{"id":1129,"date":"2004-11-15T16:08:00","date_gmt":"2004-11-15T15:08:00","guid":{"rendered":"https:\/\/kids.esa.int\/saturn_s_moons\/"},"modified":"2026-10-08T00:36:20","modified_gmt":"2026-10-07T22:36:20","slug":"saturn_s_moons","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fi\/saturn_s_moons\/","title":{"rendered":"Saturnuksen kuut"},"content":{"rendered":"
\n

Saturnuksella on 31 tunnettua kuuta \u2013 enemm\u00e4n kuin mill\u00e4\u00e4n muulla planeetalla paitsi Jupiterilla. Yksi niist\u00e4, Titan, on planeetan kokoinen, mutta muut ovat paljon pienempi\u00e4. Suurin osa kuista on j\u00e4isi\u00e4, ja niiden pinnalla on lukuisia erikokoisia py\u00f6reit\u00e4 kraattereita. N\u00e4m\u00e4 ovat syntyneet, kun komeetat ja kiviset meteoriitit ovat t\u00f6rm\u00e4nneet niihin.<\/p>\n<\/div>\n

Tethysill\u00e4 on valtava kraatteri, jonka keskell\u00e4 kohoaa huippu, mink\u00e4 vuoksi se muistuttaa \u2018Kuolemant\u00e4hte\u00e4\u2019 T\u00e4htien sota -elokuvista. My\u00f6s Mimasilla on j\u00e4ttim\u00e4inen kraatteri, jonka halkaisija on satoja kilometrej\u00e4.<\/p>\n

Vaikka niiden pinnat ovat eritt\u00e4in kylmi\u00e4, joidenkin kuiden sisus n\u00e4ytt\u00e4\u00e4 olevan l\u00e4mmin. Enceladuksen pinnasta osa on sile\u00e4\u00e4, ja se n\u00e4ytt\u00e4\u00e4 olevan peitetty aineella, jota on purkautunut j\u00e4\u00e4vuorilta.<\/p>\n

\"Iapetus:
Iapetus: valo ja pimeys<\/figcaption><\/figure>\n

Toinen outo maailma on Iapetus. Sen toinen puoli on eritt\u00e4in kirkas, mutta vastakkaisella puolella on mustempi kuin hiili. Pienemm\u00e4t kuut kiert\u00e4v\u00e4t joko hyvin l\u00e4hell\u00e4 renkaita tai kaukana planeetasta. Kaikkein kaukaisimmat kuut k\u00e4ytt\u00e4ytyv\u00e4t kuin rattijuopot, jotka ajavat v\u00e4\u00e4r\u00e4\u00e4n suuntaan yksisuuntaisella kadulla. Niiden uskotaan tulleen liian l\u00e4helle Saturnusta ja joutuneen sen voimakkaan painovoiman vangiksi.<\/p>\n

Jotkut pienemmist\u00e4 kuista kiert\u00e4v\u00e4t renkaiden sis\u00e4puolella. Ne toimivat \u2018paimenina\u2019, jotka pit\u00e4v\u00e4t rengaspartikkelit paikoillaan. Kaksi niist\u00e4 jopa vaihtaa kiertorataa, kun toinen ohittaa toisen.<\/p>","protected":false},"excerpt":{"rendered":"

Saturn has 31 known moons \u2013 more than any other planet except Jupiter. One of them, Titan, is planet-sized, but the others are much smaller. Most of the moons are […]<\/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\/2004\/11\/view_of_tethys_beyond_saturn2\/17882215-2-eng-GB\/View_of_Tethys_beyond_Saturn.jpg","esa_banner_description":"View of Tethys beyond Saturn","esa_banner_credit":"NASA\/JPL\/Space Science Institute","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2004\/11\/View_of_Tethys_beyond_Saturn2","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":[10,11,12],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1129","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-planets-and-moons","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/1129","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/comments?post=1129"}],"version-history":[{"count":5,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/1129\/revisions"}],"predecessor-version":[{"id":4863,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/1129\/revisions\/4863"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/media?parent=1129"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/categories?post=1129"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/tags?post=1129"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/panel?post=1129"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/language?post=1129"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/age?post=1129"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/duration?post=1129"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/resource_type?post=1129"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/audience?post=1129"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/wf_post_folders?post=1129"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}