{"id":923,"date":"2004-11-16T10:04:00","date_gmt":"2004-11-16T09:04:00","guid":{"rendered":"https:\/\/kids.esa.int\/exploring_asteroids\/"},"modified":"2026-10-08T00:33:49","modified_gmt":"2026-10-07T22:33:49","slug":"exploring_asteroids","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/et\/exploring_asteroids\/","title":{"rendered":"Asteroidide uurimine"},"content":{"rendered":"
\n

Enamik asteroide on nii v\u00e4ikesed ja asuvad nii kaugel, et me n\u00e4eme neid vaid pisikeste valguspunktidena. Neid avastatakse selle j\u00e4rgi, kuidas nad liiguvad \u00f6\u00f6taeva \u2018p\u00fcsit\u00e4htede\u2019 ees. Suurte teleskoopide abil uurime nende peegeldatavat valgust ja saame neist rohkem teada.<\/p>\n<\/div>\n

Siiski ei suuda isegi Hubble\u2019i kosmoseteleskoop nende kohta palju avaldada. \u00dcks huvitavamaid asteroide on metallirikas Vesta. Hubble\u2019i piltidel on n\u00e4ha \u00fcsna \u00fcmmargune taevakeha, millel on suur kokkup\u00f5rkekraater.<\/p>\n

M\u00f5ningaid Maa l\u00e4hedal liikuvaid asteroide on uuritud radari abil. Radari kajad v\u00f5etakse vastu suurte raadioteleskoopidega ning nende abil selgitatakse v\u00e4lja asteroidide kuju ja suurus.<\/p>\n

M\u00f5nda asteroidi on kosmoselaevade abil p\u00f5hjalikumalt uuritud. Piltidel on n\u00e4ha objekte, millel on palju kraatreid, mis n\u00e4itab, et neid on miljardite aastate jooksul tabanud arvukad kokkup\u00f5rked. Aastal 2000 sai NEAR Shoemaker esimeseks kosmoselaevaks, mis j\u00f5udis asteroidi orbiidile. Kosmoselaev l\u00f5petas oma tegevuse ajaloolise maandumisega Erosel, mis on \u00fcks suurimaid Maa-l\u00e4hedasi asteroide.<\/p>\n

ESA kosmoselaev \u201eRosetta\u201c on teel komeedi poole lennanud m\u00f6\u00f6da ka kahest peav\u00f6\u00f6 asteroidi \u2013 Steinsist ja Lutetia\u2019st. L\u00e4bim\u00f5\u00f5duga umbes 130 km oli Lutetia suurim asteroid, mida kosmoselaev seni on k\u00fclastanud. ESA uurib ka v\u00f5imalusi, kuidas suunata Maale suunduvat asteroidi k\u00f5rvale oma kursilt.<\/p>","protected":false},"excerpt":{"rendered":"

Most asteroids are so small and so far away that we can only see them as tiny points of light. They are found through their movement in front of the […]<\/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\/2003\/04\/asteroids_come_in_many_shapes_and_sizes2\/17886580-2-eng-GB\/Asteroids_come_in_many_shapes_and_sizes.jpg","esa_banner_description":"Asteroids come in many shapes and sizes","esa_banner_credit":"courtesy Observatoire de Paris","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2003\/04\/Asteroids_come_in_many_shapes_and_sizes2","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-923","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\/et\/wp-json\/wp\/v2\/posts\/923","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/comments?post=923"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/923\/revisions"}],"predecessor-version":[{"id":2066,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/923\/revisions\/2066"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/media?parent=923"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/categories?post=923"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/tags?post=923"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/panel?post=923"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/language?post=923"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/age?post=923"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/duration?post=923"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/resource_type?post=923"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/audience?post=923"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/wf_post_folders?post=923"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}