{"id":3548,"date":"2026-10-26T13:21:35","date_gmt":"2026-10-26T13:21:35","guid":{"rendered":"https:\/\/fromrss.com\/?p=3548"},"modified":"2026-10-26T13:40:46","modified_gmt":"2026-10-26T13:40:46","slug":"voyage-virtuel-a-travers-lunivers","status":"publish","type":"post","link":"https:\/\/fromrss.com\/index.php\/2026\/10\/26\/voyage-virtuel-a-travers-lunivers\/","title":{"rendered":"Voyage virtuel \u00e0 travers l’univers"},"content":{"rendered":"\n

Lumina <\/a>est la plus grande simulation cosmologique \u00e0 ce jour, retra\u00e7ant l’histoire de l’univers. Il s’agit d’un travail conjoint entre des chercheurs du MIT, de l’universit\u00e9 de Dallas et de l’universit\u00e9 d’Harvard. Son objectif est de retracer les premiers moments de l’univers, et ce pendant deux milliards d’ann\u00e9es. Cette simulation permet aux scientifiques de tester leurs th\u00e9ories sur l’\u00e9volution de l’univers juste apr\u00e8s le Big Bang. Les pr\u00e9dictions faites par Lumina servent aussi \u00e0 mieux appr\u00e9hender le fonctionnement de l’univers et \u00e0 s’assurer que les lois qui le gouvernent sont correctes ou si certaines doivent \u00eatre corrig\u00e9es ou reconsid\u00e9r\u00e9es. Techniquement, elle utilise plus de 100 000 processeurs et 7 500 unit\u00e9s de traitement graphique.<\/p>\n\n\n\n

La vid\u00e9o ci-dessous repr\u00e9sente la travers\u00e9e d’un halo massif o\u00f9 des galaxies deviennent visibles vers la fin de la s\u00e9quence. Elle illustre la distribution de la densit\u00e9 de mati\u00e8re noire, de la densit\u00e9 et de la temp\u00e9rature du gaz, de la m\u00e9tallicit\u00e9 du gaz, ainsi que de la lumi\u00e8re stellaire au sein du syst\u00e8me.<\/p>\n","protected":false},"excerpt":{"rendered":"

Lumina est la plus grande simulation cosmologique \u00e0 ce jour, retra\u00e7ant l’histoire de l’univers. Il s’agit d’un travail conjoint entre des chercheurs du MIT, de l’universit\u00e9 de Dallas et de l’universit\u00e9 d’Harvard. Son objectif est de retracer les premiers moments de l’univers, et ce pendant deux milliards d’ann\u00e9es. Cette simulation permet aux scientifiques de tester […]<\/p>\n","protected":false},"author":1,"featured_media":3554,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,16],"tags":[1047,1042,1046,1040,1044,1045,453,1043,1041],"class_list":["post-3548","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-espace","category-sciences","tag-big-bang","tag-galaxies","tag-gaz","tag-halo","tag-lumina","tag-matiere-noire","tag-simulation","tag-univers","tag-virtuel"],"yoast_head":"\nVoyage virtuel \u00e0 travers l'univers - fromrss<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fromrss.com\/index.php\/2026\/10\/26\/voyage-virtuel-a-travers-lunivers\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Voyage virtuel \u00e0 travers l'univers - fromrss\" \/>\n<meta property=\"og:description\" content=\"Lumina est la plus grande simulation cosmologique \u00e0 ce jour, retra\u00e7ant l’histoire de l’univers. 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