{"id":15092,"date":"2017-04-23T00:00:49","date_gmt":"2017-04-22T22:00:49","guid":{"rendered":"http:\/\/www.laterredufutur.com\/accueil\/?p=15092"},"modified":"2017-04-22T16:36:34","modified_gmt":"2017-04-22T14:36:34","slug":"une-nouvelle-exoplanete-pourrait-etre-la-meilleure-candidate-pour-la-recherche-de-traces-de-vie","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/une-nouvelle-exoplanete-pourrait-etre-la-meilleure-candidate-pour-la-recherche-de-traces-de-vie\/","title":{"rendered":"Une nouvelle exoplan\u00e8te pourrait \u00eatre la meilleure candidate pour la recherche de traces de vie"},"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>Une exoplan\u00e8te en orbite autour d&rsquo;une \u00e9toile de type naine rouge situ\u00e9e \u00e0 40 ann\u00e9es lumi\u00e8re de la Terre pourrait bien remporter \u00e0 son tour le titre de \u00ab\u00a0meilleure candidate pour la recherche de traces de vie au-del\u00e0 du Syst\u00e8me Solaire\u00a0\u00bb.<\/p>\n<p>Une \u00e9quipe internationale d&rsquo;astronomes compos\u00e9e de scientifiques de l&rsquo;Institut de Plan\u00e9tologie et d&rsquo;Astrophysique de Grenoble (CNRS\/Universit\u00e9 Grenoble-Alpes) a d\u00e9couvert, au moyen de l&rsquo;instrument HARPS de l&rsquo;ESO \u00e0 l&rsquo;Observatoire de La Silla et d&rsquo;autres t\u00e9lescopes diss\u00e9min\u00e9s sur Terre, une \u00ab\u00a0super-Terre\u00a0\u00bb d\u00e9crivant une orbite au sein de la zone habitable de l&rsquo;\u00e9toile LHS 1140, de faible luminosit\u00e9.<\/p>\n<p>Cette plan\u00e8te arbore des dimensions ainsi qu&rsquo;une masse sup\u00e9rieures \u00e0 celles de la Terre, et a probablement retenu une large part de son atmosph\u00e8re. Ces \u00e9l\u00e9ments, ajout\u00e9s au fait qu&rsquo;elle transite r\u00e9guli\u00e8rement devant son \u00e9toile, en font l&rsquo;une des cibles les plus prometteuses pour les \u00e9tudes atmosph\u00e9riques \u00e0 venir. Les r\u00e9sultats de ces observations sont parues au sein de l&rsquo;\u00e9dition du 20 avril 2017 de la revue Nature.<\/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>Cette super-Terre nouvellement d\u00e9couverte et baptis\u00e9e LHS 1140b d\u00e9crit une orbite au sein de la zone habitable d&rsquo;une \u00e9toile de type naine rouge faiblement lumineuse r\u00e9f\u00e9renc\u00e9e LHS 1140 et situ\u00e9e dans la constellation de la Baleine (Le Monstre Marin) (1). Les naines rouges sont beaucoup plus petites et bien plus froides que le Soleil. Bien que la distance s\u00e9parant LHS 1140b de son \u00e9toile soit dix fois inf\u00e9rieure \u00e0 la distance Terre &#8211; Soleil, LHS 1140b ne re\u00e7oit que la moiti\u00e9 de l&rsquo;ensoleillement terrestre et occupe le centre de la zone habitable. Cette orbite nous appara\u00eet de profil depuis la Terre. Chaque 25 jours, l&rsquo;exoplan\u00e8te passe devant son \u00e9toile, bloquant une fraction de la lumi\u00e8re qui nous en parvient.<\/p>\n<p>extrait et source de <a href=\"http:\/\/www.techno-science.net\/?onglet=news&amp;news=16211\" target=\"_blank\">http:\/\/www.techno-science.net\/<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"15092\">(257)<\/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>Une exoplan\u00e8te en orbite autour d&rsquo;une \u00e9toile de type naine rouge situ\u00e9e \u00e0 40 ann\u00e9es lumi\u00e8re de la Terre pourrait&#8230;<\/p>\n","protected":false},"author":1,"featured_media":15066,"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_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":"Une nouvelle exoplan\u00e8te pourrait \u00eatre la meilleure candidate pour la recherche de traces de vie @laterredufutur","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":[252,117,359,6400,364,1283],"class_list":["post-15092","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-espace","tag-atmosphere","tag-espace","tag-exoplanete","tag-lhs-1140b","tag-naine-rouge","tag-orbite","wpcat-22-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/04\/exoplanete.jpg?fit=1280%2C720&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-3Vq","jetpack-related-posts":[{"id":18936,"url":"https:\/\/www.laterredufutur.com\/accueil\/la-vie-pourrait-evoluer-actuellement-sur-les-exoplanetes-les-plus-proches\/","url_meta":{"origin":15092,"position":0},"title":"La vie pourrait \u00e9voluer actuellement sur les exoplan\u00e8tes les plus proches","author":"Admin","date":"24 mai 2019","format":false,"excerpt":"L'enthousiasme a mont\u00e9 en fl\u00e8che lorsque des plan\u00e8tes rocheuses semblables \u00e0 la Terre ont \u00e9t\u00e9 d\u00e9couvertes en orbite dans la zone habitable de certaines de nos \u00e9toiles les plus proches - jusqu'\u00e0 ce que les espoirs de vie soient an\u00e9antis par les niveaux \u00e9lev\u00e9s de rayonnement qui bombardaient ces mondes.\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\/04\/exoplanete-etoile-rouge.jpg?fit=800%2C480&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/04\/exoplanete-etoile-rouge.jpg?fit=800%2C480&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/04\/exoplanete-etoile-rouge.jpg?fit=800%2C480&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/04\/exoplanete-etoile-rouge.jpg?fit=800%2C480&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":15166,"url":"https:\/\/www.laterredufutur.com\/accueil\/une-nouvelle-exoplanete-qui-pourrait-accueillir-la-vie\/","url_meta":{"origin":15092,"position":1},"title":"Une nouvelle exoplan\u00e8te qui pourrait accueillir la vie ?","author":"Admin","date":"9 mai 2017","format":false,"excerpt":"Elle porte le doux nom de LHS 1140b. Situ\u00e9e dans la zone habitable autour d'une \u00e9toile situ\u00e9e \u00e0 40 ann\u00e9es lumi\u00e8res de notre syst\u00e8me solaire, ce monde rocheux a toutes les caract\u00e9ristiques pour qu'on y d\u00e9couvre \u00e9ventuellement la pr\u00e9sence d'eau \u00e0 sa surface. LHS 1140b grimpe en t\u00eate de 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\/2017\/02\/exoplanete.jpg?fit=1024%2C415&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/02\/exoplanete.jpg?fit=1024%2C415&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/02\/exoplanete.jpg?fit=1024%2C415&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/02\/exoplanete.jpg?fit=1024%2C415&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":14996,"url":"https:\/\/www.laterredufutur.com\/accueil\/des-scientifiques-viennent-de-detecter-une-atmosphere-sur-une-exoplanete\/","url_meta":{"origin":15092,"position":2},"title":"Des scientifiques viennent de d\u00e9tecter une atmosph\u00e8re sur une exoplan\u00e8te","author":"Admin","date":"15 avril 2017","format":false,"excerpt":"La recherche de formes de vie extraterrestre est sans doute l\u2019une des qu\u00eates les plus exaltantes de l\u2019univers. Des chercheurs viennent de d\u00e9couvrir une atmosph\u00e8re autour de Gliese 1132b, une exoplan\u00e8te de la taille de la Terre, faisant d\u2019elle une candidate potentielle au d\u00e9veloppement de la vie. LA D\u00c9COUVERTE D\u2019UNE\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\/2017\/04\/GJ-1132b.jpg?fit=904%2C508&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/04\/GJ-1132b.jpg?fit=904%2C508&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/04\/GJ-1132b.jpg?fit=904%2C508&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/04\/GJ-1132b.jpg?fit=904%2C508&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":16656,"url":"https:\/\/www.laterredufutur.com\/accueil\/une-nouvelle-planete-de-la-taille-de-la-terre-a-ete-decouverte\/","url_meta":{"origin":15092,"position":3},"title":"Une nouvelle plan\u00e8te de la taille de la Terre a \u00e9t\u00e9 d\u00e9couverte","author":"Admin","date":"1 juin 2018","format":false,"excerpt":"Une