{"id":38375,"date":"2025-07-17T12:23:33","date_gmt":"2025-07-17T12:23:33","guid":{"rendered":"https:\/\/new.igihe.com\/french\/La-plus-grosse-meteorite-provenant-de-Mars-vendue-5-3-millions-de-dollars-38375\/"},"modified":"2025-07-17T12:07:20","modified_gmt":"2025-07-17T12:07:20","slug":"La-plus-grosse-meteorite-provenant-de-Mars-vendue-5-3-millions-de-dollars","status":"publish","type":"post","link":"https:\/\/new.igihe.com\/french\/La-plus-grosse-meteorite-provenant-de-Mars-vendue-5-3-millions-de-dollars\/","title":{"rendered":"La plus grosse m\u00e9t\u00e9orite provenant de Mars vendue 5,3 millions de dollars"},"content":{"rendered":"<p>Baptis\u00e9e &#8216;NWA 16788&#8217;, la m\u00e9t\u00e9orite impressionnante p\u00e8se 24,5 kilogrammes et repr\u00e9sente \u00e0 elle seule environ 70 % du volume total de toutes les roches martiennes connues sur Terre. Un fait exceptionnel qui justifie son immense valeur scientifique et commerciale.<\/p>\n<p>Les m\u00e9t\u00e9orites sont des fragments de roche provenant de l\u2019espace. Apr\u00e8s avoir travers\u00e9 l\u2019atmosph\u00e8re terrestre sans se d\u00e9sint\u00e9grer compl\u00e8tement, elles atteignent le sol. Dans le cas de NWA 16788, son origine martienne a \u00e9t\u00e9 confirm\u00e9e par des analyses scientifiques pouss\u00e9es.<\/p>\n<p>D\u00e9couverte en novembre 2023 dans la r\u00e9gion d\u2019Agadez, au Niger, la m\u00e9t\u00e9orite se distingue par sa taille inhabituelle et sa couleur rouge\u00e2tre, \u00e9voquant fortement celle de la plan\u00e8te rouge. Ces caract\u00e9ristiques en font un objet d\u2019une extr\u00eame raret\u00e9.<\/p>\n<p>\u00ab Un tel sp\u00e9cimen ne se rencontre qu\u2019une fois dans une vie \u00bb, a d\u00e9clar\u00e9 Sotheby\u2019s, soulignant le caract\u00e8re exceptionnel de cette pi\u00e8ce lors de la mise en vente.<\/p>\n<p>Selon les scientifiques, NWA 16788 serait n\u00e9e d\u2019un \u00e9v\u00e9nement cataclysmique survenu sur Mars : la collision d\u2019un gigantesque ast\u00e9ro\u00efde avec la plan\u00e8te, ayant projet\u00e9 dans l\u2019espace des fragments de sa cro\u00fbte. Certains de ces d\u00e9bris auraient ensuite d\u00e9riv\u00e9 jusqu\u2019\u00e0 la Terre, franchissant son atmosph\u00e8re pour s\u2019y poser sous forme\u00a0de\u00a0m\u00e9t\u00e9orites.<\/p>\n<figure class=\"spip-document spip-document-63453 aligncenter\"><img decoding=\"async\" src=\"https:\/\/fr.igihe.com\/IMG\/jpg\/met.jpg\" alt=\"Une rare m\u00e9t\u00e9orite martienne, la plus grosse jamais trouv\u00e9e sur Terre, a \u00e9t\u00e9 vendue 5,3 millions de dollars lors d&#039;ench\u00e8res chez Sotheby\u2019s \u00e0 New York\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Une m\u00e9t\u00e9orite extr\u00eamement rare, la plus imposante jamais d\u00e9couverte sur Terre en provenance de la plan\u00e8te Mars, a \u00e9t\u00e9 vendue aux ench\u00e8res pour 5,3 millions de dollars am\u00e9ricains lors d\u2019une vente organis\u00e9e ce mercredi par la maison Sotheby\u2019s, \u00e0 New York.<\/p>\n","protected":false},"author":488,"featured_media":4000063452,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7534],"tags":[7605],"byline":[7717],"hashtag":[],"class_list":["post-38375","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sciences-technologies","tag-homenews","byline-igihe"],"bylines":[{"id":7717,"name":"IGIHE","slug":"igihe","description":"","image":{"id":0,"url":"https:\/\/secure.gravatar.com\/avatar\/?s=96&d=mm&f=y&r=g","alt":"Default avatar","title":"Default avatar","caption":"","mime_type":"image\/jpeg","sizes":[]},"user_id":393}],"contributors":[{"id":7717,"name":"IGIHE","slug":"igihe","description":"","image":{"id":0,"url":"https:\/\/secure.gravatar.com\/avatar\/?s=96&d=mm&f=y&r=g","alt":"Default avatar","title":"Default avatar","caption":"","mime_type":"image\/jpeg","sizes":[]},"user_id":393}],"featured_image":{"id":4000063452,"url":"https:\/\/fr-images.igihe.com\/IMG\/logo\/met_cp.jpg","alt":"","caption":"","mime_type":"image\/jpeg","width":0,"height":0,"sizes":{"thumbnail":{"url":"https:\/\/fr-images.igihe.com\/IMG\/logo\/met_cp.jpg","width":1,"height":1},"medium":{"url":"https:\/\/fr-images.igihe.com\/IMG\/logo\/met_cp.jpg","width":1,"height":1},"medium_large":{"url":"https:\/\/fr-images.igihe.com\/IMG\/logo\/met_cp.jpg","width":1,"height":1},"large":{"url":"https:\/\/fr-images.igihe.com\/IMG\/logo\/met_cp.jpg","width":1,"height":1},"full":{"url":"https:\/\/fr-images.igihe.com\/IMG\/logo\/met_cp.jpg","width":0,"height":0}}},"_links":{"self":[{"href":"https:\/\/new.igihe.com\/french\/wp-json\/wp\/v2\/posts\/38375","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/new.igihe.com\/french\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/new.igihe.com\/french\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/new.igihe.com\/french\/wp-json\/wp\/v2\/users\/488"}],"replies":[{"embeddable":true,"href":"https:\/\/new.igihe.com\/french\/wp-json\/wp\/v2\/comments?post=38375"}],"version-history":[{"count":0,"href":"https:\/\/new.igihe.com\/french\/wp-json\/wp\/v2\/posts\/38375\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/new.igihe.com\/french\/wp-json\/wp\/v2\/media\/4000063452"}],"wp:attachment":[{"href":"https:\/\/new.igihe.com\/french\/wp-json\/wp\/v2\/media?parent=38375"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/new.igihe.com\/french\/wp-json\/wp\/v2\/categories?post=38375"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/new.igihe.com\/french\/wp-json\/wp\/v2\/tags?post=38375"},{"taxonomy":"byline","embeddable":true,"href":"https:\/\/new.igihe.com\/french\/wp-json\/wp\/v2\/byline?post=38375"},{"taxonomy":"hashtag","embeddable":true,"href":"https:\/\/new.igihe.com\/french\/wp-json\/wp\/v2\/hashtag?post=38375"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}