{"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\/nb\/esa_satellite_tracks_down_methane_on_mars\/","title":{"rendered":"ESA-satellitt sporer opp metan p\u00e5 Mars"},"content":{"rendered":"<div class=\"lede\">\n<p>Den 15. juni 2013 var NASAs Curiosity-rover i full gang med \u00e5 utforske Mars\u2019 overflate. Sensorene dens oppdaget noe som gjorde operat\u00f8rene p\u00e5 Jorden sv\u00e6rt begeistret: en gass kalt metan. Vi har mye metan p\u00e5 Jorden. Den kan dannes gjennom geologiske prosesser og av levende vesener.\u00a0<\/p>\n<\/div>\n<p>Innen naturvitenskap gjelder det at jo mer data man samler inn om noe, desto bedre blir forskningen. En gruppe forskere har derfor studert data innsamlet av ESAs satellitt \u00abMars Express\u00bb, som var i bane rundt Mars p\u00e5 samme tid. De har n\u00e5 funnet ut at ogs\u00e5 \u00abMars Express\u00bb oppdaget metanet!\u00a0<\/p>\n<p>S\u00e5, hva kan ha for\u00e5rsaket metanet p\u00e5 Mars? Metan brytes ned sv\u00e6rt raskt s\u00e5 snart det utsettes for selv Mars\u2019 tynne atmosf\u00e6re, noe som betyr at gassen som ble oppdaget av Curiosity og Mars Express m\u00e5 ha blitt dannet eller sluppet ut helt nylig. En teori er at metanet ble produsert for millioner, eller til og med milliarder av \u00e5r siden. Det kan ha v\u00e6rt fanget under jorden i all denne tiden, inntil det endelig klarte \u00e5 n\u00e5 overflaten, hvor det ble oppdaget av v\u00e5re robotutforskere.<\/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 av atmosf\u00e6rene p\u00e5 Mars og Jorden<\/figcaption><\/figure>\n<p>En annen teori er at metanet kan ha blitt produsert av bittesm\u00e5 livsformer p\u00e5 Mars, som produserer metan som et avfallsprodukt. Dette er en spennende mulighet, men det m\u00e5 samles inn flere bevis f\u00f8r vi kan trekke den konklusjonen!\u00a0<\/p>\n<p>Forskere legger for tiden st\u00f8rre vekt p\u00e5 geologiske forklaringer enn p\u00e5 biologiske. Metangass kan frigj\u00f8res fra bergarter over hele Mars, i sm\u00e5 mengder hver gang. Mars har ogs\u00e5 store mengder is, som kan binde metangass. N\u00e5r isen smelter eller sprekker, kan gassen slippe ut 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>Hvordan man danner og bryter ned metan p\u00e5 Mars<\/figcaption><\/figure>\n<p>Det neste trinnet i denne forskningen er \u00e5 g\u00e5 gjennom flere data fra Mars Express for \u00e5 finne andre tilfeller der metan kunne ha blitt p\u00e5vist. I tillegg kretser en ny romsonde, ESA-Roscosmos\u2019 ExoMars Trace Gas Orbiter, for tiden rundt Mars og unders\u00f8ker planetens atmosf\u00e6re. Hvem vet hva den vil oppdage!<\/p>\n<p><i>Et interessant faktum: Mars Express ble skutt opp i 2003, og det tok seks m\u00e5neder \u00e5 reise til Mars. Den er fortsatt i drift etter all denne tiden og hjelper oss med \u00e5 l\u00e6re mer om den r\u00f8de planeten.<\/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\/nb\/wp-json\/wp\/v2\/posts\/293","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/comments?post=293"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts\/293\/revisions"}],"predecessor-version":[{"id":4392,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts\/293\/revisions\/4392"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/media?parent=293"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/categories?post=293"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/tags?post=293"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/panel?post=293"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/language?post=293"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/age?post=293"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/duration?post=293"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/resource_type?post=293"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/audience?post=293"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/wf_post_folders?post=293"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}