{"id":19782,"date":"2019-11-10T17:00:41","date_gmt":"2019-11-10T15:00:41","guid":{"rendered":"https:\/\/www.laterredufutur.com\/accueil\/?p=19782"},"modified":"2019-11-09T18:39:01","modified_gmt":"2019-11-09T17:39:01","slug":"et-si-la-planete-9-etait-un-trou-noir","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/et-si-la-planete-9-etait-un-trou-noir\/","title":{"rendered":"Et si la plan\u00e8te 9 \u00e9tait un trou noir ?"},"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>Selon des chercheurs, la potentielle neuvi\u00e8me plan\u00e8te, qui se situerait aux confins de notre Syst\u00e8me solaire, pourrait \u00eatre un trou noir primordial.<\/p>\n<p>Dans la ceinture de Kuiper, \u00e0 la limite de notre Syst\u00e8me solaire, un objet inconnu d\u00e9vie les trajectoires de corps c\u00e9lestes gel\u00e9s, compos\u00e9s d\u2019eau ou de m\u00e9thane, qui circulent autour de notre \u00e9toile. Jusqu\u2019\u00e0 pr\u00e9sent, l\u2019hypoth\u00e8se dominante \u00e9tait que cet objet inconnu serait une \u00e9norme plan\u00e8te, connue sous le nom de plan\u00e8te 9 \u2013 et que certains appellent plan\u00e8te X.<\/p>\n<p>\u201cDot\u00e9e d\u2019une masse d\u2019environ dix fois celle de la Terre, cette plan\u00e8te se trouverait sur une orbite vingt fois plus \u00e9loign\u00e9e que celle de Neptune. Tr\u00e8s lente, elle mettrait entre dix mille et vingt mille ans pour boucler son tour autour du Soleil\u201d, d\u00e9taille Radio-Canada. Sa distance par rapport \u00e0 notre plan\u00e8te expliquerait pourquoi personne n\u2019a pu l\u2019observer jusqu\u2019\u00e0 pr\u00e9sent.<\/p>\n<p>\u201cPas une plan\u00e8te du tout\u201d<br \/>\nD\u00e9sormais, des astronomes sugg\u00e8rent dans un article mis en ligne le 24 septembre sur le site arXiv qu\u2019il pourrait y avoir une autre raison pour laquelle personne n\u2019a jamais vu cette plan\u00e8te 9. \u201cCe ne serait pas une plan\u00e8te du tout\u201d, d\u00e9voile la MIT Technology Review, qui poursuit :<\/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>Notre Syst\u00e8me solaire pourrait avoir en orbite un trou noir primordial \u2013 une masse de mati\u00e8re hyperdense de la taille d\u2019une balle de tennis. Si c\u2019est le cas, nous devons changer d\u2019approche dans nos recherches.\u201d<\/p>\n<p>Pour James Unwin, l\u2019un des auteurs de l\u2019\u00e9tude, chercheur \u00e0 l\u2019universit\u00e9 de l\u2019Illinois \u00e0 Chicago, cit\u00e9 par Gizmodo, plut\u00f4t que de s\u2019int\u00e9resser uniquement \u00e0 la lumi\u00e8re visible, il faudrait chercher ce corps inconnu \u201cdans les rayons gamma. Ou les rayons cosmiques\u201d.<\/p>\n<p>Les trous noirs dits primordiaux sont diff\u00e9rents de ceux form\u00e9s par l\u2019effondrement de grosses \u00e9toiles, qu\u2019on trouve au centre des galaxies. Ils auraient \u00e9t\u00e9 form\u00e9s durant le Big Bang, seraient tout petits et particuli\u00e8rement difficiles \u00e0 rep\u00e9rer. \u201c\u00c0 ce jour, l\u2019existence de ce type de trou noir reste th\u00e9orique, mais de nombreux astrophysiciens pensent que l\u2019Univers en compte en abondance\u201d, insiste Radio-Canada.<\/p>\n<p>extrait et source : <a href=\"https:\/\/www.courrierinternational.com\/article\/astrophysique-et-si-lhypothetique-planete-9-etait-un-trou-noir-de-la-taille-dune-balle-de\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/www.courrierinternational.com\/<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"19782\">(473)<\/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>Selon des chercheurs, la potentielle neuvi\u00e8me plan\u00e8te, qui se situerait aux confins de notre Syst\u00e8me solaire, pourrait \u00eatre un trou&#8230;<\/p>\n","protected":false},"author":1,"featured_media":19783,"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":"Et si la plan\u00e8te 9 \u00e9tait un trou noir ? @laterredufutur.com Terra