{"id":26041,"date":"2024-07-10T12:00:35","date_gmt":"2024-07-10T10:00:35","guid":{"rendered":"https:\/\/www.laterredufutur.com\/accueil\/?p=26041"},"modified":"2024-07-01T09:28:02","modified_gmt":"2024-07-01T07:28:02","slug":"des-formes-etranges-ont-ete-observees-dans-la-haute-atmosphere-terrestre","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/des-formes-etranges-ont-ete-observees-dans-la-haute-atmosphere-terrestre\/","title":{"rendered":"Des formes \u00e9tranges ont \u00e9t\u00e9 observ\u00e9es dans la haute atmosph\u00e8re terrestre"},"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>Des scientifiques de la NASA ont d\u00e9couvert une sorte de soupe de formes \u00e9tranges dans l&rsquo;ionosph\u00e8re, la partie de l&rsquo;atmosph\u00e8re terrestre qui se trouve \u00e0 environ 48-965 kilom\u00e8tres au-dessus de nos t\u00eates, et cette d\u00e9couverte pourrait contribuer \u00e0 am\u00e9liorer les pr\u00e9visions de m\u00e9t\u00e9orologie spatiale et les communications radio.<\/p>\n<p>Des formes de ce type ont d\u00e9j\u00e0 \u00e9t\u00e9 d\u00e9tect\u00e9es, mais l&rsquo;instrument d&rsquo;imagerie GOLD (Global-scale Observations of the Limb and Disk) utilis\u00e9 ici nous permet de les observer au mieux jusqu&rsquo;\u00e0 pr\u00e9sent, r\u00e9v\u00e9lant d&rsquo;\u00e9tranges formes en X et en C apparaissant \u00e0 des moments inattendus et dans des endroits surprenants.<\/p>\n<p>L&rsquo;ionosph\u00e8re se charge \u00e9lectriquement au cours de la journ\u00e9e lorsque la lumi\u00e8re du soleil la frappe, ce qui cr\u00e9e des bandes de plasma de particules charg\u00e9es qui sont encore influenc\u00e9es par le champ magn\u00e9tique de la Terre. Les cr\u00eates et les bulles de plasma forment les formes observ\u00e9es aujourd&rsquo;hui.<\/p>\n<figure id=\"attachment_26042\" aria-describedby=\"caption-attachment-26042\" style=\"width: 642px\" class=\"wp-caption alignnone\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"26042\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/des-formes-etranges-ont-ete-observees-dans-la-haute-atmosphere-terrestre\/plasmax\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/07\/PlasmaX.jpg?fit=642%2C498&amp;ssl=1\" data-orig-size=\"642,498\" 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=\"PlasmaX\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;L&amp;rsquo;une des formes X observ\u00e9es par les scientifiques. (Laskar et al., The Journal of Geophysical Research : Space Physics, 2024)&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/07\/PlasmaX.jpg?fit=642%2C498&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/07\/PlasmaX.jpg?resize=642%2C498&#038;ssl=1\" alt=\"\" width=\"642\" height=\"498\" class=\"size-full wp-image-26042\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/07\/PlasmaX.jpg?w=642&amp;ssl=1 642w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/07\/PlasmaX.jpg?resize=300%2C233&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/07\/PlasmaX.jpg?resize=70%2C53&amp;ssl=1 70w\" sizes=\"auto, (max-width: 642px) 100vw, 642px\" \/><figcaption id=\"caption-attachment-26042\" class=\"wp-caption-text\">L&rsquo;une des formes X observ\u00e9es par les scientifiques. (Laskar et al., The Journal of Geophysical Research : Space Physics, 2024)<\/figcaption><\/figure>\n<p>Des \u00e9tudes ant\u00e9rieures ont montr\u00e9 que les cr\u00eates convergentes formaient un X apr\u00e8s les temp\u00eates solaires et les grandes \u00e9ruptions volcaniques, mais les donn\u00e9es de cette nouvelle \u00e9tude r\u00e9v\u00e8lent qu&rsquo;elles peuvent \u00e9galement se former pendant les p\u00e9riodes dites \u00ab\u00a0calmes\u00a0\u00bb, ce qui laisse supposer que des facteurs plus localis\u00e9s sont en jeu.<\/p>\n<p>Les mod\u00e8les informatiques sugg\u00e8rent que des conditions atmosph\u00e9riques plus basses pourraient tirer le plasma vers le bas.