{"id":25442,"date":"2023-12-20T12:00:23","date_gmt":"2023-12-20T11:00:23","guid":{"rendered":"https:\/\/www.laterredufutur.com\/accueil\/?p=25442"},"modified":"2023-12-18T08:50:32","modified_gmt":"2023-12-18T07:50:32","slug":"des-molecules-organiques-fascinantes-ont-ete-detectees-dans-leruption-dencelade","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/des-molecules-organiques-fascinantes-ont-ete-detectees-dans-leruption-dencelade\/","title":{"rendered":"Des mol\u00e9cules organiques fascinantes ont \u00e9t\u00e9 d\u00e9tect\u00e9es dans l&rsquo;\u00e9ruption d&rsquo;Encelade"},"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>La lune de Saturne, Encelade, ne ressemble pas \u00e0 grand-chose. Elle est plut\u00f4t monochrome et petite, p\u00e2lissant en comparaison des anneaux voyants et de l&rsquo;hexagone g\u00e9ant de Saturne.<\/p>\n<p>Mais, comme le montrent de nombreux objets du syst\u00e8me solaire, les apparences peuvent \u00eatre tr\u00e8s trompeuses. Encelade a bien plus \u00e0 offrir que ce qu&rsquo;un premier coup d&rsquo;\u0153il pourrait laisser supposer. Une nouvelle analyse sugg\u00e8re que le monde de glace abrite beaucoup plus de mol\u00e9cules organiques que ne le laissaient supposer les r\u00e9sultats pr\u00e9c\u00e9dents.<\/p>\n<p>Un examen plus approfondi des donn\u00e9es fournies par la sonde Cassini de Saturne a r\u00e9v\u00e9l\u00e9 qu&rsquo;Encelade crache des mol\u00e9cules telles que le m\u00e9thanol, l&rsquo;\u00e9thane et l&rsquo;oxyg\u00e8ne mol\u00e9culaire \u00e0 partir de geysers provenant de l&rsquo;eau liquide qui se trouve dans les profondeurs de sa coquille gel\u00e9e.<\/p>\n<p>Cette d\u00e9couverte renforce l&rsquo;id\u00e9e que la lune pourrait abriter une sorte de biochimie, voire des communaut\u00e9s de microbes, dans son oc\u00e9an global, ce qui renforce les appels \u00e0 l&rsquo;envoi d&rsquo;une mission d\u00e9di\u00e9e \u00e0 Encelade dans l&rsquo;espoir de trouver enfin de la vie extraterrestre.<\/p>\n<p>\u00ab\u00a0Les r\u00e9sultats pr\u00e9sent\u00e9s ici indiquent qu&rsquo;Encelade abrite un environnement chimique multiphasique et diversifi\u00e9 en termes de composition, compatible avec un oc\u00e9an souterrain habitable\u00a0\u00bb, \u00e9crit une \u00e9quipe dirig\u00e9e par l&rsquo;astrobiologiste Jonah Peter, de l&rsquo;universit\u00e9 Harvard et du Jet Propulsion Laboratory de la NASA.<\/p>\n<figure id=\"attachment_24431\" aria-describedby=\"caption-attachment-24431\" style=\"width: 1200px\" class=\"wp-caption alignnone\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"24431\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/encelade-possede-les-six-elements-essentiels-a-la-vie\/encelade-6\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/09\/Encelade-1.jpg?fit=1200%2C675&amp;ssl=1\" data-orig-size=\"1200,675\" data-comments-opened=\"1\" 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;1&quot;}\" data-image-title=\"Encelade\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;Une illustration d&amp;rsquo;artiste montre Cassini traversant un panache provenant d&amp;rsquo;Encelade, une lune de Saturne.&lt;br \/&gt;\nNASA&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/09\/Encelade-1.jpg?fit=800%2C450&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/09\/Encelade-1.jpg?resize=1200%2C675&#038;ssl=1\" alt=\"\" width=\"1200\" height=\"675\" class=\"size-full wp-image-24431\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/09\/Encelade-1.jpg?w=1200&amp;ssl=1 1200w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/09\/Encelade-1.jpg?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/09\/Encelade-1.jpg?resize=800%2C450&amp;ssl=1 800w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/09\/Encelade-1.jpg?resize=768%2C432&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/09\/Encelade-1.jpg?resize=580%2C326&amp;ssl=1 580w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/09\/Encelade-1.jpg?resize=174%2C98&amp;ssl=1 174w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption id=\"caption-attachment-24431\" class=\"wp-caption-text\">Une illustration d&rsquo;artiste montre Cassini traversant un panache provenant d&rsquo;Encelade, une lune de Saturne.<br \/>NASA<\/figcaption><\/figure>\n<p>La plupart de nos connaissances sur Encelade proviennent de la mission Cassini, qui a explor\u00e9 Saturne et ses satellites de 2004 \u00e0 2017. Avant cette p\u00e9riode, nous ne savions pas grand-chose de cette petite lune gel\u00e9e, mais la sonde a d\u00e9tect\u00e9 et travers\u00e9 des panaches de brume jaillissant de fissures dans la surface glac\u00e9e d&rsquo;Encelade, r\u00e9v\u00e9lant ainsi la pr\u00e9sence d&rsquo;un oc\u00e9an liquide qui s&rsquo;agite sous la surface.