Projects","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}},"categories":[22],"tags":[7264,7263,363,3197],"class_list":["post-19782","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-espace","tag-nine","tag-planete-9","tag-systeme-solaire","tag-trou-noir","wpcat-22-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/10\/trou-noir-planete9.png?fit=1105%2C771&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-594","jetpack-related-posts":[{"id":27369,"url":"https:\/\/www.laterredufutur.com\/accueil\/la-theorie-de-la-planete-y-suggere-lexistence-dun-monde-cache-de-la-taille-de-la-terre-dans-le-systeme-solaire-et-il-pourrait-etre-beaucoup-plus-proche-de-nous-que-la\/","url_meta":{"origin":19782,"position":0},"title":"La th\u00e9orie de la \u00ab Plan\u00e8te Y \u00bb sugg\u00e8re l&rsquo;existence d&rsquo;un monde cach\u00e9 de la taille de la Terre dans le syst\u00e8me solaire \u2014 et il pourrait \u00eatre beaucoup plus proche de nous que la \u00ab Plan\u00e8te Neuf \u00bb","author":"Admin","date":"17 octobre 2025","format":false,"excerpt":"Une nouvelle \u00e9tude a sugg\u00e9r\u00e9 l'existence de la Plan\u00e8te Y, une autre Plan\u00e8te Neuf, plus petite et plus proche de la Terre que l'hypoth\u00e9tique Plan\u00e8te X, que les astronomes traquent depuis pr\u00e8s de dix ans. Cependant, les preuves de l'existence de ce monde nouvellement th\u00e9oris\u00e9 ne sont pas d\u00e9finitives. 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\/2021\/09\/planete-x.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\/2021\/09\/planete-x.jpg?fit=1024%2C576&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/09\/planete-x.jpg?fit=1024%2C576&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/09\/planete-x.jpg?fit=1024%2C576&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":10682,"url":"https:\/\/www.laterredufutur.com\/accueil\/possible-existence-dune-9e-planete-dans-le-systeme-solaire\/","url_meta":{"origin":19782,"position":1},"title":"Possible existence d&rsquo;une 9e plan\u00e8te dans le syst\u00e8me solaire","author":"Admin","date":"20 janvier 2016","format":false,"excerpt":"Voici une information qui vient de tomber et des plus s\u00e9rieuses. Des scientifiques am\u00e9ricains disent avoir trouv\u00e9 des preuves de l'existence d'une neuvi\u00e8me plan\u00e8te dans le syst\u00e8me solaire. Des chercheurs am\u00e9ricains ont d\u00e9couvert des indications selon lesquelles une neuvi\u00e8me plan\u00e8te, tr\u00e8s grosse, existerait dans notre syst\u00e8me solaire, ont-ils indiqu\u00e9 mercredi.\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\/01\/neuvieme-planete-systeme-solaire.jpg?fit=831%2C494&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/01\/neuvieme-planete-systeme-solaire.jpg?fit=831%2C494&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/01\/neuvieme-planete-systeme-solaire.jpg?fit=831%2C494&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/01\/neuvieme-planete-systeme-solaire.jpg?fit=831%2C494&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":22861,"url":"https:\/\/www.laterredufutur.com\/accueil\/quest-ce-que-la-planete-neuf-planete-x-et-existe-t-elle\/","url_meta":{"origin":19782,"position":2},"title":"Qu&rsquo;est-ce que la plan\u00e8te neuf (plan\u00e8te X) et existe-t-elle ?","author":"Admin","date":"3 ao\u00fbt 2021","format":false,"excerpt":"La Plan\u00e8te Neuf - \u00e9galement appel\u00e9e Plan\u00e8te X - est un objet massif et hypoth\u00e9tique qui se trouve sur une orbite elliptique bien au-del\u00e0 de Pluton, \u00e0 une distance telle qu'il lui faudrait 10 000 \u00e0 20 000 ann\u00e9es terrestres pour faire un tour complet du Soleil. Bien qu'aucune observation\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\/2021\/08\/planete-x-planete-neuf-1.