{"id":9034,"date":"2023-05-13T20:37:45","date_gmt":"2023-05-13T20:37:45","guid":{"rendered":"https:\/\/www.africa-press.net\/comores\/politique\/la-terre-sera-avalee-par-le-soleil-selon-des-scientifiques"},"modified":"2023-05-13T21:55:58","modified_gmt":"2023-05-13T21:55:58","slug":"la-terre-sera-avalee-par-le-soleil-selon-des-scientifiques","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/comores\/toutes-les-actualites\/la-terre-sera-avalee-par-le-soleil-selon-des-scientifiques","title":{"rendered":"La Terre sera aval\u00e9e par le Soleil, selon des scientifiques"},"content":{"rendered":"

Africa-Press – Comores. <\/strong><\/span>Pour la toute premie\u0300re fois, des scientifiques ont eu un aperc\u0327u de ce qui se passera lorsque le soleil engloutira Mercure, Ve\u0301nus et peut-e\u0302tre me\u0302me la Terre. Ils ont en effet observe\u0301 une e\u0301toile de notre galaxie, la Voie lacte\u0301e, en train d\u2019engloutir une plane\u0300te situe\u0301e a\u0300 seulement 12 000 anne\u0301es-lumie\u0300re.<\/p>\n

Jusqu\u2019a\u0300 pre\u0301sent, les astronomes n\u2019avaient jamais observe\u0301 d\u2019e\u0301toiles en train de de\u0301vorer des plane\u0300tes entie\u0300res. En effet, ils n\u2019avaient observe\u0301 des plane\u0300tes qu\u2019avant et apre\u0300s avoir e\u0301te\u0301 avale\u0301es par une e\u0301toile.<\/p>\n

Re\u0301cemment, des scientifiques ont observe\u0301 une e\u0301toile dont la luminosite\u0301 a e\u0301te\u0301 multiplie\u0301e par un facteur de 100 en une semaine seulement avant de s\u2019estomper rapidement.<\/p>\n

Selon eux, l\u2019engloutissement d\u2019une plane\u0300te voisine par une e\u0301toile, probablement chaude et de la taille de Jupiter, est la seule chose qui ait pu faire coi\u0308ncider les deux e\u0301ve\u0301nements.<\/p>\n

L\u2019observation donne un aperc\u0327u sombre de l\u2019avenir de la Terre. Le Soleil finira par s\u2019e\u0301teindre, mais cela ne se produira pas avant des milliards d\u2019anne\u0301es. Lorsqu\u2019il le fera, il consumera les plane\u0300tes inte\u0301rieures du syste\u0300me solaire.<\/p>\n

L\u2019auteur principal de l\u2019e\u0301tude, Kishalay De, du MIT Kavli Institute for Astrophysics and Space Research, a de\u0301clare\u0301 : \u00ab Nous voyons l\u2019avenir de la Terre \u00bb.<\/p>\n

\u00ab Une nuit, j\u2019ai remarque\u0301 une e\u0301toile qui s\u2019est illumine\u0301e d\u2019un facteur 100 en l\u2019espace d\u2019une semaine. Je n\u2019avais jamais vu une e\u0301ruption stellaire aussi brillante. \u00bb<\/p>\n

M. De et ses colle\u0300gues ont commence\u0301 a\u0300 e\u0301tudier les donne\u0301es de l\u2019e\u0301toile a\u0300 partir d\u2019une came\u0301ra infrarouge un an apre\u0300s sa de\u0301couverte.<\/p>\n

Il poursuit : \u00ab Ces donne\u0301es infrarouges m\u2019ont presque fait tomber de ma chaise. La source e\u0301tait irrationnellement brillante dans l\u2019infrarouge proche. \u00bb<\/p>\n

Apre\u0300s son premier flash lumineux, l\u2019e\u0301toile a commence\u0301 a\u0300 e\u0301mettre un rayonnement plus froid, qui, selon les chercheurs, e\u0301tait probablement le gaz de l\u2019e\u0301toile qui a e\u0301te\u0301 projete\u0301 dans l\u2019espace et s\u2019est condense\u0301 en poussie\u0300re.<\/p>\n

Les scientifiques ont re\u0301alise\u0301 que le flash brillant et bru\u0302lant e\u0301tait probablement une plane\u0300te de la taille de Jupiter attire\u0301e dans l\u2019atmosphe\u0300re d\u2019une e\u0301toile mourante. La plane\u0300te a ensuite pe\u0301ne\u0301tre\u0301 dans le c\u0153ur de l\u2019e\u0301toile, produisant la poussie\u0300re glace\u0301e.<\/p>\n

