{"id":5814,"date":"2015-05-06T00:00:54","date_gmt":"2015-05-05T22:00:54","guid":{"rendered":"http:\/\/www.laterredufutur.com\/accueil\/?p=5814"},"modified":"2015-05-04T10:11:44","modified_gmt":"2015-05-04T08:11:44","slug":"des-briques-elementaires-de-la-vie-decouvertes-autour-dune-jeune-etoile","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/des-briques-elementaires-de-la-vie-decouvertes-autour-dune-jeune-etoile\/","title":{"rendered":"Des briques \u00e9l\u00e9mentaires de la vie d\u00e9couvertes autour d\u2019une jeune \u00e9toile"},"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>Pour la premi\u00e8re fois, la pr\u00e9sence de mol\u00e9cules organiques complexes, des briques \u00e9l\u00e9mentaires de la vie, a \u00e9t\u00e9 mise en \u00e9vidence dans un jeune syst\u00e8me stellaire. Les astronomes les d\u00e9signent sous le nom de \u00ab\u00a0briques \u00e9l\u00e9mentaires de la vie\u00a0\u00bb. Aujourd&rsquo;hui, ces mol\u00e9cules organiques, \u00e0 l\u2019origine de la naissance de la Terre et du Soleil, ont \u00e9t\u00e9 retrouv\u00e9es au-del\u00e0 de notre plan\u00e8te. Une d\u00e9couverte majeure qui confirme la th\u00e9orie selon laquelle les conditions n\u00e9cessaires au vivant \u00ab\u00a0ne sont pas uniques dans l\u2019Univers\u00a0\u00bb, explique l\u2019Observatoire europ\u00e9en austral (ESO).<\/p>\n<p>Une \u00e9tude publi\u00e9e dans la revue Nature explique en effet qu&rsquo;une mol\u00e9cule \u00e0 base de carbone a \u00e9t\u00e9 trouv\u00e9e dans un syst\u00e8me stellaire en formation, situ\u00e9 \u00e0 455 ann\u00e9es-lumi\u00e8re de notre plan\u00e8te. In\u00e9dite car c&rsquo;est la premi\u00e8re fois qu&rsquo;une telle d\u00e9couverte est faite. Inattendue car les scientifiques pensaient que seuls les vieux syst\u00e8mes stellaires pouvaient d\u00e9velopper ce genre de mol\u00e9cules.<\/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><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/7X8VVPxWgTQ?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=fr-FR&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n<p>Du cyanure, \u00ab\u00a0brique\u00a0\u00bb \u00e9l\u00e9mentaire de vie. L&rsquo;\u00e9toile MWC 480 n&rsquo;avait en apparence rien de particulier sauf que son disque de gaz et de poussi\u00e8res, actuellement en formation autour d&rsquo;elle, cache un v\u00e9ritable tr\u00e9sor pour les humains que nous sommes. Des scientifiques y ont en effet d\u00e9couvert du cyanure de m\u00e9thyle et du cyanure d&rsquo;hydrog\u00e8ne \u00e0 des concentrations similaires \u00e0 celles de notre syst\u00e8me solaire.<\/p>\n<p><a href=\"http:\/\/www.laterredufutur.com\/accueil\/\">TDF<\/a><\/p>\n<p>sources : http:\/\/www.maxisciences.com\/ \/ http:\/\/www.europe1.fr\/<\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"5814\">(446)<\/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>Pour la premi\u00e8re fois, la pr\u00e9sence de mol\u00e9cules organiques complexes, des briques \u00e9l\u00e9mentaires de la vie, a \u00e9t\u00e9 mise en&#8230;<\/p>\n","protected":false},"author":1,"featured_media":5817,"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":"","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":[4099,538,4100,670,4101,2882,4102,437,4097,4098,555,684,308],"class_list":["post-5814","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-espace","tag-briques","tag-decouverte","tag-elementaires","tag-etoile","tag-jeune-etoile","tag-molecule","tag-mwc-480","tag-nature","tag-premiere-fois","tag-revue","tag-science","tag-video","tag-vie","wpcat-22-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/etoile-MWC480.jpg?fit=700%2C429&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-1vM","jetpack-related-posts":[{"id":16799,"url":"https:\/\/www.laterredufutur.com\/accueil\/un-monde-plus-jeune\/","url_meta":{"origin":5814,"position":0},"title":"Un monde plus jeune","author":"Admin","date":"14 ao\u00fbt 2018","format":false,"excerpt":"Des chercheurs britanniques ont r\u00e9ussi \u00e0 faire rajeunir des cellules en laboratoire. Les cellules ont tendance avec l'\u00e2ge \u00e0 ne plus produire aussi efficacement les prot\u00e9ines, pourtant indispensables \u00e0 leur survie. Deux universit\u00e9s anglaises ont d\u00e9couvert des mol\u00e9cules, pr\u00e9sentes dans le raisin, qui permettent d'y rem\u00e9dier. La vieillesse cessera-t-elle d'\u00eatre\u2026","rel":"","context":"Dans &quot;Monde Futur&quot;","block_context":{"text":"Monde Futur","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/monde-futur\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/12\/cellule.jpg?fit=990%2C561&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/12\/cellule.jpg?fit=990%2C561&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/12\/cellule.jpg?fit=990%2C561&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/12\/cellule.jpg?fit=990%2C561&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":28115,"url":"https:\/\/www.laterredufutur.com\/accueil\/un-rover-de-la-nasa-decouvre-sur-mars-une-roche-contenant-sept-nouvelles-molecules-organiques\/","url_meta":{"origin":5814,"position":1},"title":"Un