<\/p>\n<p>\u00ab\u00a0Les rapports ant\u00e9rieurs sur les fusions ne faisaient \u00e9tat que de conditions g\u00e9omagn\u00e9tiques perturb\u00e9es\u00a0\u00bb, explique Fazlul Laskar, physicien sp\u00e9cialiste de l&rsquo;ionosph\u00e8re \u00e0 l&rsquo;universit\u00e9 du Colorado.<\/p>\n<p>\u00ab\u00a0Il s&rsquo;agit d&rsquo;une caract\u00e9ristique inattendue dans des conditions de calme g\u00e9omagn\u00e9tique.<\/p>\n<p>L&rsquo;apparition de bulles en forme de C et de C invers\u00e9 dans le plasma est une autre d\u00e9couverte qui laisse les scientifiques perplexes. On pense que ces formes sont cr\u00e9\u00e9es par les vents sur Terre, tout comme la direction du vent peut influencer la fa\u00e7on dont un arbre s&rsquo;incline.<\/p>\n<figure id=\"attachment_26043\" aria-describedby=\"caption-attachment-26043\" style=\"width: 642px\" class=\"wp-caption alignnone\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"26043\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/des-formes-etranges-ont-ete-observees-dans-la-haute-atmosphere-terrestre\/c-shapes\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/07\/C-shapes.jpg?fit=642%2C321&amp;ssl=1\" data-orig-size=\"642,321\" 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=\"C-shapes\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;Les images de la mission GOLD de la NASA montrent des bulles de plasma en forme de C et en forme de C invers\u00e9 apparaissant \u00e0 proximit\u00e9 les unes des autres dans l&amp;rsquo;ionosph\u00e8re. (D. Karan et al., The Journal of Geophysical Research : Space Physics, 2023)&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/07\/C-shapes.jpg?fit=642%2C321&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/07\/C-shapes.jpg?resize=642%2C321&#038;ssl=1\" alt=\"\" width=\"642\" height=\"321\" class=\"size-full wp-image-26043\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/07\/C-shapes.jpg?w=642&amp;ssl=1 642w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/07\/C-shapes.jpg?resize=300%2C150&amp;ssl=1 300w\" sizes=\"auto, (max-width: 642px) 100vw, 642px\" \/><figcaption id=\"caption-attachment-26043\" class=\"wp-caption-text\">Les images de la mission GOLD de la NASA montrent des bulles de plasma en forme de C et en forme de C invers\u00e9 apparaissant \u00e0 proximit\u00e9 les unes des autres dans l&rsquo;ionosph\u00e8re. (D. Karan et al., The Journal of Geophysical Research : Space Physics, 2023)<\/figcaption><\/figure>\n<p>Cependant, GOLD a observ\u00e9 que ces C se formaient \u00e9tonnamment pr\u00e8s les uns des autres &#8211; parfois \u00e0 une distance de 634 kilom\u00e8tres (400 miles) &#8211; ce qui indique \u00e0 nouveau que des facteurs plus localis\u00e9s sont impliqu\u00e9s, qu&rsquo;il s&rsquo;agisse d&rsquo;un cisaillement de vent, d&rsquo;une tornade ou d&rsquo;autre chose.<\/p>\n<p>Pour l&rsquo;instant, les regroupements serr\u00e9s de formes en C semblent relativement rares, puisque GOLD n&rsquo;en a observ\u00e9 que deux jusqu&rsquo;\u00e0 pr\u00e9sent. Cependant, les chercheurs souhaitent les \u00e9tudier plus avant et d\u00e9couvrir ce qui les provoque dans l&rsquo;ionosph\u00e8re.<\/p>\n<p>\u00ab\u00a0\u00c0 une telle distance, ces deux bulles de plasma de forme oppos\u00e9e n&rsquo;avaient jamais \u00e9t\u00e9 imagin\u00e9es ni imag\u00e9es\u00a0\u00bb, explique Deepak Karan, physicien sp\u00e9cialiste de l&rsquo;ionosph\u00e8re \u00e0 l&rsquo;universit\u00e9 du Colorado.<\/p>\n<p>Le plasma de l&rsquo;ionosph\u00e8re est essentiel pour que les ondes radio puissent parcourir de longues distances, et les d\u00e9couvertes dans ce domaine nous permettent de mieux comprendre le fonctionnement de la radio et du GPS.<\/p>\n<p>Les perturbations de l&rsquo;ionosph\u00e8re telles que celles observ\u00e9es ici pourraient avoir un impact sur d&rsquo;importantes infrastructures de communication et de navigation.<\/p>\n<p>Cette \u00e9tude et les donn\u00e9es GOLD nous donnent un autre exemple de la fa\u00e7on dont l&rsquo;am\u00e9lioration de la technologie et les innovations dans la recherche scientifique nous aident \u00e0 mieux comprendre la Terre et l&rsquo;Univers qui l&rsquo;entoure, m\u00eame s&rsquo;ils changent et \u00e9voluent constamment.