{"id":881,"date":"2006-09-07T12:06:00","date_gmt":"2006-09-07T10:06:00","guid":{"rendered":"https:\/\/kids.esa.int\/supernovas\/"},"modified":"2026-10-08T00:33:19","modified_gmt":"2026-10-07T22:33:19","slug":"supernovas","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/et\/supernovas\/","title":{"rendered":"Supernoovad"},"content":{"rendered":"
\n

Aeg-ajalt valgustab meie Linnutee galaktikat tohutu plahvatus. See v\u00e4givaldne s\u00fcndmus, mida nimetatakse supernoovaks, t\u00e4histab superhiiglase \u2013 P\u00e4ikesest mitu korda suurema raskekaalu t\u00e4he \u2013 surma. \u00dcks viimaseid supernoovasid Linnutees toimus umbes 340 aastat tagasi Kassiopeia t\u00e4htkujus, mist\u00f5ttu on see tuntud kui Kassiopeia A (Cas A).<\/p>\n<\/div>\n

Cas A asub Maast k\u00fcmne tuhande valgusaasta kaugusel. Sellised observatooriumid nagu NASA-ESA Hubble\u2019i kosmoseteleskoop on p\u00f5hjalikult uurinud selle s\u00e4rava gaasi ja tolmu j\u00e4\u00e4nud pilve.<\/p>\n

\"Zooming
Cassiopeia A suurendamine<\/figcaption><\/figure>\n

Piltidel on n\u00e4ha purustatud materjalir\u00f5ngas, mis liigub plahvatuskohast kiiresti eemale. Osa materjalist liigub kiirusega umbes 50 miljonit km tunnis (piisavalt kiiresti, et j\u00f5uda Maalt Kuule 30 sekundiga!). Suured prahivoolud helendavad, sest neid on soojendanud m\u00f6\u00f6duva supernoova l\u00f6\u00f6klaine.<\/p>\n

Supernoova plahvatusi on mitut liiki. Cas A plahvatas, kui v\u00e4ike t\u00e4ht, mida nimetatakse valgeks k\u00e4\u00e4buseks, t\u00f5mbas endale l\u00e4hedalasuvast t\u00e4hest palju ainet. Gaasi kogunedes muutus valge k\u00e4\u00e4bus nii kuumaks ja aktiivseks, et plahvatas. Teised supernoovad tekivad siis, kui massiivsete t\u00e4htede tuumades l\u00f5peb tuumak\u00fctus. Kuna tuum ei suuda enam energiat eraldada, kukub see kokku ja h\u00e4vitab t\u00e4he.<\/p>\n

Supernoovad on olulised, sest need levitavad t\u00e4hematerjali \u00fcle kogu galaktika. Peaaegu k\u00f5ik Maal (kaasa arvatud meie!) koosneb elementidest (nagu s\u00fcsinik ja raud), mis p\u00e4rinevad sellest t\u00e4hetolmust.<\/p>","protected":false},"excerpt":{"rendered":"

Every now and again our Milky Way galaxy is lit up by a huge explosion. Known as a supernova, this violent event marks the death of a supergiant \u2013 a […]<\/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\/2006\/08\/hubble_s_view_of_supernova_explosion_cassiopeia_a2\/18245292-2-eng-GB\/Hubble_s_view_of_supernova_explosion_Cassiopeia_A.jpg","esa_banner_description":"Hubble\u2019s view of supernova explosion Cassiopeia A","esa_banner_credit":"NASA, ESA, and the Hubble Heritage (STScI\/AURA)-ESA\/Hubble Collaboration","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2006\/08\/Hubble_s_view_of_supernova_explosion_Cassiopeia_A2","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":[10,11,21],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-881","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-stars-and-galaxies"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/881","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/comments?post=881"}],"version-history":[{"count":5,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/881\/revisions"}],"predecessor-version":[{"id":4717,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/881\/revisions\/4717"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/media?parent=881"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/categories?post=881"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/tags?post=881"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/panel?post=881"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/language?post=881"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/age?post=881"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/duration?post=881"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/resource_type?post=881"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/audience?post=881"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/wf_post_folders?post=881"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}