{"id":29906,"date":"2026-09-07T08:00:26","date_gmt":"2026-09-07T06:00:26","guid":{"rendered":"https:\/\/www.laterredufutur.com\/accueil\/?p=29906"},"modified":"2026-09-07T08:01:21","modified_gmt":"2026-09-07T06:01:21","slug":"venus-ce-monde-infernal-aurait-autrefois-abrite-des-oceans-sur-90-de-sa-surface-chaude-et-aride","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/venus-ce-monde-infernal-aurait-autrefois-abrite-des-oceans-sur-90-de-sa-surface-chaude-et-aride\/","title":{"rendered":"V\u00e9nus, ce monde infernal, aurait autrefois abrit\u00e9 des oc\u00e9ans sur 90 % de sa surface chaude et aride"},"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>Il est difficile d&rsquo;imaginer deux mondes plus semblables et pourtant plus diff\u00e9rents que la Terre et V\u00e9nus .<\/p>\n<p>Notre propre monde est luxuriant, humide et vibrant, grouillant de vie et d&rsquo;activit\u00e9 g\u00e9ologique.<\/p>\n<p>V\u00e9nus, en revanche, est comme une jumelle mal\u00e9fique.<\/p>\n<p>Elle partage du m\u00eame ADN que la Terre \u2013 les deux mondes ont plus ou moins la m\u00eame taille, la m\u00eame densit\u00e9 et la m\u00eame composition min\u00e9rale \u2013 mais elle n\u2019a pas d\u2019eau liquide en surface, des temp\u00e9ratures ambiantes suffisamment \u00e9lev\u00e9es pour faire fondre le plomb, une pression atmosph\u00e9rique \u00e9crasante et des nuages \u200b\u200bsuffocants de dioxyde de carbone qui d\u00e9versent de l\u2019acide sulfurique.<\/p>\n<figure id=\"attachment_29912\" aria-describedby=\"caption-attachment-29912\" style=\"width: 642px\" class=\"wp-caption aligncenter\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"29912\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/venus-ce-monde-infernal-aurait-autrefois-abrite-des-oceans-sur-90-de-sa-surface-chaude-et-aride\/venus-planete\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/Venus-planete.webp?fit=642%2C642&amp;ssl=1\" data-orig-size=\"642,642\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;,&quot;alt&quot;:&quot;&quot;}\" data-image-title=\"V\u00e9nus planete\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/Venus-planete.webp?fit=642%2C642&amp;ssl=1\" class=\"wp-image-29912 size-full\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/Venus-planete.webp?resize=642%2C642&#038;ssl=1\" alt=\"\" width=\"642\" height=\"642\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/Venus-planete.webp?w=642&amp;ssl=1 642w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/Venus-planete.webp?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/Venus-planete.webp?resize=60%2C60&amp;ssl=1 60w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/Venus-planete.webp?resize=144%2C144&amp;ssl=1 144w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/Venus-planete.webp?resize=480%2C480&amp;ssl=1 480w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/Venus-planete.webp?resize=100%2C100&amp;ssl=1 100w\" sizes=\"auto, (max-width: 642px) 100vw, 642px\" \/><figcaption id=\"caption-attachment-29912\" class=\"wp-caption-text\"><em>V\u00e9nus photographi\u00e9e par la sonde Mariner 10 de la NASA en 1974. (&nbsp;NASA&nbsp;)<\/em><\/figcaption><\/figure>\n<p>Les scientifiques se demandent depuis longtemps si V\u00e9nus a toujours \u00e9t\u00e9 aussi hostile.<\/p>\n<p>Alors que certains mod\u00e8les sugg\u00e8rent que notre plan\u00e8te voisine a pu \u00eatre autrefois recouverte d&rsquo;oc\u00e9ans, d&rsquo;autres affirment que toute trace d&rsquo;eau a disparu si t\u00f4t qu&rsquo;il n&rsquo;en reste aucune trace aujourd&rsquo;hui.<\/p>\n<p>Une nouvelle \u00e9tude&nbsp;publi\u00e9e dans Earth &amp; Planetary Science Letters&nbsp;sugg\u00e8re que la surface de V\u00e9nus pourrait encore porter les traces g\u00e9ologiques de ces mers disparues depuis longtemps.