nouvelle plan\u00e8te de la taille de la Terre vient d'\u00eatre d\u00e9couverte, et ce monde potentiellement habitable, le plus proche de nous, orbite autour d'une \u00e9toile \u00ab calme \u00bb et propice \u00e0 la vie. D\u00e9couverte \u00e0 seulement 11 ann\u00e9es-lumi\u00e8re de notre plan\u00e8te, Ross 128b fait le tour d'une petite 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\/2018\/05\/ross-128-b-naine-rouge.jpg?fit=885%2C841&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/05\/ross-128-b-naine-rouge.jpg?fit=885%2C841&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/05\/ross-128-b-naine-rouge.jpg?fit=885%2C841&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/05\/ross-128-b-naine-rouge.jpg?fit=885%2C841&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":21489,"url":"https:\/\/www.laterredufutur.com\/accueil\/certaines-planetes-pourraient-etre-meilleures-candidates-a-la-vie-que-la-terre\/","url_meta":{"origin":15092,"position":4},"title":"Certaines plan\u00e8tes pourraient \u00eatre meilleures candidates \u00e0 la vie que la Terre","author":"Admin","date":"18 octobre 2020","format":false,"excerpt":"La Terre n'est pas n\u00e9cessairement la meilleure plan\u00e8te de l'univers.\u00a0Les chercheurs ont identifi\u00e9 deux douzaines de plan\u00e8tes en dehors de notre syst\u00e8me solaire qui peuvent avoir des conditions plus propices \u00e0 la vie que la n\u00f4tre.\u00a0Certaines de ces plan\u00e8tes en orbite autour d'\u00e9toiles pourraient \u00eatre meilleures que notre propre soleil.\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\/10\/exoplanete.jpg?fit=1200%2C575&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/10\/exoplanete.jpg?fit=1200%2C575&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/10\/exoplanete.jpg?fit=1200%2C575&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/10\/exoplanete.jpg?fit=1200%2C575&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/10\/exoplanete.jpg?fit=1200%2C575&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":27390,"url":"https:\/\/www.laterredufutur.com\/accueil\/a-18-annees-lumiere-de-notre-systeme-solaire-une-super-terre-pourrait-abriter-la-vie\/","url_meta":{"origin":15092,"position":5},"title":"A 18 ann\u00e9es-lumi\u00e8re de notre Syst\u00e8me solaire, une super-Terre pourrait abriter la vie","author":"Admin","date":"27 octobre 2025","format":false,"excerpt":"La chasse aux mondes habitables franchit un nouveau cap avec la d\u00e9couverte de GJ 251c, une exoplan\u00e8te situ\u00e9e \u00e0 seulement 18 ann\u00e9es-lumi\u00e8re. Voici pourquoi ce monde suscite tant d\u2019espoirs dans la recherche de vie extraterrestre. GJ 251c : une exoplan\u00e8te massive, temp\u00e9r\u00e9e et potentiellement habitable Les astronomes ont identifi\u00e9 GJ\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\/10\/exoplanete.jpg?fit=1200%2C575&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/10\/exoplanete.jpg?fit=1200%2C575&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/10\/exoplanete.jpg?fit=1200%2C575&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/10\/exoplanete.jpg?fit=1200%2C575&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/10\/exoplanete.jpg?fit=1200%2C575&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/15092","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=15092"}],"version-history":[{"count":1,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/15092\/revisions"}],"predecessor-version":[{"id":15093,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/15092\/revisions\/15093"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/15066"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=15092"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=15092"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=15092"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}