<\/p>\n<p>\u00ab\u00a0Le fait que nous ayons des bulles de formes tr\u00e8s diff\u00e9rentes si proches les unes des autres nous indique que la dynamique de l&rsquo;atmosph\u00e8re est plus complexe que pr\u00e9vu\u00a0\u00bb, d\u00e9clare l&rsquo;astrophysicien Jeffrey Klenzing du Goddard Space Flight Center de la NASA, qui n&rsquo;a pas \u00e9t\u00e9 directement impliqu\u00e9 dans l&rsquo;\u00e9tude.<\/p>\n<p>La recherche a \u00e9t\u00e9 publi\u00e9e dans <a href=\"https:\/\/agupubs.onlinelibrary.wiley.com\/doi\/10.1029\/2023JA032224\" rel=\"noopener\" target=\"_blank\">le Journal of Geophysical Research : Space Physics.<\/a><\/p>\n<figure id=\"attachment_26044\" aria-describedby=\"caption-attachment-26044\" style=\"width: 1024px\" class=\"wp-caption alignnone\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"26044\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/des-formes-etranges-ont-ete-observees-dans-la-haute-atmosphere-terrestre\/plasmaspace\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/07\/PlasmaSpace.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;1&quot;}\" data-image-title=\"PlasmaSpace\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;Des bandes de plasma sont cr\u00e9\u00e9es dans l&amp;rsquo;atmosph\u00e8re terrestre. (Studio de visualisation scientifique de la NASA)&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/07\/PlasmaSpace.jpg?fit=800%2C324&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/07\/PlasmaSpace.jpg?resize=1024%2C415&#038;ssl=1\" alt=\"\" width=\"1024\" height=\"415\" class=\"size-full wp-image-26044\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/07\/PlasmaSpace.jpg?w=1024&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/07\/PlasmaSpace.jpg?resize=300%2C122&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/07\/PlasmaSpace.jpg?resize=800%2C324&amp;ssl=1 800w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/07\/PlasmaSpace.jpg?resize=768%2C311&amp;ssl=1 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption id=\"caption-attachment-26044\" class=\"wp-caption-text\">Des bandes de plasma sont cr\u00e9\u00e9es dans l&rsquo;atmosph\u00e8re terrestre. (Studio de visualisation scientifique de la NASA)<\/figcaption><\/figure>\n<p>Adaptation <a href=\"https:\/\/www.laterredufutur.com\/accueil\/\" rel=\"noopener\" target=\"_blank\">Terra Projects<\/a><\/p>\n<p>Source : <a href=\"https:\/\/www.sciencealert.com\/strange-shapes-have-been-revealed-in-earths-upper-atmosphere\" rel=\"noopener\" target=\"_blank\">https:\/\/www.sciencealert.com\/<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"26041\">(344)<\/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>Des scientifiques de la NASA ont d\u00e9couvert une sorte de soupe de formes \u00e9tranges dans l&rsquo;ionosph\u00e8re, la partie de l&rsquo;atmosph\u00e8re&#8230;<\/p>\n","protected":false},"author":1,"featured_media":26044,"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":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[32],"tags":[252,55,2227,37,75],"class_list":["post-26041","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-meteorologie","tag-atmosphere","tag-meteo","tag-plasma","tag-soleil","tag-terre","wpcat-32-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/07\/PlasmaSpace.jpg?fit=1024%2C415&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-6M1","jetpack-related-posts":[{"id":24975,"url":"https:\/\/www.laterredufutur.com\/accueil\/leruption-du-tonga-en-2022-a-cree-une-super-bulle-de-plasma-tres-rare-dans-lionosphere\/","url_meta":{"origin":26041,"position":0},"title":"L&rsquo;\u00e9ruption du Tonga en 2022 a cr\u00e9\u00e9 une \u00ab\u00a0super bulle de plasma\u00a0\u00bb tr\u00e8s rare dans l&rsquo;ionosph\u00e8re","author":"Admin","date":"25 mai 2023","format":false,"excerpt":"La technologie \u00e9tant de plus en plus pr\u00e9sente dans notre vie quotidienne, il