<\/p>\n<p>\u00ab Bien que l\u2019interpr\u00e9tation de ces caract\u00e9ristiques ne soit pas univoque \u00bb,&nbsp;\u00e9crit une \u00e9quipe&nbsp;dirig\u00e9e par le g\u00e9ologue Richard Ghail de l\u2019Universit\u00e9 de Londres au Royaume-Uni, \u00ab il existe des arguments convaincants selon lesquels V\u00e9nus a autrefois abrit\u00e9 des oc\u00e9ans, et peut-\u00eatre la vie, sur la majeure partie de sa surface. \u00bb<\/p>\n<p>La surface de V\u00e9nus est difficilement visible \u00e0 travers son \u00e9paisse couche de nuages. La plupart des donn\u00e9es disponibles aujourd&rsquo;hui proviennent de la sonde Magellan de la NASA, qui a cartographi\u00e9 la surface de V\u00e9nus depuis son orbite plan\u00e9taire pendant plusieurs ann\u00e9es au d\u00e9but des ann\u00e9es 1990 gr\u00e2ce \u00e0 des radars.<\/p>\n<p>Ces images ont r\u00e9v\u00e9l\u00e9 un paysage accident\u00e9 fa\u00e7onn\u00e9 par le volcanisme \u2013 que&nbsp;V\u00e9nus soit un monde volcanique ne fait aucun doute&nbsp;, avec plus de 85 000 formations volcaniques identifi\u00e9es \u00e0 ce jour.<\/p>\n<p>Ghail et ses coll\u00e8gues se demandaient si certaines de ces formations suppos\u00e9ment volcaniques pouvaient en r\u00e9alit\u00e9 \u00eatre d&rsquo;origine marine.<\/p>\n<p>Si tel est le cas, les oc\u00e9ans qu&rsquo;ils ont laiss\u00e9s derri\u00e8re eux auraient \u00e9t\u00e9 immenses. Les chercheurs estiment que l&rsquo;eau recouvrait autrefois environ 90 % de la surface de V\u00e9nus, contenant environ 40 % de la quantit\u00e9 d&rsquo;eau des oc\u00e9ans terrestres.<\/p>\n<p>Ils affirment que trois types de caract\u00e9ristiques g\u00e9ologiques sont plus logiques dans le contexte de ces mers disparues.<\/p>\n<p>Les premiers sont de vastes terrains sillonn\u00e9s de gigantesques motifs polygonaux.<\/p>\n<figure id=\"attachment_29913\" aria-describedby=\"caption-attachment-29913\" style=\"width: 642px\" class=\"wp-caption aligncenter\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"29913\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/venus-ce-monde-infernal-aurait-autrefois-abrite-des-oceans-sur-90-de-sa-surface-chaude-et-aride\/venus-polygons\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/venus-polygons.jpg?fit=642%2C610&amp;ssl=1\" data-orig-size=\"642,610\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;,&quot;alt&quot;:&quot;&quot;}\" data-image-title=\"venus-polygons\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/venus-polygons.jpg?fit=642%2C610&amp;ssl=1\" class=\"wp-image-29913 size-full\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/venus-polygons.jpg?resize=642%2C610&#038;ssl=1\" alt=\"\" width=\"642\" height=\"610\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/venus-polygons.jpg?w=642&amp;ssl=1 642w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/venus-polygons.jpg?resize=300%2C285&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/venus-polygons.jpg?resize=63%2C60&amp;ssl=1 63w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/venus-polygons.jpg?resize=480%2C456&amp;ssl=1 480w\" sizes=\"auto, (max-width: 642px) 100vw, 642px\" \/><figcaption id=\"caption-attachment-29913\" class=\"wp-caption-text\"><em>Certains polygones \u00e0 la surface de V\u00e9nus, dont tous ne s&rsquo;expliquent pas facilement par des processus volcaniques. (Ghail et al.,&nbsp;Earth Planet. Sci. Lett.&nbsp;, 2026)<\/em><\/figcaption><\/figure>\n<p>Des \u00e9tudes ant\u00e9rieures avaient sugg\u00e9r\u00e9 que ces fractures s&rsquo;\u00e9taient form\u00e9es lorsque la roche volcanique s&rsquo;\u00e9tait refroidie et contract\u00e9e.<\/p>\n<p>Ghail et ses coll\u00e8gues affirment qu&rsquo;elles ressemblent davantage aux syst\u00e8mes de failles polygonales que l&rsquo;on trouve dans les s\u00e9diments marins riches en argile sur Terre.<\/p>\n<p>Ces r\u00e9seaux de fractures se forment lorsque d&rsquo;\u00e9paisses couches de vase du fond marin sont enfouies et compact\u00e9es, absorbant l&rsquo;eau comme une \u00e9ponge. \u00c0 mesure que les s\u00e9diments se r\u00e9tractent et se d\u00e9posent, ils peuvent former des motifs polygonaux s&rsquo;\u00e9tendant sur des kilom\u00e8tres.