{"id":1139,"date":"2004-11-19T09:40:00","date_gmt":"2004-11-19T08:40:00","guid":{"rendered":"https:\/\/kids.esa.int\/new_transport\/"},"modified":"2026-10-08T00:36:27","modified_gmt":"2026-10-07T22:36:27","slug":"new_transport","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/et\/new_transport\/","title":{"rendered":"Uus transport"},"content":{"rendered":"
\n

Kosmos on tohutu. Reis Kuule \u2013 meie kosmoses asuvale naabrile \u2013 v\u00f5tab tavaliste keemiliste rakettidega aega kolm p\u00e4eva. Reisid Marsile, asteroidiidele ja v\u00e4limistele planeetidele kestaksid mitu kuud v\u00f5i isegi aastaid.<\/p>\n<\/div>\n

Pikkade kosmosereiside ajal halveneb astronautide tervis ja f\u00fc\u00fcsiline vorm kiirguse ja kaalutuse m\u00f5jul. Pikad missioonid n\u00f5uavad ka rohkem \u00f5hku, vett ja toitu ning suurendavad t\u00f5rgete tekkimise t\u00f5en\u00e4osust. Kuidas aga saaks missioone l\u00fchendada?<\/p>\n

\u00dcks v\u00f5imalus on muuta raketimootorid t\u00f5husamaks. ESA insenerid on juba ehitanud elektrilise t\u00f5ukej\u00f5us\u00fcsteemi Kuu-missiooniks SMART-1. Elektrimootorid on tavalistest mootoritest palju v\u00e4iksemad ja kergemad. Kuigi nad tarbivad palju v\u00e4hem k\u00fctust, suudavad nad saavutada suurema heitgaasi kiiruse \u2013 kiiruse, millega mootorist v\u00e4ljuv gaas kosmosesse paiskub.<\/p>\n

Kasutades elektrit, mis tekib p\u00e4ikesekiirguse langemisel p\u00e4ikesepatareidest valmistatud \u2018tiibadele\u2019, suudavad need kosmoselaeva kiirust aeglaselt suurendada, kuni see liigub mitu korda kiiremini kui keemiline rakett.<\/p>\n

P\u00e4ikesest kaugel asuvate missioonide jaoks on vaja tuumamootoreid. Selliste mootorite abil v\u00f5ib l\u00f5puks olla v\u00f5imalik lennata Marsile vaid m\u00f5ne p\u00e4evaga.<\/p>","protected":false},"excerpt":{"rendered":"

Space is vast. A trip to the Moon – our neighbour in space \u2013 will take three days using normal chemical rockets. Journeys to Mars, the asteroids and the outer […]<\/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\/11\/smart-1_showing_off_ion_engine2\/17872705-2-eng-GB\/SMART-1_showing_off_ion_engine.jpg","esa_banner_description":"SMART-1 showing off ion engine","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2004\/11\/SMART-1_showing_off_ion_engine2","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":[62,10,13],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1139","post","type-post","status-publish","format-standard","hentry","category-exploration","category-learn","category-life-in-space","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/1139","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=1139"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/1139\/revisions"}],"predecessor-version":[{"id":2282,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/1139\/revisions\/2282"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/media?parent=1139"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/categories?post=1139"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/tags?post=1139"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/panel?post=1139"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/language?post=1139"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/age?post=1139"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/duration?post=1139"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/resource_type?post=1139"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/audience?post=1139"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/wf_post_folders?post=1139"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}