{"id":11540,"date":"2016-03-20T17:27:41","date_gmt":"2016-03-20T16:27:41","guid":{"rendered":"http:\/\/www.laterredufutur.com\/accueil\/?p=11540"},"modified":"2016-03-20T18:00:56","modified_gmt":"2016-03-20T17:00:56","slug":"cette-simulation-informatique-recree-avec-precision-de-350-millions-dannees-lumiere-de-notre-univers","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/cette-simulation-informatique-recree-avec-precision-de-350-millions-dannees-lumiere-de-notre-univers\/","title":{"rendered":"Cette simulation informatique recr\u00e9e avec pr\u00e9cision 350 millions d&rsquo;ann\u00e9es-lumi\u00e8re de notre Univers"},"content":{"rendered":"<div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"1\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<p style=\"text-align: justify;\">Cela pourrait \u00eatre sorti d&rsquo;un roman de science-fiction, mais les chercheurs ont cr\u00e9\u00e9 une simulation tr\u00e8s pr\u00e9cise de notre univers int\u00e9rieur avec\u00a0un supercalculateur massif, donnant aux astronomes la possibilit\u00e9 unique de voir l&rsquo;\u00e9volution de l&rsquo;Univers\u00a0sous leurs yeux.<\/p>\n<p style=\"text-align: justify;\">Pour que cette simulation puisse \u00eatre une r\u00e9alit\u00e9, une \u00e9quipe du Centre Harvard-Smithsonian pour l&rsquo;Astrophysique a connect\u00e9 8.000 processeurs en 2014, et a cr\u00e9\u00e9 un mod\u00e8le qui englobe de nombreuses \u00e9quations de ces derniers si\u00e8cles d&rsquo;observations astronomiques qui ont \u00e9volu\u00e9 sur plusieurs d\u00e9cennies. Apr\u00e8s trois mois de calculs\u00a0constant, l&rsquo;\u00e9quipe a r\u00e9ussi \u00e0 recr\u00e9er un grand cube de 350 millions d&rsquo;ann\u00e9es-lumi\u00e8re de l&rsquo; Univers qui a \u00e9volu\u00e9 depuis plus de 13 milliards d&rsquo; ann\u00e9es.<\/p>\n<p style=\"text-align: justify;\">Selon Ian O&rsquo;Neil de\u00a0Discovery, le mod\u00e8le &#8211; appel\u00e9 Illustris &#8211; a une r\u00e9solution de 12 milliards de pixels, ce qui prendrait pour un ordinateur de maison, environ 2000 ans de calculs pour le simuler.<\/p>\n<p style=\"text-align: justify;\">\u00ab\u00a0Illustris est comme une machine temporelle. Nous pouvons aller de l&rsquo; avant vers l&rsquo;arri\u00e8re dans le temps. Nous pouvons mettre en pause la simulation et zoomer sur un amas de galaxies ou une galaxie unique et de voir ce qui se passe vraiment,\u00a0\u00bb a d\u00e9clar\u00e9 le co-auteur Shy Genel Discovery.<\/p><div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"2\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n\n<p style=\"text-align: justify;\">Comme notre puissance de calcul augmente, nous esp\u00e9rons avoir plus de ces simulations\u00a0dans\u00a0l&rsquo;avenir. Jusque &#8211; l\u00e0, vous pouvez lire le rapport complet de l&rsquo;\u00e9quipe dans <a href=\"http:\/\/www.nature.com\/nature\/journal\/v509\/n7499\/full\/nature13316.html\" target=\"_blank\">la revue Nature<\/a>, et de regarder une partie de la simulation qui suit\u00a0:<\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/SY0bKE10ZDM?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=fr-FR&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n<p>Traduction et adaptation de <a href=\"http:\/\/www.laterredufutur.com\/accueil\/\" target=\"_blank\">la Terre du Futur<\/a><\/p>\n<p>source :\u00a0<a href=\"http:\/\/www.sciencealert.com\/\" target=\"_blank\">http:\/\/www.sciencealert.com\/<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"11540\">(483)<\/p>\n<!--CusAds0-->\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Cela pourrait \u00eatre sorti d&rsquo;un roman de science-fiction, mais les chercheurs ont cr\u00e9\u00e9 une simulation tr\u00e8s pr\u00e9cise de notre univers&#8230;<\/p>\n","protected":false},"author":1,"featured_media":11541,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"ngg_post_thumbnail":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"Cette #simulation informatique recr\u00e9e avec pr\u00e9cision de 350 millions d'ann\u00e9es-lumi\u00e8re de notre #Univers @laterredufutur","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[22],"tags":[670,125,2090,436,851,1656,684],"class_list":["post-11540","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-espace","tag-etoile","tag-galaxie","tag-ordinateur","tag-passe","tag-simulation","tag-univers","tag-video","wpcat-22-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/03\/univers-simulation.jpg?fit=1024%2C415&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-308","jetpack-related-posts":[{"id":21324,"url":"https:\/\/www.laterredufutur.com\/accueil\/une-nouvelle-simulation-montre-exactement-a-quoi-ressemblerait-la-matiere-sombre-si-nous-pouvions-la-voir\/","url_meta":{"origin":11540,"position":0},"title":"Une nouvelle simulation montre exactement \u00e0 quoi ressemblerait la mati\u00e8re noire si nous pouvions la voir","author":"Admin","date":"12 septembre 2020","format":false,"excerpt":"Comment \u00e9tudier quelque chose d'invisible? C'est un d\u00e9fi auquel sont confront\u00e9s les astronomes qui \u00e9tudient la mati\u00e8re noire. Bien que la mati\u00e8re noire repr\u00e9sente 85% de toute la mati\u00e8re de l'univers, elle n'interagit pas avec la lumi\u00e8re. Il ne peut \u00eatre vu qu'\u00e0 travers l'influence gravitationnelle qu'elle a sur la\u2026","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/09\/galaxie.jpg?fit=1200%2C720&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/09\/galaxie.jpg?fit=1200%2C720&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/09\/galaxie.jpg?fit=1200%2C720&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/09\/galaxie.jpg?fit=1200%2C720&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/09\/galaxie.jpg?fit=1200%2C720&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":22759,"url":"https:\/\/www.laterredufutur.com\/accueil\/des-astrophysiciens-affirment-que-notre-univers-pourrait-etre-un-beignet-geant-en-3d\/","url_meta":{"origin":11540,"position":1},"title":"Des astrophysiciens affirment que notre univers pourrait \u00eatre un beignet g\u00e9ant en 3D","author":"Admin","date":"20 juillet 2021","format":false,"excerpt":"Imaginez un univers o\u00f9 vous pourriez diriger un vaisseau spatial dans une direction et revenir finalement \u00e0 votre point de d\u00e9part. Si notre Univers \u00e9tait un beignet fini, alors de tels mouvements seraient possibles et les physiciens pourraient potentiellement mesurer sa taille. \"Nous pourrions dire : Maintenant, nous connaissons la\u2026","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/univers-beignet.jpg?fit=1024%2C415&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/univers-beignet.jpg?fit=1024%2C415&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/univers-beignet.jpg?fit=1024%2C415&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/univers-beignet.jpg?fit=1024%2C415&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":16842,"url":"https:\/\/www.laterredufutur.com\/accueil\/un-monde-ou-les-cellules-cerebrales-sont-comme-de-petits-univers\/","url_meta":{"origin":11540,"position":2},"title":"Un monde o\u00f9 les cellules c\u00e9r\u00e9brales sont comme de petits univers","author":"Admin","date":"18 ao\u00fbt 2018","format":false,"excerpt":"Les structures de l'univers et du cerveau humain sont \u00e9tonnamment similaires. Dans la discipline spirituelle orientale du tao\u00efsme, le corps humain a longtemps \u00e9t\u00e9 consid\u00e9r\u00e9 comme un petit univers, comme un microcosme. Alors que des investissements d'un milliard de dollars sont faits aux \u00c9tats-Unis et en Europe pour \u00e9tudier le\u2026","rel":"","context":"Dans &quot;Monde Futur&quot;","block_context":{"text":"Monde Futur","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/monde-futur\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/07\/cellule-univers-1.jpg?fit=900%2C434&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/07\/cellule-univers-1.jpg?fit=900%2C434&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/07\/cellule-univers-1.jpg?fit=900%2C434&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/07\/cellule-univers-1.jpg?fit=900%2C434&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":6021,"url":"https:\/\/www.laterredufutur.com\/accueil\/des-astronomes-ont-decouvert-un-point-froid-large-de-1-8-milliard-dannees-lumieres\/","url_meta":{"origin":11540,"position":3},"title":"Des astronomes ont d\u00e9couvert un point froid large de 1.8 