<\/p>\n<p>Le deuxi\u00e8me indice r\u00e9side dans d&rsquo;\u00e9normes canaux appel\u00e9s&nbsp;canali&nbsp;.<\/p>\n<p>Pendant des d\u00e9cennies, on a g\u00e9n\u00e9ralement interpr\u00e9t\u00e9 ces formations comme des chenaux de lave. Mais cette explication n&rsquo;est pas sans poser probl\u00e8me. Certains de ces chenaux s&rsquo;\u00e9tendent sur des milliers de kilom\u00e8tres, bien au-del\u00e0 de ce que de nombreux chercheurs estiment plausible pour la lave.<\/p>\n<p>Les chercheurs avancent l&rsquo;hypoth\u00e8se que nombre de ces chenaux ressemblent plut\u00f4t \u00e0 des chenaux sous-marins terrestres, creus\u00e9s par des courants denses circulant sous la surface de l&rsquo;oc\u00e9an.<\/p>\n<p>Ils notent que pr\u00e8s d&rsquo;un tiers des terrains polygonaux sont associ\u00e9s \u00e0&nbsp;des canaux&nbsp;qui semblent \u00e9merger des plaines sans source volcanique \u00e9vidente, avant de se terminer dans des bassins plus profonds \u2013 comme on pourrait s&rsquo;y attendre pour des chenaux sous-marins.<\/p>\n<figure id=\"attachment_29914\" aria-describedby=\"caption-attachment-29914\" style=\"width: 642px\" class=\"wp-caption aligncenter\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"29914\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/venus-ce-monde-infernal-aurait-autrefois-abrite-des-oceans-sur-90-de-sa-surface-chaude-et-aride\/venus-marine\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/Venus-marine.jpg?fit=642%2C457&amp;ssl=1\" data-orig-size=\"642,457\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;,&quot;alt&quot;:&quot;&quot;}\" data-image-title=\"Venus marine\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/Venus-marine.jpg?fit=642%2C457&amp;ssl=1\" class=\"wp-image-29914 size-full\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/Venus-marine.jpg?resize=642%2C457&#038;ssl=1\" alt=\"\" width=\"642\" height=\"457\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/Venus-marine.jpg?w=642&amp;ssl=1 642w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/Venus-marine.jpg?resize=300%2C214&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/Venus-marine.jpg?resize=80%2C57&amp;ssl=1 80w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/Venus-marine.jpg?resize=480%2C342&amp;ssl=1 480w\" sizes=\"auto, (max-width: 642px) 100vw, 642px\" \/><figcaption id=\"caption-attachment-29914\" class=\"wp-caption-text\"><em>Caract\u00e9ristiques compatibles avec les processus de formation marine. (Ghail et al.,&nbsp;Earth Planet. Sci. Lett.&nbsp;, 2026)<\/em><\/figcaption><\/figure>\n<p>Enfin, le troisi\u00e8me indice provient des rides qui structurent les basses terres de V\u00e9nus.<\/p>\n<p>Selon l&rsquo;\u00e9quipe, ces cr\u00eates pourraient recouvrir d&rsquo;\u00e9paisses couches de sel laiss\u00e9es par l&rsquo;\u00e9vaporation d&rsquo;anciens oc\u00e9ans.<\/p>\n<p>Ils notent que la mer M\u00e9diterran\u00e9e terrestre a d\u00e9pos\u00e9 d&rsquo;immenses couches de sel lorsqu&rsquo;elle s&rsquo;est largement ass\u00e9ch\u00e9e lors de la&nbsp;crise de salinit\u00e9 messinienne,&nbsp;il y a environ 5,5 millions d&rsquo;ann\u00e9es. V\u00e9nus, estiment-ils, aurait pu produire une couche de sel d&rsquo;au moins 64 m\u00e8tres d&rsquo;\u00e9paisseur \u2013 voire plus \u2013 suffisante pour d\u00e9former la cro\u00fbte sus-jacente.<\/p>\n<p>C&rsquo;est une hypoth\u00e8se fascinante, mais qui restera probablement controvers\u00e9e jusqu&rsquo;\u00e0 l&rsquo;arriv\u00e9e de nouveaux engins spatiaux pour \u00e9tudier V\u00e9nus, qui a \u00e9t\u00e9 quelque peu n\u00e9glig\u00e9e ces derniers temps par les programmes d&rsquo;exploration spatiale.