{"id":966,"date":"2005-01-03T12:57:00","date_gmt":"2005-01-03T11:57:00","guid":{"rendered":"https:\/\/kids.esa.int\/touch_down_on_titan\/"},"modified":"2026-10-08T00:34:18","modified_gmt":"2026-10-07T22:34:18","slug":"touch_down_on_titan","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fi\/touch_down_on_titan\/","title":{"rendered":"Laskeutuminen Titaniin"},"content":{"rendered":"
\n

450 vuotta sitten hollantilainen t\u00e4htitieteilij\u00e4 Christiaan Huygens l\u00f6ysi Saturnuksen kiertoradalla olevan suuren kuun. Se nimettiin lopulta Titaniksi, antiikin Kreikan legendoissa esiintyv\u00e4n j\u00e4ttil\u00e4isen mukaan.<\/p>\n<\/div>\n

Titan oli todellakin j\u00e4ttil\u00e4inen \u2013 aurinkokunnan toiseksi suurin kuu. Mutta se on yh\u00e4 t\u00e4n\u00e4kin p\u00e4iv\u00e4n\u00e4 mysteerin verhoama maailma. Sen pinta on piilossa oranssinv\u00e4risen sumun peiton alla.<\/p>\n

Tutkijat tiet\u00e4v\u00e4t, ett\u00e4 sen paksu ilmakeh\u00e4 koostuu p\u00e4\u00e4asiassa typest\u00e4, aivan kuten Maassakin. Se sis\u00e4lt\u00e4\u00e4 my\u00f6s metaania, kaasua, jota poltamme kodeissamme ja tehtaissamme.<\/p>\n

Pinnan l\u00e4mp\u00f6tila on kuitenkin \u2013180 \u00b0C, mik\u00e4 on tarpeeksi kylm\u00e4\u00e4, jotta j\u00e4\u00e4 muuttuu kivenkovaksi. Siell\u00e4 on luultavasti liian kylm\u00e4\u00e4 el\u00e4m\u00e4n syntymiselle, vaikka syv\u00e4ll\u00e4 maan alla saattaakin olla meri.<\/p>\n

\"Artist
Taiteilijan n\u00e4k\u00f6kulma<\/figcaption><\/figure>\n

Ainoa tapa paljastaa Titanin salaisuudet on l\u00e4hett\u00e4\u00e4 sinne avaruusalus. 14. tammikuuta ESA:n Huygens-luotain laskeutuu laskuvarjolla planeetan ilmakeh\u00e4n l\u00e4pi.<\/p>\n

Sen kuusi mittauslaitetta ottavat ensimm\u00e4iset kuvat t\u00e4h\u00e4n asti n\u00e4kym\u00e4tt\u00f6m\u00e4st\u00e4 pinnasta ja kertovat meille, millainen Titan todella on. Huygens osuu maahan 5 metrin sekuntivauhdilla \u2013 aivan kuin hypp\u00e4isi tuolilta lattialle.<\/p>\n

T\u00f6rm\u00e4\u00e4k\u00f6 se kiinte\u00e4\u00e4n j\u00e4\u00e4h\u00e4n, putoaa metaanimereen vai vajoaako se limamassaan? Pysy kuulolla!<\/p>","protected":false},"excerpt":{"rendered":"

450 years ago, a Dutch astronomer named Christiaan Huygens discovered a large moon orbiting Saturn. It was eventually named Titan, after a giant in old Greek legends. Titan was indeed […]<\/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\/2000\/10\/christiaan_huygens_1629-16952\/17866452-3-eng-GB\/Christiaan_Huygens_1629-1695.jpg","esa_banner_description":"Christiaan Huygens (1629-1695)","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2000\/10\/Christiaan_Huygens_1629-16952","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":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-966","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-planets-and-moons"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/966","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=966"}],"version-history":[{"count":5,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/966\/revisions"}],"predecessor-version":[{"id":4759,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/966\/revisions\/4759"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/media?parent=966"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/categories?post=966"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/tags?post=966"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/panel?post=966"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/language?post=966"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/age?post=966"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/duration?post=966"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/resource_type?post=966"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/audience?post=966"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/wf_post_folders?post=966"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}