{"id":929,"date":"2004-11-16T09:56:00","date_gmt":"2004-11-16T08:56:00","guid":{"rendered":"https:\/\/kids.esa.int\/life_on_mars\/"},"modified":"2026-10-08T00:33:53","modified_gmt":"2026-10-07T22:33:53","slug":"life_on_mars","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/sv\/life_on_mars\/","title":{"rendered":"Livet p\u00e5 Mars"},"content":{"rendered":"
\n

\u00c4ven med de st\u00f6rsta teleskopen \u00e4r det mycket sv\u00e5rt att se n\u00e5gra detaljer p\u00e5 Mars. I slutet av 1800-talet trodde vissa forskare att de kunde se raka linjer som korsade planetens yta. Dessa linjer f\u00f6rband gr\u00f6naktiga omr\u00e5den som s\u00e5g ut som om de var t\u00e4ckta av v\u00e4xter. Dessa forskare trodde att de raka linjerna var kanaler som byggts av marsianerna f\u00f6r att leda vatten till deras gr\u00f6dor.<\/p>\n<\/div>\n

Bilder fr\u00e5n rymdfarkoster har visat att dessa kanaler inte existerar. Det finns inga tecken p\u00e5 n\u00e5got liv \u2013 varken v\u00e4xter eller intelligenta marsbor \u2013 p\u00e5 planeten. Vi vet nu att Mars \u00e4r en mycket kall och torr planet, d\u00e4r flytande vatten inte kan f\u00f6rekomma p\u00e5 ytan. D\u00e4remot finns det stora omr\u00e5den med vattenis vid polkapporna. Det finns ocks\u00e5 mycket is i den frusna marken \u2013 ungef\u00e4r som i permafrostomr\u00e5dena i norra Kanada och Ryssland.<\/p>\n

Stora, uttorkade flodb\u00e4ddar tyder ocks\u00e5 p\u00e5 att det en g\u00e5ng fanns rikligt med rinnande vatten p\u00e5 ytan. F\u00e4rska resultat fr\u00e5n Mars Express och andra rymdfarkoster visar att det kan finnas flytande vatten djupt under jordytan. Om Mars en g\u00e5ng var varmare och fuktigare kan liv ha uppst\u00e5tt p\u00e5 den r\u00f6da planeten. Enkla livsformer, s\u00e5som bakterier, kan fortfarande finnas under den frusna ytan.<\/p>\n

\u00c5r 1996 meddelade en grupp forskare v\u00e4rlden att de hade hittat bevis p\u00e5 bakterier inuti en meteorit som kom fr\u00e5n Mars. Denna teori \u00e4r dock inte s\u00e4rskilt popul\u00e4r bland de flesta andra forskare. Om man i framtiden skulle hitta liv p\u00e5 Mars skulle det vara det f\u00f6rsta beviset p\u00e5 att vi inte \u00e4r ensamma i universum.<\/p>","protected":false},"excerpt":{"rendered":"

Even with the largest telescopes it is very hard to see much detail on Mars. In the late 1800s, some scientists thought they could see straight lines crossing the planet’s […]<\/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\/2002\/07\/the_mars_express_spacecraft_in_orbit_around_mars2\/17863233-3-eng-GB\/The_Mars_Express_spacecraft_in_orbit_around_Mars.jpg","esa_banner_description":"The Mars Express spacecraft in orbit around Mars","esa_banner_credit":"ESA 2001, Illustration by Medialab","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2002\/07\/The_Mars_Express_spacecraft_in_orbit_around_Mars2","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":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-929","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-planets-and-moons","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/929","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/comments?post=929"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/929\/revisions"}],"predecessor-version":[{"id":2072,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/929\/revisions\/2072"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/media?parent=929"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/categories?post=929"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/tags?post=929"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/panel?post=929"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/language?post=929"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/age?post=929"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/duration?post=929"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/resource_type?post=929"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/audience?post=929"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/wf_post_folders?post=929"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}