{"id":15911,"date":"2023-07-27T12:00:05","date_gmt":"2023-07-27T12:00:05","guid":{"rendered":"https:\/\/www.africa-press.net\/djibouti\/politique\/la-nasa-designe-lockheed-martin-pour-concevoir-une-fusee-nucleaire"},"modified":"2023-07-27T13:31:31","modified_gmt":"2023-07-27T13:31:31","slug":"la-nasa-designe-lockheed-martin-pour-concevoir-une-fusee-nucleaire","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/djibouti\/toutes-les-actualites\/la-nasa-designe-lockheed-martin-pour-concevoir-une-fusee-nucleaire","title":{"rendered":"La Nasa d\u00e9signe Lockheed Martin pour concevoir une fus\u00e9e nucl\u00e9aire"},"content":{"rendered":"

Africa-Press – Djibouti. <\/strong><\/span>La Nasa et l’arme\u0301e ame\u0301ricaine ont indique\u0301 le 26 juillet 2023 avoir choisi le constructeur Lockheed Martin pour de\u0301velopper et concevoir une fuse\u0301e a\u0300 propulsion nucle\u0301aire, dans l’ide\u0301e d’utiliser cette technologie pour de futures missions vers Mars. Ce programme, base\u0301 sur une technologie avance\u0301e de propulsion nucle\u0301aire thermique, vise un premier vol test dans l’espace de\u0300s 2027, ont indique\u0301 des responsables.<\/p>\n

Trois a\u0300 quatre fois plus efficace que les fuse\u0301es a\u0300 combustible classique ?<\/b><\/p>\n

Selon la Nasa, une fuse\u0301e a\u0300 propulsion nucle\u0301aire thermique pourrait e\u0302tre trois a\u0300 quatre fois plus efficace que les fuse\u0301es a\u0300 combustible classique et re\u0301duirait le temps de trajet, un e\u0301le\u0301ment essentiel pour se rendre sur la plane\u0300te rouge. Dans une fuse\u0301e a\u0300 propulsion nucle\u0301aire thermique, un re\u0301acteur nucle\u0301aire a\u0300 fission produit de tre\u0300s hautes tempe\u0301ratures. Cette chaleur est transfe\u0301re\u0301e a\u0300 un combustible liquide, transforme\u0301 en gaz et – comme dans une fuse\u0301e conventionnelle – celui-ci est expulse\u0301 dans une tuye\u0300re pour fournir la pousse\u0301e.<\/p>\n

\u00ab\u00a0Ces syste\u0300mes de propulsion nucle\u0301aire thermique sont plus puissants et plus efficaces permettant un transit plus rapide entre deux destinations\u00a0\u00bb, a commente\u0301 Kirk Shireman, vice-pre\u0301sident en charge de l’exploration lunaire au sein de la division espace de Lockheed Martin. Or, a-t-il ajoute\u0301, \u00ab\u00a0re\u0301duire le temps de trajet est vital pour les missions humaines vers Mars afin de limiter le temps d’exposition de l’e\u0301quipage aux radiations\u00a0\u00bb.<\/p>\n

Un projet interrompu durant la Guerre froide<\/b><\/p>\n

La firme BWX Technologies sera responsable de la conception du re\u0301acteur nucle\u0301aire. Selon M. Shireman, cette technologie pourrait aussi \u00ab\u00a0re\u0301volutionner\u00a0\u00bb de futures missions vers la Lune, ou\u0300 la Nasa entend construire une base lunaire dans le cadre de son programme Artemis.<\/p>\n

La Nasa avait mene\u0301 des tests d’une fuse\u0301e nucle\u0301aire il y a plus de 50 ans, mais le projet avait e\u0301te\u0301 interrompu en raison de coupes budge\u0301taires et des tensions de la Guerre froide.<\/p>\n