est de plus en plus important de comprendre la m\u00e9t\u00e9orologie spatiale et son impact sur la technologie. Lorsque l'on entend \"m\u00e9t\u00e9o spatiale\", on pense g\u00e9n\u00e9ralement \u00e0 d'\u00e9normes explosions sur le Soleil - des \u00e9jections de masse coronale\u2026","rel":"","context":"Dans &quot;Seismes\/Volcans&quot;","block_context":{"text":"Seismes\/Volcans","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/seismes-et-volcans\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/01\/explosion-volcanique-tonga.jpg?fit=1040%2C1120&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/01\/explosion-volcanique-tonga.jpg?fit=1040%2C1120&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/01\/explosion-volcanique-tonga.jpg?fit=1040%2C1120&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/01\/explosion-volcanique-tonga.jpg?fit=1040%2C1120&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":9537,"url":"https:\/\/www.laterredufutur.com\/accueil\/une-etudiante-australienne-confirme-que-des-tubes-de-plasma-geants-flottent-au-dessus-de-la-terre\/","url_meta":{"origin":26041,"position":1},"title":"Une \u00e9tudiante australienne confirme que des tubes de plasma g\u00e9ants flottent au-dessus de la Terre","author":"Admin","date":"24 novembre 2015","format":false,"excerpt":"Les astronomes ont pour la premi\u00e8re fois captur\u00e9 la preuve visuelle de l'existence de structures tubulaires de plasma dans les couches internes de la magn\u00e9tosph\u00e8re qui entourent la Terre. \"Depuis plus de 60 ans, les scientifiques croyaient en l'existence\u00a0de\u00a0ces structures, mais dans\u00a0leur imagerie et pour la premi\u00e8re fois, nous avons\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\/11\/tubes-plasma-terre.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\/2015\/11\/tubes-plasma-terre.jpg?fit=1024%2C415&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/11\/tubes-plasma-terre.jpg?fit=1024%2C415&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/11\/tubes-plasma-terre.jpg?fit=1024%2C415&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":22096,"url":"https:\/\/www.laterredufutur.com\/accueil\/lexistence-douragans-spatiaux-est-enfin-prouvee\/","url_meta":{"origin":26041,"position":2},"title":"L&rsquo;existence \u00ab\u00a0d&rsquo;ouragans spatiaux\u00a0\u00bb est enfin prouv\u00e9e","author":"Admin","date":"3 mars 2021","format":false,"excerpt":"Jusque-l\u00e0, l'existence d'ouragans dans les hautes atmosph\u00e8res des plan\u00e8tes \u00e9tait suppos\u00e9e, mais non prouv\u00e9e. Des ouragans qui se d\u00e9cha\u00eeneraient dans les hautes atmosph\u00e8res des plan\u00e8tes. Des sortes d'ouragans spatiaux. Les chercheurs avaient imagin\u00e9 leur existence. Et ils viennent tout juste de la d\u00e9montrer en observant l'un de ces ph\u00e9nom\u00e8nes au-dessus\u2026","rel":"","context":"Dans &quot;M\u00e9t\u00e9orologie&quot;","block_context":{"text":"M\u00e9t\u00e9orologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/meteorologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/03\/ouragan-spatial.jpeg?fit=916%2C391&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/03\/ouragan-spatial.jpeg?fit=916%2C391&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/03\/ouragan-spatial.jpeg?fit=916%2C391&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/03\/ouragan-spatial.jpeg?fit=916%2C391&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":27735,"url":"https:\/\/www.laterredufutur.com\/accueil\/les-eruptions-solaires-pourraient-declencher-des-tremblements-de-terre-selon-une-etude-controversee\/","url_meta":{"origin":26041,"position":3},"title":"Les \u00e9ruptions solaires pourraient d\u00e9clencher des tremblements de terre, selon une \u00e9tude controvers\u00e9e","author":"Admin","date":"27 f\u00e9vrier 2026","format":false,"excerpt":"Des chercheurs ont \u00e9mis l'hypoth\u00e8se que des changements dans l'ionosph\u00e8re terrestre pourraient d\u00e9clencher des forces \u00e9lectriques