{"id":195,"date":"2021-12-02T12:44:42","date_gmt":"2021-12-02T11:44:42","guid":{"rendered":"https:\/\/kids.esa.int\/galaxies\/"},"modified":"2026-10-08T00:25:21","modified_gmt":"2026-10-07T22:25:21","slug":"galaxies","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/da\/galaxies\/","title":{"rendered":"Galakser"},"content":{"rendered":"<div class=\"lede\">\n<p>N\u00e6sten alle stjerner tilh\u00f8rer gigantiske grupper, der kaldes galakser. Solen er en af mindst 100 milliarder stjerner i vores galakse, M\u00e6lkevejen. Og der findes milliarder af galakser i universet.<\/p>\n<\/div>\n<p>Uanset hvor vi kigger hen p\u00e5 himlen, ser vi galakser i forskellige former og st\u00f8rrelser. Nogle er spiralgalakser med buede arme, der snor sig omkring en lysende central kerne.<\/p>\n<p>Nogle har en stjernestribe p\u00e5 tv\u00e6rs af midten med arme, der udg\u00e5r fra begge ender. Andre har slet ingen genkendelig form. De st\u00f8rste galakser ligner flade kugler. De indeholder op til 10 millioner millioner stjerner, men de har meget lidt gas eller st\u00f8v. N\u00e6sten alle galakser har et supermassivt sort hul i midten.<\/p>\n<figure class=\"wp-block-image size-natural\" data-width=\"400\" data-credit=\"Brad Whitmore (STScI), and NASA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2003\/05\/When_galaxies_collide_as_shown_by_Antennae_galaxies2\" 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\/2003\/05\/when_galaxies_collide_as_shown_by_antennae_galaxies2\/17882362-2-eng-GB\/When_galaxies_collide_as_shown_by_Antennae_galaxies.jpg\" alt=\"When galaxies collide, as shown by Antennae galaxies\"><figcaption>N\u00e5r galakser kolliderer, som det ses ved Antennegalakserne<\/figcaption><\/figure>\n<p>Galakserne opstod kun f\u00e5 hundrede millioner \u00e5r efter universets opst\u00e5en. Dengang, for omkring 13 milliarder \u00e5r siden, var galakserne sm\u00e5 og l\u00e5 meget t\u00e6ttere p\u00e5 hinanden. Kollisioner var almindelige. N\u00e5r galakserne st\u00f8dte sammen, voksede de i st\u00f8rrelse og \u00e6ndrede form.<\/p>\n<p>Siden da har universet udvidet sig. De fleste galakser bev\u00e6ger sig v\u00e6k fra hinanden med h\u00f8j hastighed, bortset fra i galaksehobe, hvor de danser rundt om hinanden.<\/p>","protected":false},"excerpt":{"rendered":"<p>Nearly all stars belong to gigantic groups known as galaxies. The Sun is one of at least 100 billion stars in our galaxy, the Milky Way. And there are billions [&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\/2003\/04\/spiral_galaxy_ngc_12322\/17874740-2-eng-GB\/Spiral_galaxy_NGC_1232.jpg","esa_banner_description":"Spiral galaxy NGC 1232","esa_banner_credit":"Spaceweek International","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2003\/04\/Spiral_galaxy_NGC_12322","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":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-195","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-stars-and-galaxies","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/195","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=195"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/195\/revisions"}],"predecessor-version":[{"id":4351,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/195\/revisions\/4351"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/media?parent=195"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/categories?post=195"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/tags?post=195"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/panel?post=195"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/language?post=195"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/age?post=195"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/duration?post=195"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/resource_type?post=195"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/audience?post=195"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/wf_post_folders?post=195"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}