Pour plus d’informations et d’analyses sur la Djibouti<\/a>, suivez Africa-Press<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Africa-Press – Djibouti. La Nasa et l’arme\u0301e ame\u0301ricaine ont indique\u0301 le 26 juillet 2023 avoir choisi le constructeur Lockheed Martin pour de\u0301velopper et concevoir une fuse\u0301e a\u0300 propulsion nucle\u0301aire, dans l’ide\u0301e d’utiliser cette technologie pour de futures missions vers Mars. Ce programme, base\u0301 sur une technologie avance\u0301e de propulsion nucle\u0301aire thermique, vise un premier vol […]<\/p>\n","protected":false},"author":82,"featured_media":15910,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[36,49,50],"class_list":["post-15911","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-africa-press","tag-africa-press-djibouti","tag-djibouti"],"yoast_head":"\nLa Nasa d\u00e9signe Lockheed Martin pour concevoir une fus\u00e9e nucl\u00e9aire - Djibouti<\/title>\n<meta name=\"description\" content=\"La Nasa et l'arme\u0301e ame\u0301ricaine ont indique\u0301 le 26 juillet 2023 avoir choisi le constructeur Lockheed Martin pour de\u0301vel ...\" \/>\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\/djibouti\/toutes-les-actualites\/la-nasa-designe-lockheed-martin-pour-concevoir-une-fusee-nucleaire\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"La Nasa d\u00e9signe Lockheed Martin pour concevoir une fus\u00e9e nucl\u00e9aire\" \/>\n<meta property=\"og:description\" content=\"La Nasa et l'arme\u0301e ame\u0301ricaine ont indique\u0301 le 26 juillet 2023 avoir choisi le constructeur Lockheed Martin pour de\u0301vel ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.africa-press.net\/djibouti\/toutes-les-actualites\/la-nasa-designe-lockheed-martin-pour-concevoir-une-fusee-nucleaire\" \/>\n<meta property=\"og:site_name\" content=\"Djibouti\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-27T12:00:05+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-07-27T13:31:31+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/static.africa-press.net\/djibouti\/sites\/52\/2023\/07\/sm_1690451949.112724.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"900\" \/>\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=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.africa-press.net\/djibouti\/toutes-les-actualites\/la-nasa-designe-lockheed-martin-pour-concevoir-une-fusee-nucleaire#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.africa-press.net\/djibouti\/toutes-les-actualites\/la-nasa-designe-lockheed-martin-pour-concevoir-une-fusee-nucleaire\"},\"author\":{\"name\":\"cfeditorfr\",\"@id\":\"https:\/\/www.africa-press.net\/djibouti\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1\"},\"headline\":\"La Nasa d\u00e9signe Lockheed Martin pour concevoir une fus\u00e9e nucl\u00e9aire\",\"datePublished\":\"2023-07-27T12:00:05+00:00\",\"dateModified\":\"2023-07-27T13:31:31+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.africa-press.net\/djibouti\/toutes-les-actualites\/la-nasa-designe-lockheed-martin-pour-concevoir-une-fusee-nucleaire\"},\"wordCount\":378,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/www.africa-press.net\/djibouti\/toutes-les-actualites\/la-nasa-designe-lockheed-martin-pour-concevoir-une-fusee-nucleaire#primaryimage\"},\"thumbnailUrl\":\"https:\/\/static.africa-press.net\/djibouti\/sites\/52\/2023\/07\/sm_1690451949.112724.jpg\",\"keywords\":[\"Africa Press\",\"Africa Press-Djibouti\",\"Djibouti\"],\"articleSection\":[\"Divers\",\"Toutes les actualit\u00e9s\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.africa-press.net\/djibouti\/toutes-les-actualites\/la-nasa-designe-lockheed-martin-pour-concevoir-une-fusee-nucleaire#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.africa-press.net\/djibouti\/toutes-les-actualites\/la-nasa-designe-lockheed-martin-pour-concevoir-une-fusee-nucleaire\",\"url\":\"https:\/\/www.africa-press.net\/djibouti\/toutes-les-actualites\/la-nasa-designe-lockheed-martin-pour-concevoir-une-fusee-nucleaire\",\"name\":\"La Nasa d\u00e9signe Lockheed Martin pour concevoir une fus\u00e9e nucl\u00e9aire - 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