rover de la NASA d\u00e9couvre sur Mars une roche contenant sept nouvelles mol\u00e9cules organiques","author":"Admin","date":"8 mai 2026","format":false,"excerpt":"Curiosity a d\u00e9couvert sur Mars des mol\u00e9cules organiques si fascinantes que les scientifiques ont eu recours \u00e0 un proc\u00e9d\u00e9 rare pour les analyser. Une roche d\u00e9couverte par le rover Curiosity de la NASA sur Mars contient \u00ab la collection la plus diversifi\u00e9e \u00bb d'\u00e9l\u00e9ments constitutifs de la vie jamais observ\u00e9e\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\/2026\/04\/mont-sharp-mars.webp?fit=970%2C476&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/04\/mont-sharp-mars.webp?fit=970%2C476&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/04\/mont-sharp-mars.webp?fit=970%2C476&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/04\/mont-sharp-mars.webp?fit=970%2C476&ssl=1&resize=700%2C400 2x"},"classes":[]},{"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":5814,"position":2},"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":12397,"url":"https:\/\/www.laterredufutur.com\/accueil\/rosetta-detecte-des-ingredients-de-la-vie-dans-la-comete-tchouri\/","url_meta":{"origin":5814,"position":3},"title":"Rosetta d\u00e9tecte des ingr\u00e9dients de la vie dans la com\u00e8te Tchouri","author":"Admin","date":"29 mai 2016","format":false,"excerpt":"De la glycine et du phosphore, ingr\u00e9dients consid\u00e9r\u00e9s comme cruciaux pour l'origine de la vie sur Terre, ont \u00e9t\u00e9 d\u00e9couverts dans la com\u00e8te 67P\/Tchourioumov-Gu\u00e9rassimenko, que la sonde Rosetta de l'ESA explore depuis presque deux ans. C'\u00e9tait l'une des missions de Rosetta. La sonde de l'Agence spatiale europ\u00e9enne (ESA) l'a remplie.\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\/2016\/05\/roseta-comete.jpg?fit=1000%2C560&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/05\/roseta-comete.jpg?fit=1000%2C560&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/05\/roseta-comete.jpg?fit=1000%2C560&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/05\/roseta-comete.jpg?fit=1000%2C560&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":25249,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-telescope-james-webb-decouvre-du-methane-et-du-dioxyde-de-carbone-dans-latmosphere-de-k2-18-b\/","url_meta":{"origin":5814,"position":4},"title":"Le t\u00e9lescope James Webb d\u00e9couvre du m\u00e9thane et du dioxyde de carbone dans l&rsquo;atmosph\u00e8re de K2-18 b","author":"Admin","date":"27 septembre 2023","format":false,"excerpt":"Une nouvelle observation de K2-18 b, une exoplan\u00e8te 8,6 fois plus massive que la Terre, par le t\u00e9lescope spatial James Webb de la NASA a r\u00e9v\u00e9l\u00e9 la pr\u00e9sence de mol\u00e9cules contenant du carbone, notamment du m\u00e9thane et du dioxyde de carbone. La d\u00e9couverte de M. Webb vient s'ajouter \u00e0 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\/2023\/09\/exoplanete-K2-18b.jpg?fit=985%2C554&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/09\/exoplanete-K2-18b.jpg?fit=985%2C554&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/09\/exoplanete-K2-18b.jpg?fit=985%2C554&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/09\/exoplanete-K2-18b.jpg?fit=985%2C554&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":20898,"url":"https:\/\/www.laterredufutur.com\/accueil\/decouverte-il-etait-une-fois-la-vie-sur-mars\/","url_meta":{"origin":5814,"position":5},"title":"D\u00e9couverte : Il \u00e9tait une fois la vie sur Mars","author":"Admin","date":"4 mai 2020","format":false,"excerpt":"Des scientifiques ont d\u00e9couvert pour la premi\u00e8re fois de l'azote fixe dans une m\u00e9t\u00e9orite martienne. Nous pouvons avoir un nouveau regard sur Mars, une m\u00e9t\u00e9orite martienne vieille de 4 milliards d'ann\u00e9es a r\u00e9v\u00e9l\u00e9 des compos\u00e9s organiques contenant de l'azote - la premi\u00e8re v\u00e9ritable preuve de mol\u00e9cules d'azote fixes sur 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\/2020\/05\/meteoritemars.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\/2020\/05\/meteoritemars.jpg?fit=1024%2C415&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/05\/meteoritemars.jpg?fit=1024%2C415&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/05\/meteoritemars.jpg?fit=1024%2C415&ssl=1&resize=700%2C400 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/5814","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=5814"}],"version-history":[{"count":3,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/5814\/revisions"}],"predecessor-version":[{"id":6376,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/5814\/revisions\/6376"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/5817"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=5814"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=5814"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=5814"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}