{"id":1108,"date":"2004-11-16T08:23:00","date_gmt":"2004-11-16T07:23:00","guid":{"rendered":"https:\/\/kids.esa.int\/earth_traveller_in_space\/"},"modified":"2026-10-08T00:36:05","modified_gmt":"2026-10-07T22:36:05","slug":"earth_traveller_in_space","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fi\/earth_traveller_in_space\/","title":{"rendered":"Maa \u2013 avaruuden matkustaja"},"content":{"rendered":"<div class=\"lede\">\n<p>Jokainen maapallolla el\u00e4v\u00e4 ihminen on avaruusmatkailija. Ensinn\u00e4kin Maa kiit\u00e4\u00e4 Auringon ymp\u00e4ri 30 km\/s:n nopeudella \u2013 45 kertaa nopeammin kuin Concorde. Yhden kierroksen Auringon ymp\u00e4ri suorittaminen kest\u00e4\u00e4 365 p\u00e4iv\u00e4\u00e4 (yhden vuoden).<\/p>\n<\/div>\n<p>Se py\u00f6rii my\u00f6s eritt\u00e4in nopeasti, kuin toiselle puolelle kallistunut hyrr\u00e4. P\u00e4iv\u00e4ntasaajalla asuvat ihmiset liikkuvat l\u00e4nnest\u00e4 it\u00e4\u00e4n 1 670 km:n tuntinopeudella. (Nopeus on pienempi napojen l\u00e4hell\u00e4 asuville ihmisille.) Koska kaikki ymp\u00e4rill\u00e4mme liikkuu samalla tavalla, emme yleens\u00e4 huomaa t\u00e4t\u00e4 suurta nopeutta. Selkein tapa havaita t\u00e4m\u00e4 on tarkkailla aurinkoa, kuuta ja t\u00e4hti\u00e4, kun ne n\u00e4ytt\u00e4v\u00e4t liikkuvan taivaalla.<\/p>\n<p>Pohjois- ja etel\u00e4navan yhdist\u00e4v\u00e4n akselin kallistuma aiheuttaa sen, ett\u00e4 maapallolla on vuodenaikoja. Kun pohjoisnapa osoittaa kohti aurinkoa, pohjoisissa maissa on kes\u00e4. Kun pohjoisnapa osoittaa poisp\u00e4in auringosta, n\u00e4iss\u00e4 maissa on talvi. Vuodenajat ovat t\u00e4ysin p\u00e4invastaiset p\u00e4iv\u00e4ntasaajan etel\u00e4puolella.<\/p>","protected":false},"excerpt":{"rendered":"<p>Everyone on Earth is a traveller through space. First, the Earth zooms around the Sun at a speed of 30 km\/s \u2013 45 times faster than Concorde. It takes 365 [&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\/2002\/07\/msg_views_one_quarter_of_earth2\/17865120-3-eng-GB\/MSG_views_one_quarter_of_Earth.jpg","esa_banner_description":"MSG views one quarter of Earth","esa_banner_credit":"EUMETSAT 2002","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2002\/07\/MSG_views_one_quarter_of_Earth2","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":[10,11,12],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1108","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-planets-and-moons","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/1108","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=1108"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/1108\/revisions"}],"predecessor-version":[{"id":2251,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/1108\/revisions\/2251"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/media?parent=1108"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/categories?post=1108"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/tags?post=1108"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/panel?post=1108"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/language?post=1108"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/age?post=1108"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/duration?post=1108"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/resource_type?post=1108"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/audience?post=1108"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/wf_post_folders?post=1108"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}