{"id":1084,"date":"2009-08-21T09:40:00","date_gmt":"2009-08-21T07:40:00","guid":{"rendered":"https:\/\/kids.esa.int\/the_mystery_of_martian_methane\/"},"modified":"2026-10-08T00:35:50","modified_gmt":"2026-10-07T22:35:50","slug":"the_mystery_of_martian_methane","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/nb\/the_mystery_of_martian_methane\/","title":{"rendered":"Mysteriet om metan p\u00e5 Mars"},"content":{"rendered":"
\n

Finnes det liv p\u00e5 Mars? Det er riktignok ingen som forventer \u00e5 finne intelligente marsboere, slik som de vi ser i filmen \u2018War of the Worlds\u2019. Resultater fra ESAs romsonde Mars Express og bakkebaserte observatorier tyder imidlertid p\u00e5 at enkle livsformer kan skjule seg under jorden p\u00e5 den r\u00f8de planeten.<\/p>\n<\/div>\n

N\u00f8kkelen til mysteriet er metan, en gass som p\u00e5 jorden brukes til matlaging og oppvarming. Mye av metanet i atmosf\u00e6ren v\u00e5r frigj\u00f8res av h\u00f8yt utviklede livsformer, for eksempel storfe som ford\u00f8yer mat. Det finnes imidlertid ogs\u00e5 andre m\u00e5ter \u00e5 produsere metan p\u00e5, for eksempel gjennom vulkansk aktivitet.<\/p>\n

Metan ble oppdaget p\u00e5 Mars i 2003. Siden gassen lett brytes ned, antok man at den ville forbli i Mars\u2019 atmosf\u00e6re i rundt 300 \u00e5r. En mer detaljert analyse viste at metanet faktisk var konsentrert i tre regioner. Dette tydet p\u00e5 at det ble sluppet ut akkurat n\u00e5, og at vi oppdaget det f\u00f8r det hadde rukket \u00e5 spre seg rundt planeten.<\/p>\n

S\u00e5 kom Mars med enda en overraskelse. I stedet for \u00e5 ta 300 \u00e5r \u00e5 forsvinne, var metanet nesten helt borte allerede i begynnelsen av 2006. Noe fjernet det fra atmosf\u00e6ren 600 ganger raskere enn forventet. Forskere ved ESA mistenker at planetens overflate kan v\u00e6re \u00e5rsaken. Enten blir metanet fanget opp i st\u00f8vet, eller s\u00e5 \u00f8delegger sv\u00e6rt reaktive kjemikalier som hydrogenperoksid det. Dette kan bety at overflaten er mye mer fiendtlig mot liv enn man tidligere trodde. I s\u00e5 fall m\u00e5 fremtidige utforskere bore dypt ned i undergrunnen for \u00e5 lete etter tegn p\u00e5 tidligere eller n\u00e5v\u00e6rende liv.<\/p>","protected":false},"excerpt":{"rendered":"

Is there life on Mars? Certainly, no one expects to find intelligent Martians, like those seen in the movie, ‘War of the Worlds’. However, results from ESA\u2019s Mars Express orbiter […]<\/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\/2008\/12\/mars_express6\/17874075-2-eng-GB\/Mars_Express.jpg","esa_banner_description":"Mars Express","esa_banner_credit":"Alex Lutkus","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2008\/12\/Mars_Express6","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":[10,11,12],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1084","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-planets-and-moons"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts\/1084","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=1084"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts\/1084\/revisions"}],"predecessor-version":[{"id":2227,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts\/1084\/revisions\/2227"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/media?parent=1084"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/categories?post=1084"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/tags?post=1084"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/panel?post=1084"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/language?post=1084"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/age?post=1084"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/duration?post=1084"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/resource_type?post=1084"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/audience?post=1084"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/wf_post_folders?post=1084"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}