{"id":1133,"date":"2004-11-16T08:14:00","date_gmt":"2004-11-16T07:14:00","guid":{"rendered":"https:\/\/kids.esa.int\/planets_and_moons_life_on_earth\/"},"modified":"2026-10-08T00:36:23","modified_gmt":"2026-10-07T22:36:23","slug":"planets_and_moons_life_on_earth","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/cs\/planets_and_moons_life_on_earth\/","title":{"rendered":"\u017divot na Zemi"},"content":{"rendered":"
\n

Studie fosili\u00ed v prav\u011bk\u00fdch hornin\u00e1ch nazna\u010duj\u00ed, \u017ee \u017eivot pravd\u011bpodobn\u011b vznikl p\u0159ed asi 4 miliardami let, kdy byla Zem\u011b je\u0161t\u011b velmi mlad\u00e1. Nikdo nev\u00ed, jak \u017eivot na Zemi vznikl. V\u011bt\u0161ina v\u011bdc\u016f se domn\u00edv\u00e1, \u017ee vznikl v kapaln\u00e9 vod\u011b. Bylo to v\u0161ak v jez\u00edrk\u00e1ch na povrchu, pod zem\u00ed, nebo na dn\u011b oce\u00e1n\u016f, kde sope\u010dn\u00e1 \u010dinnost vytv\u00e1\u0159\u00ed hork\u00e9 prameny?<\/p>\n<\/div>\n

Experimenty ukazuj\u00ed, \u017ee chemick\u00e9 stavebn\u00ed kameny \u017eivota mohou vznikat ve vesm\u00edru i na Zemi. Mnoh\u00e9 z nich se na Zemi z\u0159ejm\u011b dostaly s dopadaj\u00edc\u00edmi meteority a kometami. Tyto jednoduch\u00e9 \u2018organick\u00e9\u2019 chemick\u00e9 l\u00e1tky se n\u011bjak\u00fdm zp\u016fsobem spojily a vytvo\u0159ily slo\u017eit\u011bj\u0161\u00ed molekuly. Pot\u00e9 se za\u010daly samy kop\u00edrovat a r\u016fst.<\/p>\n

\"Dry
Such\u00e1 p\u016fda<\/figcaption><\/figure>\n

V\u00edme v\u0161ak, \u017ee jakmile se \u017eivot jednou rozb\u011bhne, je neuv\u011b\u0159iteln\u011b odoln\u00fd. \u017div\u00e9 bakterie byly nalezeny v zamrzl\u00e9 Antarktid\u011b, ve vrouc\u00ed vod\u011b i uvnit\u0159 hornin a\u017e p\u011bt kilometr\u016f pod zem\u00ed. V\u00edme tak\u00e9, \u017ee takov\u00e9 organismy mohou p\u0159e\u017e\u00edt cel\u00e9 roky v drsn\u00e9m prost\u0159ed\u00ed vesm\u00edru.<\/p>\n

Jakmile se rostliny roz\u0161\u00ed\u0159ily, uvolnilo se do ovzdu\u0161\u00ed velk\u00e9 mno\u017estv\u00ed kysl\u00edku. Zem\u011b se stala jedinou planetou v na\u0161\u00ed slune\u010dn\u00ed soustav\u011b s atmosf\u00e9rou bohatou na kysl\u00edk. P\u0159i hled\u00e1n\u00ed kysl\u00edku na jin\u00fdch sv\u011btech mo\u017en\u00e1 jednoho dne najdeme d\u016fkazy o mimozemsk\u00e9m \u017eivot\u011b.<\/p>","protected":false},"excerpt":{"rendered":"

Studies of fossils in ancient rocks tell us that life probably began about 4 billion years ago, when the Earth was very young. No one knows how life began on […]<\/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\/05\/dna_s_famous_double-helix_structure3\/17902899-2-eng-GB\/DNA_s_famous_double-helix_structure.jpg","esa_banner_description":"DNA's famous double-helix structure","esa_banner_credit":"ESA 2003. Illustration by Medialab.","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2003\/05\/DNA_s_famous_double-helix_structure3","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-1133","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\/1133","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=1133"}],"version-history":[{"count":5,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/1133\/revisions"}],"predecessor-version":[{"id":4865,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/1133\/revisions\/4865"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/media?parent=1133"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/categories?post=1133"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/tags?post=1133"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/panel?post=1133"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/language?post=1133"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/age?post=1133"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/duration?post=1133"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/resource_type?post=1133"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/audience?post=1133"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/wf_post_folders?post=1133"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}