{"id":589,"date":"2004-11-15T13:56:00","date_gmt":"2004-11-15T12:56:00","guid":{"rendered":"https:\/\/kids.esa.int\/the_big_bang\/"},"modified":"2026-10-08T00:29:59","modified_gmt":"2026-10-07T22:29:59","slug":"the_big_bang","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/da\/the_big_bang\/","title":{"rendered":"Big Bang"},"content":{"rendered":"<div class=\"lede\">\n<p>De fleste astronomer mener, at universet opstod ved et Big Bang for omkring 14 milliarder \u00e5r siden. P\u00e5 det tidspunkt befandt hele universet sig inden for en boble, der var tusinder af gange mindre end et knappen\u00e5lshoved. Det var varmere og t\u00e6ttere end noget, vi kan forestille os.<\/p>\n<\/div>\n<p>S\u00e5 eksploderede det pludselig. Det univers, vi kender, blev f\u00f8dt. Tid, rum og stof opstod alle sammen med Big Bang. P\u00e5 en br\u00f8kdel af et sekund voksede universet fra at v\u00e6re mindre end et enkelt atom til at v\u00e6re st\u00f8rre end en galakse. Og det fortsatte med at vokse i et fantastisk tempo. Det udvider sig stadig den dag i dag.<\/p>\n<p>I takt med at universet udvidede sig og afk\u00f8lede sig, omdannedes energi til partikler af stof og antistof. Disse to modsatrettede partikeltyper udslettede stort set hinanden. Men noget stof overlevede. Mere stabile partikler, kaldet protoner og neutroner, begyndte at dannes, da universet var \u00e9t sekund gammelt.<\/p>\n<p>I l\u00f8bet af de n\u00e6ste tre minutter faldt temperaturen til under 1 milliard grader Celsius. Nu var det k\u00f8ligt nok til, at protoner og neutroner kunne smelte sammen og danne hydrogen- og heliumkerner.<\/p>\n<p>Efter 300 000 \u00e5r var universet afk\u00f8let til omkring 3000 grader. Atomkerner kunne nu endelig indfange elektroner og danne atomer. Universet var fyldt med skyer af brint- og heliumgas.<\/p>","protected":false},"excerpt":{"rendered":"<p>Most astronomers believe the Universe began in a Big Bang about 14 billion years ago. At that time, the entire Universe was inside a bubble that was thousands of times [&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\/2014\/06\/nearby_galaxy\/17883658-2-eng-GB\/Nearby_galaxy.jpg","esa_banner_description":"","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2014\/06\/Nearby_galaxy","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-589","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\/589","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=589"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/589\/revisions"}],"predecessor-version":[{"id":1732,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/589\/revisions\/1732"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/media?parent=589"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/categories?post=589"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/tags?post=589"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/panel?post=589"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/language?post=589"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/age?post=589"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/duration?post=589"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/resource_type?post=589"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/audience?post=589"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/wf_post_folders?post=589"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}