{"id":694,"date":"2012-11-30T14:15:00","date_gmt":"2012-11-30T13:15:00","guid":{"rendered":"https:\/\/kids.esa.int\/europe_s_comet_explorers\/"},"modified":"2026-10-08T00:31:13","modified_gmt":"2026-10-07T22:31:13","slug":"europe_s_comet_explorers","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/da\/europe_s_comet_explorers\/","title":{"rendered":"Europas kometforskere"},"content":{"rendered":"
\n

Den 13. marts 1986 sendte ESA\u2019s rumfart\u00f8j Giotto billeder tilbage af et sort, kartoffelformet objekt, der udst\u00f8dte lysende str\u00e5ler af materiale ud i rummet. Det var f\u00f8rste gang, man havde set den faste kerne i hjertet af en komet.<\/p>\n<\/div>\n

Giottos m\u00e5l var Halleys komet, opkaldt efter den britiske astronom Edmond Halley fra det 17. \u00e5rhundrede. Han var den f\u00f8rste, der inds\u00e5, at denne lysende komet er en regelm\u00e6ssig g\u00e6st, der vender tilbage til det indre solsystem hvert 75.\u201376. \u00e5r. Dens n\u00e6ste bes\u00f8g p\u00e5 vores himmel er planlagt til 2061.<\/p>\n

Halleys komet er den mest ber\u00f8mte blandt de millioner af kometer, der kredser om Solen. Selv n\u00e5r den befinder sig i m\u00f8rket i det ydre solsystem, p\u00e5virker Halley stadig vores planet. Hvert \u00e5r i oktober passerer Jorden gennem en str\u00f8m af fint st\u00f8v, som kometen har efterladt, hvilket for\u00e5rsager Orionid-meteorregnen. Halleys komet menes ogs\u00e5 at v\u00e6re \u00e5rsagen til Eta-Aquarid-meteorregnen, der finder sted hvert \u00e5r i maj. Disse meteorer, der ofte kaldes \u201cstjerneskud\u201d, er lysende spor efter sm\u00e5, hurtigt bev\u00e6gende korn af kometrester, der br\u00e6nder op i Jordens atmosf\u00e6re.<\/p>\n

\"Rosetta
Rosetta i kredsl\u00f8b om kometen 67P\/Churyumov-Gerasimenko<\/figcaption><\/figure>\n

Siden Giottos bem\u00e6rkelsesv\u00e6rdige succes er andre kometer blevet unders\u00f8gt af rumfart\u00f8jer. Den mest ambiti\u00f8se mission er dog ESA\u2019s kometjagende rumfart\u00f8j Rosetta, som vil n\u00e5 frem til kometen Churyumov-Gerasimenko i 2014. Rosetta vil flyve t\u00e6t forbi kometkernen og foretage en grundig unders\u00f8gelse af de forandringer, der sker, n\u00e5r den opvarmes af Solen. Den vil ogs\u00e5 udsende et lille rumfart\u00f8j ved navn Philae, der skal gennemf\u00f8re den f\u00f8rste bl\u00f8de landing p\u00e5 en komet!<\/p>","protected":false},"excerpt":{"rendered":"

On 13 March 1986, ESA\u2019s Giotto spacecraft sent back pictures of a black, potato-shaped object that was blasting bright jets of material into space. It was the first time that […]<\/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\/2012\/11\/comet_halley_close_up3\/17877183-2-eng-GB\/Comet_Halley_close_up.jpg","esa_banner_description":"Comet Halley close up","esa_banner_credit":"ESA\/MPS","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2012\/11\/Comet_Halley_close_up3","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":[46,10,11],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-694","post","type-post","status-publish","format-standard","hentry","category-comets-and-meteors","category-learn","category-our-universe"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/694","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=694"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/694\/revisions"}],"predecessor-version":[{"id":4631,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/694\/revisions\/4631"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/media?parent=694"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/categories?post=694"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/tags?post=694"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/panel?post=694"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/language?post=694"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/age?post=694"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/duration?post=694"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/resource_type?post=694"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/audience?post=694"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/wf_post_folders?post=694"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}