{"id":529,"date":"2015-08-10T08:48:00","date_gmt":"2015-08-10T06:48:00","guid":{"rendered":"https:\/\/kids.esa.int\/preparations_underway_for_esa_s_juice_mission_to_jupiter\/"},"modified":"2026-10-08T00:29:17","modified_gmt":"2026-10-07T22:29:17","slug":"preparations_underway_for_esa_s_juice_mission_to_jupiter","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fi\/preparations_underway_for_esa_s_juice_mission_to_jupiter\/","title":{"rendered":"Valmistelut ovat k\u00e4ynniss\u00e4 ESA:n JUICE-luotainmatkaa Jupiterille varten"},"content":{"rendered":"
\n

Jupiter on aurinkokuntamme suurin planeetta; se on yli 1000 kertaa suurempi kuin Maa! Yll\u00e4tt\u00e4v\u00e4\u00e4 kyll\u00e4, emme viel\u00e4k\u00e4\u00e4n tied\u00e4 paljoakaan t\u00e4st\u00e4 j\u00e4ttil\u00e4isplaneetasta. Mutta tilanne on muuttumassa. ESAn seuraava suuri tiedemissio, JUICE, vie meid\u00e4t matkalle aurinkokunnan halki tutkimaan Jupiteria ja joitakin sen suuria, j\u00e4isi\u00e4 kuita.<\/p>\n<\/div>\n

Viime kuussa ESA teki eritt\u00e4in t\u00e4rke\u00e4n p\u00e4\u00e4t\u00f6ksen: se valitsi Airbus Defence & Space -nimisen yrityksen suunnittelemaan ja rakentamaan JUICE-luotaimen sek\u00e4 saattamaan sen laukaisukuntoon vuonna 2022.<\/p>\n

JUICE-luotaimelta kest\u00e4\u00e4 kahdeksan vuotta p\u00e4\u00e4st\u00e4 Jupiterille! Perille p\u00e4\u00e4sty\u00e4\u00e4n se viett\u00e4\u00e4 seuraavat kolme ja puoli vuotta kiert\u00e4en j\u00e4ttil\u00e4isplaneettaa ja tutkiessaan sen myrskyist\u00e4 ilmakeh\u00e4\u00e4 ja salaper\u00e4isi\u00e4 tummia renkaita.<\/p>\n

Avaruusluotain ei kuitenkaan keskity pelk\u00e4st\u00e4\u00e4n Jupiteriin. Se tutkii my\u00f6s kolmea planeetan kokoista, j\u00e4ist\u00e4 kuuta: Callistoa, Europaa ja Ganymedesia. T\u00e4htitieteilij\u00e4t uskovat, ett\u00e4 jokaisen n\u00e4ist\u00e4 kaukaisista maailmoista j\u00e4isen pinnan alla saattaa piill\u00e4 valtavia vesimeri\u00e4. T\u00e4m\u00e4 on eritt\u00e4in kiehtovaa, sill\u00e4 vesi on el\u00e4m\u00e4n olemassaolon kannalta t\u00e4rke\u00e4\u00e4!<\/p>\n

Avaruusluotain lent\u00e4\u00e4 sen j\u00e4lkeen Europan ja Calliston ohi ennen kuin se p\u00e4\u00e4tt\u00e4\u00e4 teht\u00e4v\u00e4ns\u00e4 kahdeksan kuukauden mittaisella kiertomatkalla Ganymedella. Ganymedes on aurinkokuntamme suurin kuu (suurempi kuin Merkurius ja Pluto!) ja ainoa kuu, jolla tiedet\u00e4\u00e4n olevan magneettikentt\u00e4.<\/p>\n

JUICE-luotaimen ansiosta p\u00e4\u00e4semme paitsi tutustumaan paremmin suurimpaan naapuriimme, my\u00f6s ymm\u00e4rt\u00e4m\u00e4\u00e4n paremmin, miten planeetat yleens\u00e4 muodostuvat. Yksi mielenkiintoisimmista asioista, joita JUICE paljastaa meille, on kuitenkin se, onko el\u00e4m\u00e4\u00e4 todenn\u00e4k\u00f6isesti olemassa kaukaisilla, j\u00e4isill\u00e4 planeetoilla!<\/p>\n

Mielenkiintoinen fakta:<\/b> Mit\u00e4 JUICE tarkoittaa? JUICE on lyhenne sanoista JUpiter ICy moons Explorer!<\/p>","protected":false},"excerpt":{"rendered":"

Jupiter is the largest planet in our Solar System; it\u2019s more than 1000 times bigger than Earth! Yet surprisingly, there\u2019s still a lot we don\u2019t know about the giant planet. […]<\/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\/2015\/08\/juice_artist_impression\/18248474-2-eng-GB\/JUICE_artist_impression.jpg","esa_banner_description":"","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2015\/08\/JUICE_artist_impression","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":[26],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-529","post","type-post","status-publish","format-standard","hentry","category-news"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/529","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=529"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/529\/revisions"}],"predecessor-version":[{"id":1672,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/529\/revisions\/1672"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/media?parent=529"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/categories?post=529"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/tags?post=529"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/panel?post=529"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/language?post=529"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/age?post=529"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/duration?post=529"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/resource_type?post=529"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/audience?post=529"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/wf_post_folders?post=529"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}