{"id":29414,"date":"2026-07-08T08:00:18","date_gmt":"2026-07-08T06:00:18","guid":{"rendered":"https:\/\/www.laterredufutur.com\/accueil\/?p=29414"},"modified":"2026-07-08T08:02:17","modified_gmt":"2026-07-08T06:02:17","slug":"apres-huit-ans-dans-lespace-bepicolombo-sapprete-a-reveler-les-secrets-de-mercure","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/apres-huit-ans-dans-lespace-bepicolombo-sapprete-a-reveler-les-secrets-de-mercure\/","title":{"rendered":"Apr\u00e8s huit ans dans l&rsquo;espace, BepiColombo s&rsquo;appr\u00eate \u00e0 r\u00e9v\u00e9ler les secrets de Mercure"},"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>Sept ann\u00e9es de voyage, neuf milliards de kilom\u00e8tres parcourus et une succession de man\u0153uvres gravitationnelles d&rsquo;une pr\u00e9cision exceptionnelle : la mission BepiColombo est d\u00e9sormais aux portes de Mercure. L&rsquo;ultime phase de son aventure spatiale est en cours, ouvrant la voie \u00e0 l&rsquo;exploration la plus compl\u00e8te jamais r\u00e9alis\u00e9e de la plan\u00e8te la plus proche du Soleil.<\/p>\n<p><strong>Une mission hors normes<\/strong><\/p>\n<p>Lanc\u00e9e le 20 octobre 2018, la mission est le fruit d&rsquo;une collaboration entre (ESA) et .<\/p>\n<p>Contrairement aux autres plan\u00e8tes du Syst\u00e8me solaire, atteindre Mercure repr\u00e9sente un d\u00e9fi consid\u00e9rable. La proximit\u00e9 du Soleil oblige un vaisseau spatial \u00e0 perdre une immense quantit\u00e9 de vitesse pour \u00e9viter d&rsquo;\u00eatre happ\u00e9 par son attraction gravitationnelle. Plut\u00f4t que de foncer directement vers sa cible, BepiColombo a d\u00fb emprunter une trajectoire complexe compos\u00e9e de nombreux survols plan\u00e9taires.<\/p>\n<p>Au total, la sonde aura parcouru pr\u00e8s de 9 milliards de kilom\u00e8tres, soit plus de soixante fois la distance s\u00e9parant la Terre du Soleil.<\/p>\n<figure id=\"attachment_23964\" aria-describedby=\"caption-attachment-23964\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"23964\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/mercure-pourrait-avoir-une-croute-remplie-de-diamants\/mercure-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/04\/mercure.jpg?fit=1024%2C576&amp;ssl=1\" data-orig-size=\"1024,576\" 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=\"mercure\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;Pixabay License&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/04\/mercure.jpg?fit=800%2C450&amp;ssl=1\" class=\"wp-image-23964 size-large\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/04\/mercure.jpg?resize=800%2C450&#038;ssl=1\" alt=\"\" width=\"800\" height=\"450\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/04\/mercure.jpg?resize=800%2C450&amp;ssl=1 800w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/04\/mercure.jpg?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/04\/mercure.jpg?resize=768%2C432&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/04\/mercure.jpg?resize=580%2C326&amp;ssl=1 580w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/04\/mercure.jpg?resize=174%2C98&amp;ssl=1 174w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/04\/mercure.jpg?w=1024&amp;ssl=1 1024w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-23964\" class=\"wp-caption-text\">Pixabay License<\/figcaption><\/figure>\n<p><strong>Une incroyable chor\u00e9graphie gravitationnelle<\/strong><\/p>\n<p>Pour ralentir progressivement sans consommer des quantit\u00e9s astronomiques de carburant, BepiColombo a utilis\u00e9 l&rsquo;assistance gravitationnelle de plusieurs plan\u00e8tes.<\/p>\n<p>Son itin\u00e9raire comprend :<\/p>\n<ul>\n<li>un survol de la Terre ;<\/li>\n<li>deux survols de V\u00e9nus ;<\/li>\n<li>six survols de Mercure.<\/li>\n<\/ul>\n<p>\u00c0 chaque passage, la gravit\u00e9 de la plan\u00e8te modifie l\u00e9g\u00e8rement sa trajectoire et r\u00e9duit progressivement sa vitesse.<\/p>\n<p>Cette m\u00e9thode, comparable \u00e0 un freinage cosmique, permet d&rsquo;arriver suffisamment lentement pour \u00eatre captur\u00e9e par la gravit\u00e9 de Mercure.