<\/p>\n<p>Cependant,&nbsp;la mission EnVision&nbsp;de l&rsquo;ESA et&nbsp;l&rsquo;orbiteur VERITAS&nbsp;de la NASA , qui devraient tous deux cartographier V\u00e9nus avec beaucoup plus de d\u00e9tails que Magellan, pourraient aider \u00e0 v\u00e9rifier si ces caract\u00e9ristiques conservent r\u00e9ellement des preuves d&rsquo;anciens oc\u00e9ans.<\/p>\n<p>Aucun de ces trois \u00e9l\u00e9ments de preuve n&rsquo;est concluant \u00e0 lui seul. Chacun pourrait, en principe, s&rsquo;expliquer par l&rsquo;activit\u00e9 volcanique, les processus tectoniques ou d&rsquo;autres aspects de l&rsquo;histoire g\u00e9ologique de V\u00e9nus.<\/p>\n<figure id=\"attachment_29910\" aria-describedby=\"caption-attachment-29910\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"29910\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/venus-ce-monde-infernal-aurait-autrefois-abrite-des-oceans-sur-90-de-sa-surface-chaude-et-aride\/venus-5\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/venus.webp?fit=600%2C338&amp;ssl=1\" data-orig-size=\"600,338\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;,&quot;alt&quot;:&quot;&quot;}\" data-image-title=\"venus\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/venus.webp?fit=600%2C338&amp;ssl=1\" class=\"wp-image-29910 size-full\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/venus.webp?resize=600%2C338&#038;ssl=1\" alt=\"\" width=\"600\" height=\"338\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/venus.webp?w=600&amp;ssl=1 600w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/venus.webp?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/venus.webp?resize=80%2C45&amp;ssl=1 80w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/venus.webp?resize=480%2C270&amp;ssl=1 480w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-29910\" class=\"wp-caption-text\"><em>Vue d&rsquo;ensemble de V\u00e9nus r\u00e9alis\u00e9e \u00e0 partir des donn\u00e9es radar de la sonde Magellan. Les couleurs artificielles sont bas\u00e9es sur les images transmises par les atterrisseurs sovi\u00e9tiques Venera 13 et 14.&nbsp;(NASA\/JPL)<\/em><\/figcaption><\/figure>\n<p>Pris ensemble, ces \u00e9l\u00e9ments, selon les chercheurs, dressent un tableau convaincant d&rsquo;un monde qui abritait autrefois des oc\u00e9ans avant de succomber \u00e0 un emballement de l&rsquo;effet de serre il y a moins d&rsquo;un milliard d&rsquo;ann\u00e9es.<\/p>\n<p>\u00ab Sur Terre, la vie \u00e9tait d\u00e9j\u00e0 bien \u00e9tablie \u00e0 cette \u00e9poque ; la possibilit\u00e9 qu\u2019un emballement de l\u2019effet de serre l\u2019ait \u00e9radiqu\u00e9e sur V\u00e9nus a des implications profondes pour notre propre avenir et pour la vie en dehors du syst\u00e8me solaire \u00bb,&nbsp;\u00e9crivent les chercheurs&nbsp;.<\/p>\n<p>L&rsquo;article a \u00e9t\u00e9 publi\u00e9 dans la revue Earth &amp; Planetary Science Letters.<\/p>\n<p>Adaptation Terra Projects<\/p>\n<p>Sources :<br \/>\n<a href=\"https:\/\/doi.org\/10.1016\/j.epsl.2026.120255\" target=\"_blank\" rel=\"noopener\">https:\/\/doi.org\/<\/a> \/<br \/>\n<a href=\"https:\/\/www.sciencealert.com\/hell-world-venus-may-have-once-had-oceans-across-90-of-its-hot-dry-surface\" target=\"_blank\" rel=\"noopener\">https:\/\/www.sciencealert.com\/<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"29906\">(5)<\/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>Il est difficile d&rsquo;imaginer deux mondes plus semblables et pourtant plus diff\u00e9rents que la Terre et V\u00e9nus . Notre propre&#8230;<\/p>\n","protected":false},"author":1,"featured_media":29910,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"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_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","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":[333,121,363,1629,308],"class_list":["post-29906","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-espace","tag-eau","tag-planete","tag-systeme-solaire","tag-venus","tag-vie","wpcat-22-id"],"jetpack_publicize_connections":[],"jetpack_shortlink":"https:\/\/wp.me\/p631RN-7Mm","jetpack-related-posts":[{"id":24794,"url":"https:\/\/www.laterredufutur.com\/accueil\/les-oceans-ont-tres-probablement-borde-venus-avant-quelle-ne-devienne-un-enfer\/","url_meta":{"origin":29906,"position":0},"title":"Les