qui pousseraient les zones fragiles de la cro\u00fbte terrestre \u00e0 provoquer un tremblement de terre. Les \u00e9ruptions solaires perturbent souvent la haute atmosph\u00e8re terrestre et contribuent \u00e0 alimenter de magnifiques aurores bor\u00e9ales. Aujourd'hui, les\u2026","rel":"","context":"Dans &quot;Seismes\/Volcans&quot;","block_context":{"text":"Seismes\/Volcans","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/seismes-et-volcans\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/Soleil-le-20-mai-2024.jpg?fit=642%2C642&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/Soleil-le-20-mai-2024.jpg?fit=642%2C642&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/Soleil-le-20-mai-2024.jpg?fit=642%2C642&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":24740,"url":"https:\/\/www.laterredufutur.com\/accueil\/les-scientifiques-affirment-que-lenorme-vortex-polaire-du-soleil-est-sans-precedent\/","url_meta":{"origin":26041,"position":4},"title":"Les scientifiques affirment que l&rsquo;\u00e9norme \u00ab\u00a0vortex polaire\u00a0\u00bb du soleil est sans pr\u00e9c\u00e9dent","author":"Admin","date":"13 f\u00e9vrier 2023","format":false,"excerpt":"Une longue boucle de filament de plasma s'est d\u00e9tach\u00e9 sur le p\u00f4le nord du soleil, cr\u00e9ant un \"vortex polaire\" que les scientifiques ne peuvent expliquer. Le 2 f\u00e9vrier 2023, un \u00e9norme tentacule de plasma s'est bris\u00e9 dans l'atmosph\u00e8re du soleil avant de retomber, de tourner autour du p\u00f4le nord de\u2026","rel":"","context":"Dans &quot;Soleil&quot;","block_context":{"text":"Soleil","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/soleil\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/02\/soleil-vortex-polaire.webp?fit=871%2C490&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/02\/soleil-vortex-polaire.webp?fit=871%2C490&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/02\/soleil-vortex-polaire.webp?fit=871%2C490&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/02\/soleil-vortex-polaire.webp?fit=871%2C490&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":18107,"url":"https:\/\/www.laterredufutur.com\/accueil\/que-sont-les-cycles-solaires-et-comment-nous-affectent-ils\/","url_meta":{"origin":26041,"position":5},"title":"Que sont les cycles solaires et comment nous affectent-ils?","author":"Admin","date":"26 janvier 2019","format":false,"excerpt":"Pendant plus de quatre milliards d'ann\u00e9es, la lumi\u00e8re et la chaleur du soleil ont grandement influenc\u00e9 les conditions atmosph\u00e9riques et m\u00e9t\u00e9orologiques de la plan\u00e8te. Cependant, l'\u00e9nergie \u00e9mise par le soleil n'est pas constante ; elle augmente et diminue p\u00e9riodiquement. Cette variation p\u00e9riodique - qui se produit au cours d\u2019un \u00abcycle\u2026","rel":"","context":"Dans &quot;Soleil&quot;","block_context":{"text":"Soleil","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/soleil\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/01\/coucher-de-soleil.jpg?fit=960%2C638&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/01\/coucher-de-soleil.jpg?fit=960%2C638&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/01\/coucher-de-soleil.jpg?fit=960%2C638&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/01\/coucher-de-soleil.jpg?fit=960%2C638&ssl=1&resize=700%2C400 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/26041","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=26041"}],"version-history":[{"count":3,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/26041\/revisions"}],"predecessor-version":[{"id":26047,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/26041\/revisions\/26047"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/26044"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=26041"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=26041"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=26041"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}