<\/p>\n<p><strong>Une arriv\u00e9e historique en 2026<\/strong><\/p>\n<p>Le 21 novembre 2026 : capture gravitationnelle et premi\u00e8re mise en orbite autour de Mercure.<\/p>\n<p>Fin novembre \u00e0 d\u00e9cembre 2026 : s\u00e9paration des deux orbiteurs scientifiques :<\/p>\n<p>le Mercury Planetary Orbiter (MPO) de l&rsquo;ESA, qui \u00e9tudiera la surface, la g\u00e9ologie et l&rsquo;int\u00e9rieur de la plan\u00e8te ;<\/p>\n<p>Mio (Mercury Magnetospheric Orbiter) de la JAXA, consacr\u00e9 au champ magn\u00e9tique, \u00e0 la magn\u00e9tosph\u00e8re et aux interactions avec le vent solaire.&nbsp;<\/p>\n<p>D\u00e9but 2027 : d\u00e9but de la mission scientifique nominale, lorsque les deux orbiteurs auront rejoint leurs orbites d\u00e9finitives.<\/p>\n<p>Apr\u00e8s pr\u00e8s de huit ann\u00e9es de voyage, la mission entre d\u00e9sormais dans sa phase d\u00e9cisive.<\/p>\n<p>Ils \u00e9tudieront ensuite la plan\u00e8te durant plusieurs ann\u00e9es.<\/p>\n<p>Le premier, d\u00e9velopp\u00e9 par l&rsquo;ESA, observera principalement la surface, la structure interne et la composition g\u00e9ologique.<\/p>\n<p>Le second, con\u00e7u par la JAXA, analysera le champ magn\u00e9tique, la magn\u00e9tosph\u00e8re ainsi que les interactions permanentes entre Mercure et le vent solaire.<\/p>\n<p>Cette double approche permettra d&rsquo;obtenir une vision globale jamais atteinte.<\/p>\n<p><strong>Pourquoi Mercure fascine autant les scientifiques ?<\/strong><\/p>\n<p>\u00c0 premi\u00e8re vue, Mercure ressemble \u00e0 une simple plan\u00e8te rocheuse fortement crat\u00e9ris\u00e9e. Pourtant, elle demeure l&rsquo;un des mondes les plus myst\u00e9rieux du Syst\u00e8me solaire.<\/p>\n<p>Les chercheurs cherchent notamment \u00e0 comprendre :<\/p>\n<ul>\n<li>pourquoi son immense noyau m\u00e9tallique repr\u00e9sente pr\u00e8s de 85 % de son rayon ;<\/li>\n<li>comment son champ magn\u00e9tique subsiste malgr\u00e9 la petite taille de la plan\u00e8te ;<\/li>\n<li>pourquoi des d\u00e9p\u00f4ts de glace persistent dans certains crat\u00e8res polaires pourtant si proches du Soleil ;<\/li>\n<li>comment son int\u00e9rieur continue d&rsquo;\u00e9voluer.<\/li>\n<\/ul>\n<p>R\u00e9pondre \u00e0 ces questions permettra \u00e9galement de mieux comprendre la formation des plan\u00e8tes rocheuses, y compris la Terre.<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"29418\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/apres-huit-ans-dans-lespace-bepicolombo-sapprete-a-reveler-les-secrets-de-mercure\/mission-mercure-sonde-bepicolombo\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/07\/Mission-mercure-sonde-bepicolombo.jpg?fit=1536%2C1024&amp;ssl=1\" data-orig-size=\"1536,1024\" 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=\"Mission mercure sonde bepicolombo\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/07\/Mission-mercure-sonde-bepicolombo.jpg?fit=800%2C533&amp;ssl=1\" class=\"aligncenter wp-image-29418 size-full\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/07\/Mission-mercure-sonde-bepicolombo.jpg?resize=1536%2C1024&#038;ssl=1\" alt=\"\" width=\"1536\" height=\"1024\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/07\/Mission-mercure-sonde-bepicolombo.jpg?w=1536&amp;ssl=1 1536w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/07\/Mission-mercure-sonde-bepicolombo.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/07\/Mission-mercure-sonde-bepicolombo.jpg?resize=800%2C533&amp;ssl=1 800w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/07\/Mission-mercure-sonde-bepicolombo.jpg?resize=80%2C53&amp;ssl=1 80w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/07\/Mission-mercure-sonde-bepicolombo.jpg?resize=768%2C512&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/07\/Mission-mercure-sonde-bepicolombo.jpg?resize=1226%2C817&amp;ssl=1 1226w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/07\/Mission-mercure-sonde-bepicolombo.jpg?resize=928%2C619&amp;ssl=1 928w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/07\/Mission-mercure-sonde-bepicolombo.jpg?resize=480%2C320&amp;ssl=1 480w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<p><strong>Des conditions extr\u00eames<\/strong><\/p>\n<p>Mercure \u00e9volue \u00e0 seulement 58 millions de kilom\u00e8tres du Soleil.