{"id":1131,"date":"2004-11-16T08:19:00","date_gmt":"2004-11-16T07:19:00","guid":{"rendered":"https:\/\/kids.esa.int\/mars_valleys_and_volcanoes\/"},"modified":"2026-10-08T00:36:21","modified_gmt":"2026-10-07T22:36:21","slug":"mars_valleys_and_volcanoes","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/nb\/mars_valleys_and_volcanoes\/","title":{"rendered":"Mars\u2019 daler og vulkaner"},"content":{"rendered":"<div class=\"lede\">\n<p>Bilder sendt tilbake av romfart\u00f8y som ESAs Mars Express viser at Mars har mange store nedslagskratere. De fleste av disse ligger s\u00f8r for ekvator. De ser ut til \u00e5 ha blitt dannet av meteoritter som krasjet inn i overflaten for milliarder av \u00e5r siden. Det st\u00f8rste krateret er omtrent 1800 km i diameter \u2013 stort nok til \u00e5 svelge halvparten av Europa.<\/p>\n<\/div>\n<p>Mars\u2019 overflate har imidlertid endret seg i l\u00f8pet av planetens levetid. Et tydelig trekk er det enorme dalsystemet \u2013 Valles Marineris \u2013 n\u00e6r planetens ekvator. Med en lengde p\u00e5 rundt 5000 km ville det strekke seg helt fra Paris til New York.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1467\" data-credit=\"ESA\/DLR\/FU Berlin (G. Neukum)\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2004\/07\/Perspective_view_of_deposits_in_Melas_Chasma2\" 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\/2004\/07\/perspective_view_of_deposits_in_melas_chasma2\/17871337-2-eng-GB\/Perspective_view_of_deposits_in_Melas_Chasma.jpg\" alt=\"Perspective view of deposits in Melas Chasma\"><figcaption>Perspektivbilde av avsetninger i Melas Chasma<\/figcaption><\/figure>\n<p>Dalene ser ut til \u00e5 ha blitt dannet ved sprekker i planetens overflate, da den steinete jordskorpen ble strukket ut og revet fra hverandre. Dalene er n\u00e5 s\u00e5 brede at en person som st\u00e5r p\u00e5 den ene kanten, ikke vil kunne se den andre siden.<\/p>\n<figure class=\"wp-block-image size-natural\" data-width=\"400\" data-credit=\"ESA\/DLR\/FU Berlin (G. Neukum)\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2004\/02\/Olympus_Mons_HRSC2\" 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\/2004\/02\/olympus_mons_hrsc2\/17902455-2-eng-GB\/Olympus_Mons_HRSC.jpg\" alt=\"\"><\/figure>\n<p>Ikke langt mot vest ligger fem enorme vulkaner. Den mest imponerende av dem alle er Olympus Mons, den st\u00f8rste vulkanen i solsystemet. Den er bredere enn England og tre ganger h\u00f8yere enn Mount Everest, det h\u00f8yeste fjellet p\u00e5 jorden. Ingen av disse vulkanene er aktive for \u00f8yeblikket.<\/p>","protected":false},"excerpt":{"rendered":"<p>Pictures sent back by spacecraft such as ESA&#8217;s Mars Express show that Mars has many large impact craters. Most of these are to the south of the equator. They seem [&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\/2004\/11\/crater_hale_in_argyre_basin3\/17910048-2-eng-GB\/Crater_Hale_in_Argyre_basin.jpe","esa_banner_description":"Crater Hale in Argyre basin","esa_banner_credit":"ESA\/DLR\/FU Berlin (G. Neukum)","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2004\/11\/Crater_Hale_in_Argyre_basin3","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-1131","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\/nb\/wp-json\/wp\/v2\/posts\/1131","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=1131"}],"version-history":[{"count":5,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts\/1131\/revisions"}],"predecessor-version":[{"id":4864,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts\/1131\/revisions\/4864"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/media?parent=1131"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/categories?post=1131"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/tags?post=1131"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/panel?post=1131"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/language?post=1131"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/age?post=1131"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/duration?post=1131"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/resource_type?post=1131"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/audience?post=1131"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/wf_post_folders?post=1131"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}