{"id":849,"date":"2010-02-25T13:30:00","date_gmt":"2010-02-25T12:30:00","guid":{"rendered":"https:\/\/kids.esa.int\/mars_express_and_the_mystery_of_phobos\/"},"modified":"2026-10-08T00:32:58","modified_gmt":"2026-10-07T22:32:58","slug":"mars_express_and_the_mystery_of_phobos","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/et\/mars_express_and_the_mystery_of_phobos\/","title":{"rendered":"Mars Express ja Phobose m\u00f5istatus"},"content":{"rendered":"

ESA kosmosesond \u201eMars Express\u201c on saatnud tagasi muljetavaldavaid pilte ja muid andmeid alates sellest, kui see j\u00f5udis Punasele Planeedile 2003. aasta detsembris. Kuigi Marsi on selle peamine sihtm\u00e4rk, viib kosmosesondi polaarne orbiit seda m\u00f5nikord l\u00e4hedale Phobosele, mis on planeedi kahe kuu seast suurem. Viimase l\u00e4henemiste seeria jooksul, mis toimub 16. veebruarist 26. m\u00e4rtsini, seab \u201eMars Express\u201c 3. m\u00e4rtsil uue rekordi, lennates vaid 50 km kaugusele selle pinnast. Nende l\u00e4henemiste k\u00e4igus kogutud andmed v\u00f5ivad aidata lahendada m\u00f5ningaid selle intrigeeriva v\u00e4ikese kaaslase \u00fcmbritsevaid m\u00f5istatusi.<\/p>\n

\"Mars
Mars Express<\/figcaption><\/figure>\n

Mars Expressi ja teiste kosmoses\u00f5idukite poolt saadetud pildid n\u00e4itavad, et Phobos on r\u00e4situd, kartulikujuline kivi, mille l\u00e4bim\u00f5\u00f5t on alla 28 km. See liigub peaaegu ringikujulisel ekvatoriaalsel orbiidil, umbes 6000 km k\u00f5rgusel planeedi pinnast. Et v\u00e4ltida kokkup\u00f5rget Marsiga, peab see oma orbiidil liikuma v\u00e4ga kiiresti. Iga tiir kestab 7 tundi ja 39 minutit, nii et planeedil seisev inimene n\u00e4eks Phobost kolm korda p\u00e4evas taevas l\u00e4\u00e4nest itta liikumas.<\/p>\n

Enamik teadlasi usub, et see v\u00e4ike kosmosekivi on asteroid, mis r\u00e4ndas liiga l\u00e4hedale Marsile ja j\u00e4i selle gravitatsiooni m\u00f5juv\u00e4lja. Siiski on v\u00e4ga raske selgitada, kuidas Phobos j\u00f5udis oma praegusele orbiidile. Enamik gravitatsiooni m\u00f5juv\u00e4lja j\u00e4\u00e4nud kuusid liiguvad v\u00e4ga elliptilistel (munakujulistel) orbiitidel, mis asuvad oma planeedist kaugel. \u201eMars Express\u201c v\u00f5ib aidata seda m\u00f5istatust lahendada. Uurides, kuidas Phobose gravitatsioon m\u00f5jutab kosmoselaeva ja muudab selle orbiiti, saavad teadlased rohkem teada kuu sisemuse kohta. Varasemad andmed on viidanud sellele, et Phobos v\u00f5ib olla poorne kivikuhja, milles on palju t\u00fchje kohti.<\/p>","protected":false},"excerpt":{"rendered":"

ESA\u2019s Mars Express orbiter has been sending back remarkable images and other data since it reached the Red Planet in December 2003. Although Mars is its primary target, the spacecraft\u2019s […]<\/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\/2009\/12\/phobos_up_close2\/17873150-2-eng-GB\/Phobos_up_close.jpg","esa_banner_description":"Phobos up close","esa_banner_credit":"ESA\/DLR\/FU Berlin (G. Neukum)","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2009\/12\/Phobos_up_close2","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":[10,65,40],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-849","post","type-post","status-publish","format-standard","hentry","category-learn","category-mission-control","category-technology"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/849","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=849"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/849\/revisions"}],"predecessor-version":[{"id":4706,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/849\/revisions\/4706"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/media?parent=849"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/categories?post=849"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/tags?post=849"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/panel?post=849"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/language?post=849"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/age?post=849"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/duration?post=849"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/resource_type?post=849"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/audience?post=849"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/wf_post_folders?post=849"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}