{"id":218,"date":"2021-03-22T11:41:45","date_gmt":"2021-03-22T10:41:45","guid":{"rendered":"https:\/\/kids.esa.int\/esa_s_mars_express_finds_more_underground_water\/"},"modified":"2026-10-08T00:25:38","modified_gmt":"2026-10-07T22:25:38","slug":"esa_s_mars_express_finds_more_underground_water","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/cs\/esa_s_mars_express_finds_more_underground_water\/","title":{"rendered":"Sonda Mars Express agentury ESA objevila dal\u0161\u00ed podzemn\u00ed vodu"},"content":{"rendered":"<div class=\"lede\">\n<p>Sonda Mars Express agentury ESA se intenzivn\u011b v\u011bnuje pr\u016fzkumu Rud\u00e9 planety. V\u011bdci zapojen\u00ed do mise pr\u00e1v\u011b u\u010dinili vzru\u0161uj\u00edc\u00ed ozn\u00e1men\u00ed: objevili velk\u00e9 mno\u017estv\u00ed kapaln\u00e9 vody!<\/p>\n<\/div>\n<p>Rozlehl\u00e9 jezero o rozloze 20 \u00d7 30 km, kter\u00e9 je p\u0159ibli\u017en\u011b stejn\u011b velk\u00e9 jako m\u011bsto \u0158\u00edm, bylo <a href=\"https:\/\/www.esa.int\/kids\/en\/learn\/Our_Universe\/Planets_and_moons\/Liquid_water_found_on_Mars\" target=\"_blank\" rel=\"noopener\">zalo\u017eeno v roce 2018<\/a> v oblasti ji\u017en\u00edho p\u00f3lu Marsu. Tyto nov\u00e9 v\u00fdzkumy odhalily dal\u0161\u00ed t\u0159i jez\u00edrka, kter\u00e1 ho obklopuj\u00ed. V\u0161echna jsou v\u0161ak poh\u0159bena pod 1,5 km ledu! V\u011bdci se domn\u00edvaj\u00ed, \u017ee voda v t\u011bchto jez\u00edrk\u00e1ch mus\u00ed b\u00fdt slan\u00e1, co\u017e znamen\u00e1, \u017ee m\u016f\u017ee z\u016fstat v kapaln\u00e9m stavu a nezamrzne ani p\u0159i n\u00edzk\u00fdch teplot\u00e1ch na Marsu.<\/p>\n<p>Sonda Mars Express ob\u00edh\u00e1 kolem Rud\u00e9 planety. K tomuto objevu vyu\u017eila speci\u00e1ln\u00ed p\u0159\u00edstroj zvan\u00fd MARSIS, co\u017e je zkratka pro Mars Advanced Radar for Subsurface and Ionosphere Sounding. MARSIS je \u201cradar pronikaj\u00edc\u00ed do podzem\u00ed\u201d, co\u017e znamen\u00e1, \u017ee z ob\u011b\u017en\u00e9 dr\u00e1hy vys\u00edl\u00e1 radarov\u00e9 impulsy sm\u011brem k povrchu Marsu. Na z\u00e1klad\u011b m\u011b\u0159en\u00ed doby, za jakou se impulsy odraz\u00ed zp\u011bt, a jejich intenzity mohou v\u011bdci zjistit, jak to vypad\u00e1 pod povrchem.<\/p>\n<figure class=\"wp-block-embed is-type-video\"><iframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/Am0yFQJIGOs\" title=\"P\u0159ehr\u00e1va\u010d vide\u00ed na YouTube\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/figure>\n<p>V d\u00e1vn\u00e9 minulosti byla Mars teplej\u0161\u00ed a vlh\u010d\u00ed a po jej\u00edm povrchu tekla voda. Postupem \u010dasu se podm\u00ednky zm\u011bnily a kapaln\u00e1 voda ji\u017e na povrchu nem\u016f\u017ee dlouho vydr\u017eet. Objev t\u011bchto jez\u00edrek v\u0161ak nazna\u010duje vzru\u0161uj\u00edc\u00ed mo\u017enost, \u017ee pod povrchem Marsu by mohly b\u00fdt ukryty cel\u00e9 syst\u00e9my prastar\u00fdch jezer, star\u00fdch miliony \u010di dokonce miliardy let. Mohly by b\u00fdt domovem jednoduch\u00fdch forem mimozemsk\u00e9ho \u017eivota? Je to mo\u017en\u00e9, ale bylo by velmi obt\u00ed\u017en\u00e9 je prozkoumat a zjistit to s jistotou.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"8000\" data-credit=\"ESA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2019\/05\/Ten_things_you_did_not_know_about_Mars_6._Water\" 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\/2019\/05\/ten_things_you_did_not_know_about_mars_6._water\/19409834-7-eng-GB\/Ten_things_you_did_not_know_about_Mars_6._Water.png\" alt=\"Ten things you did not know about Mars: 6. Water\"><figcaption>Deset v\u011bc\u00ed, kter\u00e9 jste o Marsu nev\u011bd\u011bli: 6. Voda<\/figcaption><\/figure>\n<p>P\u0159edstavte si, \u017ee byste m\u011bli za \u00fakol navrhnout robota, kter\u00fd by prozkoum\u00e1val tato jez\u00edrka. Napad\u00e1 v\u00e1s n\u011bjak\u00fd zp\u016fsob, jak prorazit led a pot\u00e9 prozkoumat vodu? Co byste mohli objevit?<\/p>\n<p><i>Zaj\u00edmavost: Techniky pou\u017e\u00edvan\u00e9 ke studiu radarov\u00fdch dat z sondy Mars Express jsou podobn\u00e9 t\u011bm, kter\u00e9 v\u011bdci vyu\u017e\u00edvaj\u00ed k v\u00fdzkumu podzemn\u00edch jezer na Zemi, v Antarktid\u011b, Kanad\u011b a Gr\u00f3nsku.<\/i><\/p>\n<p><i>\u00a0<\/i><\/p>","protected":false},"excerpt":{"rendered":"<p>ESA\u2019s Mars Express spacecraft has been busy exploring the red planet. Mission scientists have just made an exciting announcement: they have discovered lots of liquid water! A large lake of [&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\/2003\/04\/artist_s_impression_of_water_under_the_martian_surface\/9968426-2-eng-GB\/Artist_s_impression_of_water_under_the_martian_surface.jpg","esa_banner_description":"Artist\u2019s impression of water under the martian surface","esa_banner_credit":"Illustration by Medialab, ESA 2001","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2003\/04\/Artist_s_impression_of_water_under_the_martian_surface","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-218","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\/cs\/wp-json\/wp\/v2\/posts\/218","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/comments?post=218"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/218\/revisions"}],"predecessor-version":[{"id":4360,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/218\/revisions\/4360"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/media?parent=218"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/categories?post=218"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/tags?post=218"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/panel?post=218"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/language?post=218"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/age?post=218"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/duration?post=218"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/resource_type?post=218"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/audience?post=218"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/wf_post_folders?post=218"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}