{"id":826,"date":"2004-12-08T16:30:00","date_gmt":"2004-12-08T15:30:00","guid":{"rendered":"https:\/\/kids.esa.int\/the_shooting_gallery_in_space\/"},"modified":"2026-10-08T00:32:43","modified_gmt":"2026-10-07T22:32:43","slug":"the_shooting_gallery_in_space","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fi\/the_shooting_gallery_in_space\/","title":{"rendered":"Ammuntarata avaruudessa"},"content":{"rendered":"<div class=\"lede\">\n<p>Maaliskuussa 2002 Hubble-avaruusteleskoopin aurinkopaneelit tuotiin takaisin Maahan. Kahdeksan avaruudessa vietetyn vuoden j\u00e4lkeen ESA:n toimittamat paneelit olivat t\u00e4ynn\u00e4 jopa 8 mm halkaisijaltaan olevia t\u00f6rm\u00e4yskraattereita.<\/p>\n<\/div>\n<p>Kraatterit syntyiv\u00e4t nopeasti liikkuvien avaruusromun kappaleiden vaikutuksesta. Kun ne liikkuvat luotia nopeammin, jopa pieni maalihiukkanen voi vahingoittaa avaruusalusta vakavasti. Vuoden 2003 lopussa seurannassa oli noin 10 000 romukappaletta. Niihin kuului k\u00e4yt\u00f6st\u00e4 poistettuja avaruusaluksia, vanhoja rakettivaiheita ja muutamia avaruusk\u00e4velyjen aikana kadonneita ty\u00f6kaluja.<\/p>\n<p>Monet muut esineet ovat liian pieni\u00e4, jotta ne voitaisiin rekister\u00f6id\u00e4. Halkaisijaltaan 1\u201310 cm:n kokoisia esineit\u00e4 saattaa olla puoli miljoonaa \u2013 mutta tarkkaa lukum\u00e4\u00e4r\u00e4\u00e4 kukaan ei tied\u00e4. ESA pyrkii ratkaisemaan avaruusromuongelman monin eri tavoin. Kansainv\u00e4lisen avaruusaseman Columbus-laboratorio suojataan erityisell\u00e4 suojauksella.<\/p>\n<p>Saksassa ja Alankomaissa toimivat ESA:n tutkijat yll\u00e4pit\u00e4v\u00e4t luetteloa kaikista tunnetuista Maan kiertoradalla olevista kohteista. He k\u00e4ytt\u00e4v\u00e4t n\u00e4it\u00e4 tietoja avaruusromun tutkimiseen ja mahdollisten t\u00f6rm\u00e4ysten ennakkovaroitusten antamiseen.<\/p>\n<p>Tietoja avaruusromusta saadaan Saksassa sijaitsevasta tutkasta sek\u00e4 Espanjan Teneriffalla sijaitsevasta ESA:n teleskoopista. ESA pyrkii my\u00f6s solmimaan kansainv\u00e4lisi\u00e4 sopimuksia avaruusromun v\u00e4hent\u00e4miseksi ja avaruuslentojen turvallisuuden parantamiseksi.<\/p>","protected":false},"excerpt":{"rendered":"<p>In March 2002, the Hubble Space Telescope\u2019s solar arrays were brought back to Earth. After eight years in space, the ESA-supplied panels were peppered with impact craters up to 8 [&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\/2004\/12\/space_debris2\/17868672-2-eng-GB\/Space_debris.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\/2004\/12\/Space_debris2","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":[10,65,40],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-826","post","type-post","status-publish","format-standard","hentry","category-learn","category-mission-control","category-technology"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/826","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=826"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/826\/revisions"}],"predecessor-version":[{"id":1969,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/826\/revisions\/1969"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/media?parent=826"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/categories?post=826"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/tags?post=826"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/panel?post=826"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/language?post=826"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/age?post=826"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/duration?post=826"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/resource_type?post=826"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/audience?post=826"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/wf_post_folders?post=826"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}