{"id":1092,"date":"2009-04-06T09:32:00","date_gmt":"2009-04-06T07:32:00","guid":{"rendered":"https:\/\/kids.esa.int\/esa_s_space_observatories_to_explore_the_early_universe\/"},"modified":"2026-10-08T00:35:56","modified_gmt":"2026-10-07T22:35:56","slug":"esa_s_space_observatories_to_explore_the_early_universe","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/da\/esa_s_space_observatories_to_explore_the_early_universe\/","title":{"rendered":"ESA\u2019s rumobservatorier skal udforske det tidlige univers"},"content":{"rendered":"<div class=\"lede\">\n<p>Astronomer over hele verden ser med sp\u00e6nding frem til opsendelsen af en Ariane 5-raket, der skal b\u00e6re to banebrydende ESA-satellitter, der er opkaldt efter ber\u00f8mte europ\u00e6iske videnskabsm\u00e6nd: Planck og Herschel. Som tidsmaskiner fra det 21. \u00e5rhundrede vil disse topmoderne rumobservatorier kigge tilbage i tiden og hj\u00e6lpe forskerne med at afd\u00e6kke hemmelighederne bag, hvordan stjerner, galakser og selve universet blev til.<\/p>\n<\/div>\n<p>Herschel bliver det st\u00f8rste teleskop, der nogensinde er sendt ud i rummet. Kernen i teleskopet udg\u00f8res af et 3,5 m bredt hovedspejl \u2013 som er langt st\u00f8rre, men lettere, end det spejl, der anvendes i Hubble-rumteleskopet. Observatoriet, der vejer 3,4 ton, er opkaldt efter den tysk-britiske astronom William Herschel, der skrev historie ved at opdage usynligt infrar\u00f8dt lys (som vi oplever som varme) i \u00e5r 1800. Tre instrumenter p\u00e5 det moderne Herschel-teleskop vil i mindst tre \u00e5r unders\u00f8ge skyer af koldt st\u00f8v, hvor stjerner f\u00f8des, samt fjerne galakser, der lyser kraftigt i det infrar\u00f8de spektrum.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"2068\" data-credit=\"ESA\/Thales\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2009\/03\/Planck_telescope2\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2009\/03\/planck_telescope2\/17872743-2-eng-GB\/Planck_telescope.jpg\" alt=\"Planck telescope\"><figcaption>Planck-teleskopet<\/figcaption><\/figure>\n<p>Ved siden af Herschel vil der v\u00e6re en satellit, der er designet til at kigge tilbage til tidernes morgen. Rumfart\u00f8jet, der vejer 1.900 kg og er opkaldt efter den tyske fysiker Max Planck, skal unders\u00f8ge de svage ekkoer, der er tilbage efter universets f\u00f8dsel i Big Bang. Disse ekkoer viser sig som temperaturvariationer p\u00e5 nogle f\u00e5 milliontedele af en grad. For at kunne registrere og kortl\u00e6gge denne usynlige mikrob\u00f8lgestr\u00e5ling skal Plancks to detektorer nedk\u00f8les til -273 grader Celsius. Over en periode p\u00e5 ca. 15 m\u00e5neder vil observatoriets 1,5 m store hovedspejl opfange den ekstremt svage str\u00e5ling, som begyndte sin rejse mod Jorden for omkring 14 milliarder \u00e5r siden.<\/p>","protected":false},"excerpt":{"rendered":"<p>Astronomers around the world are eagerly awaiting the launch of an Ariane 5 rocket carrying two groundbreaking ESA satellites named after famous European scientists: Planck and Herschel. Like 21st century [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2009\/03\/artist_concept_of_the_herschel_spacecraft2\/17878959-2-eng-GB\/Artist_concept_of_the_Herschel_spacecraft.jpg","esa_banner_description":"Artist concept of the Herschel spacecraft","esa_banner_credit":"ESA \u2013 D. Ducros, 2009","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2009\/03\/Artist_concept_of_the_Herschel_spacecraft2","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[10,11,21],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1092","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-stars-and-galaxies"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/1092","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/comments?post=1092"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/1092\/revisions"}],"predecessor-version":[{"id":4849,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/1092\/revisions\/4849"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/media?parent=1092"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/categories?post=1092"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/tags?post=1092"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/panel?post=1092"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/language?post=1092"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/age?post=1092"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/duration?post=1092"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/resource_type?post=1092"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/audience?post=1092"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/wf_post_folders?post=1092"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}