<\/p>\n<p>L&rsquo;analyse ult\u00e9rieure des donn\u00e9es recueillies par le spectrom\u00e8tre de masse ionique et neutre (INMS) de Cassini a r\u00e9v\u00e9l\u00e9 la pr\u00e9sence de mol\u00e9cules organiques dans ces panaches : eau, dioxyde de carbone, m\u00e9thane, ammoniac et hydrog\u00e8ne mol\u00e9culaire.<\/p>\n<p>Mais l&rsquo;INMS a une faible r\u00e9solution de masse, ce qui rend difficile l&rsquo;identification des esp\u00e8ces les moins abondantes, car il existe un large \u00e9ventail de combinaisons possibles qui pourraient correspondre aux donn\u00e9es. Le profil complet de la composition des panaches est donc rest\u00e9 une question ouverte.<\/p><div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"2\" 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\n<p>Peter et ses coll\u00e8gues, le plan\u00e9tologue Tom Nordheim et l&rsquo;astrobiologiste Kevin Hand du Jet Propulsion Laboratory, ont \u00e0 nouveau examin\u00e9 les donn\u00e9es de l&rsquo;IMNS. Ils ont utilis\u00e9 la mod\u00e9lisation statistique pour comparer les donn\u00e9es \u00e0 une vaste biblioth\u00e8que de spectres de masse connus afin d&rsquo;identifier ce qui pourrait produire les sch\u00e9mas observ\u00e9s dans les donn\u00e9es de Cassini.<\/p>\n<p>Leurs r\u00e9sultats ont confirm\u00e9 les d\u00e9couvertes ant\u00e9rieures tout en r\u00e9v\u00e9lant une s\u00e9rie de mol\u00e9cules organiques plus importante que celle identifi\u00e9e initialement, notamment le cyanure d&rsquo;hydrog\u00e8ne, l&rsquo;ac\u00e9tyl\u00e8ne et le propyl\u00e8ne, des compos\u00e9s impliqu\u00e9s dans la chimie pr\u00e9biotique, c&rsquo;est-\u00e0-dire la chimie qui conduit \u00e0 la formation de la vie.<\/p>\n<figure id=\"attachment_25443\" aria-describedby=\"caption-attachment-25443\" style=\"width: 642px\" class=\"wp-caption alignnone\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"25443\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/des-molecules-organiques-fascinantes-ont-ete-detectees-dans-leruption-dencelade\/encelade-molecules\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/12\/encelade-molecules.jpg?fit=642%2C411&amp;ssl=1\" data-orig-size=\"642,411\" data-comments-opened=\"1\" 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;}\" data-image-title=\"encelade-molecules\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;Des mol\u00e9cules organiques pr\u00e9c\u00e9demment non identifi\u00e9es sur Encelade indiquent un environnement habitable. (Peter et al., Nat. Astron., 2023)&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/12\/encelade-molecules.jpg?fit=642%2C411&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/12\/encelade-molecules.jpg?resize=642%2C411&#038;ssl=1\" alt=\"\" width=\"642\" height=\"411\" class=\"size-full wp-image-25443\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/12\/encelade-molecules.jpg?w=642&amp;ssl=1 642w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/12\/encelade-molecules.jpg?resize=300%2C192&amp;ssl=1 300w\" sizes=\"auto, (max-width: 642px) 100vw, 642px\" \/><figcaption id=\"caption-attachment-25443\" class=\"wp-caption-text\">Des mol\u00e9cules organiques pr\u00e9c\u00e9demment non identifi\u00e9es sur Encelade indiquent un environnement habitable. (Peter et al., Nat. Astron., 2023)<\/figcaption><\/figure>\n<p>Nous disposons de preuves assez convaincantes qu&rsquo;Encelade poss\u00e8de un environnement hydrothermal actif. L&rsquo;orbite autour de Saturne \u00e9tire et comprime la lune, ce qui chauffe son int\u00e9rieur. Cette \u00e9nergie thermique peut s&rsquo;\u00e9chapper par des \u00e9vents au fond de l&rsquo;oc\u00e9an, cr\u00e9ant ainsi un environnement propice \u00e0 la vie, m\u00eame si la lune est si \u00e9loign\u00e9e du Soleil. Nous le savons, car cela se produit dans les oc\u00e9ans profonds de la Terre.<\/p>\n<p>\u00c0 ce stade, nous ne pouvons pas savoir si ce que nous avons d\u00e9tect\u00e9 jusqu&rsquo;\u00e0 pr\u00e9sent signifie qu&rsquo;il y a de la vie sur Encelade. Il pourrait s&rsquo;agir simplement d&rsquo;un tas de mol\u00e9cules qui se baladent par co\u00efncidence. Mais ce qui est passionnant, c&rsquo;est que cela pourrait \u00eatre vraiment significatif. Nous pouvons r\u00e9aliser des exp\u00e9riences en laboratoire ici sur Terre pour tenter de d\u00e9terminer si Encelade est habit\u00e9 ou non, mais la seule fa\u00e7on de le savoir avec certitude est de poursuivre l&rsquo;exploration.