{"id":181,"date":"2021-12-02T12:51:04","date_gmt":"2021-12-02T11:51:04","guid":{"rendered":"https:\/\/kids.esa.int\/spacecraft_astronomers_use_esa_space_telescope_to_find_missing_matter\/"},"modified":"2026-10-08T00:25:12","modified_gmt":"2026-10-07T22:25:12","slug":"spacecraft_astronomers_use_esa_space_telescope_to_find_missing_matter","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/sl\/spacecraft_astronomers_use_esa_space_telescope_to_find_missing_matter\/","title":{"rendered":"Astronomi uporabljajo vesoljski teleskop ESA za iskanje pogre\u0161ane snovi"},"content":{"rendered":"<div class=\"lede\">\n<p>Vse, kar vidimo v vesolju, na primer zvezde, planeti in celo ljudje, je sestavljeno iz vrste snovi, imenovane barioni. Vendar se zdi, da veliko barionov v vesolju manjka, njihovo iskanje pa je bilo zelo zahtevno. Skupina astronomov, ki uporablja vesoljski teleskop ESA z imenom XMM-Newton, pomaga re\u0161iti to kozmi\u010dno uganko!<\/p>\n<\/div>\n<p>Vemo, koliko barionov naj bi bilo v vesolju, saj preu\u010dujemo tako imenovano kozmi\u010dno mikrovalovno ozadje, ki je najstarej\u0161a svetloba, nastala le 380.000 let po velikem poku. Zdi se, da so vsi barioni prisotni nekaj milijard let, nato pa se pribli\u017eno polovica izgubi!<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"700\" data-credit=\"ESA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/07\/Spider_senses2\" 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\/07\/spider_senses2\/17900532-2-eng-GB\/Spider_senses.jpg\" alt=\"Spider senses\"><figcaption>Pajkovski \u010duti<\/figcaption><\/figure>\n<p>Fabrizio Nicastro je eden od znanstvenikov, ki posku\u0161ajo re\u0161iti to uganko. Pojasnjuje: \u201cManjkajo\u010di barioni predstavljajo eno najve\u010djih ugank sodobne astrofizike. Vemo, da ta snov mora nekje obstajati, vidimo jo v zgodnjem vesolju, a potem je ne moremo ve\u010d zaznati. Kam je izginila?\u201d<\/p>\n<p>\u010ce se\u0161tejemo vse zvezde in plin v vesolju, skupaj z vsem drugim, kar so astronomi uspeli najti, \u0161e vedno manjka 40% barionov. Res se znajo dobro skrivati! Fabrizio in njegovi prijatelji so se odlo\u010dili, da bodo za iskanje uporabili poseben teleskop: XMM-Newton agencije ESA. Ta teleskop se nahaja v vesolju in opazuje rentgenske \u017earke namesto obi\u010dajne svetlobe, ki jo vidijo na\u0161a o\u010desa.<\/p>\n<p>Pogumni astronomi so s satelitom XMM-Newton opazovali kvazar, to je masivno galaksijo s supermasivno \u010drno luknjo v sredi\u0161\u010du, ki privla\u010di snov in oddaja veliko rentgenskih \u017earkov! S skrbnim preu\u010devanjem podatkov so odkrili sledi kisika, skrite v vesolju med nami in kvazarjem. Tega \u0161e nikoli prej nismo mogli videti! Fabrizio pojasnjuje: \u201cTam le\u017eijo ogromne zaloge snovi \u2013 vklju\u010dno s kisikom \u2013 in to ravno v koli\u010dini, ki smo jo pri\u010dakovali, zato lahko kon\u010dno zapolnimo vrzel v barionskem prora\u010dunu vesolja.\u201d<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"5945\" data-credit=\"Illustrations and composition: ESA \/ ATG medialab; data: ESA \/ XMM-Newton \/ F. Nicastro et al. 2018; cosmological simulation: R. Cen\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/07\/Detecting_the_warm-hot_intergalactic_medium\" 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\/07\/detecting_the_warm-hot_intergalactic_medium\/17892168-2-eng-GB\/Detecting_the_warm-hot_intergalactic_medium.jpg\" alt=\"Detecting the warm-hot intergalactic medium\"><figcaption>Odkrivanje toplega do vro\u010dega medgalakti\u010dnega medija<\/figcaption><\/figure>\n<p>Manjkajo\u010di barioni so se skrivali v nekak\u0161ni vro\u010di megli, ki se razteza ve\u010d sto tiso\u010d svetlobnih let v prostoru med galaksijami. Uganka je re\u0161ena, zdaj pa lahko astronomi za\u010dnejo preu\u010devati te barione, da bi o njih izvedeli ve\u010d!<\/p>\n<p><b>Zanimiv podatek:<\/b> \u010ceprav barionska snov sestavlja vse, kar vidimo, predstavlja le 5% vse snovi v vesolju! Skrivnostna temna snov predstavlja okoli 25%, temna energija pa okoli 70%.<\/p>","protected":false},"excerpt":{"rendered":"<p>Everything we see in space, such as stars, planets and even people, is made from a type of matter called baryons. However, a lot of the baryons in the Universe [&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\/07\/xmm-newton\/17910751-2-eng-GB\/XMM-Newton.jpg","esa_banner_description":"XMM-Newton","esa_banner_credit":"ESA-C. Carreau","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/07\/XMM-Newton","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-181","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\/181","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=181"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/181\/revisions"}],"predecessor-version":[{"id":4345,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/181\/revisions\/4345"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/media?parent=181"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/categories?post=181"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/tags?post=181"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/panel?post=181"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/language?post=181"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/age?post=181"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/duration?post=181"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/resource_type?post=181"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/audience?post=181"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/wf_post_folders?post=181"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}