{"id":1119,"date":"2004-11-15T13:46:00","date_gmt":"2004-11-15T12:46:00","guid":{"rendered":"https:\/\/kids.esa.int\/the_birth_of_galaxies\/"},"modified":"2026-10-08T00:36:12","modified_gmt":"2026-10-07T22:36:12","slug":"the_birth_of_galaxies","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/da\/the_birth_of_galaxies\/","title":{"rendered":"Galaksernes tilblivelse"},"content":{"rendered":"
\n

Vi kan ikke se noget af det, der skete i universets f\u00f8rste 300 000 \u00e5r. Forskerne fors\u00f8ger at rekonstruere det ud fra deres viden om atompartikler og ved hj\u00e6lp af computermodeller.<\/p>\n<\/div>\n

Det eneste direkte bevis p\u00e5 selve Big Bang er en svag gl\u00f8d i rummet. Rumfart\u00f8jer og teleskoper p\u00e5 balloner opfatter dette som et uj\u00e6vnt m\u00f8nster af lidt varmere og lidt koldere gas overalt omkring os. Disse b\u00f8lger viser ogs\u00e5, hvor brintskyerne var lidt t\u00e6ttere.<\/p>\n

I l\u00f8bet af millioner af \u00e5r trak de t\u00e6tte omr\u00e5der materiale til sig, fordi de havde st\u00f8rre tyngdekraft. Til sidst, omkring 100 millioner \u00e5r efter Big Bang, blev gassen varm og t\u00e6t nok til, at de f\u00f8rste stjerner kunne dannes.<\/p>\n

Der blev dannet nye stjerner i et tempo, der var 10 gange h\u00f8jere end i det nuv\u00e6rende univers. Store stjernehobe udviklede sig snart til de f\u00f8rste galakser.<\/p>\n

\"Hubble's
Hubbles nyeste kamera retter blikket mod et omr\u00e5de med intens stjernedannelse<\/figcaption><\/figure>\n

Hubble-rumteleskopet og kraftige jordbaserede teleskoper begynder nu at opdage galakser, der blev dannet omkring en milliard \u00e5r efter Big Bang. Disse sm\u00e5 galakser l\u00e5 meget t\u00e6ttere p\u00e5 hinanden, end galakser g\u00f8r i dag. Kollisioner var almindelige. Ligesom to flammer, der bev\u00e6ger sig mod hinanden, smeltede de sammen til st\u00f8rre galakser. Vores M\u00e6lkevej blev dannet p\u00e5 denne m\u00e5de.<\/p>","protected":false},"excerpt":{"rendered":"

We cannot see anything that happened during the first 300  000 years of the Universe. Scientists try to work it out from their knowledge of atomic particles and from computer […]<\/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\/2003\/05\/artist_s_impression_of_the_birth_of_our_galaxy2\/17907421-2-eng-GB\/Artist_s_impression_of_the_birth_of_our_Galaxy.jpg","esa_banner_description":"Artist's impression of the birth of our Galaxy","esa_banner_credit":"NASA and Adolf Schaller","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2003\/05\/Artist_s_impression_of_the_birth_of_our_Galaxy2","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":[10,11,19],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1119","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-story-of-the-universe","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/1119","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=1119"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/1119\/revisions"}],"predecessor-version":[{"id":4856,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/1119\/revisions\/4856"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/media?parent=1119"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/categories?post=1119"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/tags?post=1119"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/panel?post=1119"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/language?post=1119"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/age?post=1119"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/duration?post=1119"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/resource_type?post=1119"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/audience?post=1119"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/wf_post_folders?post=1119"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}