{"id":1167718,"date":"2026-09-04T22:35:16","date_gmt":"2026-09-04T22:35:16","guid":{"rendered":"https:\/\/www.europesays.com\/fr\/1167718\/"},"modified":"2026-09-04T22:35:16","modified_gmt":"2026-09-04T22:35:16","slug":"ca-donne-un-espoir-enorme-une-mysterieuse-particule-de-matiere-noire-pourrait-avoir-ete-detectee-pour-la-premiere-fois","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/fr\/1167718\/","title":{"rendered":"\u00ab\u00c7a donne un espoir \u00e9norme\u00bb\u00a0: une myst\u00e9rieuse particule de mati\u00e8re noire pourrait avoir \u00e9t\u00e9 d\u00e9tect\u00e9e pour la premi\u00e8re fois"},"content":{"rendered":"<p>\n    Un signal intrigant a \u00e9t\u00e9 enregistr\u00e9 dans un d\u00e9tecteur souterrain aux \u00c9tats-Unis, provoquant l\u2019excitation de toute la communaut\u00e9 des physiciens.<\/p>\n<p class=\"fig-paragraph\">La\u00a0<a href=\"http:\/\/www.lefigaro.fr\/sports\/basket\/nba\/basket-wembanyama-felicite-par-le-cea-pour-sa-definition-de-la-matiere-noire-20240513\" target=\"_blank\" data-fig-type=\"NewsFlash\" rel=\"noopener nofollow\" data-gtm-custom-categorie=\"navigation\" data-gtm-custom-action=\"crossclick\" data-gtm-custom-label=\"Contextuel\" data-gtm-event=\"customEventSPE\" data-fig-domain=\"LEFIGARO\">mati\u00e8re noire<\/a>\u00a0est une substance myst\u00e9rieuse qui compose l\u2019essentiel du contenu physique de l\u2019Univers. Les\u00a0<a href=\"http:\/\/www.lefigaro.fr\/international\/sommes-nous-seuls-avi-loeb-l-astrophysicien-de-harvard-qui-veut-croire-aux-extraterrestres-20260522\" target=\"_blank\" data-fig-type=\"Article\" rel=\"noopener nofollow\" data-gtm-custom-categorie=\"navigation\" data-gtm-custom-action=\"crossclick\" data-gtm-custom-label=\"Contextuel\" data-gtm-event=\"customEventSPE\" data-fig-domain=\"LEFIGARO\">astrophysiciens<\/a>\u00a0se sont peu \u00e0 peu convaincus de son existence car, dans leurs mod\u00e8les, rien ne marche sans elle\u00a0: les galaxies ne tournent pas comme il faut, l\u2019Univers n\u2019est pas correctement structur\u00e9,\u00a0etc. Cinq fois plus abondante que la mati\u00e8re classique, sa nature exacte fait depuis longtemps l\u2019objet de nombreuses sp\u00e9culations.<\/p>\n<p class=\"fig-paragraph\">La seule chose que l\u2019on en sait, c\u2019est qu\u2019elle n\u2019interagit que tr\u00e8s peu avec la lumi\u00e8re et la mati\u00e8re classique (c\u2019est pour \u00e7a qu\u2019on ne l\u2019a jamais observ\u00e9e) et ne se manifeste que par ses effets gravitationnels \u00e0 grande \u00e9chelle. Contrairement \u00e0 ce que son nom pourrait laisser penser, elle est donc parfaitement transparente. Et particuli\u00e8rement insaisissable.<\/p>\n<p class=\"fig-paragraph\">C\u2019est la raison pour laquelle l\u2019annonce effectu\u00e9e lors d\u2019une conf\u00e9rence au Japon mardi par les chercheurs de la collaboration LUX-ZEPLIN (LZ), un d\u00e9tecteur au x\u00e9non liquide install\u00e9 dans une ancienne\u2026<\/p>\n<p class=\"fig-premium-paywall__infos\">\n        Cet article est r\u00e9serv\u00e9 aux abonn\u00e9s.        Il vous reste 89% \u00e0 d\u00e9couvrir.\n    <\/p>\n<p>                <img  data- alt=\"Le Figaro\" class=\"fig-img--complete fig-img\"\/><\/p>\n<p class=\"fig-premium-paywall__title\">Vente Flash<\/p>\n<p class=\"fig-premium-paywall__subtitle\">-70% sur votre abonnement. Sans engagement.<\/p>\n<p class=\"fig-premium-paywall__connect\">\n                D\u00e9j\u00e0 abonn\u00e9\u00a0?                <a class=\"fig-premium-paywall__connect-link\" href=\"https:\/\/connect.lefigaro.fr\/login?client=horizon_web&amp;type=main&amp;redirect_uri=https%3A%2F%2Fwww.lefigaro.fr%2Fsciences%2Fca-donne-un-espoir-enorme-une-mysterieuse-particule-de-matiere-noire-pourrait-avoir-ete-detectee-pour-la-premiere-fois-20260904\" data-js-gtm=\"{&quot;event&quot;:&quot;customEventGA4&quot;,&quot;eventName&quot;:&quot;click_action&quot;,&quot;feature&quot;:&quot;paywall&quot;,&quot;location&quot;:&quot;paywall&quot;,&quot;button_action&quot;:&quot;connect&quot;,&quot;click_text&quot;:&quot;Connectez-vous&quot;}\" rel=\"nofollow noopener\" target=\"_blank\"><br \/>\n                    Connectez-vous<br \/>\n                <\/a>\n            <\/p>\n","protected":false},"excerpt":{"rendered":"Un signal intrigant a \u00e9t\u00e9 enregistr\u00e9 dans un d\u00e9tecteur souterrain aux \u00c9tats-Unis, provoquant l\u2019excitation de toute la communaut\u00e9&hellip;\n","protected":false},"author":2,"featured_media":1167719,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_share_on_mastodon":"0"},"categories":[7],"tags":[388,386,1011,27,11088,43,40,41,39,42,44],"class_list":["post-1167718","post","type-post","status-publish","format-standard","has-post-thumbnail","category-sciences-et-technologies","tag-astrophysique","tag-espace","tag-fr","tag-france","tag-physique","tag-science","tag-science-and-technology","tag-sciences","tag-sciences-et-technologies","tag-technologies","tag-technology"],"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@fr\/117215161615869380","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/posts\/1167718","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/comments?post=1167718"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/posts\/1167718\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/media\/1167719"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/media?parent=1167718"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/categories?post=1167718"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/tags?post=1167718"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}