{"id":362,"date":"2018-11-06T13:17:00","date_gmt":"2018-11-06T12:17:00","guid":{"rendered":"https:\/\/kids.esa.int\/space_weather_week\/"},"modified":"2026-10-08T00:27:17","modified_gmt":"2026-10-07T22:27:17","slug":"space_weather_week","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fr\/space_weather_week\/","title":{"rendered":"Semaine de la m\u00e9t\u00e9orologie spatiale !"},"content":{"rendered":"<div class=\"lede\">\n<p>Quel temps fait-il chez vous aujourd\u2019hui ? Nous sommes tous habitu\u00e9s \u00e0 consulter les pr\u00e9visions m\u00e9t\u00e9orologiques pour savoir comment le temps va affecter notre journ\u00e9e. Saviez-vous que l\u2019espace avait \u00e9galement sa propre m\u00e9t\u00e9o ? La semaine de la m\u00e9t\u00e9orologie spatiale, qui aura lieu du 5 au 9 novembre 2018, vous donnera l\u2019occasion d\u2019en savoir plus !<\/p>\n<\/div>\n<p>Le Soleil \u00e9met des particules charg\u00e9es en \u00e9nergie, plus connues sous le nom de vent solaire. Ces particules peuvent impacter le champ magn\u00e9tique qui entoure notre plan\u00e8te, en provoquant des ph\u00e9nom\u00e8nes aussi insolites que magnifiques tels que les aurores. Notre secteur du syst\u00e8me solaire peut \u00e9galement \u00eatre influenc\u00e9 par des particules \u00e9nerg\u00e9tiques comme les rayons cosmiques ! L\u2019\u00e9tude des conditions qui r\u00e9sultent de ces particules s'appelle la m\u00e9t\u00e9orologie spatiale.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"720\" data-credit=\"SOHO (ESA &amp; NASA)\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/11\/Solar_eruption_larger_than_Earth\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2018\/11\/solar_eruption_larger_than_earth\/17882955-2-eng-GB\/Solar_eruption_larger_than_Earth.jpg\" alt=\"Solar eruption larger than Earth\"><figcaption>Une \u00e9ruption solaire plus grande que la Terre<\/figcaption><\/figure>\n<p>La plupart du temps, les conditions m\u00e9t\u00e9o spatiales ne nous affectent pas, c\u2019est pourquoi nous n\u2019avons pas besoin d\u2019\u00e9tudier la m\u00e9t\u00e9orologie spatiale avant de quitter nos logements ! Les \u00e9quipes scientifiques de l\u2019ESA y accordent malgr\u00e9 tout une grande importance, car les vents solaires les plus puissants peuvent perturber ou endommager les satellites en orbite, mais aussi les r\u00e9seaux \u00e9nerg\u00e9tiques sur Terre. Imaginez si nous nous retrouvions sans GPS, t\u00e9l\u00e9phones portables ou \u00e9lectricit\u00e9 ! Cela serait \u00e9videmment tr\u00e8s perturbant, et r\u00e9parer les d\u00e9g\u00e2ts prendrait du temps et de l\u2019argent. L\u2019ESA estime que les pr\u00e9judices caus\u00e9s par les \u00e9v\u00e9nements m\u00e9t\u00e9orologiques spatiaux les plus extr\u00eames pourraient se chiffrer \u00e0 pr\u00e8s de 15 milliards d\u2019euros, soit une somme consid\u00e9rable !<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"3500\" data-credit=\"Space Situational Awareness: Space Weather\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/11\/Space_Situational_Awareness_Space_Weather\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2018\/11\/space_situational_awareness_space_weather\/18246476-2-eng-GB\/Space_Situational_Awareness_Space_Weather.jpg\" alt=\"Space Situational Awareness: Space Weather\"><figcaption>Surveillance de la situation spatiale : M\u00e9t\u00e9o spatiale<\/figcaption><\/figure>\n<p>Les temp\u00eates solaires sont particuli\u00e8rement dangereuses pour les astronautes dans l\u2019espace. Sans le champ magn\u00e9tique protecteur de la Terre, les \u00e9quipes de la Station spatiale internationale seraient expos\u00e9es \u00e0 un rayonnement beaucoup trop important. Si jamais nous devions un jour voyager jusqu\u2019\u00e0 la plan\u00e8te Mars, il faudrait contr\u00f4ler la m\u00e9t\u00e9orologie spatiale avec attention, car les vents solaires les plus forts pourraient engendrer des rayonnements mortellement dangereux. Les astronautes devraient alors se r\u00e9fugier dans un compartiment sp\u00e9cial de leur vaisseau.<\/p>\n<p>Alors que nous avons de plus en plus souvent recours aux satellites et que nous envisageons de nous aventurer encore plus loin dans l\u2019espace, nos connaissances sur la m\u00e9t\u00e9orologie spatiale vont s\u2019av\u00e9rer essentielles afin d'assurer notre s\u00e9curit\u00e9.<\/p>\n<p><b>Fait int\u00e9ressant :<\/b> Le programme de surveillance de la situation spatiale de l'ESA utilise des instruments situ\u00e9s dans l'espace et sur Terre pour surveiller la m\u00e9t\u00e9o spatiale !<\/p>","protected":false},"excerpt":{"rendered":"<p>What is the weather like where you are today? We are all used to checking the weather forecast and thinking about how it will affect our day. But did you [&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\/2018\/11\/space_weather_effects\/17903085-2-eng-GB\/Space_weather_effects.jpg","esa_banner_description":"Space weather effects","esa_banner_credit":"ESA\/Science Office, CC BY-SA 3.0 IGO","esa_banner_licence":"CC BY-SA 3.0 IGO or ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/11\/Space_weather_effects","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":[26],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-362","post","type-post","status-publish","format-standard","hentry","category-news"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/362","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=362"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/362\/revisions"}],"predecessor-version":[{"id":4410,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/362\/revisions\/4410"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/media?parent=362"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/categories?post=362"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/tags?post=362"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/panel?post=362"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/language?post=362"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/age?post=362"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/duration?post=362"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/resource_type?post=362"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/audience?post=362"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/wf_post_folders?post=362"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}