oc\u00e9ans ont tr\u00e8s probablement bord\u00e9 V\u00e9nus avant qu&rsquo;elle ne devienne un enfer","author":"Admin","date":"13 mars 2023","format":false,"excerpt":"V\u00e9nus est peut-\u00eatre l'un des objets les plus brillants et les plus beaux de notre ciel nocturne, mais il ne faut pas s'y tromper. Notre plan\u00e8te voisine est extr\u00eamement inhospitali\u00e8re par rapport \u00e0 la vie telle que nous la connaissons. C'est un monde toxique et br\u00fblant sur lequel les humains\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\/11\/venus-terraformee-5.jpg?fit=960%2C540&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/11\/venus-terraformee-5.jpg?fit=960%2C540&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/11\/venus-terraformee-5.jpg?fit=960%2C540&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/11\/venus-terraformee-5.jpg?fit=960%2C540&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":21607,"url":"https:\/\/www.laterredufutur.com\/accueil\/de-la-planete-venus-primitive-habitable-a-sa-terraformation\/","url_meta":{"origin":29906,"position":1},"title":"De la plan\u00e8te V\u00e9nus primitive habitable \u00e0 sa terraformation","author":"Admin","date":"24 novembre 2020","format":false,"excerpt":"La Terre et V\u00e9nus sont des plan\u00e8tes \u00ab s\u0153urs \u00bb et pourtant, elles ont \u00e9volu\u00e9 tr\u00e8s diff\u00e9remment, l'une des deux \u00e9tant devenue un enfer volcanique et d\u00e9pourvue d'oc\u00e9ans. La Nasa envisage une nouvelle mission \u00e0 destination de V\u00e9nus pour tenter de mieux comprendre l'origine de ces diff\u00e9rences et si des\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\/11\/venus-habitable.jpg?fit=1176%2C1200&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/11\/venus-habitable.jpg?fit=1176%2C1200&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/11\/venus-habitable.jpg?fit=1176%2C1200&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/11\/venus-habitable.jpg?fit=1176%2C1200&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/11\/venus-habitable.jpg?fit=1176%2C1200&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":19695,"url":"https:\/\/www.laterredufutur.com\/accueil\/venus-a-pu-etre-habitable-jusqua-une-mysterieuse-catastrophe-il-y-a-des-millions-dannees\/","url_meta":{"origin":29906,"position":2},"title":"V\u00e9nus a pu \u00eatre habitable jusqu&rsquo;\u00e0 une myst\u00e9rieuse catastrophe il y a des millions d&rsquo;ann\u00e9es","author":"Admin","date":"15 octobre 2019","format":false,"excerpt":"V\u00e9nus n'est pas une plan\u00e8te des plus agr\u00e9able. De ce monde nomm\u00e9 d'apr\u00e8s une d\u00e9esse romaine de l'amour et de la beaut\u00e9, c'est vraiment l'enfer toxique et surchauff\u00e9. Mais \u00e7a n'a pas toujours \u00e9t\u00e9 comme \u00e7a. Dans une nouvelle \u00e9tude, les scientifiques d\u00e9montrent comment V\u00e9nus aurait pu autrefois poss\u00e9der 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\/2019\/05\/ancienne-venus.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\/2019\/05\/ancienne-venus.jpg?fit=1200%2C720&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/05\/ancienne-venus.jpg?fit=1200%2C720&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/05\/ancienne-venus.jpg?fit=1200%2C720&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/05\/ancienne-venus.jpg?fit=1200%2C720&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":2726,"url":"https:\/\/www.laterredufutur.com\/accueil\/venus-devoilee\/","url_meta":{"origin":29906,"position":3},"title":"V\u00e9nus d\u00e9voil\u00e9e","author":"Admin","date":"4 