{"id":3917,"date":"2007-03-29T18:39:19","date_gmt":"2007-03-29T16:39:19","guid":{"rendered":"http:\/\/www.laterredufutur.com\/accueil1\/?p=3917"},"modified":"2015-04-11T18:45:24","modified_gmt":"2015-04-11T16:45:24","slug":"lespace-en-passe-de-devenir-une-poubelle","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/lespace-en-passe-de-devenir-une-poubelle\/","title":{"rendered":"L\u2019espace en passe de devenir une poubelle"},"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 align=\"justify\"><span style=\"font-size: small;\">On savait d\u00e9j\u00e0 que l\u2019eau, la terre et l\u2019air \u00e9taient en majeure partie pollu\u00e9s, mais la main de l\u2019homme est \u00e9galement lourde dans l\u2019espace.<\/span><\/p>\n<p align=\"justify\"><span style=\"font-size: small;\">Un demi-si\u00e8cle d\u2019exploration spatiale a g\u00e9n\u00e9r\u00e9 une pollution in\u00e9vitable et plusieurs scientifiques am\u00e9ricains tirent dor\u00e9navant la sonnette d\u2019alarme avec des dizaines de millions de d\u00e9chets spatiaux autour de la plan\u00e8te.<\/span><\/p>\n<p align=\"justify\"><span style=\"font-size: small;\">Sans compter les vieux satellites devenus obsol\u00e8tes, les outils laiss\u00e9s sur place par les astronautes, etc., chaque lancement de fus\u00e9e laisse en orbite ses diff\u00e9rents \u00e9tages qui, en se s\u00e9parant, lib\u00e8rent \u00e0 leur tour de petits fragments\u2026 Ainsi, selon les \u00e9valuations, des millions d\u2019objets tournent autour de la Terre sans aucun contr\u00f4le, dont plus de 10 000 d\u00e9passants les 10 centim\u00e8tres (on en pr\u00e9voit 5 fois d\u2019ici un si\u00e8cle).<\/span><\/p><div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"2\" 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\n<p align=\"justify\"><span style=\"font-size: small;\">En 50 ans, le nombre d\u2019objets dans l\u2019espace a d\u2019ores et d\u00e9j\u00e0 d\u00e9pass\u00e9 la masse critique o\u00f9 la \u00ab\u00a0r\u00e9action en cha\u00eene\u00a0\u00bb semble in\u00e9vitable. Chaque collision entre d\u00e9bris cr\u00e9e en effet d\u2019autres d\u00e9bris, et ainsi de suite. De plus, ces d\u00e9chets sont une menace permanente pour les satellites en activit\u00e9 et les stations spatiales valant plusieurs milliards de dollars. M\u00eame s\u2019ils semblent n\u00e9gligeables par leur taille, leur vitesse moyenne de 7 km par seconde rend tout impact catastrophique et aucun blindage actuel ne r\u00e9siste aux objets ayant une taille sup\u00e9rieure \u00e0 1 ou 2 cm.<\/span><\/p>\n<p align=\"justify\"><span style=\"font-size: small;\">Par leur d\u00e9placement en orbite basse, le frottement des objets dans l\u2019atmosph\u00e8re entra\u00eene une usure naturelle sur une dur\u00e9e de 1 \u00e0 deux si\u00e8cles, mais sur les orbites plus \u00e9lev\u00e9es le temps se compte en mill\u00e9naires voire beaucoup plus\u2026 L\u2019id\u00e9al serait donc de r\u00e9cup\u00e9rer ces d\u00e9chets spatiaux, mais \u00e0 l\u2019heure actuelle aucune solution technique viable ne se d\u00e9gage pour les collecter, ce qui n\u2019emp\u00eache pas des soci\u00e9t\u00e9s de proposer l\u2019envoi d\u2019urnes fun\u00e9raires dans l\u2019espace. Le paradis ressemblerait-il \u00e0 une vaste poubelle ?<br \/>\n<\/span><\/p>\n<p align=\"justify\"><span style=\"font-size: small;\">source : <\/span><a href=\"http:\/\/www.univers-nature.com\/\"><span style=\"font-size: small;\">http:\/\/www.univers-nature.com\/<\/span><\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"3917\">(348)<\/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>On savait d\u00e9j\u00e0 que l\u2019eau, la terre et l\u2019air \u00e9taient en majeure partie pollu\u00e9s, mais la main de l\u2019homme est&#8230;<\/p>\n","protected":false},"author":1,"featured_media":3918,"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":[22],"tags":[928,117,703,1283,3132,514,620,3133,3131],"class_list":["post-3917","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-espace","tag-debris","tag-espace","tag-impact","tag-orbite","tag-orbites","tag-poubelle","tag-spatial","tag-spatiaux","tag-usure","wpcat-22-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/debris.jpg?fit=400%2C400&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-11b","jetpack-related-posts":[{"id":25342,"url":"https:\/\/www.laterredufutur.com\/accueil\/les-rayons-tracteurs-inspires-de-la-science-fiction-existent-bel-et-bien-et-pourraient-resoudre-un-probleme-majeur-de-dechets-spatiaux\/","url_meta":{"origin":3917,"position":0},"title":"Les rayons tracteurs inspir\u00e9s de la science-fiction existent bel et bien et pourraient r\u00e9soudre un probl\u00e8me majeur de d\u00e9chets spatiaux","author":"Admin","date":"6 novembre 2023","format":false,"excerpt":"Des chercheurs sont en train de mettre au point un v\u00e9ritable rayon tracteur, dans le but de r\u00e9cup\u00e9rer des satellites hors d'usage sur l'orbite g\u00e9ostationnaire et d'att\u00e9nuer ainsi le probl\u00e8me des d\u00e9chets spatiaux. Dans les films de science-fiction, rien ne fait monter la tension comme le fait que le