{"id":4058,"date":"2015-11-13T05:43:38","date_gmt":"2015-11-13T05:43:38","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=4058"},"modified":"2015-11-20T05:52:13","modified_gmt":"2015-11-20T05:52:13","slug":"en-video-derniers-tests-pour-le-telescope-spatial-jwst","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/13\/en-video-derniers-tests-pour-le-telescope-spatial-jwst\/","title":{"rendered":"En vid\u00e9o\u00a0: derniers tests pour le t\u00e9lescope spatial JWST"},"content":{"rendered":"<p><strong>Une \u00e9quipe d&#8217;ing\u00e9nieurs de la NASA vient d&#8217;installer le c\u0153ur du futur t\u00e9lescope spatial JWST dans une chambre froide pour quatre mois de tests intensifs.\u00a0<\/strong><\/p>\n<p>Successeur du <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/04\/24\/en-video-science-et-poesie-pour-feter-le-telescope-hubble\/\" target=\"_blank\">t\u00e9lescope spatial Hubble<\/a>, le <em>James Webb Space Telescope<\/em>, un instrument qui sera dot\u00e9 d&#8217;un miroir de 6,5 m de diam\u00e8tre) doit \u00eatre lanc\u00e9 en 2018. Son assemblage se poursuit dans la salle blanche g\u00e9ante du <em><a href=\"https:\/\/www.nasa.gov\/centers\/goddard\/home\/index.html\" target=\"_blank\">Goddard Space Flight Center<\/a><\/em> \u00e0 Greenbelt dans le Maryland. La <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/10\/27\/la-monture-du-telescope-spatial-james-webb-est-prete\/\" target=\"_blank\">monture du t\u00e9lescope<\/a> est op\u00e9rationnelle et les dix-huit segments en b\u00e9ryllium recouvert d\u2019or qui vont constituer le<a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/07\/24\/le-telescope-spatial-james-webb-prend-forme\/\" target=\"_blank\"> miroir principal<\/a> seront bient\u00f4t pr\u00eats.<\/p>\n<p>Les ing\u00e9nieurs de la <a href=\"https:\/\/www.nasa.gov\/\" target=\"_blank\">NASA <\/a>ont \u00e9galement termin\u00e9 l&#8217;assemblage du module <a href=\"http:\/\/jwst.nasa.gov\/isim.html\" target=\"_blank\">ISIM<\/a>, le c\u0153ur du JWST. ISIM (<em>Integrated Science Instrument Module<\/em>) regroupe les principaux instruments destin\u00e9s \u00e0 la bonne marche du t\u00e9lescope (cam\u00e9ra infrarouge, spectrom\u00e8tre, capteurs de guidage..).<\/p>\n\n<!-- iframe plugin v.5.1 wordpress.org\/plugins\/iframe\/ -->\n<iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/joILdG6aB0w\" frameborder=\"0\" 0=\"allowfullscreen\" scrolling=\"yes\" class=\"iframe-class\"><\/iframe>\n\n<p>Comme le montre la vid\u00e9o ci-dessus, le module ISIM vient d&#8217;\u00eatre plac\u00e9 pour quatre mois dans une \u00e9norme enceinte de 8 m de diam\u00e8tre et 12 m de haut.<\/p>\n<p><!--more-->Les ing\u00e9nieurs vont ensuite faire un vide pouss\u00e9 dans cette enceinte et descendre la temp\u00e9rature jusqu&#8217;\u00e0 -254\u00b0 C (en utilisant de l&#8217;azote liquide et de l&#8217;h\u00e9lium liquide) de fa\u00e7on \u00e0 tester le module ISIM dans les m\u00eames conditions qui l&#8217;attendent dans l&#8217;espace.<\/p>\n<p>Cette s\u00e9quence de tests qui devrait durer quatre mois s&#8217;annonce cruciale\u00a0: si le d\u00e9pannage du t\u00e9lescope spatial Hubble a \u00e9t\u00e9 possible dans le pass\u00e9 en raison de son orbite basse (moins de 600 km de la Terre), il sera rigoureusement impossible d&#8217;intervenir sur le JWST une fois que ce dernier aura \u00e9t\u00e9 plac\u00e9 \u00e0 1,5 million de kilom\u00e8tres de la Terre, au point de Lagrange L2.<\/p>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>Une \u00e9quipe d&#8217;ing\u00e9nieurs de la NASA vient d&#8217;installer le c\u0153ur du futur t\u00e9lescope spatial JWST dans une chambre froide pour quatre mois de tests intensifs.\u00a0 Successeur du t\u00e9lescope spatial Hubble, le James Webb Space Telescope, un instrument qui sera dot\u00e9 d&#8217;un miroir de 6,5 m de diam\u00e8tre) doit \u00eatre lanc\u00e9 en 2018. Son assemblage se &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/13\/en-video-derniers-tests-pour-le-telescope-spatial-jwst\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">En vid\u00e9o\u00a0: derniers tests pour le t\u00e9lescope spatial JWST<\/span>  <span class=\"meta-nav\">&rarr;<\/span><\/a><!