mars 2005","format":false,"excerpt":"Voici V\u00e9nus dans toute sa plendeur que vous pourrez\u00a0t\u00e9l\u00e9charger ci apr\u00e8s. L'atmosph\u00e8re de V\u00e9nus chauffe \u00e0 plus de 480\u00b0 et poss\u00e8de une superbe couche d'acide sulfurique. La vie est impossible et personne ne l'a jamais observ\u00e9e r\u00e9ellement.La plan\u00e8te V\u00e9nus, le joyau du ciel, \u00e9tait connue des anciens astronomes sous les\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\/astronomie-venus.jpg?fit=1024%2C768&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/09\/astronomie-venus.jpg?fit=1024%2C768&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/09\/astronomie-venus.jpg?fit=1024%2C768&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/09\/astronomie-venus.jpg?fit=1024%2C768&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":25919,"url":"https:\/\/www.laterredufutur.com\/accueil\/un-monde-potentiellement-habitable-de-la-taille-de-la-terre-decouvert-a-40-annees-lumiere\/","url_meta":{"origin":29906,"position":4},"title":"Un monde potentiellement habitable de la taille de la Terre d\u00e9couvert \u00e0 40 ann\u00e9es-lumi\u00e8re","author":"Admin","date":"27 mai 2024","format":false,"excerpt":"Une plan\u00e8te qui ressemble \u00e0 s'y m\u00e9prendre \u00e0 la Terre vient d'\u00eatre d\u00e9couverte en orbite autour d'une \u00e9toile situ\u00e9e \u00e0 seulement 40 ann\u00e9es-lumi\u00e8re du syst\u00e8me solaire. Cette exoplan\u00e8te a un rayon tr\u00e8s similaire \u00e0 celui de notre plan\u00e8te, ce qui laisse supposer une composition rocheuse similaire. Il est int\u00e9ressant 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\/2024\/05\/Gliese-12-exoplanete.jpg?fit=642%2C361&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/Gliese-12-exoplanete.jpg?fit=642%2C361&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/Gliese-12-exoplanete.jpg?fit=642%2C361&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":19223,"url":"https:\/\/www.laterredufutur.com\/accueil\/venus-aurait-pu-etre-habitable-mais-un-grand-ocean-a-ralenti-sa-rotation\/","url_meta":{"origin":29906,"position":5},"title":"V\u00e9nus aurait pu \u00eatre habitable, mais un grand oc\u00e9an a ralenti sa rotation","author":"Admin","date":"5 juillet 2019","format":false,"excerpt":"V\u00e9nus est un endroit infernal ! C'est la plan\u00e8te la plus chaude du syst\u00e8me solaire, avec des temp\u00e9ratures atmosph\u00e9riques suffisamment \u00e9lev\u00e9es pour faire fondre le plomb. L'air est \u00e9galement un panache toxique, compos\u00e9 principalement de nuages \u200b\u200bde pluie de dioxyde de carbone et d'acide sulfurique. Et pourtant, les scientifiques pensent\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\/2019\/05\/ancienne-venus.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\/2019\/05\/ancienne-venus.jpg?fit=1200%2C720&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/05\/ancienne-venus.jpg?fit=1200%2C720&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/05\/ancienne-venus.jpg?fit=1200%2C720&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/05\/ancienne-venus.jpg?fit=1200%2C720&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/09\/venus.webp?fit=600%2C338&ssl=1","_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/29906","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=29906"}],"version-history":[{"count":6,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/29906\/revisions"}],"predecessor-version":[{"id":29916,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/29906\/revisions\/29916"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/29910"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=29906"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=29906"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=29906"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}