{"id":193,"date":"2021-12-02T12:45:12","date_gmt":"2021-12-02T11:45:12","guid":{"rendered":"https:\/\/kids.esa.int\/comets\/"},"modified":"2026-10-08T00:25:20","modified_gmt":"2026-10-07T22:25:20","slug":"comets","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/et\/comets\/","title":{"rendered":"Komeedid"},"content":{"rendered":"
\n

Iidsed inimesed kartsid komeete \u2013 \u00f6eldi, et need toovad kaasa eba\u00f5nne v\u00f5i ennustavad katastroofi. N\u00fc\u00fcd teame, et komeedid on v\u00e4ikesed j\u00e4\u00e4maailmad, mis on j\u00e4\u00e4nud \u00fcle planeetide tekkimisest. Arvatakse, et P\u00e4ikeses\u00fcsteemi \u00e4\u00e4realal, Pluto orbiidist kaugemal, asub miljardeid komeete.<\/p>\n<\/div>\n

Enamik komeete on nii v\u00e4ikesed ja asuvad nii kaugel, et me ei n\u00e4e neid isegi suurimate teleskoopidega. Kuid me n\u00e4eme neid siis, kui nad liiguvad P\u00e4ikese poole ja neile tekivad gaasi- ja tolmusabad. (S\u00f5na \u2018komeet\u2019 t\u00e4hendab \u201ekarvane t\u00e4ht\u201d.)<\/p>\n

P\u00e4ikese soojuse m\u00f5jul muutuvad j\u00e4\u00e4d gaasiks, mis voolab miljonite kilomeetrite kaugusele kosmosesse. Hoolimata nende pikkusest ei ole neis sisalduvad tolmuosakesed suuremad kui liivaterad.<\/p>\n

\"Rosetta
Rosetta \u2013 komeedi jahtija<\/figcaption><\/figure>\n

M\u00f5ned komeedid tiirlevad P\u00e4ikese \u00fcmber vaid m\u00f5ne aastaga. M\u00f5nedel \u2013 nagu n\u00e4iteks Halley komeedil \u2013 kulub selleks palju kauem aega. Teised ilmuvad vaid korra ja neid ei n\u00e4e enam kunagi. ESA kosmosesondi SOHO abil on avastatud tuhandeid v\u00e4ikeseid komeete, mis lendavad P\u00e4ikesele v\u00e4ga l\u00e4hedale. Paljud neist p\u00f5rkuvad P\u00e4ikesega kokku v\u00f5i rebenevad P\u00e4ikese tugeva gravitatsiooni m\u00f5jul t\u00fckkideks.<\/p>\n

2014. aastal teeb Euroopa kosmosesond \u201eRosetta\u201c ajalugu, minnes komeedi orbiidile ja laskmata selle pinnale maandumismooduli.<\/p>","protected":false},"excerpt":{"rendered":"

Ancient people were afraid of comets \u2013 they were said to bring bad luck or foretell disaster. We now know that comets are small ice worlds that have been left […]<\/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\/04\/giotto_s_art_shows_a_comet_in_the_background2\/17913109-2-eng-GB\/Giotto_s_art_shows_a_comet_in_the_background.jpg","esa_banner_description":"Giotto's art shows a comet in the background","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2003\/04\/Giotto_s_art_shows_a_comet_in_the_background2","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":[46,10,11],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-193","post","type-post","status-publish","format-standard","hentry","category-comets-and-meteors","category-learn","category-our-universe","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/193","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=193"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/193\/revisions"}],"predecessor-version":[{"id":4350,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/193\/revisions\/4350"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/media?parent=193"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/categories?post=193"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/tags?post=193"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/panel?post=193"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/language?post=193"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/age?post=193"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/duration?post=193"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/resource_type?post=193"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/audience?post=193"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/wf_post_folders?post=193"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}