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons generic via filter on get_the_excerpt --><\/p>\n","protected":false},"author":8,"featured_media":4059,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[87],"tags":[1344,741,486,1345,544],"class_list":["post-4058","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-les-hommes-et-le-ciel","tag-isim","tag-jwst","tag-nasa","tag-point-de-lagrange","tag-telescope-spatial-hubble"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>En vid\u00e9o\u00a0: derniers tests pour le t\u00e9lescope spatial JWST<\/title>\n<meta name=\"description\" content=\"Une \u00e9quipe d&#039;ing\u00e9nieurs de la NASA vient d&#039;installer le c\u0153ur du futur t\u00e9lescope spatial JWST dans une chambre froide pour quatre mois de tests intensifs.\" \/>\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\/feldmann\/2015\/11\/13\/en-video-derniers-tests-pour-le-telescope-spatial-jwst\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"En vid\u00e9o\u00a0: derniers tests pour le t\u00e9lescope spatial JWST\" \/>\n<meta property=\"og:description\" content=\"Une \u00e9quipe d&#039;ing\u00e9nieurs de la NASA vient d&#039;installer le c\u0153ur du futur t\u00e9lescope spatial JWST dans une chambre froide pour quatre mois de tests intensifs.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/13\/en-video-derniers-tests-pour-le-telescope-spatial-jwst\/\" \/>\n<meta property=\"og:site_name\" content=\"CIELMANIA : le blog de Jean-Baptiste FELDMANN, photographe du ciel\" \/>\n<meta property=\"article:published_time\" content=\"2015-11-13T05:43:38+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2015-11-20T05:52:13+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/10\/nasa.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1493\" \/>\n\t<meta property=\"og:image:height\" content=\"900\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Jean-Baptiste FELDMANN\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jean-Baptiste FELDMANN\" \/>\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\":\"WebPage\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/13\/en-video-derniers-tests-pour-le-telescope-spatial-jwst\/\",\"url\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/13\/en-video-derniers-tests-pour-le-telescope-spatial-jwst\/\",\"name\":\"En vid\u00e9o\u00a0: derniers tests pour le t\u00e9lescope spatial JWST\",\"isPartOf\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/13\/en-video-derniers-tests-pour-le-telescope-spatial-jwst\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/13\/en-video-derniers-tests-pour-le-telescope-spatial-jwst\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/10\/nasa.jpg\",\"datePublished\":\"2015-11-13T05:43:38+00:00\",\"dateModified\":\"2015-11-20T05:52:13+00:00\",\"author\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#\/schema\/person\/62b391b709c307783237b759b62731ea\"},\"description\":\"Une \u00e9quipe d'ing\u00e9nieurs de la NASA vient d'installer le c\u0153ur du futur t\u00e9lescope spatial JWST dans une chambre froide pour quatre mois de tests intensifs.\",\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/13\/en-video-derniers-tests-pour-le-telescope-spatial-jwst\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/13\/en-video-derniers-tests-pour-le-telescope-spatial-jwst\/#primaryimage\",\"url\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/10\/nasa.jpg\",\"contentUrl\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/10\/nasa.jpg\",\"width\":1493,\"height\":900},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#website\",\"url\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/\",\"name\":\"CIELMANIA : le blog de Jean-Baptiste FELDMANN, photographe du ciel\",\"description\":\"&quot;J&#039;ai en moi un besoin terrible. Dirais-je le mot? La religion. Alors, je sors la nuit et je peins des \u00e9toiles.&quot;  Vincent van Gogh\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#\/schema\/person\/62b391b709c307783237b759b62731ea\",\"name\":\"Jean-Baptiste FELDMANN\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/41f96607fde7a81a14570eec74177c42?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/41f96607fde7a81a14570eec74177c42?s=96&d=mm&r=g\",\"caption\":\"Jean-Baptiste FELDMANN\"},\"url\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/author\/jbfe\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"En vid\u00e9o\u00a0: derniers tests pour le t\u00e9lescope spatial JWST","description":"Une \u00e9quipe d'ing\u00e9nieurs de la NASA vient d'installer le c\u0153ur du futur t\u00e9lescope spatial JWST dans une chambre froide pour quatre mois de tests intensifs.