{"id":293,"date":"2019-04-29T08:23:41","date_gmt":"2019-04-29T06:23:41","guid":{"rendered":"https:\/\/kids.esa.int\/esa_satellite_tracks_down_methane_on_mars\/"},"modified":"2026-10-08T00:26:30","modified_gmt":"2026-10-07T22:26:30","slug":"esa_satellite_tracks_down_methane_on_mars","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/da\/esa_satellite_tracks_down_methane_on_mars\/","title":{"rendered":"ESA-satellit sporer metan p\u00e5 Mars"},"content":{"rendered":"<div class=\"lede\">\n<p>Den 15. juni 2013 var NASAs Curiosity-rover i fuld gang med at udforske Mars\u2019 overflade. Dens sensorer opfangede noget, der gjorde operat\u00f8rerne her p\u00e5 Jorden meget begejstrede: en gas ved navn metan. Der findes store m\u00e6ngder metan p\u00e5 Jorden. Det kan dannes gennem geologiske processer og af levende v\u00e6sener.\u00a0<\/p>\n<\/div>\n<p>Inden for videnskaben g\u00e6lder det, at jo flere data man indsamler om noget, desto bedre bliver unders\u00f8gelserne. Derfor har en gruppe forskere unders\u00f8gt data indsamlet af ESA\u2019s Mars Express-satellit, som p\u00e5 det tidspunkt kredsede om Mars. De har nu fundet ud af, at Mars Express ogs\u00e5 opfangede metan!\u00a0<\/p>\n<p>Hvad kan s\u00e5 have dannet metan p\u00e5 Mars? Metan nedbrydes meget hurtigt, s\u00e5 snart det uds\u00e6ttes for selv Mars\u2019 tynde atmosf\u00e6re, hvilket betyder, at den gas, der er blevet opdaget af Curiosity og Mars Express, m\u00e5 v\u00e6re dannet eller frigivet for ganske nylig. En teori er, at metanen blev dannet for millioner eller endda milliarder af \u00e5r siden. Den kan have v\u00e6ret fanget under jorden i al den tid, indtil den endelig n\u00e5ede op til overfladen, hvor den blev opdaget af vores robotudforskere.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"5333\" data-credit=\"ESA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/04\/Comparing_the_atmospheres_of_Mars_and_Earth\" 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\/2018\/04\/comparing_the_atmospheres_of_mars_and_earth\/17444033-1-eng-GB\/Comparing_the_atmospheres_of_Mars_and_Earth.jpg\" alt=\"Comparing the atmospheres of Mars and Earth\"><figcaption>Sammenligning af atmosf\u00e6rerne p\u00e5 Mars og Jorden<\/figcaption><\/figure>\n<p>En anden teori er, at metanen kunne v\u00e6re dannet af mikroskopiske livsformer p\u00e5 Mars, der producerer metan som et affaldsprodukt. Det er en sp\u00e6ndende mulighed, men der skal indsamles flere beviser, f\u00f8r vi kan drage den konklusion!\u00a0<\/p>\n<p>Forskerne h\u00e6lder i \u00f8jeblikket til geologiske forklaringer frem for biologiske. Der kan frigives metangas fra klipper overalt p\u00e5 Mars, hver gang i sm\u00e5 m\u00e6ngder. Mars har ogs\u00e5 store m\u00e6ngder is, som kan indeholde metangas. N\u00e5r isen smelter eller br\u00e6kker, kan gassen slippe ud i atmosf\u00e6ren.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"3638\" data-credit=\"ESA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2019\/04\/How_to_create_and_destroy_methane_at_Mars\" 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\/2019\/04\/how_to_create_and_destroy_methane_at_mars\/19329127-1-eng-GB\/How_to_create_and_destroy_methane_at_Mars.jpg\" alt=\"How to create and destroy methane at Mars\"><figcaption>S\u00e5dan dannes og nedbrydes metan p\u00e5 Mars<\/figcaption><\/figure>\n<p>Det n\u00e6ste skridt i denne forskning er at gennemg\u00e5 flere data fra Mars Express for at finde andre tidspunkter, hvor der kunne v\u00e6re blevet p\u00e5vist metan. Derudover kredser en ny rumsonde, ESA-Roscosmos\u2019 ExoMars Trace Gas Orbiter, i \u00f8jeblikket omkring Mars og unders\u00f8ger planetens atmosf\u00e6re. Hvem ved, hvad den vil opdage!<\/p>\n<p><i>Interessant faktum: Mars Express blev opsendt i 2003, og det tog seks m\u00e5neder at n\u00e5 frem til Mars. Den er stadig i drift s\u00e5 mange \u00e5r senere og hj\u00e6lper os med at l\u00e6re mere om den r\u00f8de planet.<\/i><\/p>","protected":false},"excerpt":{"rendered":"<p>Back on 15 June 2013, NASA\u2019s Curiosity rover was busy exploring the surface of Mars. Its sensors detected something that made its operators back on Earth very excited: a gas [&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\/2018\/04\/mars_express\/17447281-1-eng-GB\/Mars_Express.jpg","esa_banner_description":"Mars Express","esa_banner_credit":"Spacecraft image credit: ESA\/ATG medialab; Mars: ESA\/DLR\/FU Berlin","esa_banner_licence":"CC BY-SA 3.0 IGO or ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/04\/Mars_Express","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":[26],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-293","post","type-post","status-publish","format-standard","hentry","category-news"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/293","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=293"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/293\/revisions"}],"predecessor-version":[{"id":4392,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/293\/revisions\/4392"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/media?parent=293"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/categories?post=293"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/tags?post=293"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/panel?post=293"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/language?post=293"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/age?post=293"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/duration?post=293"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/resource_type?post=293"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/audience?post=293"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/wf_post_folders?post=293"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}