<\/p>\n<p>Les temp\u00e9ratures y oscillent entre -180 \u00b0C durant la nuit et plus de 430 \u00b0C en plein jour, ce qui en fait l&rsquo;un des environnements les plus hostiles du Syst\u00e8me solaire.<\/p>\n<p>La sonde doit donc supporter un rayonnement solaire jusqu&rsquo;\u00e0 dix fois plus intense que celui re\u00e7u en orbite terrestre.<\/p>\n<p>Pour r\u00e9sister \u00e0 ces conditions, BepiColombo est \u00e9quip\u00e9e de boucliers thermiques, de panneaux solaires sp\u00e9cialement con\u00e7us pour les fortes chaleurs et de syst\u00e8mes \u00e9lectroniques capables de fonctionner malgr\u00e9 ces temp\u00e9ratures extr\u00eames.<\/p>\n<figure id=\"attachment_12098\" aria-describedby=\"caption-attachment-12098\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"12098\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/mercure-va-saligner-entre-la-terre-et-le-soleil-un-transit-tres-rare\/mercure-transit_soleil\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/05\/mercure-transit_soleil.jpg?fit=1024%2C415&amp;ssl=1\" data-orig-size=\"1024,415\" 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=\"mercure-transit_soleil\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/05\/mercure-transit_soleil.jpg?fit=800%2C324&amp;ssl=1\" class=\"wp-image-12098 size-large\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/05\/mercure-transit_soleil.jpg?resize=800%2C324&#038;ssl=1\" alt=\"\" width=\"800\" height=\"324\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/05\/mercure-transit_soleil.jpg?resize=800%2C324&amp;ssl=1 800w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/05\/mercure-transit_soleil.jpg?resize=300%2C122&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/05\/mercure-transit_soleil.jpg?resize=768%2C311&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/05\/mercure-transit_soleil.jpg?w=1024&amp;ssl=1 1024w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-12098\" class=\"wp-caption-text\">Transit de Mercure devant le Soleil<\/figcaption><\/figure>\n<p><strong>Une mission qui pourrait transformer notre compr\u00e9hension des plan\u00e8tes<\/strong><\/p>\n<p>Les donn\u00e9es recueillies permettront non seulement de mieux conna\u00eetre Mercure, mais aussi d&rsquo;am\u00e9liorer les mod\u00e8les de formation des plan\u00e8tes autour d&rsquo;autres \u00e9toiles.<\/p>\n<p>Les scientifiques esp\u00e8rent notamment comprendre pourquoi certaines plan\u00e8tes deviennent riches en m\u00e9taux, comment naissent les champs magn\u00e9tiques plan\u00e9taires et comment \u00e9voluent les mondes soumis \u00e0 un rayonnement intense.<\/p>\n<p>Ces informations pourraient \u00e9galement aider \u00e0 interpr\u00e9ter les nombreuses exoplan\u00e8tes rocheuses d\u00e9couvertes ces derni\u00e8res ann\u00e9es, dont plusieurs gravitent tr\u00e8s pr\u00e8s de leur \u00e9toile.<\/p>\n<p><strong>Une nouvelle \u00e8re pour l&rsquo;exploration de Mercure<\/strong><\/p>\n<p>Apr\u00e8s presque une d\u00e9cennie de voyage \u00e0 travers le Syst\u00e8me solaire, BepiColombo s&rsquo;appr\u00eate enfin \u00e0 accomplir sa mission.<\/p>\n<p>Chaque nouvelle image et chaque mesure permettront de lever un peu plus le voile sur une plan\u00e8te encore largement m\u00e9connue.<\/p>\n<p>Dans quelques mois, Mercure ne sera plus seulement un petit point brillant aper\u00e7u au cr\u00e9puscule : elle deviendra l&rsquo;un des mondes les mieux \u00e9tudi\u00e9s de notre voisinage cosmique.<\/p>\n<p>L&rsquo;ultime \u00e9tape d&rsquo;un voyage de neuf milliards de kilom\u00e8tres est d\u00e9sormais en vue.