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/13\/en-video-derniers-tests-pour-le-telescope-spatial-jwst\/","og_locale":"fr_FR","og_type":"article","og_title":"En vid\u00e9o\u00a0: derniers tests pour le t\u00e9lescope spatial JWST","og_description":"Une \u00e9quipe d'ing\u00e9nieurs de la NASA vient d'installer le c\u0153ur du futur t\u00e9lescope spatial JWST dans une chambre froide pour quatre mois de tests intensifs.","og_url":"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/13\/en-video-derniers-tests-pour-le-telescope-spatial-jwst\/","og_site_name":"CIELMANIA : le blog de Jean-Baptiste FELDMANN, photographe du ciel","article_published_time":"2015-11-13T05:43:38+00:00","article_modified_time":"2015-11-20T05:52:13+00:00","og_image":[{"width":1493,"height":900,"url":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/10\/nasa.jpg","type":"image\/jpeg"}],"author":"Jean-Baptiste FELDMANN","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"Jean-Baptiste FELDMANN","Dur\u00e9e de lecture estim\u00e9e":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/13\/en-video-derniers-tests-pour-le-telescope-spatial-jwst\/","url":"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/13\/en-video-derniers-tests-pour-le-telescope-spatial-jwst\/","name":"En vid\u00e9o\u00a0: derniers tests pour le t\u00e9lescope spatial JWST","isPartOf":{"@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/#website"},"primaryImageOfPage":{"@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/13\/en-video-derniers-tests-pour-le-telescope-spatial-jwst\/#primaryimage"},"image":{"@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/13\/en-video-derniers-tests-pour-le-telescope-spatial-jwst\/#primaryimage"},"thumbnailUrl":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/10\/nasa.jpg","datePublished":"2015-11-13T05:43:38+00:00","dateModified":"2015-11-20T05:52:13+00:00","author":{"@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/#\/schema\/person\/62b391b709c307783237b759b62731ea"},"description":"Une \u00e9quipe d'ing\u00e9nieurs de la NASA vient d'installer le c\u0153ur du futur t\u00e9lescope spatial JWST dans une chambre froide pour quatre mois de tests intensifs.","inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/13\/en-video-derniers-tests-pour-le-telescope-spatial-jwst\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/13\/en-video-derniers-tests-pour-le-telescope-spatial-jwst\/#primaryimage","url":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/10\/nasa.jpg","contentUrl":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/10\/nasa.jpg","width":1493,"height":900},{"@type":"WebSite","@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/#website","url":"https:\/\/blogs.futura-sciences.com\/feldmann\/","name":"CIELMANIA : le blog de Jean-Baptiste FELDMANN, photographe du ciel","description":"&quot;J&#039;ai en moi un besoin terrible. Dirais-je le mot? La religion. Alors, je sors la nuit et je peins des \u00e9toiles.&quot;  Vincent van Gogh","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/blogs.futura-sciences.com\/feldmann\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Person","@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/#\/schema\/person\/62b391b709c307783237b759b62731ea","name":"Jean-Baptiste FELDMANN","image":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/41f96607fde7a81a14570eec74177c42?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/41f96607fde7a81a14570eec74177c42?s=96&d=mm&r=g","caption":"Jean-Baptiste FELDMANN"},"url":"https:\/\/blogs.futura-sciences.com\/feldmann\/author\/jbfe\/"}]}},"_links":{"self":[{"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/posts\/4058","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/comments?post=4058"}],"version-history":[{"count":7,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/posts\/4058\/revisions"}],"predecessor-version":[{"id":4181,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/posts\/4058\/revisions\/4181"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/media\/4059"}],"wp:attachment":[{"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/media?parent=4058"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/categories?post=4058"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/tags?post=4058"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}