{"id":51,"date":"2011-04-05T08:47:00","date_gmt":"2011-04-05T06:47:00","guid":{"rendered":"https:\/\/kids.esa.int\/weightless_science\/"},"modified":"2026-10-08T00:23:34","modified_gmt":"2026-10-07T22:23:34","slug":"weightless_science","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fi\/weightless_science\/","title":{"rendered":"Painoton tiede"},"content":{"rendered":"<div class=\"lede\">\n<p>Astronautin ty\u00f6n keskeinen osa on tutkia, miten asiat toimivat painovoimattomassa tilassa. Jo yli 20 vuoden ajan Kansainv\u00e4lisell\u00e4 avaruusasemalla (ISS) toimivat astronautit ovat tehneet h\u00e4mm\u00e4stytt\u00e4vi\u00e4 l\u00f6yt\u00f6j\u00e4, jotka auttavat meit\u00e4 ymm\u00e4rt\u00e4m\u00e4\u00e4n tiedett\u00e4 ja el\u00e4m\u00e4\u00e4 sek\u00e4 Maassa ett\u00e4 avaruudessa.<\/p>\n<\/div>\n<p>\u201cOlemme t\u00e4\u00e4ll\u00e4 avaruudessa, koska haluamme tehd\u00e4 paljon kokeita, painottomuuskokeita. Fysiikassa, kemiassa ja l\u00e4\u00e4ketieteess\u00e4 on paljon asioita, joita voimme oppia olemalla t\u00e4\u00e4ll\u00e4 painottomuudessa ja tekem\u00e4ll\u00e4 t\u00e4t\u00e4 tutkimusta.\u201d sanoi ESA:n astronautti ja tutkija Matthias Maurer. \u201cKuka tahansa ymp\u00e4ri maailmaa voi ehdottaa tieteellisi\u00e4 tavoitteita t\u00e4lle avaruusasemalle\u2026 jos teemme yhteisty\u00f6t\u00e4, voimme saavuttaa todella paljon.\u201d.<\/p>\n<p>Yksi mielenkiintoisimmista tutkimuskohteista on se, miten kehomme sopeutuu painottomuuden ainutlaatuiseen maailmaan. T\u00e4m\u00e4 auttaa meit\u00e4 paitsi ymm\u00e4rt\u00e4m\u00e4\u00e4n paremmin ihmisen biologiaa, my\u00f6s avaa tien tuleville tutkimusmatkoille Kuuhun tai Marsiin.<\/p>\n<p>Tutkijat haluavat saada tietoa miehist\u00f6n terveydentilasta kaikilta osin. Ihmiset seuraavat, mit\u00e4 ruokaa he sy\u00f6v\u00e4t ja miten ruokavalio vaikuttaa heihin. T\u00e4m\u00e4 tarkoittaa veri-, virtsa- ja hiusn\u00e4ytteiden ottamista, niiden s\u00e4ilytt\u00e4mist\u00e4 pakastimessa ja l\u00e4hett\u00e4mist\u00e4 takaisin Maahan tutkittavaksi. Astronautit k\u00e4ytt\u00e4v\u00e4t kahta erityist\u00e4 kelloa, jotka seuraavat heid\u00e4n liikkeit\u00e4\u00e4n. Erilaiset kehon skannaukset kuuluvat my\u00f6s heid\u00e4n p\u00e4ivitt\u00e4iseen aikatauluunsa.<\/p>\n<p>N\u00e4m\u00e4 tutkimukset voivat auttaa suoraan sek\u00e4 maapallon asukkaita ett\u00e4 pitkill\u00e4 avaruusmatkoilla olevia astronautteja. Ne tuovat toivoa ihmisille, jotka k\u00e4rsiv\u00e4t luiden heikkenemisest\u00e4, syd\u00e4n- ja keuhkosairauksista sek\u00e4 ik\u00e4\u00e4ntymiseen liittyvist\u00e4 ongelmista.<\/p>\n<p>Yksi n\u00e4ist\u00e4 hankkeista, Orbital Architecture Study, tutkii, miten avaruusaseman suunnittelu voi vaikuttaa astronauttien ajatteluun ja tunteisiin. T\u00e4m\u00e4n avulla voimme selvitt\u00e4\u00e4, miten voimme auttaa ihmisi\u00e4 tuntemaan olonsa rauhallisemmaksi ja keskittym\u00e4\u00e4n paremmin sek\u00e4 avaruudessa ett\u00e4 maapallolla.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"5568\" data-credit=\"Axiom Space\/Michael L\u00f3pez Alegr\u00eda\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2024\/02\/ESA_project_astronaut_Marcus_Wandt_wears_a_cap_with_sensors_to_record_his_brain_activity\" 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\/2024\/02\/esa_project_astronaut_marcus_wandt_wears_a_cap_with_sensors_to_record_his_brain_activity\/25465169-2-eng-GB\/ESA_project_astronaut_Marcus_Wandt_wears_a_cap_with_sensors_to_record_his_brain_activity.jpg\" alt=\"ESA project astronaut Marcus Wandt wears a cap with sensors to record his brain activity in the Orbital Architecture study\"><figcaption>ESA:n projektin astronautti Marcus Wandt k\u00e4ytt\u00e4\u00e4 Orbital Architecture -tutkimuksessa lippalakkia, jossa on antureita h\u00e4nen aivotoimintansa mittaamiseksi<\/figcaption><\/figure>","protected":false},"excerpt":{"rendered":"<p>A key part of an astronaut\u2019s job is to study how things work without gravity. For over 20 years, astronauts on the International Space Station (ISS) have made amazing discoveries [&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\/2010\/12\/strange_bike2\/17886100-2-eng-GB\/Strange_bike.jpg","esa_banner_description":"","esa_banner_credit":"ESA\/NASA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2010\/12\/Strange_bike2","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":[28,10,13],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-51","post","type-post","status-publish","format-standard","hentry","category-astronauts","category-learn","category-life-in-space"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/51","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=51"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/51\/revisions"}],"predecessor-version":[{"id":4275,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/51\/revisions\/4275"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/media?parent=51"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/categories?post=51"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/tags?post=51"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/panel?post=51"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/language?post=51"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/age?post=51"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/duration?post=51"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/resource_type?post=51"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/audience?post=51"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/wf_post_folders?post=51"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}