\u00ab Depuis de nombreuses anne\u0301es, nous sommes en mesure de voir les plane\u0300tes avant et apre\u0300s qu\u2019elles ont e\u0301te\u0301 englouties par des e\u0301toiles \u00bb, a de\u0301clare\u0301 M. De. \u00ab Avant, les plane\u0300tes sont encore en orbite tre\u0300s proche de leur e\u0301toile, et apre\u0300s, les plane\u0300tes ont de\u0301ja\u0300 e\u0301te\u0301 englouties et les e\u0301toiles sont ge\u0301antes. \u00bb<\/p>\n

Il conclut : \u00ab Nous n\u2019avions jamais vu une e\u0301toile engloutir une plane\u0300te en temps re\u0301el alors que cette dernie\u0300re faisait face a\u0300 son destin. C\u2019est ce qui m\u2019enthousiasme le plus dans cette de\u0301couverte. \u00bb<\/p>\n

Pour plus d’informations et d’analyses sur la Comores<\/a>, suivez Africa-Press<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Africa-Press – Comores. Pour la toute premie\u0300re fois, des scientifiques ont eu un aperc\u0327u de ce qui se passera lorsque le soleil engloutira Mercure, Ve\u0301nus et peut-e\u0302tre me\u0302me la Terre. Ils ont en effet observe\u0301 une e\u0301toile de notre galaxie, la Voie lacte\u0301e, en train d\u2019engloutir une plane\u0300te situe\u0301e a\u0300 seulement 12 000 anne\u0301es-lumie\u0300re. Jusqu\u2019a\u0300 […]<\/p>\n","protected":false},"author":82,"featured_media":9033,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[36,53,45],"class_list":["post-9034","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-africa-press","tag-africa-press-comores","tag-comores"],"yoast_head":"\nLa Terre sera aval\u00e9e par le Soleil, selon des scientifiques - Comores<\/title>\n<meta name=\"description\" content=\"Pour la toute premie\u0300re fois, des scientifiques ont eu un aperc\u0327u de ce qui se passera lorsque le soleil engloutira Merc ...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.africa-press.net\/comores\/toutes-les-actualites\/la-terre-sera-avalee-par-le-soleil-selon-des-scientifiques\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"La Terre sera aval\u00e9e par le Soleil, selon des scientifiques\" \/>\n<meta property=\"og:description\" content=\"Pour la toute premie\u0300re fois, des scientifiques ont eu un aperc\u0327u de ce qui se passera lorsque le soleil engloutira Merc ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.africa-press.net\/comores\/toutes-les-actualites\/la-terre-sera-avalee-par-le-soleil-selon-des-scientifiques\" \/>\n<meta property=\"og:site_name\" content=\"Comores\" \/>\n<meta property=\"article:published_time\" content=\"2023-05-13T20:37:45+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-05-13T21:55:58+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/static.africa-press.net\/centrafricaine\/sites\/48\/2023\/05\/postQueueImg_1683994085.01.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"720\" \/>\n\t<meta property=\"og:image:height\" content=\"376\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"cfeditorfr\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"cfeditorfr\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.africa-press.net\/comores\/toutes-les-actualites\/la-terre-sera-avalee-par-le-soleil-selon-des-scientifiques#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.africa-press.net\/comores\/toutes-les-actualites\/la-terre-sera-avalee-par-le-soleil-selon-des-scientifiques\"},\"author\":{\"name\":\"cfeditorfr\",\"@id\":\"https:\/\/www.africa-press.net\/comores\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1\"},\"headline\":\"La Terre sera aval\u00e9e par le Soleil, selon des scientifiques\",\"datePublished\":\"2023-05-13T20:37:45+00:00\",\"dateModified\":\"2023-05-13T21:55:58+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.africa-press.net\/comores\/toutes-les-actualites\/la-terre-sera-avalee-par-le-soleil-selon-des-scientifiques\"},\"wordCount\":572,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/www.africa-press.net\/comores\/toutes-les-actualites\/la-terre-sera-avalee-par-le-soleil-selon-des-scientifiques#primaryimage\"},\"thumbnailUrl\":\"https:\/\/static.africa-press.net\/centrafricaine\/sites\/48\/2023\/05\/postQueueImg_1683994085.01.jpg\",\"keywords\":[\"Africa Press\",\"Africa Press-Comores\",\"Comores\"],\"articleSection\":[\"Divers\",\"Toutes les actualit\u00e9s\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.africa-press.net\/comores\/toutes-les-actualites\/la-terre-sera-avalee-par-le-soleil-selon-des-scientifiques#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.africa-press.net\/comores\/toutes-les-actualites\/la-terre-sera-avalee-par-le-soleil-selon-des-scientifiques\",\"url\":\"https:\/\/www.africa-press.net\/comores\/toutes-les-actualites\/la-terre-sera-avalee-par-le-soleil-selon-des-scientifiques\",\"name\":\"La Terre sera aval\u00e9e par le Soleil, selon des scientifiques - 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