{"id":371,"date":"2018-08-23T13:06:00","date_gmt":"2018-08-23T11:06:00","guid":{"rendered":"https:\/\/kids.esa.int\/de_l_eau_liquide_a_ete_trouvee_sur_mars\/"},"modified":"2026-10-08T00:27:24","modified_gmt":"2026-10-07T22:27:24","slug":"de_l_eau_liquide_a_ete_trouvee_sur_mars","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/et\/de_l_eau_liquide_a_ete_trouvee_sur_mars\/","title":{"rendered":"Marsilt on leitud vedelat vett!"},"content":{"rendered":"<div class=\"lede\">\n<p>Kosmosesond \u201eMars Express\u201c tegi \u00e4sja uskumatu avastuse: ta avastas Punase planeedi pinnal vedela vee j\u00e4lgi! Kuna teadlased on Marsil vett otsinud juba mitmeid aastaid, v\u00f5ib see avastus osutuda \u00e4\u00e4rmiselt oluliseks.<\/p>\n<\/div>\n<p>Kauges minevikus oli suur osa Marsi pinnast kaetud ookeanide, j\u00f5gede ja j\u00e4rvedega. Seda saame t\u00e4na n\u00e4ha, kuna Marsil asuvad tohutud kuivanud orud, mida erinevad kosmoses\u00f5idukid on korduvalt pildistanud. Mitmed maandumismoodulid ja uurimisrobotid on seal leidnud ka iidseid mineraale, mis v\u00f5ivad tekkida ainult vedelas vees.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"5333\" data-credit=\"Copyright Context map: NASA\/Viking; THEMIS background: NASA\/JPL-Caltech\/Arizona State University; MARSIS data: ESA\/NASA\/JPL\/ASI\/Univ. Rome; R. Orosei et al 2018\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/08\/Mars_Express_detects_water_buried_under_the_south_pole_of_Mars\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2018\/08\/mars_express_detects_water_buried_under_the_south_pole_of_mars\/18250213-2-eng-GB\/Mars_Express_detects_water_buried_under_the_south_pole_of_Mars.jpg\" alt=\"Mars Express detects water buried under the south pole of Mars\"><figcaption>Mars Express avastas vee, mis on peidetud Marsi l\u00f5unapooluse alla<\/figcaption><\/figure>\n<p>Sellest hoolimata ei saanud see vesi j\u00e4\u00e4da igavesti vedelaks. Marsi kliima muutus l\u00f5puks ja \u2013 kuigi Mars Express on varem avastanud k\u00fclmunud vett Punase Planeedi polaarj\u00e4\u00e4katetel \u2013 on vedel vesi t\u00e4nap\u00e4eval Marsi pinnal m\u00f5eldamatu. Seet\u00f5ttu otsustasid teadlased uurida Marsi aluspinnast! Selleks kasutasid nad Mars Expressi MARSIS-seadet, mis on arenenud Marsi radar, millega saab uurida Punase Planeedi aluspinda ja ionosf\u00e4\u00e4ri. MARSIS on \u00abmaapinnasse tungiv radar\u00bb, mis t\u00e4hendab, et see suudab saata radarimpulsse orbiidilt Marsi pinnale. Registreerides tagasipeegeldunud laineid ja nende tugevust, mis j\u00f5uavad tagasi orbiidil asuvasse saatjasse, saavad teadlaste meeskonnad p\u00fc\u00fcda m\u00f5ista, mis asub pinnase all. See on \u00fcsna geniaalne!<\/p>\n<p>MARSIS-i kogutud andmetel p\u00f5hinev uuring v\u00f5imaldas teha kauaoodatud avastuse. Marsi l\u00f5unapoolusel asub arvukalt j\u00e4\u00e4- ja tolmukihte, mille paksus on 1,5 km ja pikkus umbes 200 km. Teadlaste t\u00e4helepanu k\u00f6itis nende settekihide all asuv eriti heleda radarpeegeldusega ala, mille pikkus on umbes 20 km. Teadlaste hinnangul v\u00f5ib tegemist olla suure vedela veega j\u00e4rvega!<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1920\" data-credit=\"ESA\/DLR\/FU Berlin, CC BY-SA 3.0 IGO\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/08\/Perspective_view_of_Libya_Montes\" data-licence=\"CC BY-SA 3.0 IGO or ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2018\/08\/perspective_view_of_libya_montes\/17894240-2-eng-GB\/Perspective_view_of_Libya_Montes.jpg\" alt=\"Perspective view of Libya Montes\"><figcaption>Liib\u00fca Montese perspektiivvaade<\/figcaption><\/figure>\n<p>Maal arenevad teatud mikroobid veekogudes, mille tingimused ei sobi inimeluks. Kas selles Marsi vees v\u00f5iksid elada mikroskoopilised olendid? Marsi pinnal v\u00f5ib olla veel teisi j\u00e4rvi ja veekogusid. Milliseid saladusi need endas peidavad?<\/p>\n<p>Mars Expressi projekti teadlaste hulka kuuluva Dmitri Titovi s\u00f5nul: \u00abSee p\u00f5nev avastus on ajalooline teaduslik l\u00e4bimurre, mis aitab meil m\u00f5ista nii Marsi arengut kui ka vee ajalugu sellel planeedil ja selle potentsiaalset elamisk\u00f5lblikkust.\u00bb<\/p>\n<p>Kas sooviksite uurida Marsi aluspinnast? Mis teie arvates v\u00f5iksime sealt leida?<\/p>\n<p><b>Kas teadsite seda?<\/b> Mars Express on juba 15 aastat tiirlenud Punaplaneedi orbiidil!<\/p>","protected":false},"excerpt":{"rendered":"<p>La sonde spatiale Mars Express vient de faire une incroyable d\u00e9couverte : elle a d\u00e9tect\u00e9 des signes d\u2019eau \u00e0 l\u2019\u00e9tat liquide sur la Plan\u00e8te rouge ! Alors que la communaut\u00e9 [&hellip;]<\/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\/2018\/08\/mars_express\/17883547-2-eng-GB\/Mars_Express.jpg","esa_banner_description":"Mars Express","esa_banner_credit":"ESA\/ATG medialab; Mars: ESA\/DLR\/FU Berlin, CC BY-SA 3.0 IGO","esa_banner_licence":"CC BY-SA 3.0 IGO or ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/08\/Mars_Express","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":[26],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-371","post","type-post","status-publish","format-standard","hentry","category-news"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/371","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=371"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/371\/revisions"}],"predecessor-version":[{"id":4419,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/371\/revisions\/4419"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/media?parent=371"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/categories?post=371"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/tags?post=371"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/panel?post=371"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/language?post=371"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/age?post=371"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/duration?post=371"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/resource_type?post=371"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/audience?post=371"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/wf_post_folders?post=371"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}