{"id":391,"date":"2018-05-07T12:06:00","date_gmt":"2018-05-07T10:06:00","guid":{"rendered":"https:\/\/kids.esa.int\/mystery_of_the_missing_matter\/"},"modified":"2026-10-08T00:27:38","modified_gmt":"2026-10-07T22:27:38","slug":"mystery_of_the_missing_matter","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/sl\/mystery_of_the_missing_matter\/","title":{"rendered":"Skrivnost izginule snovi"},"content":{"rendered":"<div class=\"lede\">\n<p>Ali ste vedeli, da se zdi, da v vesolju manjka nekaj snovi? Morda ste \u017ee sli\u0161ali za temno snov, ki je zelo skrivnostna in jo znanstveniki \u0161e niso odkrili. Vendar pa je lahko skrivnostna tudi navadna snov, iz katere so narejene stvari, na katere smo navajeni: zvezde, planeti in vse, kar lahko vidimo, otipamo ali vonjamo! Pri preu\u010devanju bli\u017enjih galaksij smo ugotovili, da nekatere vsebujejo trikrat manj snovi, kot bi pri\u010dakovali. Na\u0161a galaksija \u2013 Mle\u010dna cesta \u2013 vsebuje manj kot polovico snovi, ki bi jo morala imeti! Kje je ta manjkajo\u010da snov?<\/p>\n<\/div>\n<p>Astronomi so vlo\u017eili veliko \u010dasa in truda v iskanje te manjkajo\u010de snovi. Namesto da bi se nahajala v glavnem delu galaksij, kjer je ve\u010dina zvezd, je skupina raziskovalcev pri\u0161la na idejo: morda se ta snov nahaja v halojih galaksij. Haloi so obmo\u010dja vro\u010dega plina, ki obdajajo galaksije. Haloi je te\u017eko opazovati, zato astronomi obi\u010dajno lahko le pokukajo vanje, ne vidijo pa dale\u010d. Ali bi lahko bili galakti\u010dni haloi idealno skrivali\u0161\u010de za manjkajo\u010do snov v vesolju?<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"2500\" data-credit=\"ESA-C. Carreau\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/05\/XMM-Newton\" 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\/2018\/05\/xmm-newton\/17879070-2-eng-GB\/XMM-Newton.jpg\" alt=\"XMM-Newton\"><figcaption>XMM-Newton<\/figcaption><\/figure>\n<p>Skupina astronomov je z vesoljskim teleskopom ESA, imenovanim XMM-Newton, raziskala galakti\u010dne haloje globlje kot kdajkoli prej, da bi poiskala snov. XMM-Newton je rentgenski teleskop, kar pomeni, da ne vidi obi\u010dajne svetlobe, ki jo zaznavajo na\u0161a o\u010desa, temve\u010d opazuje rentgenske \u017earke. Prou\u010devanje galakti\u010dnih halov z rentgenskimi \u017earki omogo\u010da bolj\u0161e opazovanje!<\/p>\n<p>Ekipa je preu\u010dila \u0161est spiralnih galaksij in iskala namige, da bi v njih morda bila prisotna snov. Po pregledu podatkov so bili pripravljeni objaviti svoje ugotovitve: skoraj tri \u010detrtine pri\u010dakovane snovi je \u0161e vedno manjkalo!<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"3774\" data-credit=\"ESA\/XMM-Newton; J-T. Li (University of Michigan, USA); Sloan Digital Sky Survey (SDSS)\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/05\/Searching_galactic_haloes_for_missing_matter\" 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\/2018\/05\/searching_galactic_haloes_for_missing_matter\/17907606-2-eng-GB\/Searching_galactic_haloes_for_missing_matter.jpg\" alt=\"Searching galactic haloes for \u2018missing\u2019 matter\"><figcaption>Iskanje \u2018izgubljene\u2019 snovi v galakti\u010dnih halojih<\/figcaption><\/figure>\n<p>Kje bi torej lahko bila? Obstaja nekaj teorij. Morda je shranjena v nekem plinu, ki ga te\u017eko opazujemo. Lahko bi bila v delu vesolja, ki ga \u0161e nismo preiskali. Ali pa je ta snov morda prisotna v halojih, vendar so njeni rentgenski \u017earki pre\u0161ibki, da bi jih lahko zaznal celo satelit XMM-Newton.<\/p>\n<p>Znanstveniki si \u017eelijo nadaljevati z raziskovanjem. Morda bomo nekega dne razvozlali uganko izginule snovi!<\/p>\n<p><b>Zanimiv podatek:<\/b> Prihodnji teleskop ESA za visokoenergijsko astrofiziko (Advanced Telescope for High-ENergy Astrophysics) bo raziskoval zunanje predele galaksij v iskanju izgubljene snovi.<\/p>","protected":false},"excerpt":{"rendered":"<p>Did you know that the Universe seems to be missing some matter? You may have heard of dark matter, which is very mysterious and has yet to be found by [&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\/2018\/05\/anatomy_of_the_milky_way\/17882733-2-eng-GB\/Anatomy_of_the_Milky_Way.jpg","esa_banner_description":"Anatomy of the Milky Way","esa_banner_credit":"NASA\/JPL-Caltech; right: ESA; layout: ESA\/ATG medialab","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/05\/Anatomy_of_the_Milky_Way","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-391","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\/sl\/wp-json\/wp\/v2\/posts\/391","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/comments?post=391"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/391\/revisions"}],"predecessor-version":[{"id":4438,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/391\/revisions\/4438"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/media?parent=391"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/categories?post=391"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/tags?post=391"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/panel?post=391"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/language?post=391"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/age?post=391"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/duration?post=391"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/resource_type?post=391"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/audience?post=391"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/wf_post_folders?post=391"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}