{"id":1136,"date":"2004-11-16T10:20:00","date_gmt":"2004-11-16T09:20:00","guid":{"rendered":"https:\/\/kids.esa.int\/meteorites\/"},"modified":"2026-10-08T00:36:25","modified_gmt":"2026-10-07T22:36:25","slug":"meteorites","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fi\/meteorites\/","title":{"rendered":"Meteoriitit"},"content":{"rendered":"<div class=\"lede\">\n<p>Joka p\u00e4iv\u00e4 noin 50 tonnia avaruudesta per\u00e4isin olevaa kivimateriaalia putoaa maan pinnalle. N\u00e4it\u00e4 kivi\u00e4 kutsutaan meteoriiteiksi.<\/p>\n<\/div>\n<p>L\u00e4hes kaikki meteoriitit ovat per\u00e4isin Jupiterin ja Marsin v\u00e4lisest\u00e4 p\u00e4\u00e4asteroidivy\u00f6hykkeest\u00e4. Vaikka useimpia asteroideja erottaa toisistaan tuhansia kilometrej\u00e4 tyhj\u00e4\u00e4 avaruutta, t\u00f6rm\u00e4ykset ovat melko yleisi\u00e4.<\/p>\n<p>Joskus koko asteroidi voi hajota palasiksi. Useimmiten siit\u00e4 irtoaa vain muutama pieni pala. N\u00e4m\u00e4 palaset kulkevat avaruudessa miljoonia vuosia, kunnes planeetan painovoima vet\u00e4\u00e4 ne puoleensa.<\/p>\n<p>Jos ne selvi\u00e4v\u00e4t tulikuumasta matkasta ilmakeh\u00e4n l\u00e4pi ja laskeutuvat planeetan pinnalle, niist\u00e4 tulee meteoriitteja. Maapallolta on l\u00f6ydetty useita tuhansia meteoriitteja.<\/p>\n<figure class=\"wp-block-image size-natural\" data-width=\"400\" data-credit=\"NASA\/JSC\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2001\/05\/Mars_meteorite_ALH_840012\" data-licence=\"No ESA licences available\" 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\/2001\/05\/mars_meteorite_alh_840012\/17864380-3-eng-GB\/Mars_meteorite_ALH_84001.jpg\" alt=\"Mars meteorite ALH 84001\"><figcaption>Marsin meteoriitti ALH 84001<\/figcaption><\/figure>\n<p>N\u00e4it\u00e4 kivi\u00e4 tutkimalla tiedemiehet ovat saaneet paljon tietoa aurinkokunnan i\u00e4st\u00e4 ja syntyhistoriasta. Joidenkin meteoriittien on osoitettu olevan per\u00e4isin Kuusta tai Marsista.<\/p>\n<p>Etel\u00e4-Afrikasta l\u00f6ydetty Hoba-rautameteoriitti on maapallon suurin. Sen halkaisija on 10 metri\u00e4 ja paino 60 tonnia.<\/p>\n<p>Kenenk\u00e4\u00e4n ei tiedet\u00e4 kuolleen putoavan meteoriitin seurauksena, mutta useat ihmiset ovat saaneet mustelmia. Meteoriittien on my\u00f6s tiedetty tappaneen lehm\u00e4n sek\u00e4 vahingoittaneen taloja ja autoja.<\/p>","protected":false},"excerpt":{"rendered":"<p>Every day about 50 tonnes of rocky material from space lands on the Earth&#8217;s surface. These rocks are called meteorites. Nearly all meteorites come from the main asteroid belt between [&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\/05\/meteor_crater_in_arizona3\/17895645-2-eng-GB\/Meteor_Crater_in_Arizona.jpg","esa_banner_description":"Meteor Crater in Arizona","esa_banner_credit":"David Roddy, USGS","esa_banner_licence":"No ESA licences available","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2004\/05\/Meteor_Crater_in_Arizona3","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":[46,10,11],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1136","post","type-post","status-publish","format-standard","hentry","category-comets-and-meteors","category-learn","category-our-universe","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/1136","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=1136"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/1136\/revisions"}],"predecessor-version":[{"id":4866,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/1136\/revisions\/4866"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/media?parent=1136"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/categories?post=1136"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/tags?post=1136"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/panel?post=1136"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/language?post=1136"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/age?post=1136"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/duration?post=1136"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/resource_type?post=1136"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/audience?post=1136"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/wf_post_folders?post=1136"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}