{"id":188492,"date":"2026-03-08T02:59:52","date_gmt":"2026-03-08T02:59:52","guid":{"rendered":"https:\/\/www.europesays.com\/fi\/188492\/"},"modified":"2026-03-08T02:59:52","modified_gmt":"2026-03-08T02:59:52","slug":"pitaisi-olla-mahdotonta-uusi-havainto-laheisesta-aurinkokunnasta-on-mysteeri-tahtitieteilijoille","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/fi\/188492\/","title":{"rendered":"Pit\u00e4isi olla mahdotonta: Uusi havainto l\u00e4heisest\u00e4 aurinkokunnasta on mysteeri t\u00e4htitieteilij\u00f6ille"},"content":{"rendered":"<p>Uusia kysymyksi\u00e4<\/p>\n<p>Kun kyseess\u00e4 on kiviydin, joka imee kaasua itseens\u00e4, prosessia kutsutaan nimell\u00e4 bottom-up. Top-down -prosessissa puolestaan kaasuplaneetat muodostuvat, kun osa kaasukiekosta romahtaa, kuten ruskeiden k\u00e4\u00e4pi\u00f6iden tapauksessa.<\/p>\n<p>Tutkijat ovat yll\u00e4ttyneit\u00e4 siit\u00e4, ett\u00e4 HR 8799 -aurinkokunnan planeetoissa, jotka ovat 5\u201310 kertaa niin painavia kuin Jupiter ja kiert\u00e4v\u00e4t t\u00e4hte\u00e4\u00e4n paljon kauempana kuin Jupiter Aurinkoa, on kuitenkin merkkej\u00e4 siit\u00e4, ett\u00e4 ydin on imenyt kaasua itseens\u00e4.<\/p>\n<p>T\u00e4m\u00e4 viittaa siihen, ett\u00e4 planeettojen muodostuminen voi olla paljon tehokkaampaa kuin teorioissa on t\u00e4h\u00e4n asti oletettu.<\/p>\n","protected":false},"excerpt":{"rendered":"Uusia kysymyksi\u00e4 Kun kyseess\u00e4 on kiviydin, joka imee kaasua itseens\u00e4, prosessia kutsutaan nimell\u00e4 bottom-up. Top-down -prosessissa puolestaan kaasuplaneetat&hellip;\n","protected":false},"author":2,"featured_media":188493,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[453,33,31,30,118,452,32,119],"class_list":{"0":"post-188492","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-avaruus","8":"tag-avaruus","9":"tag-fi","10":"tag-finland","11":"tag-finnish","12":"tag-science","13":"tag-space","14":"tag-suomi","15":"tag-tiede"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@fi\/116191325242714175","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/fi\/wp-json\/wp\/v2\/posts\/188492","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/fi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/fi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fi\/wp-json\/wp\/v2\/comments?post=188492"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/fi\/wp-json\/wp\/v2\/posts\/188492\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fi\/wp-json\/wp\/v2\/media\/188493"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/fi\/wp-json\/wp\/v2\/media?parent=188492"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/fi\/wp-json\/wp\/v2\/categories?post=188492"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/fi\/wp-json\/wp\/v2\/tags?post=188492"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}