{"id":303515,"date":"2025-08-07T20:06:10","date_gmt":"2025-08-07T20:06:10","guid":{"rendered":"https:\/\/www.europesays.com\/fr\/303515\/"},"modified":"2025-08-07T20:06:10","modified_gmt":"2025-08-07T20:06:10","slug":"le-jour-ou-un-cataclysme-cosmique-soufflera-la-vie-sur-terre","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/fr\/303515\/","title":{"rendered":"Le jour o\u00f9 un cataclysme cosmique soufflera la vie sur Terre"},"content":{"rendered":"<p data-module=\"fig-standfirst-editorial-episode\" data-context=\"@media (min-width:48em)\"><strong>LES INCROYABLES SC\u00c9NARIOS DE LA FIN DU MONDE (1\/6) &#8211; <\/strong>Les \u00e9toiles sont bien loin des paisibles et scintillantes paillettes de lumi\u00e8res qui peuplent notre ciel d\u2019\u00e9t\u00e9\u00a0: partout dans l\u2019univers, elles naissent, meurent et fusionnent. Et si l\u2019une d\u2019entre elles avait l\u2019id\u00e9e de le faire dans notre voisinage, les cons\u00e9quences pour la vie sur Terre seraient dramatiques\u2026<\/p>\n<p class=\"fig-paragraph fig-paragraph--dropped\">Personne ne l\u2019a vu venir. Il a suffi d\u2019une fraction de seconde pour que tout bascule. Un brusque flash de rayons gamma a frapp\u00e9 l\u2019atmosph\u00e8re, faisant instantan\u00e9ment monter la temp\u00e9rature de plusieurs degr\u00e9s sur tout un h\u00e9misph\u00e8re de la Terre. Toute la circulation atmosph\u00e9rique mondiale s\u2019en est aussit\u00f4t trouv\u00e9e boulevers\u00e9e, d\u00e9clenchant des \u00e9v\u00e9nements m\u00e9t\u00e9orologiques exceptionnels. Du jour au lendemain, l\u2019humanit\u00e9 a \u00e9t\u00e9 confront\u00e9e aux cons\u00e9quences qu\u2019elle attendait du\u00a0<a href=\"http:\/\/www.lefigaro.fr\/sciences\/dossier\/lutte-rechauffement-climatique-planete-climat-changements-menace-oceans-transports-pollution-energie\" target=\"_blank\" data-fig-type=\"Topic\" 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\">r\u00e9chauffement climatique<\/a>, mais qu\u2019elle imaginait se d\u00e9rouler au fil de plusieurs si\u00e8cles.<\/p>\n<p class=\"fig-paragraph fig-paragraph--dropped\">\u00c0 cela s\u2019est ajout\u00e9e la disparition de la\u00a0<a href=\"http:\/\/www.lefigaro.fr\/sciences\/le-grand-retour-du-trou-dans-la-couche-d-ozone-20231207\" 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\">couche d\u2019ozone\u00a0<\/a>: en ionisant la haute atmosph\u00e8re, les rayons gamma ont provoqu\u00e9 la formation d\u2019oxydes d\u2019azotes qui ont d\u00e9truit les mol\u00e9cules d\u2019ozone. Toute la vie sur Terre s\u2019est retrouv\u00e9e directement expos\u00e9e au rayonnement UV du Soleil et \u00e0 ses effets destructeurs sur l\u2019ADN. Seules les esp\u00e8ces sous-marines ont \u00e9t\u00e9 \u00e9pargn\u00e9es, mais la mort du phytoplancton en surface a tout de m\u00eame boulevers\u00e9 la cha\u00eene trophique. L\u2019humanit\u00e9 a d\u00fb se r\u00e9fugier sous terre et se r\u00e9soudre \u00e0 vivre la nuit. Plus de 90\u00a0% des esp\u00e8ces n\u2019ont pas eu le temps de s\u2019adapter et ont disparu.<\/p>\n<p class=\"fig-paragraph fig-paragraph--dropped\">\u00c0 l\u2019origine de la catastrophe, un \u00e9v\u00e9nement astronomique extr\u00eamement rare\u2026<\/p>\n<p class=\"fig-premium-paywall__infos\">\n        Cet article est r\u00e9serv\u00e9 aux abonn\u00e9s.        Il vous reste 78% \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\">Vous avez envie de lire la suite ?<\/p>\n<p class=\"fig-premium-paywall__subtitle\">D\u00e9bloquez tous les articles imm\u00e9diatement.<\/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%2Fle-jour-ou-un-cataclysme-cosmique-soufflera-la-vie-sur-terre-20250807\" data-js-gtm=\"{&quot;customCategorie&quot;: &quot;conversion&quot;, &quot;customAction&quot;: &quot;before_Landing_Connexion_paywall_manuel&quot;, &quot;customLabel&quot;: &quot;bGVmaWdhcm8uZnJfXzFmMDU2NTJlLWY0NmItNjUzOC1hNTVmLWFiYWM5ODgzMTk0Yl9fQXJ0aWNsZQ==_Le jour o\u00f9 un cataclysme cosmique soufflera la vie sur Terre_74&quot;, &quot;customIDSPE&quot;: &quot;bGVmaWdhcm8uZnJfXzFmMDU2NTJlLWY0NmItNjUzOC1hNTVmLWFiYWM5ODgzMTk0Yl9fQXJ0aWNsZQ==&quot;, &quot;event&quot;: &quot;customEventSPE&quot;}\" rel=\"nofollow noopener\" target=\"_blank\"><br \/>\n                    Connectez-vous<br \/>\n                <\/a>\n            <\/p>\n","protected":false},"excerpt":{"rendered":"LES INCROYABLES SC\u00c9NARIOS DE LA FIN DU MONDE (1\/6) &#8211; Les \u00e9toiles sont bien loin des paisibles et&hellip;\n","protected":false},"author":2,"featured_media":303516,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[48,434,44352,1011,27,43,40,41,39,42,44],"class_list":{"0":"post-303515","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-epidemie","10":"tag-extinctions","11":"tag-fr","12":"tag-france","13":"tag-science","14":"tag-science-and-technology","15":"tag-sciences","16":"tag-sciences-et-technologies","17":"tag-technologies","18":"tag-technology"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@fr\/114989287563047869","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/posts\/303515","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=303515"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/posts\/303515\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/media\/303516"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/media?parent=303515"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/categories?post=303515"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/tags?post=303515"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}