{"id":6111,"date":"2026-09-30T09:55:37","date_gmt":"2026-09-30T09:55:37","guid":{"rendered":"https:\/\/netguide.io\/news\/2026\/09\/30\/simulation-la-lune-a-pu-se-former-juste-des-heures-apres-la-collision\/"},"modified":"2026-09-30T09:55:37","modified_gmt":"2026-09-30T09:55:37","slug":"simulation-la-lune-a-pu-se-former-juste-des-heures-apres-la-collision","status":"publish","type":"post","link":"https:\/\/netguide.io\/news\/fr\/2026\/09\/30\/simulation-la-lune-a-pu-se-former-juste-des-heures-apres-la-collision\/","title":{"rendered":"Simulation : La Lune a pu se former juste des heures apr\u00e8s la collision"},"content":{"rendered":"<div id=\"netgu-170676426\" class=\"netgu-before-content netgu-entity-placement\"><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-6258556257245998\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block;\" data-ad-client=\"ca-pub-6258556257245998\" \ndata-ad-slot=\"3494115342\" \ndata-ad-format=\"auto\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div><p class=\"wp-block-paragraph\"><strong>La Lune de la Terre n&#8217;a peut-\u00eatre pas \u00e9t\u00e9 lentement assembl\u00e9e \u00e0 partir d&#8217;un disque de d\u00e9bris pendant des d\u00e9cennies \u2013 elle aurait pu \u00eatre termin\u00e9e en quelques heures seulement de l&#8217;impact g\u00e9ant. C&#8217;est la conclusion d&#8217;une nouvelle \u00e9tude de mod\u00e9lisation dans la revue \u201eThe Astrophysical Journal Letters&#8221;.<\/strong><\/p>\n\n<h3 class=\"wp-block-heading\">Simulations avec r\u00e9sistance r\u00e9aliste \u00e0 la roche<\/h3>\n\n<p class=\"wp-block-paragraph\">Une \u00e9quipe dirig\u00e9e par Adeene Denton (Southwest Research Institute) et Erik Asphaug (University of Arizona) a relanc\u00e9 l&#8217;impact g\u00e9ant classique entre la jeune Terre et le corps de taille Mars Theia. Contrairement aux mod\u00e8les ant\u00e9rieurs qui traitaient les deux corps comme des fluides purs, les chercheurs ont pour la premi\u00e8re fois expliqu\u00e9 la force de la roche d\u00e9pendante de la temp\u00e9rature \u2013 \u00e0 quel point le mat\u00e9riau r\u00e9siste \u00e0 \u00eatre d\u00e9chir\u00e9.<\/p><div id=\"netgu-2080728902\" class=\"netgu-content netgu-entity-placement\"><aside class=\"deals-top deals-top--compact\">\n\n\t\t\t<h3 class=\"deals-top__title\">Top-Deals<\/h3>\n\t\n\t\t\t<ul class=\"deals-top__list\">\n\t\t\t\t\t\t\t<li class=\"deals-top__item\">\n\t\t\t\t\t<a class=\"deals-top__link\" href=\"https:\/\/netguide.io\/deals\/de\/deals\/moon-knight-digital-watch-face-fuer-wear-os-4\/\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img class=\"deals-top__image\" src=\"https:\/\/netguide.io\/news\/wp-content\/uploads\/sites\/15\/2026\/09\/deal-27-150x150.png\" alt=\"\" width=\"52\" height=\"52\" loading=\"lazy\" \/>\n\t\t\t\t\t\t\n\t\t\t\t\t\t<span 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src=\"https:\/\/netguide.io\/news\/wp-content\/uploads\/sites\/15\/2026\/09\/capsule_616x353-11-150x150.jpg\" alt=\"\" width=\"52\" height=\"52\" loading=\"lazy\" \/>\n\t\t\t\t\t\t\n\t\t\t\t\t\t<span class=\"deals-top__body\">\n\t\t\t\t\t\t\t<span class=\"deals-top__name\">Train Sim World 7: Starter Pack kostenlos f\u00fcr PS4, PS5, Xbox, PC<\/span>\n\n\t\t\t\t\t\t\t<span class=\"deals-top__meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"deals-top__price\">Gratis<\/span>\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/span>\n\n\t\t\t\t\t\t<span class=\"deals-top__temperature\">\n\t\t\t\t\t\t\t55\u00b0\n\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/li>\n\t\t\t\t\t\t\t<li class=\"deals-top__item\">\n\t\t\t\t\t<a class=\"deals-top__link\" href=\"https:\/\/netguide.io\/deals\/de\/deals\/ml2u-watchfaces-fuer-wearos-im-google-play-store-2\/\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img class=\"deals-top__image\" 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href=\"https:\/\/netguide.io\/deals\/de\/deals\/kostenloses-dlc-bundle-fuer-gears-of-war-e-day-liquid-death-bundle\/\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img