{"id":965,"date":"2004-12-09T15:03:00","date_gmt":"2004-12-09T14:03:00","guid":{"rendered":"https:\/\/kids.esa.int\/titan_here_we_come\/"},"modified":"2026-10-08T00:34:17","modified_gmt":"2026-10-07T22:34:17","slug":"titan_here_we_come","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fi\/titan_here_we_come\/","title":{"rendered":"Titan, t\u00e4\u00e4lt\u00e4 tullaan!"},"content":{"rendered":"<div class=\"lede\">\n<p>Yksi avaruustutkimuksen historian j\u00e4nnitt\u00e4vimmist\u00e4 luvuista on alkamassa. Yli seitsem\u00e4n vuotta kest\u00e4neen, 3 miljardin kilometrin matkan j\u00e4lkeen ESA:n Huygens-luotain on valmis laskeutumaan Titanille, Saturnuksen suurimmalle kuulle.<\/p>\n<\/div>\n<p>Joulup\u00e4iv\u00e4n\u00e4 Huygens irtoaa hitaasti Cassini-emialuksesta. Pieni, lautasmainen avaruusalus, joka py\u00f6rii seitsem\u00e4n kertaa minuutissa, sy\u00f6ksyy nuolen lailla kohti savusumun peitt\u00e4m\u00e4\u00e4 kuuta.<\/p>\n<p>Kun se on ollut lepotilassa 20 p\u00e4iv\u00e4\u00e4, se saa her\u00e4tyssignaalin aluksen sis\u00e4isest\u00e4 kellosta. 14. tammikuuta luotain sy\u00f6ksyy Titanin yl\u00e4ilmakeh\u00e4\u00e4n noin 6 km:n sekuntinopeudella \u2013 10 kertaa nopeammin kuin Concorde.<\/p>\n<figure class=\"wp-block-image size-natural\" data-width=\"400\" data-credit=\"ESA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2004\/11\/Huygens_entering_Titan_s_atmosphere2\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2004\/11\/huygens_entering_titan_s_atmosphere2\/17903380-2-eng-GB\/Huygens_entering_Titan_s_atmosphere.jpg\" alt=\"Huygens entering Titan&#x27;s atmosphere\"><figcaption>Huygens saapuu Titanin ilmakeh\u00e4\u00e4n<\/figcaption><\/figure>\n<p>Kun avaruusaluksen l\u00e4mp\u00f6suojan l\u00e4mp\u00f6tila nousee 8 000 \u00b0C:een, sen ulkokuori hehkuu oranssinpunaisena. Mutta alle kahdessa minuutissa laskeutumisen vaikein vaihe on ohi.<\/p>\n<p>Kun nopeus on hidastunut 1 400 kilometriin tunnissa, hiiltynyt l\u00e4mp\u00f6suoja irtoaa, jolloin laskuvarjot avautuvat. T\u00e4ll\u00f6in Huygensin kamerat ja muut mittalaitteet ottavat n\u00e4ytteit\u00e4 ilmakeh\u00e4st\u00e4 ja kuvaavat alla avautuvaa vierasta maisemaa.<\/p>\n<p>Kaksi tuntia my\u00f6hemmin Euroopan rohkea tutkimusmatkailija laskeutuu Titanin tuntemattomalle pinnalle.<\/p>","protected":false},"excerpt":{"rendered":"<p>One of the most exciting chapters in the history of space exploration is about to begin. After a 3 billion km trek that lasted more than seven years, ESA\u2019s Huygens [&hellip;]<\/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\/10\/huygens_probe_descending_through_titan_s_atmosphere4\/18244995-2-eng-GB\/Huygens_probe_descending_through_Titan_s_atmosphere.jpg","esa_banner_description":"Huygens probe descending through Titan's atmosphere","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2004\/10\/Huygens_probe_descending_through_Titan_s_atmosphere4","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-965","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\/965","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=965"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/965\/revisions"}],"predecessor-version":[{"id":4758,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/965\/revisions\/4758"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/media?parent=965"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/categories?post=965"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/tags?post=965"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/panel?post=965"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/language?post=965"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/age?post=965"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/duration?post=965"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/resource_type?post=965"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/audience?post=965"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/wf_post_folders?post=965"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}