{"id":704,"date":"2012-10-15T08:03:00","date_gmt":"2012-10-15T06:03:00","guid":{"rendered":"https:\/\/kids.esa.int\/testing_mars_and_moon_soil_for_radiation_shelters\/"},"modified":"2026-10-08T00:31:19","modified_gmt":"2026-10-07T22:31:19","slug":"testing_mars_and_moon_soil_for_radiation_shelters","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fi\/testing_mars_and_moon_soil_for_radiation_shelters\/","title":{"rendered":"Marsin ja Kuun maaper\u00e4n testaaminen s\u00e4teilysuojien rakentamista varten"},"content":{"rendered":"<div class=\"lede\">\n<p>Yksi suurimmista uhkista astronauttien terveydelle on avaruuss\u00e4teily. Avaruudessa valon nopeudella liikkuvat energiset hiukkaset voivat aiheuttaa vakavia vaurioita kehon soluille, mik\u00e4 lis\u00e4\u00e4 huomattavasti sy\u00f6p\u00e4riski\u00e4. Selvitt\u00e4\u00e4kseen, miten miehist\u00f6n j\u00e4seni\u00e4 voidaan parhaiten suojella t\u00e4lt\u00e4 s\u00e4teilylt\u00e4, ESA tekee yhteisty\u00f6t\u00e4 saksalaisen tutkimuskeskuksen kanssa testatakseen erilaisia suojausmenetelmi\u00e4, mukaan lukien Kuun ja Marsin maaper\u00e4\u00e4.<\/p>\n<\/div>\n<p>Avaruus on t\u00e4ynn\u00e4 varautuneita hiukkasia, mink\u00e4 vuoksi astronautit luokitellaan virallisesti s\u00e4teilyty\u00f6ntekij\u00f6iksi. Osa hiukkasista on per\u00e4isin auringon voimakkaista, mutta lyhytaikaisista myrskyist\u00e4. Toiset, niin sanotut kosmiset s\u00e4teet, syntyv\u00e4t kaukaisissa galakseissa kuolevissa t\u00e4hdiss\u00e4.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1065\" data-credit=\"ESA\/NASA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2011\/03\/Steve_Bowen_and_Al_Drew_working_outside_the_ISS2\" 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\/2011\/03\/steve_bowen_and_al_drew_working_outside_the_iss2\/17893685-2-eng-GB\/Steve_Bowen_and_Al_Drew_working_outside_the_ISS.jpg\" alt=\"Steve Bowen and Al Drew working outside the ISS\"><figcaption>Steve Bowen ja Al Drew ty\u00f6skentelev\u00e4t ISS:n ulkopuolella<\/figcaption><\/figure>\n<p>T\u00e4ll\u00e4 hetkell\u00e4 avaruuss\u00e4teily ei ole kovin suuri ongelma, koska kansainv\u00e4linen avaruusasema kiert\u00e4\u00e4 maapallon magneettikent\u00e4n sis\u00e4ll\u00e4. T\u00e4m\u00e4 magneettikentt\u00e4 toimii suojana suurinta osaa avaruuss\u00e4teily\u00e4 vastaan. Kuuhun ja Marsiin matkustavat miehist\u00f6t ovat kuitenkin paljon alttiimpia korkeaenergiselle kosmisen s\u00e4teilylle, joten erityist\u00e4 suojausta tarvitaan.<\/p>\n<p>ESA:n tutkimusryhm\u00e4 k\u00e4ytt\u00e4\u00e4 Darmstadtissa, Saksassa sijaitsevaa GSI-hiukkaskiihdytint\u00e4 potentiaalisten suojamateriaalien testaamiseen. Testattavia materiaaleja ovat muun muassa alumiini, vesi, polyeteenimuovi, monikerroksiset rakenteet sek\u00e4 simuloidut kuu- ja Mars-materiaalit.<\/p>\n<p>Tihe\u00e4mpi ja paksumpi s\u00e4teilysuojaus ei aina ole parempi vaihtoehto. Metallisuojaukseen osuvat kosmiset s\u00e4teet voivat aiheuttaa toissijaisten hiukkasten sateita, jotka saattavat olla jopa haitallisempia. Yleisesti ottaen kevyemm\u00e4t materiaalit, kuten vesi ja muovi, tarjoavat paremman suojan. Er\u00e4\u00e4n brittil\u00e4isen yrityksen kehitt\u00e4m\u00e4t uudet, vetypitoiset materiaalit n\u00e4ytt\u00e4v\u00e4t toistaiseksi eritt\u00e4in lupaavilta.<\/p>","protected":false},"excerpt":{"rendered":"<p>One of the greatest threats to the health of astronauts is space radiation. Energetic particles travelling through space at close to the speed of light can cause major damage to [&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\/2012\/10\/future_deep_space_base2\/17882400-2-eng-GB\/Future_deep_space_base.png","esa_banner_description":"Future deep space base","esa_banner_credit":"NASA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2012\/10\/Future_deep_space_base2","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":[10,13,63],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-704","post","type-post","status-publish","format-standard","hentry","category-learn","category-life-in-space","category-living-in-space"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/704","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=704"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/704\/revisions"}],"predecessor-version":[{"id":4639,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/704\/revisions\/4639"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/media?parent=704"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/categories?post=704"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/tags?post=704"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/panel?post=704"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/language?post=704"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/age?post=704"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/duration?post=704"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/resource_type?post=704"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/audience?post=704"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/wf_post_folders?post=704"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}