{"id":492,"date":"2016-05-30T07:29:00","date_gmt":"2016-05-30T05:29:00","guid":{"rendered":"https:\/\/kids.esa.int\/the_aurora\/"},"modified":"2026-10-08T00:28:49","modified_gmt":"2026-10-07T22:28:49","slug":"the_aurora","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fr\/the_aurora\/","title":{"rendered":"Les aurores"},"content":{"rendered":"<div class=\"lede\">\n<p>Avez-vous d\u00e9j\u00e0 vu une aurore ? Ces magnifiques vagues de lumi\u00e8re qui embrasent le ciel nocturne laissent un souvenir inoubliable aux personnes ayant la chance d\u2019en contempler. Savez-vous \u00e0 quoi ce ph\u00e9nom\u00e8ne est d\u00fb ?<\/p>\n<\/div>\n<p>Tout commence avec notre \u00e9toile la plus proche, le Soleil. Le Soleil est incroyablement \u00e9nergique et g\u00e9n\u00e8re en permanence ce que l'on appelle le vent solaire, un flux de minuscules particules. Celles-ci s'\u00e9chappent dans l'espace et sont d\u00e9vi\u00e9es par le champ magn\u00e9tique qui entoure la Terre.<\/p>\n<p>Ce ph\u00e9nom\u00e8ne pourrait s\u2019arr\u00eater l\u00e0 mais, de temps en temps, d\u2019\u00e9normes \u00e9ruptions du Soleil renforcent la puissance du vent solaire. Les particules sont alors tellement charg\u00e9es en \u00e9nergie qu\u2019elles ne se contentent plus de simplement toucher notre champ magn\u00e9tique : elles le percutent violemment !<\/p>\n<p>Apr\u00e8s avoir percut\u00e9 notre champ magn\u00e9tique, les particules du vent solaire se redirigent vers les p\u00f4les Nord et Sud de notre plan\u00e8te, puis finissent par s\u2019\u00e9craser dans les gaz de notre atmosph\u00e8re. Toute cette \u00e9nergie est alors lib\u00e9r\u00e9e sous forme de lumi\u00e8re ! La collision entre les particules du vent solaire et l\u2019oxyg\u00e8ne se manifeste par une couleur verte absolument fabuleuse. L\u2019azote provoque quant \u00e0 lui de magnifiques teintes de bleu et de violet. C\u2019est ainsi que naissent les aurores.<\/p>\n<p>Les aurores ne sont pas exclusives \u00e0 la Terre. Certaines plan\u00e8tes de notre syst\u00e8me solaire, comme Saturne et Jupiter, poss\u00e8dent \u00e9galement un champ magn\u00e9tique. Les particules du vent solaire peuvent donc \u00e9galement le percuter, comme sur Terre ! Aimeriez-vous voyager vers une autre plan\u00e8te pour assister \u00e0 une aurore ?<\/p>\n<p><b>Fait int\u00e9ressant :<\/b> L'aurore tire son nom de la d\u00e9esse romaine de l'aube.<\/p>\n<nav class=\"related\" aria-label=\"\u00c0 lire \u00e9galement\">\n<h2 class=\"related__heading\">\u00c0 lire \u00e9galement<\/h2>\n<div class=\"grid related__grid\">\n<div class=\"grid-item\">\n<article class=\"card focuson agency\"><a class=\"card__link\" href=\"\/fr\/polarlys\/\"><\/p>\n<figure class=\"thumbnail\"><span class=\"dimmer\"><\/span><\/figure>\n<header class=\"entry\">\n<h3 class=\"heading\">danois<\/h3>\n<\/header>\n<p><\/a><\/article>\n<\/div>\n<div class=\"grid-item\">\n<article class=\"card focuson agency\"><a class=\"card__link\" href=\"\/fr\/aurora_of_het_poollicht\/\"><\/p>\n<figure class=\"thumbnail\"><span class=\"dimmer\"><\/span><\/figure>\n<header class=\"entry\">\n<h3 class=\"heading\">n\u00e9erlandais<\/h3>\n<\/header>\n<p><\/a><\/article>\n<\/div>\n<div class=\"grid-item\">\n<article class=\"card focuson agency\"><a class=\"card__link\" href=\"\/fr\/les_aurores\/\"><\/p>\n<figure class=\"thumbnail\"><span class=\"dimmer\"><\/span><\/figure>\n<header class=\"entry\">\n<h3 class=\"heading\">Fran\u00e7ais<\/h3>\n<\/header>\n<p><\/a><\/article>\n<\/div>\n<div class=\"grid-item\">\n<article