{"id":1375,"date":"2021-07-07T17:56:24","date_gmt":"2021-07-07T15:56:24","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/lehning\/?p=1375"},"modified":"2021-07-07T18:36:38","modified_gmt":"2021-07-07T16:36:38","slug":"enigmes-pour-extraterrestres","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/lehning\/2021\/07\/07\/enigmes-pour-extraterrestres\/","title":{"rendered":"Enigmes pour extraterrestres"},"content":{"rendered":"

 <\/p>\n

Dans l\u2019espoir d\u2019entrer en contact avec des extraterrestres, en\u00a01972 et\u00a01973, les sondes 10 et 11 du programme d\u2019exploration du syst\u00e8me solaire Pioneer furent \u00e9quip\u00e9es d\u2019une plaque qui voulait d\u00e9crire l\u2019humanit\u00e9 et son lieu de r\u00e9sidence, la Terre. Sur la droite, un homme et une femme nus, l\u2019homme saluant de la main droite.<\/p>\n

\"\"<\/p>\n

En bas, on peut reconna\u00eetre le Syst\u00e8me solaire avec le Soleil \u00e0 gauche et neuf plan\u00e8tes\u00a0: Mercure, V\u00e9nus, Terre, Mars, Jupiter, Saturne, Uranus, Neptune et Pluton qui, de nos jours n\u2019est plus consid\u00e9r\u00e9e comme une plan\u00e8te. Un chemin part de la troisi\u00e8me plan\u00e8te (la Terre) et m\u00e8ne \u00e0 une repr\u00e9sentation de la sonde, qui est \u00e0 l\u2019\u00e9chelle et permet de conna\u00eetre la taille moyenne des humains.<\/p>\n

Ce nombre indique \u00e0 quelle distance moyenne se trouve la plan\u00e8te par rapport au soleil, sachant qu\u2019une unit\u00e9 vaut 6 millions de km. Voici les nombres affich\u00e9s pour les six premi\u00e8res plan\u00e8tes :<\/p>\n\n\n\n\n\n\n
Plan\u00e8te<\/td>\nMercure<\/td>\nV\u00e9nus<\/td>\nTerre<\/td>\nMars<\/td>\nJupiter<\/td>\nSaturne<\/td>\n<\/tr>\n
Nombre binaire<\/td>\n1010<\/td>\n10011<\/td>\n11010<\/td>\n100111<\/td>\n10000110<\/td>\n11110111<\/td>\n<\/tr>\n
d\u00e9cimal<\/td>\n10<\/td>\n19<\/td>\n26<\/td>\n39<\/td>\n134<\/td>\n247<\/td>\n<\/tr>\n
distance<\/td>\n60<\/td>\n110<\/td>\n150<\/td>\n230<\/td>\n800<\/td>\n1\u00a0400<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Les autres informations contenues dans la plaque concernent des connaissances en physique, sur l\u2019atome d\u2019hydrog\u00e8ne et en astronomie, sur les pulsars. Les Am\u00e9ricains envoy\u00e8rent une autre bouteille \u00e0 la mer interstellaire avec les sondes Voyager 1 et 2 en 1977. Les engins arboraient la plaque et renfermaient un CD avec les instruments pour le lire. La Nasa n\u2019a pas r\u00e9cidiv\u00e9 depuis, peut-\u00eatre lass\u00e9e de ne pas recevoir de r\u00e9ponse\u2026<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

  Dans l\u2019espoir d\u2019entrer en contact avec des extraterrestres, en\u00a01972 et\u00a01973, les sondes 10 et 11 du programme d\u2019exploration du syst\u00e8me solaire Pioneer furent \u00e9quip\u00e9es d\u2019une plaque qui voulait d\u00e9crire l\u2019humanit\u00e9 et son lieu de r\u00e9sidence, la Terre. Sur la droite, un homme et une femme nus, l\u2019homme saluant de la main droite. En bas, … Continuer la lecture de Enigmes pour extraterrestres<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":12,"featured_media":1377,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[112,4,10],"tags":[393],"class_list":["post-1375","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-humour","category-regard-sur-le-monde","category-voyages","tag-binaire"],"yoast_head":"\nEnigmes pour extraterrestres, par Herv\u00e9 Lehning<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.futura-sciences.com\/lehning\/2021\/07\/07\/enigmes-pour-extraterrestres\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Enigmes pour extraterrestres, par Herv\u00e9 Lehning\" \/>\n<meta property=\"og:description\" content=\"  Dans l\u2019espoir d\u2019entrer en contact avec des extraterrestres, en\u00a01972 et\u00a01973, les sondes 10 et 11 du programme d\u2019exploration du syst\u00e8me solaire Pioneer furent \u00e9quip\u00e9es d\u2019une plaque qui voulait d\u00e9crire l\u2019humanit\u00e9 et son lieu de r\u00e9sidence, la Terre. 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