<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"6313\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/la-sonde-spatiale-secrase-sur-mercure\/mercure\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/mercure.jpg?fit=900%2C458&amp;ssl=1\" data-orig-size=\"900,458\" 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=\"mercure\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/mercure.jpg?fit=800%2C407&amp;ssl=1\" class=\"aligncenter wp-image-6313 size-full\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/mercure.jpg?resize=900%2C458&#038;ssl=1\" alt=\"\" width=\"900\" height=\"458\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/mercure.jpg?w=900&amp;ssl=1 900w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/mercure.jpg?resize=300%2C153&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/mercure.jpg?resize=800%2C407&amp;ssl=1 800w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/p>\n<p>Adaptation Terra Projects&nbsp;<\/p>\n<p><em>Sources officielles :<\/em><br \/>\n<em>Agence spatiale europ\u00e9enne (ESA) \u2013 Mission BepiColombo\u2060<\/em><br \/>\n<em>ESA \u2013 Fiche officielle de la mission BepiColombo\u2060<\/em><br \/>\n<em>ESA \u2013 Journey to Mercury (itin\u00e9raire complet)\u2060<\/em><br \/>\n<em>ESA \u2013 Un an avant l&rsquo;arriv\u00e9e sur Mercure\u2060<\/em><br \/>\n<em>JAXA \u2013 Route de BepiColombo vers Mercure\u2060<\/em><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"29414\">(7)<\/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>Sept ann\u00e9es de voyage, neuf milliards de kilom\u00e8tres parcourus et une succession de man\u0153uvres gravitationnelles d&rsquo;une pr\u00e9cision exceptionnelle : la&#8230;<\/p>\n","protected":false},"author":1,"featured_media":29416,"comment_status":"closed","ping_status":"closed","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_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":[8392,2053,2142,702],"class_list":["post-29414","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-espace","tag-bepicolombo","tag-mercure","tag-mission","tag-sonde","wpcat-22-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/07\/Sonde-bepicolombo-mercure.jpg?fit=1536%2C1024&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-7Eq","jetpack-related-posts":[{"id":23963,"url":"https:\/\/www.laterredufutur.com\/accueil\/mercure-pourrait-avoir-une-croute-remplie-de-diamants\/","url_meta":{"origin":29414,"position":0},"title":"Mercure pourrait avoir une croute remplie de diamants","author":"Admin","date":"14 avril 2022","format":false,"excerpt":"Des milliards d'ann\u00e9es d'impacts ont pu transformer une grande partie de la cro\u00fbte de graphite en pierres pr\u00e9cieuses. Un tr\u00e9sor de diamants pourrait \u00eatre sem\u00e9 dans la cro\u00fbte de Mercure. Des milliards d'ann\u00e9es d'impacts de m\u00e9t\u00e9orites pourraient avoir transform\u00e9 une grande partie de la surface de Mercure en pierres pr\u00e9cieuses\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\/04\/mercure.jpg?fit=1024%2C576&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/04\/mercure.jpg?fit=1024%2C576&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/04\/mercure.jpg?fit=1024%2C576&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/04\/mercure.jpg?fit=1024%2C576&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":6310,"url":"https:\/\/www.laterredufutur.com\/accueil\/la-sonde-spatiale-secrase-sur-mercure\/","url_meta":{"origin":29414,"position":1},"title":"La sonde spatiale Messenger s&rsquo;\u00e9crase sur Mercure","author":"Admin","date":"30 avril 2015","format":false,"excerpt":"Video ci-apr\u00e8s. Onze ans apr\u00e8s son lancement dans l'espace, la sonde Messenger de la NASA, devrait s'\u00e9craser ce 30 avril 2015\u00a0sur Mercure. Rentr\u00e9e en orbite le 17 mars 2011, Messenger (MErcury Surface, Space ENvironment, GEochemistry, and Ranging) devait initialement rester un an autour de la plan\u00e8te. Finalement la mission a\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\/mercure.jpg?fit=900%2C458&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/mercure.jpg?fit=900%2C458&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/mercure.jpg?fit=900%2C458&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/mercure.jpg?fit=900%2C458&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":18250,"url":"https:\/\/www.laterredufutur.com\/accueil\/la-planete-la-plus-proche-du-soleil-contient-de-la-glace-a-sa-surface\/","url_meta":{"origin":29414,"position":2},"title":"La plan\u00e8te la plus proche du Soleil contient de la glace \u00e0 sa surface","author":"Admin","date":"4 f\u00e9vrier 2019","format":false,"excerpt":"En 