vaisseau\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\/2023\/10\/rayon-tracteur-espace.jpg?fit=970%2C546&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/10\/rayon-tracteur-espace.jpg?fit=970%2C546&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/10\/rayon-tracteur-espace.jpg?fit=970%2C546&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/10\/rayon-tracteur-espace.jpg?fit=970%2C546&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":23679,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-telescope-spatial-james-webb-a-atteint-sa-destination\/","url_meta":{"origin":3917,"position":1},"title":"Le t\u00e9lescope spatial James Webb a atteint sa destination","author":"Admin","date":"25 janvier 2022","format":false,"excerpt":"Apr\u00e8s un voyage de 30 jours, le t\u00e9lescope spatial James Webb (JWST) de la NASA a atteint sa destination au point de Lagrange 2 (L2), \u00e0 environ 1,5 million de kilom\u00e8tres de la Terre. \u00c0 14 h HNE, il a allum\u00e9 ses moteurs principaux pendant 297 secondes pour modifier sa\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\/2022\/01\/telescope-james-webb-2.jpg?fit=1200%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/01\/telescope-james-webb-2.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/01\/telescope-james-webb-2.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/01\/telescope-james-webb-2.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/01\/telescope-james-webb-2.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":23463,"url":"https:\/\/www.laterredufutur.com\/accueil\/la-terre-pourrait-voir-se-former-ses-propres-anneaux-de-debris-spatiaux\/","url_meta":{"origin":3917,"position":2},"title":"La Terre pourrait voir se former ses propres anneaux de d\u00e9bris spatiaux","author":"Admin","date":"26 novembre 2021","format":false,"excerpt":"Des scientifiques am\u00e9ricains ont propos\u00e9 de former un anneau de d\u00e9bris autour de la Terre. Les experts l'ont compar\u00e9 aux anneaux de Saturne, mais l'activit\u00e9 principale du projet sera de nettoyer l'espace extra-atmosph\u00e9rique des objets dangereux. Selon le professeur en robotique Jake Abbott, la technologie moderne permet de manipuler des\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\/2021\/11\/terre-anneaux-debrits-1.jpg?fit=1024%2C764&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/11\/terre-anneaux-debrits-1.jpg?fit=1024%2C764&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/11\/terre-anneaux-debrits-1.jpg?fit=1024%2C764&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/11\/terre-anneaux-debrits-1.jpg?fit=1024%2C764&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":12367,"url":"https:\/\/www.laterredufutur.com\/accueil\/linde-reussit-le-lancement-dun-modele-reduit-de-navette-spatiale-reutilisable\/","url_meta":{"origin":3917,"position":3},"title":"L&rsquo;Inde r\u00e9ussit le lancement d&rsquo;un mod\u00e8le r\u00e9duit de navette spatiale r\u00e9utilisable","author":"Admin","date":"24 mai 2016","format":false,"excerpt":"Il s\u2019agissait l\u00e0 d\u2019un test crucial en vue du d\u00e9veloppement d\u2019une navette r\u00e9utilisable capable de lancer des satellites \u00e0 l\u2019avenir. Essai r\u00e9ussi pour l\u2019Inde. Le pays a lanc\u00e9 ce lundi avec succ\u00e8s un mod\u00e8le r\u00e9duit de navette spatiale, con\u00e7u avec un budget d\u2019environ un milliard de roupies (13,2 millions d\u2019euros).\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\/2016\/05\/navette-spatiale-inde.jpg?fit=880%2C495&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/05\/navette-spatiale-inde.jpg?fit=880%2C495&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/05\/navette-spatiale-inde.jpg?fit=880%2C495&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/05\/navette-spatiale-inde.jpg?fit=880%2C495&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":3082,"url":"https:\/\/www.laterredufutur.com\/accueil\/cosmos-2029\/","url_meta":{"origin":3917,"position":4},"title":"Cosmos 2029","author":"Admin","date":"14 octobre 2005","format":false,"excerpt":"Tout pousse l'Humanit\u00e9 a repartir vers la Lune. Rivalit\u00e9 politique, \u00e9nergie et ressources, conqu\u00eate spatiale, tourisme, conqu\u00eate sportive,\u00a0et destin\u00e9e ? 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C'est ce que maintient le scientifique de haut niveau Pekka Janhunen, qui affirme que des millions de personnes pourraient habiter une m\u00e9gapole dans l'espace d'ici 2036. Le Dr\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\/2021\/01\/colonisation-spatiale.jpg?fit=1200%2C936&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/01\/colonisation-spatiale.jpg?fit=1200%2C936&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/01\/colonisation-spatiale.jpg?fit=1200%2C936&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/01\/colonisation-spatiale.jpg?fit=1200%2C936&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/01\/colonisation-spatiale.jpg?fit=1200%2C936&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/3917","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=3917"}],"version-history":[{"count":1,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/3917\/revisions"}],"predecessor-version":[{"id":3919,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/3917\/revisions\/3919"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/3918"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=3917"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=3917"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=3917"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}