{"id":867,"date":"2011-04-26T08:48:00","date_gmt":"2011-04-26T06:48:00","guid":{"rendered":"https:\/\/kids.esa.int\/esa_astronaut_to_launch_on_dark_matter_mission\/"},"modified":"2026-10-08T00:33:10","modified_gmt":"2026-10-07T22:33:10","slug":"esa_astronaut_to_launch_on_dark_matter_mission","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/sv\/esa_astronaut_to_launch_on_dark_matter_mission\/","title":{"rendered":"ESA-astronaut ska delta i uppdrag om m\u00f6rk materia"},"content":{"rendered":"
\n

Se dig omkring. Det verkar uppenbart att allt best\u00e5r av fasta \u00e4mnen, v\u00e4tskor och gaser. Men dina \u00f6gon bedras. St\u00f6rre delen av universum best\u00e5r inte av vanlig materia. Ist\u00e4llet verkar det till stor del best\u00e5 av mystisk m\u00f6rk materia och \u00e4nnu mer mystisk m\u00f6rk energi. F\u00f6r att l\u00e4ra oss mer om detta osynliga universum ska ett kraftfullt nytt instrument, k\u00e4nt som Alpha Magnetic Spectrometer (AMS-02), snart levereras till den internationella rymdstationen (ISS).<\/p>\n<\/div>\n

AMS-02 kommer att transporteras till stationen i slutet av april, under rymdf\u00e4rjan Endeavours sista flygning. Ombord kommer \u00e4ven ESA-astronauten Roberto Vittori och fem kollegor att finnas. Roberto \u00e4r den f\u00f6rsta ESA-astronauten som har flugit till stationen tre g\u00e5nger. Han kommer ocks\u00e5 att bli den siste europ\u00e9n \u2013 och den siste icke-amerikanen \u2013 som flyger med rymdf\u00e4rjan.<\/p>\n

En av hans uppgifter blir att med hj\u00e4lp av Endeavours robotarm lyfta partikeldetektorn AMS-02 ur lastrummet och f\u00e4sta den p\u00e5 ISS. Instrumentet, som v\u00e4ger sju ton, kommer att vara i drift i minst tre \u00e5r. Det ska m\u00e4ta vad som h\u00e4nder n\u00e4r h\u00f6genergipartiklar, s\u00e5 kallade kosmiska str\u00e5lar, anl\u00e4nder fr\u00e5n avl\u00e4gsna galaxer. Eventuella m\u00e4rkliga partiklar som skapas vid kollisionerna med dessa kosmiska str\u00e5lar kan utg\u00f6ra bevis f\u00f6r att antimateria eller m\u00f6rk materia existerar.<\/p>\n

Man tror att lika stora m\u00e4ngder materia och antimateria skapades under Big Bang, men antimaterian verkar ha f\u00f6rsvunnit fr\u00e5n dagens universum. M\u00f6rk materia tros vara betydligt vanligare \u00e4n vanlig materia, men den har \u00e4nnu inte kunnat p\u00e5visas direkt. Namnet \u2018DAMA\u2019, som Roberto Vittoris uppdrag har f\u00e5tt, speglar denna jakt p\u00e5 m\u00f6rk materia.<\/p>","protected":false},"excerpt":{"rendered":"

Look around. It seems obvious that everything is made of solids, liquids and gases. However, your eyes are being deceived. Most of the Universe is not made of ordinary matter. […]<\/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\/2007\/05\/the_ring_of_dark_matter2\/17893833-2-eng-GB\/The_ring_of_dark_matter.jpg","esa_banner_description":"","esa_banner_credit":"NASA, ESA, M. Jee and H. Ford (Johns Hopkins University)","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2007\/05\/The_ring_of_dark_matter2","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-867","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\/sv\/wp-json\/wp\/v2\/posts\/867","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=867"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/867\/revisions"}],"predecessor-version":[{"id":2010,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/867\/revisions\/2010"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/media?parent=867"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/categories?post=867"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/tags?post=867"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/panel?post=867"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/language?post=867"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/age?post=867"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/duration?post=867"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/resource_type?post=867"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/audience?post=867"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/wf_post_folders?post=867"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}