{"id":973,"date":"2005-12-05T10:52:00","date_gmt":"2005-12-05T09:52:00","guid":{"rendered":"https:\/\/kids.esa.int\/water_on_mars_but_not_a_drop_to_drink\/"},"modified":"2026-10-08T00:34:23","modified_gmt":"2026-10-07T22:34:23","slug":"water_on_mars_but_not_a_drop_to_drink","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/et\/water_on_mars_but_not_a_drop_to_drink\/","title":{"rendered":"Vesi Marsil \u2013 kuid mitte tilkagi joomiseks"},"content":{"rendered":"
\n

Marsi pind on praegu sama kuiv kui k\u00f5rbes, kuid ESA kosmosesondi \u201eMars Express\u201d uued tulemused kinnitavad, et vesi on m\u00e4nginud planeedi ajaloos olulist rolli. Kosmosesondi tundlikud m\u00f5\u00f5teriistad kinnitavad, et kuiv Punane Planeet oli kunagi palju niiskem ning et veej\u00e4\u00e4 on t\u00f5en\u00e4oliselt laialt levinud pinnase all.<\/p>\n<\/div>\n

Eelmise suve jooksul edastas orbiteri radar m\u00f5ne n\u00e4dala jooksul raadiosignaale, mis l\u00e4bisid pinnase ja peegeldusid tagasi maa-alustest kihtidest. Nende kaja signaalide anal\u00fc\u00fcs on toonud esile k\u00f5verad struktuurid, mis v\u00f5ivad olla maap\u00f5ue mattunud kokkup\u00f5rkebasseinide v\u00e4lis\u00e4\u00e4red.<\/p>\n

\"Hubble's
Hubble\u2019i l\u00e4hedane kohtumine Marsiga<\/figcaption><\/figure>\n

\u00dcks peaaegu ringikujuline struktuur, mille l\u00e4bim\u00f5\u00f5t on umbes 250 km, asub 1,5\u20132,5 km s\u00fcgavusel Chryse Planitia piirkonna p\u00f5hjaosa madalikust. Teadlased usuvad, et see v\u00f5ib sisaldada paksu veej\u00e4\u00e4st rikka materjali kihti. Marsil asuva p\u00f5hjapooluse l\u00e4hedal viitavad tugevad kajaefektid peaaegu puhta, \u00fcle 1 km paksuse veej\u00e4\u00e4kihi olemasolule, mis asub vulkaanilise \u201cmulla\u201d kihi peal.<\/p>\n

MARSIS-radarit on kasutatud ka atmosf\u00e4\u00e4ri \u00fclemise osa \u2013 ionosf\u00e4\u00e4ri \u2013 uurimiseks. Kajaandmed n\u00e4itavad tugevat seost selles piirkonnas asuva elektriseeritud gaasi k\u00e4itumise ja planeedi tahke koore tugeva magnetv\u00e4ljaga piirkondade vahel.<\/p>\n

Teine seade, mida tuntakse nimetusega OMEGA, on avastanud kivimineraale, mida on muutnud vedel vesi. Need \u2018h\u00fcdraatunud\u2019 mineraalid t\u00f5estavad, et miljardite aastate eest leidus Marsil suuri veekoguseid \u2013 ja et tingimused v\u00f5isid tol ajal olla sobivad elu tekkeks.<\/p>","protected":false},"excerpt":{"rendered":"

The surface of Mars is now as dry as a desert, but new results from ESA\u2019s Mars Express confirm that water has played an important role in the planet\u2019s history. […]<\/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\/2005\/11\/mars_express_s_omega_instrument_adds_detail_to_candor_chasma3\/17911528-2-eng-GB\/Mars_Express_s_OMEGA_instrument_adds_detail_to_Candor_Chasma.jpg","esa_banner_description":"Mars Express's OMEGA instrument adds detail to Candor Chasma","esa_banner_credit":"ESA\/OMEGA\/HRSC","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2005\/11\/Mars_Express_s_OMEGA_instrument_adds_detail_to_Candor_Chasma3","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":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-973","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-planets-and-moons"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/973","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=973"}],"version-history":[{"count":5,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/973\/revisions"}],"predecessor-version":[{"id":4766,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/973\/revisions\/4766"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/media?parent=973"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/categories?post=973"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/tags?post=973"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/panel?post=973"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/language?post=973"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/age?post=973"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/duration?post=973"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/resource_type?post=973"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/audience?post=973"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/wf_post_folders?post=973"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}