{"id":516,"date":"2015-12-03T09:32:00","date_gmt":"2015-12-03T08:32:00","guid":{"rendered":"https:\/\/kids.esa.int\/lisa_pathfinder_mission_launched\/"},"modified":"2026-10-08T00:29:07","modified_gmt":"2026-10-07T22:29:07","slug":"lisa_pathfinder_mission_launched","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fi\/lisa_pathfinder_mission_launched\/","title":{"rendered":"LISA Pathfinder -luotain laukaistiin!"},"content":{"rendered":"<div class=\"lede\">\n<p>ESAn huipputeknologinen LISA Pathfinder -lento l\u00e4hti t\u00e4n\u00e4\u00e4n aikaisin aamulla Euroopan avaruuskeskuksesta Kouroussa, Ranskan Guayanassa. LISA Pathfinder laukaistiin avaruuteen tehokkaan Vega-raketin avulla, ja lento on saanut erinomaisen alun!<\/p>\n<\/div>\n<p>LISA Pathfinder tutkii voimaa, joka est\u00e4\u00e4 meit\u00e4 leijumasta avaruuteen: painovoimaa. 100 vuotta sitten kuuluisa tiedemies Albert Einstein laati yleisen suhteellisuusteoriansa, joka on paras yrityksemme ymm\u00e4rt\u00e4\u00e4 painovoiman toimintaa. LISA Pathfinder testaa t\u00e4t\u00e4 teoriaa k\u00e4ytt\u00e4m\u00e4ll\u00e4 uskomattoman herkki\u00e4 mittalaitteita, joilla havaitaan avaruuden pienimpi\u00e4kin aaltoiluja.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1280\" data-credit=\"ESA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2015\/12\/Artist_impression_of_LISA_Pathfinder\" 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\/2015\/12\/artist_impression_of_lisa_pathfinder\/17880328-2-eng-GB\/Artist_impression_of_LISA_Pathfinder.jpg\" alt=\"\"><\/figure>\n<p>LISA Pathfinder -luotaimessa on kaksi identtist\u00e4 kulta-platinaa valmistettua kuutiota. Ne leijuvat avaruusaluksen sis\u00e4ll\u00e4 koskettamatta sit\u00e4. Kuutioiden v\u00e4lill\u00e4 heijastuvat laserit mittaavat niiden tarkat sijainnit miljardisosan millimetrin tarkkuudella! T\u00e4m\u00e4n avulla tutkijat voivat selvitt\u00e4\u00e4, miten painovoima vaikuttaa niihin.<\/p>\n<p>Vaikka avaruusluotain on nyt laukaistu, kest\u00e4\u00e4 viel\u00e4 10 viikkoa, ennen kuin se saavuttaa ihanteellisen sijaintinsa. Sen j\u00e4lkeen, kun viimeiset tarkastukset on suoritettu, se aloittaa kuuden kuukauden mittaisen, uskomattoman tarkan havainnointijakson, joka saattaa muuttaa k\u00e4sityst\u00e4mme painovoimasta.<\/p>\n<p>ESAn tutkijat suunnittelevat tulevaisuutta ja toivovat voivansa k\u00e4ynnist\u00e4\u00e4 vuonna 2034 jatkohankkeen, nimelt\u00e4\u00e4n eLISA. Se jatkaa LISA Pathfinderin teht\u00e4v\u00e4\u00e4 ja auttaa meit\u00e4 ymm\u00e4rt\u00e4m\u00e4\u00e4n painovoimaa paremmin kuin koskaan aiemmin.<\/p>\n<p><b>Mielenkiintoinen fakta:<\/b> LISA Pathfinderissa on pienet ohjausmoottorit, jotka voivat laukaista 10 kertaa sekunnissa est\u00e4\u00e4kseen avaruusaluksen koskettamasta kulta-platina-kuutioita.<\/p>","protected":false},"excerpt":{"rendered":"<p>ESA\u2019s high-tech LISA Pathfinder mission lifted off earlier today from Europe\u2019s spaceport in Kourou, French Guiana. Using a powerful Vega rocket to blast LISA Pathfinder into space, the mission has [&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\/2015\/12\/liftoff_of_vega_carrying_lisa_pathfinder\/17885730-2-eng-GB\/Liftoff_of_Vega_carrying_LISA_Pathfinder.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\/12\/Liftoff_of_Vega_carrying_LISA_Pathfinder","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-516","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\/516","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=516"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/516\/revisions"}],"predecessor-version":[{"id":4524,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/516\/revisions\/4524"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/media?parent=516"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/categories?post=516"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/tags?post=516"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/panel?post=516"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/language?post=516"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/age?post=516"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/duration?post=516"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/resource_type?post=516"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/audience?post=516"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/wf_post_folders?post=516"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}