{"id":448,"date":"2017-04-11T09:57:00","date_gmt":"2017-04-11T07:57:00","guid":{"rendered":"https:\/\/kids.esa.int\/future_astronauts_could_use_moondust_to_produce_power\/"},"modified":"2026-10-08T00:28:19","modified_gmt":"2026-10-07T22:28:19","slug":"future_astronauts_could_use_moondust_to_produce_power","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fr\/future_astronauts_could_use_moondust_to_produce_power\/","title":{"rendered":"De futurs astronautes pourraient utiliser la poussi\u00e8re lunaire pour produire de l'\u00e9nergie"},"content":{"rendered":"<div class=\"lede\">\n<p>Sur Terre, nous n\u2019avons jamais besoin d\u2019attendre tr\u00e8s longtemps avant de voir la lumi\u00e8re du Soleil. Toutes les 24 heures, notre plan\u00e8te effectue un tour complet autour de son axe, ce qui engendre un cycle d\u2019un jour et d\u2019une nuit. Mais que se passerait-il si nous \u00e9tions sur la Lune, dont l\u2019orbite est compl\u00e8tement diff\u00e9rente ? Sur la Lune, il y a de la lumi\u00e8re pendant 14 jours, puis l\u2019obscurit\u00e9 r\u00e8gne pendant 14 autres jours.<\/p>\n<\/div>\n<p>Ce ph\u00e9nom\u00e8ne pose un v\u00e9ritable probl\u00e8me pour les futures missions humaines d\u2019exploration lunaire, car la lumi\u00e8re du Soleil est essentielle pour que nous puissions produire de l\u2019\u00e9lectricit\u00e9 \u00e0 l\u2019aide de panneaux solaires. Cela a toujours \u00e9t\u00e9 la seule option de production \u00e9nerg\u00e9tique... jusqu\u2019\u00e0 maintenant ! Des chercheurs de l\u2019ESA d\u00e9veloppent une nouvelle m\u00e9thode pour utiliser la couche de poussi\u00e8re qui recouvre la Lune comme une sorte de batterie. Pendant chaque journ\u00e9e sur la Lune, la poussi\u00e8re lunaire absorbe et stocke l\u2019\u00e9nergie \u00e9mise via la lumi\u00e8re du Soleil. Cette \u00e9nergie pourrait-elle \u00eatre utilis\u00e9e pendant la nuit pour produire de l\u2019\u00e9lectricit\u00e9 ?<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1920\" data-credit=\"Jorge Ma\u00f1es Rubio. Spatial design &amp; visualisation in collaboration with DITISHOE http:\/\/ditishoe.com\/\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/04\/The_Moon_is_covered_with_moondust\" 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\/2017\/04\/the_moon_is_covered_with_moondust\/17895757-2-eng-GB\/The_Moon_is_covered_with_moondust.jpg\" alt=\"The Moon is covered with moondust\"><figcaption>The Moon is covered with moondust<\/figcaption><\/figure>\n<p>Des chercheurs en sont convaincus. Leur id\u00e9e consiste \u00e0 utiliser un ensemble de miroirs pour refl\u00e9ter la lumi\u00e8re du Soleil dans certaines zones de poussi\u00e8re lunaire. Un appareil appel\u00e9 moteur thermique y serait pr\u00e9alablement plac\u00e9. Pendant la journ\u00e9e, la temp\u00e9rature de la poussi\u00e8re lunaire \u00e0 proximit\u00e9 du moteur thermique pourrait d\u00e9passer une centaine de degr\u00e9s ! Toute cette chaleur serait alors stock\u00e9e dans la poussi\u00e8re lunaire.<\/p>\n<p>Une fois la nuit arriv\u00e9e, la poussi\u00e8re lunaire rel\u00e2cherait alors graduellement son \u00e9nergie, ce qui alimenterait le moteur thermique et permettrait de fournir de l\u2019\u00e9lectricit\u00e9 pour les astronautes \u00e9voluant \u00e0 la surface de la Lune !<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1761\" data-credit=\"JAXA\/NHK\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/04\/This_photo_shows_what_Earth_looks_like_from_the_Moon\" 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\/2017\/04\/this_photo_shows_what_earth_looks_like_from_the_moon\/17876628-2-eng-GB\/This_photo_shows_what_Earth_looks_like_from_the_Moon.jpg\" alt=\"This photo shows what Earth looks like from the Moon\"><figcaption>This photo shows what Earth looks like from the Moon<\/figcaption><\/figure>\n<p>Si tout fonctionne comme pr\u00e9vu, les moteurs thermiques pourraient s\u2019av\u00e9rer moins on\u00e9reux et plus efficaces que des panneaux solaires... ou que des g\u00e9n\u00e9rateurs thermiques \u00e0 radioisotopes, qui constituent une autre m\u00e9thode de production \u00e9nerg\u00e9tique. Les chercheurs de l\u2019ESA vont maintenant s\u2019attacher \u00e0 cr\u00e9er une simulation num\u00e9rique du moteur thermique. Ils pourront ensuite fabriquer un petit prototype afin d'effectuer des tests !<\/p>\n<p>Aimeriez-vous vivre sur une base de la Lune aliment\u00e9e par un moteur thermique \u00e0 poussi\u00e8re lunaire ?<\/p>\n<p><b>Fait int\u00e9ressant :<\/b> During night-time, the Moon\u2019s surface gets incredibly cold \u2013 sometimes below -170\u00b0C!<\/p>","protected":false},"excerpt":{"rendered":"<p>Living on Earth, we never have to wait very long before seeing sunlight. Every 24 hours our planet spins on its axis once, giving us one day and one night. [&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\/2017\/04\/here_is_an_idea_for_a_future_building_on_the_moon\/17903455-2-eng-GB\/Here_is_an_idea_for_a_future_building_on_the_Moon.jpg","esa_banner_description":"Here is an idea for a future building on the Moon","esa_banner_credit":"Jorge Ma\u00f1es Rubio. Spatial design & visualisation in collaboration with DITISHOE http:\/\/ditishoe.com\/","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/04\/Here_is_an_idea_for_a_future_building_on_the_Moon","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":[10,11,12],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-448","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-planets-and-moons"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/448","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=448"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/448\/revisions"}],"predecessor-version":[{"id":4484,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/448\/revisions\/4484"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/media?parent=448"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/categories?post=448"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/tags?post=448"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/panel?post=448"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/language?post=448"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/age?post=448"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/duration?post=448"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/resource_type?post=448"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/audience?post=448"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/wf_post_folders?post=448"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}