milliard d&rsquo;ann\u00e9es-lumi\u00e8res !","author":"Admin","date":"21 avril 2015","format":false,"excerpt":"En levant la t\u00eate dans l'h\u00e9misph\u00e8re sud, dans la direction de la constellation que l'on a baptis\u00e9e Eridan, il y a un coin d'univers qui rend les astrophysiciens perplexes depuis plus de dix ans. On l'a baptis\u00e9 le \"Point Froid\". Pour comprendre cette d\u00e9nomination, il faut remonter \u00e0 l'origine de\u2026","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/anomalies-univers-avril-2015.png?fit=1090%2C500&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/anomalies-univers-avril-2015.png?fit=1090%2C500&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/anomalies-univers-avril-2015.png?fit=1090%2C500&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/anomalies-univers-avril-2015.png?fit=1090%2C500&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/anomalies-univers-avril-2015.png?fit=1090%2C500&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":27042,"url":"https:\/\/www.laterredufutur.com\/accueil\/la-terre-serait-piegee-a-linterieur-dun-vide-cosmique-immense\/","url_meta":{"origin":11540,"position":4},"title":"La Terre serait pi\u00e9g\u00e9e \u00e0 l&rsquo;int\u00e9rieur d&rsquo;un vide cosmique immense","author":"Admin","date":"11 juillet 2025","format":false,"excerpt":"Une \u00e9tude men\u00e9e par des chercheurs de l'Universit\u00e9 de Portsmouth appuie cette th\u00e9orie qui pourrait contribuer \u00e0 expliquer l'un des plus grands myst\u00e8res de l'astronomie moderne, la tension de Hubble. Une d\u00e9couverte qui pourrait r\u00e9soudre une controverse majeure de la science moderne. D'apr\u00e8s une \u00e9quipe d'astronomes de l'Universit\u00e9 de Portsmouth\u2026","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/05\/Terre-photo-Nasa-espace-7.jpg?fit=1070%2C449&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/05\/Terre-photo-Nasa-espace-7.jpg?fit=1070%2C449&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/05\/Terre-photo-Nasa-espace-7.jpg?fit=1070%2C449&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/05\/Terre-photo-Nasa-espace-7.jpg?fit=1070%2C449&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/05\/Terre-photo-Nasa-espace-7.jpg?fit=1070%2C449&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":26350,"url":"https:\/\/www.laterredufutur.com\/accueil\/les-astronomes-decouvrent-de-vastes-bassins-gravitationnels-dans-lunivers\/","url_meta":{"origin":11540,"position":5},"title":"Les astronomes d\u00e9couvrent de vastes bassins gravitationnels dans l&rsquo;univers","author":"Admin","date":"30 octobre 2024","format":false,"excerpt":"Une nouvelle \u00e9tude met en \u00e9vidence les principales zones gravitationnelles de l'Univers, le grand mur de Sloan \u00e9tant le plus massif, ce qui pourrait modifier notre compr\u00e9hension des structures cosmiques locales. Des chercheurs ont dress\u00e9 la carte des \u00ab bassins d'attraction \u00bb gravitationnelle dans l'Univers local, jetant un nouvel \u00e9clairage\u2026","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/10\/bassins-cosmiques-dans-lunivers.png?fit=1057%2C995&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/10\/bassins-cosmiques-dans-lunivers.png?fit=1057%2C995&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/10\/bassins-cosmiques-dans-lunivers.png?fit=1057%2C995&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/10\/bassins-cosmiques-dans-lunivers.png?fit=1057%2C995&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/10\/bassins-cosmiques-dans-lunivers.png?fit=1057%2C995&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/11540","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/comments?post=11540"}],"version-history":[{"count":3,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/11540\/revisions"}],"predecessor-version":[{"id":11545,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/11540\/revisions\/11545"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/11541"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=11540"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=11540"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=11540"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}