class=\"deals-top__image\" src=\"https:\/\/netguide.io\/news\/wp-content\/uploads\/sites\/15\/2026\/09\/2844571_1-150x150.webp\" alt=\"\" width=\"52\" height=\"52\" loading=\"lazy\" \/>\n\t\t\t\t\t\t\n\t\t\t\t\t\t<span class=\"deals-top__body\">\n\t\t\t\t\t\t\t<span class=\"deals-top__name\">Kostenloses DLC-Bundle f\u00fcr Gears of War E-Day \u2013 Liquid Death Bundle<\/span>\n\n\t\t\t\t\t\t\t<span class=\"deals-top__meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"deals-top__price\">Gratis<\/span>\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/span>\n\n\t\t\t\t\t\t<span class=\"deals-top__temperature\">\n\t\t\t\t\t\t\t54\u00b0\n\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/li>\n\t\t\t\t\t\t\t<li class=\"deals-top__item\">\n\t\t\t\t\t<a class=\"deals-top__link\" href=\"https:\/\/netguide.io\/deals\/de\/deals\/kostenlose-emote-im-clash-royale-store\/\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img class=\"deals-top__image\" src=\"https:\/\/netguide.io\/news\/wp-content\/uploads\/sites\/15\/2026\/09\/share-image-clashroyale-150x150.jpg\" alt=\"\" width=\"52\" height=\"52\" loading=\"lazy\" \/>\n\t\t\t\t\t\t\n\t\t\t\t\t\t<span class=\"deals-top__body\">\n\t\t\t\t\t\t\t<span class=\"deals-top__name\">Kostenlose Emote im Clash Royale-Store<\/span>\n\n\t\t\t\t\t\t\t<span class=\"deals-top__meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"deals-top__price\">Gratis<\/span>\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/span>\n\n\t\t\t\t\t\t<span class=\"deals-top__temperature\">\n\t\t\t\t\t\t\t54\u00b0\n\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/li>\n\t\t\t\t\t<\/ul>\n\n\t\t\t\t\t<p class=\"deals-top__more\">\n\t\t\t\t<a href=\"https:\/\/netguide.io\/deals\/\">Alle Deals ansehen \u2192<\/a>\n\t\t\t<\/p>\n\t\t\t<\/aside>\n<\/div>\n\n<h3 class=\"wp-block-heading\">Cinq heures au lieu d&#8217;une longue phase de d\u00e9bris<\/h3>\n\n<p class=\"wp-block-paragraph\">Dans un sc\u00e9nario, la Lune s&#8217;est form\u00e9e comme un corps intact environ cinq heures apr\u00e8s l&#8217;impact. Lorsque les partenaires en collision \u00e9taient plus chauds et donc plus doux, la collision a bris\u00e9 Theia compl\u00e8tement dans un disque de d\u00e9bris dont la Lune ne s&#8217;est assembl\u00e9e que progressivement. Le facteur d\u00e9cisif est donc l&#8217;\u00e9tat thermique des corps originaux \u2013 quelque chose que les chercheurs ont longtemps suppos\u00e9 \u00eatre n\u00e9gligeable.<\/p>\n\n<h3 class=\"wp-block-heading\">Un mod\u00e8le, pas une observation<\/h3>\n\n<p class=\"wp-block-paragraph\">Fait important, les r\u00e9sultats proviennent de simulations informatiques et non de mesures directes. Pourquoi la Terre et la Lune sont chimiquement si semblables reste inexpliqu\u00e9e. N\u00e9anmoins, la nouvelle approche pourrait \u00e9ventuellement aider \u00e0 \u00e9pingler exactement quand la Lune s&#8217;est form\u00e9e.<\/p>\n\n<p class=\"wp-block-paragraph\"><em>Source : L&#8217;\u00e9tude de Denton, Asphaug et al. est parue dans \u00ab The Astrophysical Journal Letters \u00bb (DOI 10.3847\/2041-8213\/ae91e9). Contexte dans le communiqu\u00e9 de presse de l&#8217;Universit\u00e9 de l&#8217;Arizona : <a href=\"https:\/\/news.arizona.edu\/news\/soft-and-stretchy-or-rock-solid-new-modeling-study-sheds-light-how-earth-got-its-moon\" rel=\"noopener\" target=\"_blank\">Nouvelles.arizona.edu<\/a>.<\/em><\/p><div id=\"netgu-2635312701\" class=\"netgu-after-content netgu-entity-placement\"><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-6258556257245998\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block;\" data-ad-client=\"ca-pub-6258556257245998\" \ndata-ad-slot=\"4559785002\" \ndata-ad-format=\"auto\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>La Lune de la Terre n&#8217;a peut-\u00eatre pas \u00e9t\u00e9 lentement assembl\u00e9e \u00e0 partir d&#8217;un disque de d\u00e9bris pendant des d\u00e9cennies [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":1999,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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