{"id":458,"date":"2017-01-16T08:09:00","date_gmt":"2017-01-16T07:09:00","guid":{"rendered":"https:\/\/kids.esa.int\/bepicolombo_esa_s_mission_to_mercury\/"},"modified":"2026-10-08T00:28:27","modified_gmt":"2026-10-07T22:28:27","slug":"bepicolombo_esa_s_mission_to_mercury","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fi\/bepicolombo_esa_s_mission_to_mercury\/","title":{"rendered":"BepiColombo: ESA:n Merkurius-luotain"},"content":{"rendered":"<div class=\"lede\">\n<p>Euroopan avaruusj\u00e4rjest\u00f6n avaruusluotaimet ovat k\u00e4yneet monissa aurinkokuntamme planeetoissa, mutta toistaiseksi yksik\u00e4\u00e4n niist\u00e4 ei ole k\u00e4ynyt Merkuriuksella. Tilanne muuttuu pian BepiColombo-lennon ansiosta!<\/p>\n<\/div>\n<p>BepiColombo on nimetty Giuseppe (lyhennettyn\u00e4 Bepi) Colombon mukaan, joka oli tutkija, joka tutki Merkuriuksen kiertorataa ja auttoi luomaan perustan planeettojen v\u00e4liselle matkustamiselle. BepiColombo, jonka laukaisu on suunniteltu vuodelle 2018, matkustaa avaruudessa yli seitsem\u00e4n vuotta ennen kuin se saavuttaa vaikeasti tavoitettavan Merkuriuksen!<\/p>\n<p>Saapuessaan BepiColombo hajoaa kahdeksi alukseksi. Ensimm\u00e4inen niist\u00e4 on nimelt\u00e4\u00e4n Mercury Planetary Orbiter. T\u00e4m\u00e4 ESA:n luotain tutkii Merkuriuksen pintaa ja k\u00e4ytt\u00e4\u00e4 huipputeknologisia laitteita planeetan sis\u00e4osan tutkimiseen. Toinen alus on nimelt\u00e4\u00e4n Mercury Magnetospheric Orbiter. Japanin avaruustutkimusj\u00e4rjest\u00f6n (JAXA) hallinnoima alus tutkii Merkuriuksen ymp\u00e4rill\u00e4 olevaa magneettikentt\u00e4\u00e4.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"2000\" data-credit=\"ESA - image by C.Carreau\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2007\/02\/BepiColombo_s_planetary_and_magnetospheric_orbiters_at_Mercury2\" 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\/2007\/02\/bepicolombo_s_planetary_and_magnetospheric_orbiters_at_mercury2\/17908420-2-eng-GB\/BepiColombo_s_planetary_and_magnetospheric_orbiters_at_Mercury.jpg\" alt=\"BepiColombo\u2019s planetary and magnetospheric orbiters at Mercury\"><figcaption>BepiColombon planeetta- ja magnetosf\u00e4\u00e4rikiertolaitteet Merkuriuksella<\/figcaption><\/figure>\n<p>Avaruusaluksen ohjaaminen Merkuriuksen l\u00e4heisyydess\u00e4 on uskomattoman vaikeaa! BepiColombo-luotaimet joutuvat alttiiksi auringon s\u00e4teilylle, joka on kymmenen kertaa voimakkaampaa kuin Maan l\u00e4heisyydess\u00e4. Lis\u00e4ksi Merkuriuksen polttava pinta voi l\u00e4mmet\u00e4 jopa 470 \u00b0C:een, mik\u00e4 on tarpeeksi kuumaa heijastamaan l\u00e4mp\u00f6\u00e4 kiertoradalla oleviin luotaimiin. Ne on suojattava, muuten ne saattavat sulaa!<\/p>\n<p>Riskit ovat kuitenkin ottamisen arvoisia, sill\u00e4 BepiColombo auttaa selvitt\u00e4m\u00e4\u00e4n monia Merkuriuksen mysteerej\u00e4. Miksi planeetta on paljon tihe\u00e4mpi kuin muut aurinkokuntamme planeetat? Onko sen ydin nestem\u00e4inen vai kiinte\u00e4? Miksi sill\u00e4 on magneettikentt\u00e4? Onko syviss\u00e4 kraattereissa piilossa vesij\u00e4\u00e4t\u00e4? BepiColombo tutkii kaikkia n\u00e4it\u00e4 kysymyksi\u00e4 ja paljon muuta!<\/p>\n<p><b>Mielenkiintoinen fakta:<\/b> Merkurius on aurinkokunnan sis\u00e4osan v\u00e4hiten tutkittu planeetta. Kun BepiColombo saapuu sinne vuoden 2025 lopulla, se on vasta toinen avaruusalus koko planeettojen tutkimuksen historiassa, joka kiert\u00e4\u00e4 Merkuriusta!<\/p>","protected":false},"excerpt":{"rendered":"<p>European Space Agency space probes have visited many worlds in our Solar System, but so far none have been to the planet Mercury. That will change soon thanks to the [&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\/2017\/01\/bepicolombo\/17870634-2-eng-GB\/BepiColombo.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\/2017\/01\/BepiColombo","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-458","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\/458","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=458"}],"version-history":[{"count":5,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/458\/revisions"}],"predecessor-version":[{"id":4492,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/458\/revisions\/4492"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/media?parent=458"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/categories?post=458"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/tags?post=458"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/panel?post=458"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/language?post=458"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/age?post=458"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/duration?post=458"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/resource_type?post=458"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/audience?post=458"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/wf_post_folders?post=458"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}