{"id":72121,"date":"2025-10-28T12:00:00","date_gmt":"2025-10-28T12:00:00","guid":{"rendered":"https:\/\/www.africa-press.net\/senegal\/politique\/industrialisation-des-satellites-et-saturation-spatiale"},"modified":"2025-10-28T23:24:56","modified_gmt":"2025-10-28T23:24:56","slug":"industrialisation-des-satellites-et-saturation-spatiale","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/industrialisation-des-satellites-et-saturation-spatiale","title":{"rendered":"Industrialisation des Satellites et Saturation Spatiale"},"content":{"rendered":"<p><span style=\"color: #ff6600\"><strong>Africa-Press &#8211; Senegal. <\/strong><\/span>Ce 19 octobre, la socie\u0301te\u0301 ame\u0301ricaine SpaceX a de\u0301ploye\u0301 28 nouveaux satellites de sa me\u0301gaconstellation Starlink de communications internet lors de la 550e mission de son lanceur Falcon 9. Elle franchit ainsi la barre historique des 10.000 satellites mis en orbite basse depuis le de\u0301but du programme.<\/p>\n<p>A ce jour, plus de 13.000 satellites actifs \u2013 et environ 16.000 satellites au total en orbite \u2013 sont recense\u0301s. Soit une augmentation de 23% sur les 12 derniers mois, indique la start-up franc\u0327aise Look Up Space, socie\u0301te\u0301 spe\u0301cialise\u0301e dans la surveillance de la situation spatiale. L\u2019histoire spatiale connai\u0302t aujourd\u2019hui une acce\u0301le\u0301ration sans pre\u0301ce\u0301dent depuis le lancement de Spoutnik 1, premier satellite artificiel de la Terre, mis en orbite le 4 octobre 1957 par l\u2019Union des re\u0301publiques sovie\u0301tiques (URSS).<\/p>\n<p><b>Un rythme qui s\u2019est accru depuis 2020<\/b><\/p>\n<p>En soixante ans, soit jusqu\u2019en 2017, quelques 8000 satellites ont e\u0301te\u0301 lance\u0301s. Mais le rythme s\u2019est vraiment accru depuis 2020, e\u0301poque ou\u0300 quelques 2000 satellites e\u0301taient alors en service. Depuis plus de 11.000 d\u2019entre eux ont e\u0301te\u0301 mis en orbite. Cette dynamique de\u0301coule d\u2019une industrialisation de la construction de petits satellites, produits a\u0300 faible cou\u0302t et destine\u0301s a\u0300 fournir un trafic a\u0300 haut de\u0301bit pour le re\u0301seau Internet.<\/p>\n<p>La part de la me\u0301gaconstellation Starlink d\u2019Elon Musk pe\u0300se aujourd\u2019hui pour deux tiers des satellites actifs, tandis que les Etats-Unis comptabilisent trois quarts du cheptel spatial. Une tendance qui va s\u2019intensifier a\u0300 l\u2019avenir. SpaceX dispose en effet d\u2019une autorisation de l\u2019autorite\u0301 ame\u0301ricaine des communications pour mettre 19.500 satellites en orbite dans diffe\u0301rentes bandes de fre\u0301quence.<\/p>\n<p>De son co\u0302te\u0301, la Chine a augmente\u0301 de 25% son nombre de satellites actifs, soit plus de 1100 recense\u0301s par Look Up Space, dont 90 et 57 satellites de\u0301ploye\u0301s pour les constellations similaires a\u0300 Starlink, QianFan et GuoWang. La constellation europe\u0301enne Eutelsat OneWeb arrive ensuite, avec 651 satellites en orbite de\u0301but octobre.<\/p>\n<p><b>La crainte de collisions en chai\u0302ne<\/b><\/p>\n<p>L\u2019augmentation du nombre de satellites en orbite fait craindre la possibilite\u0301 de collisions en chai\u0302ne et de de\u0301bris en orbite qui pourraient rendre l\u2019acce\u0300s a\u0300 l\u2019espace impossible, un sce\u0301nario connu sous le nom de syndrome de Kessler. De\u0301ja\u0300, plus de 12.000 de\u0301bris de plus de 10 cm ont e\u0301te\u0301 catalogue\u0301s en orbite et pre\u0300s du triple si l\u2019on prend en compte les plus petits objets. En orbite basse, un boulon d\u2019un centime\u0300tre de diame\u0300tre qui percuterait un satellite provoquerait des dommages se\u0301rieux, correspondant a\u0300 l\u2019explosion de quelques grammes a\u0300 une centaine de grammes de TNT !