2012, les scientifiques ont d\u00e9couvert qu'il existait dans les r\u00e9gions polaires de Mercure de grandes quantit\u00e9s de glace d'eau. Bien que l\u2019existence de glace dans cette r\u00e9gion soit improbable, apr\u00e8s tout, il s\u2019agit d\u2019une plan\u00e8te avec une temp\u00e9rature de 426 \u00b0 C \u00e0 sa surface, l\u2019existence de glace est\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\/02\/mercure-eau-pole.jpg?fit=1024%2C515&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/mercure-eau-pole.jpg?fit=1024%2C515&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/mercure-eau-pole.jpg?fit=1024%2C515&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/mercure-eau-pole.jpg?fit=1024%2C515&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":4962,"url":"https:\/\/www.laterredufutur.com\/accueil\/on-a-marche-sur-la-lune\/","url_meta":{"origin":29414,"position":3},"title":"On a march\u00e9 sur la Lune","author":"Admin","date":"20 juillet 2009","format":false,"excerpt":"On a march\u00e9 sur la Lune, c'\u00e9tait il y a 40 ans aujourd'hui. Houston, 20 juillet 1969. L'atmosph\u00e8re est oppressante dans la salle de contr\u00f4le de la Nasa. Le souffle court, le coeur battant, ing\u00e9nieurs et techniciens ont les yeux riv\u00e9s sur leurs ordinateurs. D'il y a 40 ans \u00e0\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\/armstrong.jpg?fit=400%2C307&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":12097,"url":"https:\/\/www.laterredufutur.com\/accueil\/mercure-va-saligner-entre-la-terre-et-le-soleil-un-transit-tres-rare\/","url_meta":{"origin":29414,"position":4},"title":"Mercure va s&rsquo;aligner entre la Terre et le Soleil, un transit tr\u00e8s rare","author":"Admin","date":"6 mai 2016","format":false,"excerpt":"Ce ph\u00e9nom\u00e8ne tr\u00e8s rare sera visible lundi 9 mai 2016 depuis la France pendant une dur\u00e9e de plus de 7 heures. Mercure, la plus petite plan\u00e8te du syst\u00e8me solaire, passera lundi entre la Terre et le Soleil. Ce ph\u00e9nom\u00e8ne rare sera visible dans la partie du monde o\u00f9 il fera\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\/mercure.jpg?fit=900%2C458&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/mercure.jpg?fit=900%2C458&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/mercure.jpg?fit=900%2C458&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/mercure.jpg?fit=900%2C458&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":8340,"url":"https:\/\/www.laterredufutur.com\/accueil\/mercure-va-t-elle-percuter-le-soleil-venus-ou-bien-la-terre\/","url_meta":{"origin":29414,"position":5},"title":"Mercure va-t-elle percuter le Soleil, V\u00e9nus&#8230; ou bien la Terre ?","author":"Admin","date":"4 octobre 2015","format":false,"excerpt":"Dans un futur tr\u00e8s lointain, la plan\u00e8te Mercure pourrait rentrer en collision avec le Soleil ou V\u00e9nus. Un heurt avec la Terre, un temps envisag\u00e9, semble \u00eatre \u00e9cart\u00e9 par une nouvelle \u00e9tude. Le spectacle aurait d\u00fb \u00eatre le dernier \u00e9v\u00e8nement que nous aurions admir\u00e9 avant de dispara\u00eetre, si toutefois l\u2019humanit\u00e9\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\/mercure.jpg?fit=900%2C458&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/mercure.jpg?fit=900%2C458&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/mercure.jpg?fit=900%2C458&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/mercure.jpg?fit=900%2C458&ssl=1&resize=700%2C400 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/29414","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=29414"}],"version-history":[{"count":6,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/29414\/revisions"}],"predecessor-version":[{"id":29422,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/29414\/revisions\/29422"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/29416"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=29414"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=29414"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=29414"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}