{"id":210763,"date":"2026-06-22T13:25:43","date_gmt":"2026-06-22T13:25:43","guid":{"rendered":"https:\/\/www.europesays.com\/ee\/210763\/"},"modified":"2026-06-22T13:25:43","modified_gmt":"2026-06-22T13:25:43","slug":"james-webbi-teleskoop-paljastas-eksoplaneedil-metalli-ja-kalliskivivihma-universum","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/ee\/210763\/","title":{"rendered":"James Webbi teleskoop paljastas eksoplaneedil metalli- ja kalliskivivihma | Universum"},"content":{"rendered":"<p>Kui arvate, et Eesti ilmastik on heitlik, siis kujutage ette maailma, kus tuul puhub kiirusega 18 000 kilomeetrit tunnis ning \u00f6ises taevas sajab vee asemel vedelat metalli, rubiine ja safiire. \u00dchtlasi n\u00e4itab v\u00e4rske uuring, et selle meist kaugel asuva eksoplaneedi \u00f5htud on tunduvalt kuumemad kui hommikud.<\/p>\n<p>Sellist \u00fcksikasjalikku sissevaadet eksoplaneedi WASP-121b atmosf\u00e4\u00e4ri pakuvad Saksamaa astronoomiainstituudi teadlased. Nad kasutasid James Webbi kosmoseteleskoopi, et j\u00e4lgida planeedi atmosf\u00e4\u00e4ri l\u00e4bivat t\u00e4hevalgust hetkel, mil planeet oma kodut\u00e4he eest l\u00e4bi liikus.<\/p>\n<p>Anal\u00fc\u00fcs t\u00f5i esile, et gaasihiiglase elur\u00fctm on erakordne: \u00fcks aasta kestab seal vaid 30,5 tundi. Lisaks on t\u00e4he tohutu gravitatsioon venitanud muidu \u00fcmmarguse planeedi pigem ragbipalli meenutavaks ovaaliks.<\/p>\n<p>\u00c4\u00e4rmusliku ilma taga on planeedi omap\u00e4rane suhe oma kodut\u00e4hega. Nimelt on WASP-121b loodeliselt lukustunud, mis t\u00e4hendab, et selle \u00fcks k\u00fclg on alati p\u00f6\u00f6ratud t\u00e4he poole, teisel poolel valitseb aga igavene \u00f6\u00f6.<\/p>\n<p>Andmed n\u00e4itasid, et planeedi \u00f5htupoolne atmosf\u00e4\u00e4r neelab pisut rohkem t\u00e4hevalgust kui hommikune. Teadlaste s\u00f5nul peitub seletus selles, et \u00f5htupoolel on palju kuumem, mis paneb sealsed gaasid paisuma.<\/p>\n<p>Puhevile aetud atmosf\u00e4\u00e4r katab ruumist suurema osa ja blokeeribki rohkem t\u00e4hevalgust. Kuumus on sealjuures niiv\u00f5rd \u00e4\u00e4rmuslik, et suudab atmosf\u00e4\u00e4ri \u00fclakihtides l\u00f5hkuda isegi veemolekule. Jahedamal hommikupoolel v\u00f5ivad taevast katta aga hoopis kivimite koostisosadest ehk silikaatidest koosnevad pilved.<\/p>\n<p>Planeedi p\u00e4evapoole suures kuumuses aurustub ka mineraale ning metalle, mida v\u00f5imsad tuuled kannavad koos kuumusega edasi jahedama \u00f6\u00f6poole suunas.<\/p>\n<p>K\u00fclmemasse piirkonda j\u00f5udes need kondenseeruvad ja langevad vihmana alla. Seet\u00f5ttu sajabki sel planeedil vee asemel vedelat rauda ning kalliskive, nagu rubiine ja safiire.<\/p>\n<p>Uurijad kirjutavad oma tulemustest ajakirjas <a href=\"https:\/\/www.nature.com\/articles\/s41550-026-02887-6\" target=\"_blank\" rel=\"noopener nofollow\">Nature Astronomy<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"Kui arvate, et Eesti ilmastik on heitlik, siis kujutage ette maailma, kus tuul puhub kiirusega 18 000 kilomeetrit&hellip;\n","protected":false},"author":2,"featured_media":210764,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_share_on_mastodon":"0"},"categories":[12],"tags":[26,27,37,33,35,34,36,31,32,21,86229,287,28,29,19,289,25,21193,23,24,22,20,30,86228],"class_list":["post-210763","post","type-post","status-publish","format-standard","has-post-thumbnail","category-eesti","tag-breaking-news","tag-breakingnews","tag-ee","tag-eesti","tag-eesti-keel","tag-estonia","tag-estonian","tag-featured-news","tag-featurednews","tag-headlines","tag-james-webbi-teleskoop","tag-kosmos","tag-latest-news","tag-latestnews","tag-news","tag-planeet","tag-populaarseimad-lood","tag-tahed","tag-top-stories","tag-topstories","tag-uldised-uudised","tag-uudised","tag-viimased-uudised","tag-wasp-121b"],"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@ee\/116793988052700822","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts\/210763","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/comments?post=210763"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts\/210763\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/media\/210764"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/media?parent=210763"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/categories?post=210763"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/tags?post=210763"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}