{"id":464382,"date":"2025-10-15T07:52:11","date_gmt":"2025-10-15T07:52:11","guid":{"rendered":"https:\/\/www.europesays.com\/fr\/464382\/"},"modified":"2025-10-15T07:52:11","modified_gmt":"2025-10-15T07:52:11","slug":"le-mystere-de-la-comete-3i-atlas-qui-crache-de-leau-trop-tot-liberation","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/fr\/464382\/","title":{"rendered":"Le myst\u00e8re de la com\u00e8te 3I\/Atlas, qui crache de l\u2019eau trop t\u00f4t \u2013 Lib\u00e9ration"},"content":{"rendered":"

Allons bon, la com\u00e8te venue d\u2019ailleurs semble avoir grandi chez les pompiers. Alors que 3I\/Atlas, en visite dans notre syst\u00e8me solaire depuis cet \u00e9t\u00e9, poursuit actuellement sa route dans le voisinage de Mars, les astronomes ont pu d\u00e9tecter \u00e0 distance qu\u2019elle expulse une sacr\u00e9e quantit\u00e9 d\u2019eau : elle en rel\u00e2che dans l\u2019espace environ 40 kilos par seconde, soit \u00e0 peu pr\u00e8s le d\u00e9bit d\u2019un gros canon \u00e0 incendie. <\/p>\n

Voil\u00e0 maintenant trois mois qu\u2019on a d\u00e9couvert fortuitement l\u2019existence de 3I\/Atlas<\/a>. Tout d\u00e9but juillet, un t\u00e9lescope du projet Atlas install\u00e9 dans les montagnes chiliennes a remarqu\u00e9, dans ses relev\u00e9s automatiques, un nouveau point blanc qui se d\u00e9place dans le ciel nocturne. Il a \u00e9t\u00e9 plac\u00e9 sur une liste de petits astres \u00e0 surveiller, car le but du projet Atlas est de rep\u00e9rer les ast\u00e9ro\u00efdes potentiellement dangereux qui s\u2019approchent de la Terre, et d\u2019autres s\u00e9ances d\u2019observation ont permis de commencer \u00e0 calculer sa trajectoire. <\/p>\n

C\u2019est l\u00e0 qu\u2019on a compris le caract\u00e8re exceptionnel de ce caillou de l\u2019espace. Il ne semblait pas vouloir croiser la Terre de trop pr\u00e8s, heureusement, mais il semblait surtout venir du fond du syst\u00e8me solaire en ligne droite. Cela signifie qu\u2019il n\u2019est p <\/p>\n","protected":false},"excerpt":{"rendered":"Allons bon, la com\u00e8te venue d\u2019ailleurs semble avoir grandi chez les pompiers. Alors que 3I\/Atlas, en visite dans…\n","protected":false},"author":2,"featured_media":464383,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[48,413,1011,27,43,40,41,39,42,44],"class_list":{"0":"post-464382","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-sciences-et-technologies","8":"tag-astronomie","9":"tag-ca-va-mieux-lisant","10":"tag-fr","11":"tag-france","12":"tag-science","13":"tag-science-and-technology","14":"tag-sciences","15":"tag-sciences-et-technologies","16":"tag-technologies","17":"tag-technology"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@fr\/115377100826793957","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/posts\/464382","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=464382"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/posts\/464382\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/media\/464383"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/media?parent=464382"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/categories?post=464382"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/tags?post=464382"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}