{"id":1128,"date":"2004-11-15T16:10:00","date_gmt":"2004-11-15T15:10:00","guid":{"rendered":"https:\/\/kids.esa.int\/planet_earth_-_a_water_world\/"},"modified":"2026-10-08T00:36:19","modified_gmt":"2026-10-07T22:36:19","slug":"planet_earth_-_a_water_world","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/cs\/planet_earth_-_a_water_world\/","title":{"rendered":"Planeta Zem\u011b \u2013 vodn\u00ed sv\u011bt"},"content":{"rendered":"
\n

Zem\u011b se nepodob\u00e1 \u017e\u00e1dn\u00e9 jin\u00e9 planet\u011b, kterou jsme dosud pozorovali. Je to jedin\u00fd n\u00e1m zn\u00e1m\u00fd sv\u011bt, kter\u00fd m\u00e1 rozs\u00e1hl\u00e9 plochy povrchov\u00e9 vody a v atmosf\u00e9\u0159e velk\u00e9 mno\u017estv\u00ed kysl\u00edku. Je to tak\u00e9 jedin\u00fd zn\u00e1m\u00fd sv\u011bt, na kter\u00e9m existuje \u017eivot. To z n\u00ed \u010din\u00ed velmi v\u00fdjime\u010dnou planetu.<\/p>\n<\/div>\n

P\u0159i pohledu z kosmick\u00e9 lodi nebo z M\u011bs\u00edce se Zem\u011b jev\u00ed jako modr\u00e1 planeta \u2013 o\u00e1za ve vesm\u00edru. Je to proto, \u017ee asi sedm desetin jej\u00edho povrchu pokr\u00fdvaj\u00ed oce\u00e1ny. Kdy\u017e Slunce oh\u0159eje vodu, p\u0159em\u011bn\u00ed se na plyn (zn\u00e1m\u00fd jako vodn\u00ed p\u00e1ra). Pokud se tento plyn ochlad\u00ed, p\u0159em\u011bn\u00ed se zp\u011bt na vodn\u00ed kapky, kter\u00e9 tvo\u0159\u00ed mraky a d\u00e9\u0161\u0165.<\/p>\n

Tento kolob\u011bh vody je mo\u017en\u00fd d\u00edky tomu, \u017ee Zem\u011b le\u017e\u00ed 150 milion\u016f km od Slunce, v takzvan\u00e9 \u2018Goldilocksov\u011b\u2019 z\u00f3n\u011b Slune\u010dn\u00ed soustavy. Jako t\u0159et\u00ed planeta od Slunce nen\u00ed Zem\u011b ani p\u0159\u00edli\u0161 hork\u00e1, ani p\u0159\u00edli\u0161 chladn\u00e1 na to, aby na n\u00ed mohly existovat oce\u00e1ny. Teplota je zde tak\u00e9 ide\u00e1ln\u00ed pro \u017eivot. A tak tomu je ji\u017e miliardy let.<\/p>","protected":false},"excerpt":{"rendered":"

Earth is like no other planet that we have yet observed. It is the only world we know that has large areas of surface water and a lot of oxygen […]<\/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\/earth_view_32\/17883695-2-eng-GB\/Earth_view_3.jpg","esa_banner_description":"","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2003\/04\/Earth_view_32","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":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1128","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-planets-and-moons","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/1128","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=1128"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/1128\/revisions"}],"predecessor-version":[{"id":2271,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/1128\/revisions\/2271"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/media?parent=1128"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/categories?post=1128"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/tags?post=1128"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/panel?post=1128"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/language?post=1128"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/age?post=1128"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/duration?post=1128"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/resource_type?post=1128"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/audience?post=1128"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/wf_post_folders?post=1128"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}