class=\"card focuson agency\"><a class=\"card__link\" href=\"\/fr\/das_nordlicht\/\"><\/p>\n<figure class=\"thumbnail\"><span class=\"dimmer\"><\/span><\/figure>\n<header class=\"entry\">\n<h3 class=\"heading\">Allemand<\/h3>\n<\/header>\n<p><\/a><\/article>\n<\/div>\n<div class=\"grid-item\">\n<article class=\"card focuson agency\"><a class=\"card__link\" href=\"\/fr\/l_aurora\/\"><\/p>\n<figure class=\"thumbnail\"><span class=\"dimmer\"><\/span><\/figure>\n<header class=\"entry\">\n<h3 class=\"heading\">italien<\/h3>\n<\/header>\n<p><\/a><\/article>\n<\/div>\n<div class=\"grid-item\">\n<article class=\"card focuson agency\"><a class=\"card__link\" href=\"\/fr\/polarlyset\/\"><\/p>\n<figure class=\"thumbnail\"><span class=\"dimmer\"><\/span><\/figure>\n<header class=\"entry\">\n<h3 class=\"heading\">norv\u00e9gien<\/h3>\n<\/header>\n<p><\/a><\/article>\n<\/div>\n<div class=\"grid-item\">\n<article class=\"card focuson agency\"><a class=\"card__link\" href=\"\/fr\/zorza_polarna\/\"><\/p>\n<figure class=\"thumbnail\"><span class=\"dimmer\"><\/span><\/figure>\n<header class=\"entry\">\n<h3 class=\"heading\">polonais<\/h3>\n<\/header>\n<p><\/a><\/article>\n<\/div>\n<div class=\"grid-item\">\n<article class=\"card focuson agency\"><a class=\"card__link\" href=\"\/fr\/la_aurora\/\"><\/p>\n<figure class=\"thumbnail\"><span class=\"dimmer\"><\/span><\/figure>\n<header class=\"entry\">\n<h3 class=\"heading\">Espagnol<\/h3>\n<\/header>\n<p><\/a><\/article>\n<\/div>\n<div class=\"grid-item\">\n<article class=\"card focuson agency\"><a class=\"card__link\" href=\"\/fr\/auroran_norrskenet\/\"><\/p>\n<figure class=\"thumbnail\"><span class=\"dimmer\"><\/span><\/figure>\n<header class=\"entry\">\n<h3 class=\"heading\">su\u00e9dois<\/h3>\n<\/header>\n<p><\/a><\/article>\n<\/div>\n<\/div>\n<\/nav>","protected":false},"excerpt":{"rendered":"<p>Have you ever seen the aurora? A beautiful curtain of rippling light in the night sky, it is an awe-inspiring and unforgettable sight for those lucky enough to have witnessed [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2012\/09\/aurora_borealis2\/17887210-2-eng-GB\/Aurora_borealis.jpg","esa_banner_description":"Aurora borealis","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2012\/09\/Aurora_borealis2","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[10,11,35],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-492","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-the-sun"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/492","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/comments?post=492"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/492\/revisions"}],"predecessor-version":[{"id":1635,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/492\/revisions\/1635"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/media?parent=492"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/categories?post=492"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/tags?post=492"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/panel?post=492"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/language?post=492"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/age?post=492"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/duration?post=492"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/resource_type?post=492"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/audience?post=492"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/wf_post_folders?post=492"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}