<\/p>\n<p>Des missions sur Encelade sont actuellement propos\u00e9es, mais rien n&rsquo;a encore \u00e9t\u00e9 d\u00e9cid\u00e9. Cependant, chaque \u00e9l\u00e9ment de preuve nous rapproche un peu plus de la visite de cette lune \u00e9trang\u00e8re et de la recherche de ces bact\u00e9ries extraterrestres.<\/p>\n<p>\u00ab\u00a0Nos r\u00e9sultats, \u00e9crivent les chercheurs, indiquent la pr\u00e9sence d&rsquo;un environnement riche et chimiquement diversifi\u00e9 qui pourrait favoriser une synth\u00e8se organique complexe et peut-\u00eatre m\u00eame l&rsquo;origine de la vie.<\/p>\n<p>Qu&rsquo;est-ce qu&rsquo;on attend ?<\/p>\n<p>Leurs conclusions ont \u00e9t\u00e9 publi\u00e9es dans la <a href=\"https:\/\/www.nature.com\/articles\/s41550-023-02160-0\" rel=\"noopener\" target=\"_blank\">revue Nature Astronomy.<\/a><\/p>\n<p>Adaptation <a href=\"https:\/\/www.laterredufutur.com\/accueil\/\" rel=\"noopener\" target=\"_blank\">Terra Projects<\/a><\/p>\n<p>Source : <a href=\"https:\/\/www.sciencealert.com\/tantalizing-organic-molecules-detected-erupting-from-enceladus\" rel=\"noopener\" target=\"_blank\">https:\/\/www.sciencealert.com\/<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"25442\">(151)<\/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>La lune de Saturne, Encelade, ne ressemble pas \u00e0 grand-chose. Elle est plut\u00f4t monochrome et petite, p\u00e2lissant en comparaison des&#8230;<\/p>\n","protected":false},"author":1,"featured_media":24430,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"ngg_post_thumbnail":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[22],"tags":[3357,122,2882,1628,308],"class_list":["post-25442","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-espace","tag-encelade","tag-lune","tag-molecule","tag-saturne","tag-vie","wpcat-22-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/09\/Encelade.jpg?fit=1248%2C702&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-6Cm","jetpack-related-posts":[{"id":27320,"url":"https:\/\/www.laterredufutur.com\/accueil\/de-nouvelles-preuves-dune-chimie-complexe-decouvertes-dans-locean-extraterrestre-de-la-lune-de-encelade\/","url_meta":{"origin":25442,"position":0},"title":"De nouvelles preuves d&rsquo;une chimie complexe d\u00e9couvertes dans l&rsquo;oc\u00e9an extraterrestre de la lune de Encelade","author":"Admin","date":"5 octobre 2025","format":false,"excerpt":"Un nouvel examen des donn\u00e9es collect\u00e9es par la sonde Cassini de la NASA il y a pr\u00e8s de deux d\u00e9cennies a r\u00e9v\u00e9l\u00e9 de nouvelles mol\u00e9cules organiques complexes sur Encelade, la lune glac\u00e9e de Saturne , indiquant une chimie fascinante se d\u00e9roulant au plus profond de son oc\u00e9an cach\u00e9. Dans 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\/2022\/09\/Encelade.jpg?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/09\/Encelade.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/09\/Encelade.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/09\/Encelade.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/09\/Encelade.jpg?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":24429,"url":"https:\/\/www.laterredufutur.com\/accueil\/encelade-possede-les-six-elements-essentiels-a-la-vie\/","url_meta":{"origin":25442,"position":1},"title":"Encelade poss\u00e8de les six \u00e9l\u00e9ments essentiels \u00e0 la vie","author":"Admin","date":"25 septembre 2022","format":false,"excerpt":"La r\u00e9analyse de grains de roche glac\u00e9e provenant d'un anneau de Saturne - aliment\u00e9 par les panaches de glace de sa lune Encelade - a r\u00e9v\u00e9l\u00e9 la pr\u00e9sence de phosphore, le seul \u00e9l\u00e9ment essentiel \u00e0 la vie qui n'avait pas encore \u00e9t\u00e9 rep\u00e9r\u00e9. Encelade, la lune de Saturne, produit du\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\/2022\/09\/Encelade.jpg?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/09\/Encelade.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/09\/Encelade.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/09\/Encelade.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/09\/Encelade.jpg?