orite martienne ALH 84001<\/figcaption><\/figure>\n

En \u00e9tudiant ces roches, les scientifiques ont beaucoup appris sur l'\u00e2ge et la naissance du Syst\u00e8me Solaire. Il a \u00e9t\u00e9 prouv\u00e9 que certaines m\u00e9t\u00e9orites provenaient de la Lune ou de Mars.<\/p>\n

La m\u00e9t\u00e9orite ferreuse Hoba, trouv\u00e9e au sud de l'Afrique, est la plus grande jamais d\u00e9couverte sur Terre. Elle mesure 10 m\u00e8tres de large et p\u00e8se 60 tonnes.<\/p>\n

Aucune chute de m\u00e9t\u00e9orite n'a jamais fait de victime, mais plusieurs personnes ont \u00e9t\u00e9 bless\u00e9es. On sait \u00e9galement que les m\u00e9t\u00e9orites ont tu\u00e9 une vache et endommag\u00e9 des maisons et des voitures.<\/p>","protected":false},"excerpt":{"rendered":"

Every day about 50 tonnes of rocky material from space lands on the Earth’s surface. These rocks are called meteorites. Nearly all meteorites come from the main asteroid belt between […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2004\/05\/meteor_crater_in_arizona3\/17895645-2-eng-GB\/Meteor_Crater_in_Arizona.jpg","esa_banner_description":"Meteor Crater in Arizona","esa_banner_credit":"David Roddy, USGS","esa_banner_licence":"No ESA licences available","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2004\/05\/Meteor_Crater_in_Arizona3","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[46,10,11],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1136","post","type-post","status-publish","format-standard","hentry","category-comets-and-meteors","category-learn","category-our-universe","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/1136","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/comments?post=1136"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/1136\/revisions"}],"predecessor-version":[{"id":4866,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/1136\/revisions\/4866"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/media?parent=1136"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/categories?post=1136"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/tags?post=1136"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/panel?post=1136"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/language?post=1136"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/age?post=1136"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/duration?post=1136"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/resource_type?post=1136"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/audience?post=1136"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/wf_post_folders?post=1136"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}