<\/p>\n<p>Les principaux acteurs du secteur spatial doivent de\u0301sormais s\u2019entendre pour mettre en place une coordination et une re\u0301glementation mondiale pour limiter ce risque. \u00ab Les contacts re\u0301cents entre les agences spatiales chinoise et ame\u0301ricaine concernant des cas ope\u0301rationnels de pre\u0301vention des collisions peuvent e\u0302tre conside\u0301re\u0301s comme un premier signe positif dans cette direction \u00bb, indique la Fondation pour la Recherche Strate\u0301gique.<\/p>\n<p><strong>Pour plus d&rsquo;informations et d&rsquo;analyses sur la <span style=\"color: #ff6600\">Senegal<\/span>, suivez <span style=\"color: #ff6600\">Africa-Press<\/span><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Africa-Press &#8211; Senegal. Ce 19 octobre, la socie\u0301te\u0301 ame\u0301ricaine SpaceX a de\u0301ploye\u0301 28 nouveaux satellites de sa me\u0301gaconstellation Starlink de communications internet lors de la 550e mission de son lanceur Falcon 9. Elle franchit ainsi la barre historique des 10.000 satellites mis en orbite basse depuis le de\u0301but du programme. A ce jour, plus de [&hellip;]<\/p>\n","protected":false},"author":82,"featured_media":72120,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[44],"class_list":["post-72121","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-senegal-2"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.1 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Industrialisation des Satellites et Saturation Spatiale - Senegal<\/title>\n<meta name=\"description\" content=\"Ce 19 octobre, la socie\u0301te\u0301 ame\u0301ricaine SpaceX a de\u0301ploye\u0301 28 nouveaux satellites de sa me\u0301gaconstellation Starlink de c ...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/industrialisation-des-satellites-et-saturation-spatiale\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Industrialisation des Satellites et Saturation Spatiale\" \/>\n<meta property=\"og:description\" content=\"Ce 19 octobre, la socie\u0301te\u0301 ame\u0301ricaine SpaceX a de\u0301ploye\u0301 28 nouveaux satellites de sa me\u0301gaconstellation Starlink de c ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/industrialisation-des-satellites-et-saturation-spatiale\" \/>\n<meta property=\"og:site_name\" content=\"Senegal\" \/>\n<meta property=\"article:published_time\" content=\"2025-10-28T12:00:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-10-28T23:24:56+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/static.africa-press.net\/senegal\/sites\/13\/2025\/10\/sm_1761722673.671143.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"899\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"cfeditorfr\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"cfeditorfr\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/industrialisation-des-satellites-et-saturation-spatiale#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/industrialisation-des-satellites-et-saturation-spatiale\"},\"author\":{\"name\":\"cfeditorfr\",\"@id\":\"https:\/\/www.africa-press.net\/senegal\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1\"},\"headline\":\"Industrialisation des Satellites et Saturation Spatiale\",\"datePublished\":\"2025-10-28T12:00:00+00:00\",\"dateModified\":\"2025-10-28T23:24:56+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/industrialisation-des-satellites-et-saturation-spatiale\"},\"wordCount\":544,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/industrialisation-des-satellites-et-saturation-spatiale#primaryimage\"},\"thumbnailUrl\":\"https:\/\/static.africa-press.net\/senegal\/sites\/13\/2025\/10\/sm_1761722673.671143.jpg\",\"keywords\":[\"Senegal\"],\"articleSection\":[\"Divers\",\"Toutes les actualit\u00e9s\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/industrialisation-des-satellites-et-saturation-spatiale#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/industrialisation-des-satellites-et-saturation-spatiale\",\"url\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/industrialisation-des-satellites-et-saturation-spatiale\",\"name\":\"Industrialisation des Satellites et Saturation Spatiale - 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