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\/2021\/08\/planete-x-planete-neuf-1.jpg?fit=1024%2C415&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/08\/planete-x-planete-neuf-1.jpg?fit=1024%2C415&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/08\/planete-x-planete-neuf-1.jpg?fit=1024%2C415&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":23006,"url":"https:\/\/www.laterredufutur.com\/accueil\/une-nouvelle-etude-renforce-les-preuves-de-lexistence-dune-neuvieme-planete\/","url_meta":{"origin":19782,"position":3},"title":"Une nouvelle \u00e9tude renforce les preuves de l&rsquo;existence d&rsquo;une neuvi\u00e8me plan\u00e8te !","author":"Admin","date":"10 septembre 2021","format":false,"excerpt":"En 2016, des astronomes de l'Universit\u00e9 de Californie, dans un article publi\u00e9 dans l'Astronomical Journal, ont th\u00e9oris\u00e9 l'existence d'une plan\u00e8te encore non d\u00e9couverte dans les confins du syst\u00e8me solaire. L'article fonde son hypoth\u00e8se sur les anomalies que pr\u00e9sentent les objets de la ceinture de Kuiper et selon leurs orbites autour\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\/2021\/09\/planete-x.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\/2021\/09\/planete-x.jpg?fit=1024%2C576&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/09\/planete-x.jpg?fit=1024%2C576&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/09\/planete-x.jpg?fit=1024%2C576&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":24759,"url":"https:\/\/www.laterredufutur.com\/accueil\/une-planete-geante-semble-se-cacher-quelque-part-dans-notre-systeme-solaire\/","url_meta":{"origin":19782,"position":4},"title":"Une plan\u00e8te g\u00e9ante semble se cacher quelque part dans notre syst\u00e8me solaire","author":"Admin","date":"19 f\u00e9vrier 2023","format":false,"excerpt":"Notre syst\u00e8me solaire est un endroit tr\u00e8s int\u00e9ressant. Des millions d'objets s'y d\u00e9placent, des plan\u00e8tes aux lunes, en passant par les com\u00e8tes et les ast\u00e9ro\u00efdes. Et chaque ann\u00e9e, nous d\u00e9couvrons de plus en plus d'objets (g\u00e9n\u00e9ralement de petits ast\u00e9ro\u00efdes ou des com\u00e8tes rapides) qui ont \u00e9lu domicile dans le syst\u00e8me\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\/2021\/11\/planete-9.jpg?fit=1024%2C683&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/11\/planete-9.jpg?fit=1024%2C683&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/11\/planete-9.jpg?fit=1024%2C683&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/11\/planete-9.jpg?fit=1024%2C683&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":24007,"url":"https:\/\/www.laterredufutur.com\/accueil\/objectif-uranus\/","url_meta":{"origin":19782,"position":5},"title":"Objectif Uranus","author":"Admin","date":"2 mai 2022","format":false,"excerpt":"Le 19 avril 2022, les Acad\u00e9mies am\u00e9ricaines des sciences, de l\u2019ing\u00e9nierie et de la m\u00e9decine ont publi\u00e9 un imposant rapport de pr\u00e8s de 800 pages sur les explorations plan\u00e9taires \u00e0 mener dans les dix ans \u00e0 venir. Elles estiment que, en plus de la mission de retour d\u2019\u00e9chantillons martiens, priorit\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\/2020\/11\/uranus.jpg?fit=1200%2C705&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/11\/uranus.jpg?fit=1200%2C705&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/11\/uranus.jpg?fit=1200%2C705&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/11\/uranus.jpg?fit=1200%2C705&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/11\/uranus.jpg?fit=1200%2C705&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/19782","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=19782"}],"version-history":[{"count":2,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/19782\/revisions"}],"predecessor-version":[{"id":20088,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/19782\/revisions\/20088"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/19783"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=19782"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=19782"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=19782"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}