{"id":821,"date":"2004-12-02T15:40:00","date_gmt":"2004-12-02T14:40:00","guid":{"rendered":"https:\/\/kids.esa.int\/beyond_earth\/"},"modified":"2026-10-08T00:32:39","modified_gmt":"2026-10-07T22:32:39","slug":"beyond_earth","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/sv\/beyond_earth\/","title":{"rendered":"Bortom jorden"},"content":{"rendered":"
\n

De flesta rymdfarkoster placeras i omloppsbanor runt jorden. Men detta \u00e4r inte alltid den b\u00e4sta platsen f\u00f6r vetenskapliga satelliter som utforskar det avl\u00e4gsna universumet.<\/p>\n<\/div>\n

Hubble-rymdteleskopet kretsar i en cirkul\u00e4r bana 600 km ovanf\u00f6r jordytan, med en lutning p\u00e5 28,5 grader mot ekvatorn. Denna bana runt jorden underl\u00e4ttar reparationer och underh\u00e5ll av observatoriet. D\u00e4remot skymmer jorden och m\u00e5nen stora delar av himlen.<\/p>\n

Hubbles efterf\u00f6ljare, James Webb-rymdteleskopet, kommer att befinna sig mycket l\u00e4ngre bort. Det kommer att placeras i en stabil bana vid den s\u00e5 kallade Lagrange-punkten L2, 1,5 miljoner km bort p\u00e5 jordens nattida.<\/p>\n

L2 \u00e4r en av jordens fem Lagrange-punkter. Vid dessa punkter upph\u00e4ver jordens, m\u00e5nens och solens dragningskrafter varandra, vilket g\u00f6r det enkelt att h\u00e5lla en satellit i samma position.<\/p>\n

Andra satelliter, som ESA:s SOHO-observatorium, m\u00e5ste hela tiden rikta blicken mot solen. Denna rymdfarkost befinner sig vid Lagrange-punkten L1, 1,5 miljoner km fr\u00e5n jorden i riktning mot solen.<\/p>\n

Eftersom jordens och solens gravitationskrafter balanserar varandra vid L1 kan SOHO sv\u00e4va mellan dem hela tiden utan att f\u00f6rbruka s\u00e4rskilt mycket br\u00e4nsle.<\/p>","protected":false},"excerpt":{"rendered":"

Most spacecraft are placed in orbits around the Earth. But this is not always the optimal place for scientific satellites that explore the distant universe. The Hubble Space Telescope follows […]<\/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\/2003\/05\/changing_seasons_on_saturn2\/17877220-2-eng-GB\/Changing_seasons_on_Saturn.jpg","esa_banner_description":"Changing seasons on Saturn","esa_banner_credit":"NASA and The Hubble Heritage Team (STScI\/AURA)","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2003\/05\/Changing_seasons_on_Saturn2","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":[10,65,40],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-821","post","type-post","status-publish","format-standard","hentry","category-learn","category-mission-control","category-technology","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/821","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=821"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/821\/revisions"}],"predecessor-version":[{"id":1964,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/821\/revisions\/1964"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/media?parent=821"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/categories?post=821"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/tags?post=821"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/panel?post=821"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/language?post=821"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/age?post=821"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/duration?post=821"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/resource_type?post=821"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/audience?post=821"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/wf_post_folders?post=821"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}