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":4366,"url":"https:\/\/www.laterredufutur.com\/accueil\/encelade-une-lune-de-saturne-pourrait-abriter-de-leau-et-peut-etre-la-vie\/","url_meta":{"origin":25442,"position":2},"title":"Encelade, une lune de Saturne pourrait abriter de l&rsquo;eau et peut-\u00eatre la vie","author":"Admin","date":"28 mars 2008","format":false,"excerpt":"WASHINGTON (AFP) - La sonde am\u00e9ricaine Cassini a d\u00e9tect\u00e9 des temp\u00e9ratures et des mol\u00e9cules organiques complexes attestant de la pr\u00e9sence d'eau et de conditions de vie possibles sur Encelade, une des lunes de Saturne, selon la Nasa. Le 12 mars, Cassini a d\u00e9cel\u00e9 une forte densit\u00e9 de vapeur d'eau et\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\/2015\/04\/Encelade.jpg?fit=260%2C261&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":25025,"url":"https:\/\/www.laterredufutur.com\/accueil\/decouverte-majeure-sur-encelade\/","url_meta":{"origin":25442,"position":3},"title":"D\u00e9couverte majeure sur Encelade","author":"Admin","date":"19 juin 2023","format":false,"excerpt":"De nouvelles donn\u00e9es indiquent qu\u2019Encelade poss\u00e8de tous les \u00e9l\u00e9ments n\u00e9cessaires \u00e0 la vie. Pour la premi\u00e8re fois, la pr\u00e9sence de phosphates a \u00e9t\u00e9 d\u00e9tect\u00e9e dans les panaches d\u2019eau lib\u00e9r\u00e9s par Encelade, renfor\u00e7ant l\u2019id\u00e9e que ce satellite naturel de Saturne puisse abriter la vie. LA PR\u00c9SENCE DE PHOSPHORE SUR ENCELADE CONFIRM\u00c9E\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\/2022\/09\/Encelade.jpg?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/09\/Encelade.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/09\/Encelade.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/09\/Encelade.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/09\/Encelade.jpg?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":8994,"url":"https:\/\/www.laterredufutur.com\/accueil\/la-sonde-cassini-va-traverser-un-geyser-dencelade\/","url_meta":{"origin":25442,"position":4},"title":"La sonde Cassini va traverser un geyser d&rsquo;Encelade","author":"Admin","date":"27 octobre 2015","format":false,"excerpt":"La sonde Cassini survolera un geyser de particules de glace de la lune Encelade de Saturne au plus pr\u00e8s, soit \u00e0 49 km de la surface. En programmant cette travers\u00e9e, la Nasa esp\u00e8re ainsi collecter de nouvelles informations sur les activit\u00e9s de l\u2019oc\u00e9an et les conditions permettant \u00e0 la vie\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\/2015\/10\/encelade.jpg?fit=1200%2C472&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/encelade.jpg?fit=1200%2C472&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/encelade.jpg?fit=1200%2C472&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/encelade.jpg?fit=1200%2C472&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/encelade.jpg?fit=1200%2C472&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":15012,"url":"https:\/\/www.laterredufutur.com\/accueil\/la-nasa-annonce-quune-des-lunes-de-saturne-pourrait-abriter-la-vie-extraterrestre\/","url_meta":{"origin":25442,"position":5},"title":"La Nasa annonce qu\u2019une des lunes de Saturne pourrait abriter la vie extraterrestre","author":"Admin","date":"13 avril 2017","format":false,"excerpt":"L'agence am\u00e9ricaine a pr\u00e9sent\u00e9 ses derni\u00e8res d\u00e9couvertes, jeudi... La Nasa a d\u00e9couvert de l\u2019hydrog\u00e8ne dans les geysers \u00e0 la surface d\u2019Encelade, l\u2019une des satellites de Saturne, qui pr\u00e9sente des conditions propices \u00e0 l'\u00e9tablissement de la vie. La recherche de la vie ailleurs dans le syst\u00e8me solaire progresse \u00e0 petits pas,\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\/2015\/10\/encelade1.jpg?fit=900%2C506&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/encelade1.jpg?fit=900%2C506&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/encelade1.jpg?fit=900%2C506&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/encelade1.jpg?fit=900%2C506&ssl=1&resize=700%2C400 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/25442","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=25442"}],"version-history":[{"count":1,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/25442\/revisions"}],"predecessor-version":[{"id":25444,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/25442\/revisions\/25444"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/24430"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=25442"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=25442"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=25442"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}