{"id":1140,"date":"2004-11-19T09:43:00","date_gmt":"2004-11-19T08:43:00","guid":{"rendered":"https:\/\/kids.esa.int\/sailing_through_space\/"},"modified":"2026-10-09T11:30:53","modified_gmt":"2026-10-09T09:30:53","slug":"sailing_through_space","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/et\/sailing_through_space\/","title":{"rendered":"Kosmoses seilamine"},"content":{"rendered":"
\n

Siiani on peaaegu k\u00f5ikidel kosmosemissioonidel kasutatud keemilisel k\u00fctusel t\u00f6\u00f6tavaid raketimootoreid. Kahjuks ei ole need eriti t\u00f5husad. N\u00e4iteks moodustas k\u00fctus \u00fcle poole ESA kosmoselaeva \u201eRosetta\u201d stardikaalust.<\/p>\n<\/div>\n

ESA uurib praegu v\u00f5imalusi, kuidas v\u00e4hendada kaasasveetava k\u00fctuse kogust. \u00dcks idee on ioonmootor, mis kasutab elektrilist \u2018p\u00fcssi\u2019, et tulistada gaasi kosmosesse.<\/p>\n

Kuigi mootori ettepoole suunatud t\u00f5ukej\u00f5ud on v\u00e4ga v\u00e4ike, suureneb kiirus j\u00e4rk-j\u00e4rgult. L\u00f5puks v\u00f5imaldab see kosmoselaeval liikuda v\u00e4ga kiiresti.<\/p>\n

\"Artist's
SMART-1 kunstnikupilt<\/figcaption><\/figure>\n

SMART-1 katsetas edukalt ioonmootorit teel Kuule. Mootor tekitas iga kasutatud k\u00fctusekilo kohta 10 korda suurema t\u00f5ukej\u00f5u kui tavaline raketimootor.<\/p>\n

ESA uurib ka kosmoselaevu, mis kasutavad mootorite asemel p\u00e4ikesepurje. Suurele, peeglilaadsele purjele langev p\u00e4ikesevalgus suudab kosmoselaeva teiste planeetide suunas liikuma panna. Mitme kuu m\u00f6\u00f6dudes v\u00f5iks selline kosmoselaev saavutada kiiruse 360 000 km\/h.<\/p>\n

Veel \u00fcks viis k\u00fctuse ja kaalu kokkuhoidmiseks on kiiruse v\u00e4hendamine, lennates l\u00e4bi planeedi \u00fclemise atmosf\u00e4\u00e4ri. ESA kavatseb ehitada kosmoselaeva, mis j\u00f5uab Marsi orbiidile just selle \u2018aerokaptuuri\u2019 meetodi abil.<\/p>","protected":false},"excerpt":{"rendered":"

Until now, nearly all space missions have used rocket motors that feed on chemical fuel. Unfortunately, these are not very efficient. For example, over half the launch weight of ESA’s […]<\/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\/close-up_view_of_smart-1_s_stationary_plasma_thruster2\/17900310-2-eng-GB\/Close-up_view_of_SMART-1_s_stationary_plasma_thruster.jpg","esa_banner_description":"Close-up view of SMART-1's stationary plasma thruster","esa_banner_credit":"ESA 2002. Illustration by Medialab.","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2003\/04\/Close-up_view_of_SMART-1_s_stationary_plasma_thruster2","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":[10,44,40],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1140","post","type-post","status-publish","format-standard","hentry","category-learn","category-spacecraft","category-technology","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/1140","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=1140"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/1140\/revisions"}],"predecessor-version":[{"id":4867,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/1140\/revisions\/4867"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/media?parent=1140"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/categories?post=1140"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/tags?post=1140"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/panel?post=1140"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/language?post=1140"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/age?post=1140"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/duration?post=1140"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/resource_type?post=1140"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/audience?post=1140"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/wf_post_folders?post=1140"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}