{"id":79003,"date":"2026-04-25T12:13:37","date_gmt":"2026-04-25T12:13:37","guid":{"rendered":"https:\/\/www.africa-press.net\/gabon\/politique\/mission-euclid-revele-son-premier-segment-de-carte-universelle"},"modified":"2026-04-25T12:13:37","modified_gmt":"2026-04-25T12:13:37","slug":"mission-euclid-revele-son-premier-segment-de-carte-universelle","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/gabon\/toutes-les-actualites\/mission-euclid-revele-son-premier-segment-de-carte-universelle","title":{"rendered":"Mission Euclid R\u00e9v\u00e8le Son Premier Segment de Carte Universelle"},"content":{"rendered":"<p><span class=\"ap-article-header-tag\">           <strong>Africa-Press &#8211; Gabon. <\/strong>         <\/span>Une immense mosai\u0308que de 208 gigapixels, remplie de 14 millions de galaxies et des dizaines de millions d\u2019e\u0301toiles. Euclid a observe\u0301 le ciel entre le 25 mars et le 8 avril, en compilant 260 observations et couvert une surface e\u0301quivalent a\u0300 500 fois la surface apparente de la Lune.<\/p>\n<p><b>1% de la carte totale<\/b><\/p>\n<p>C\u2019est la premie\u0300re fois qu\u2019une image du ciel aussi grande est produite avec une telle re\u0301solution et, pourtant, ces re\u0301sultats ne repre\u0301sentent que 1% de la future carte totale d\u2019Euclid.<\/p>\n<p>Au cours de sa mission de six ans, le te\u0301lescope observera des milliards de galaxies sur une distance de 10 milliards d\u2019anne\u0301es-lumie\u0300re afin de cre\u0301er la plus grande carte cosmique en 3D jamais re\u0301alise\u0301e.<\/p>\n<p>Mais pourquoi Euclid re\u0301alise cette cartographie? Il recherche le ro\u0302le de composants encore tre\u0300s myste\u0301rieux de notre Univers: la matie\u0300re noire et l\u2019e\u0301nergie noire.<\/p>\n<p><b>Une collaboration de chercheurs dans le monde entier <\/b><\/p>\n<p>Ce projet de\u0301marre\u0301 par l\u2019Agence spatiale europe\u0301enne (ESA) met en collaboration 2600 scientifiques a\u0300 travers 18 pays diffe\u0301rents. Deux astronomes de l\u2019Observatoire des Sciences de l\u2019Univers de Paris-Saclay (CEA) ont contribue\u0301 a\u0300 la re\u0301alisation de ce premier segment publie\u0301 le 15 octobre.<\/p>\n<p>Les came\u0301ras d\u2019Euclid ont pu capturer un grand nombre d\u2019objets dans le de\u0301tail, jusqu\u2019a\u0300 l\u2019inte\u0301rieur des galaxies pour l\u2019image la plus pre\u0301cise.<\/p>\n<p>Lance\u0301e en juillet 2023, la sonde spatiale a de\u0301marre\u0301 ses observations scientifiques en fe\u0301vrier dernier, re\u0301alisant de\u0301ja\u0300 12% de l\u2019e\u0301tude. Une publication est pre\u0301vue pour mars 2025. Mais le public avait de\u0301ja\u0300 eu l\u2019occasion de constater un premier aperc\u0327u de la qualite\u0301 des images d\u2019Euclid en novembre 2023 et en mai 2024.<\/p>\n<p class=\"ap-article-footer-note\">           Retrouvez plus d\u2019actualit\u00e9s et d\u2019analyses sur           <span class=\"ap-highlight-country\">Gabon<\/span>           sur le site           <span class=\"ap-highlight-brand\">Africa Press<\/span>         <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Africa-Press &#8211; Gabon. Une immense mosai\u0308que de 208 gigapixels, remplie de 14 millions de galaxies et des dizaines de millions d\u2019e\u0301toiles. Euclid a observe\u0301 le ciel entre le 25 mars et le 8 avril, en compilant 260 observations et couvert une surface e\u0301quivalent a\u0300 500 fois la surface apparente de la Lune. 1% de la [&hellip;]<\/p>\n","protected":false},"author":82,"featured_media":79002,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[49],"class_list":["post-79003","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-gabon"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.1 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Mission Euclid R\u00e9v\u00e8le Son Premier Segment de Carte Universelle - Gabon<\/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:\/\/www.africa-press.net\/gabon\/politique\/mission-euclid-revele-son-premier-segment-de-carte-universelle\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Mission Euclid R\u00e9v\u00e8le Son Premier Segment de Carte Universelle\" \/>\n<meta property=\"og:description\" content=\"Africa-Press &#8211; Gabon. Une immense mosai\u0308que de 208 gigapixels, remplie de 14 millions de galaxies et des dizaines de millions d\u2019e\u0301toiles. 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