{"id":900,"date":"2008-12-15T09:35:00","date_gmt":"2008-12-15T08:35:00","guid":{"rendered":"https:\/\/kids.esa.int\/life_on_extrasolar_planets\/"},"modified":"2026-10-08T00:33:33","modified_gmt":"2026-10-07T22:33:33","slug":"life_on_extrasolar_planets","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/cs\/life_on_extrasolar_planets\/","title":{"rendered":"\u017divot na exoplanet\u00e1ch"},"content":{"rendered":"
\n

V roce 2008 objevil Hubble\u016fv vesm\u00edrn\u00fd dalekohled NASA\/ESA oxid uhli\u010dit\u00fd v atmosf\u00e9\u0159e planety o velikosti Jupiteru ob\u00edhaj\u00edc\u00ed kolem jin\u00e9 hv\u011bzdy. To bylo pova\u017eov\u00e1no za v\u00fdznamn\u00fd krok v hled\u00e1n\u00ed d\u016fkaz\u016f o existenci \u017eivota na jin\u00fdch sv\u011btech.<\/p>\n<\/div>\n

Dosud bylo objeveno p\u0159ibli\u017en\u011b 300 planet ob\u00edhaj\u00edc\u00edch kolem vzd\u00e1len\u00fdch hv\u011bzd. Bohu\u017eel jsou tyto exoplanety tak slab\u011b z\u00e1\u0159\u00edc\u00ed a tak vzd\u00e1len\u00e9, \u017ee je velmi obt\u00ed\u017en\u00e9 je studovat. D\u00edky modern\u00edm p\u0159\u00edstroj\u016fm v\u0161ak v\u011bdci postupn\u011b za\u010d\u00ednaj\u00ed z\u00edsk\u00e1vat v\u00edce informac\u00ed o t\u011bchto mimozemsk\u00fdch sv\u011btech a o plynech, z nich\u017e se skl\u00e1daj\u00ed jejich atmosf\u00e9ry.<\/p>\n

Oxid uhli\u010dit\u00fd je plyn, kter\u00fd rostliny v noci vylu\u010duj\u00ed a kter\u00fd vyu\u017e\u00edvaj\u00ed k r\u016fstu. Zv\u00ed\u0159ata a lid\u00e9 jej vydechuj\u00ed ka\u017ed\u00fdch n\u011bkolik sekund. Jako jeden z hlavn\u00edch sklen\u00edkov\u00fdch plyn\u016f zadr\u017euje teplo a p\u0159isp\u00edv\u00e1 k oteplov\u00e1n\u00ed planety. Uhl\u00edk je tak\u00e9 z\u00e1kladem takzvan\u00fdch organick\u00fdch slou\u010denin, kter\u00e9 pat\u0159\u00ed mezi stavebn\u00ed kameny \u017eivota. Hubble\u016fv teleskop nyn\u00ed prok\u00e1zal, \u017ee dok\u00e1\u017eeme detekovat oxid uhli\u010dit\u00fd na vzd\u00e1len\u00fdch planet\u00e1ch a odhadnout jeho mno\u017estv\u00ed. Jedn\u00e1 se o v\u00fdznamn\u00fd pokrok v dlouhodob\u00e9m \u00fasil\u00ed zjistit, z \u010deho jsou tyto sv\u011bty slo\u017eeny a zda by mohly podporovat \u017eivot.<\/p>\n

Planeta s ozna\u010den\u00edm HD 189733b je pro \u017eivot p\u0159\u00edli\u0161 hork\u00e1. Je v\u0161ak vhodn\u00e1 k pozorov\u00e1n\u00ed, proto\u017ee jednou za 2,2 dne zmiz\u00ed za svou mate\u0159skou hv\u011bzdou. Studiem pravideln\u00fdch zm\u011bn v mno\u017estv\u00ed sv\u011btla dopadaj\u00edc\u00edho na Zemi mohou v\u011bdci analyzovat atmosf\u00e9ru t\u00e9to planety. Ji\u017e d\u0159\u00edve zde byla zji\u0161t\u011bna p\u0159\u00edtomnost vodn\u00ed p\u00e1ry a metanu. Nov\u00e1 pozorov\u00e1n\u00ed z Hubbleova teleskopu dokazuj\u00ed, \u017ee na planet\u00e1ch ob\u00edhaj\u00edc\u00edch kolem jin\u00fdch hv\u011bzd lze m\u011b\u0159it z\u00e1kladn\u00ed chemick\u00e9 slo\u017eky nezbytn\u00e9 pro \u017eivot.<\/p>","protected":false},"excerpt":{"rendered":"

In 2008, the NASA\/ESA Hubble Space Telescope discovered carbon dioxide in the atmosphere of a Jupiter-sized planet orbiting another star. This was seen as an important step in the search […]<\/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\/2008\/12\/hd_189733b2\/18246735-2-eng-GB\/HD_189733b.jpg","esa_banner_description":"HD 189733b","esa_banner_credit":"ESA, NASA, M. Kornmesser (ESA\/Hubble) and STScI","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2008\/12\/HD_189733b2","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":[14,10,13],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-900","post","type-post","status-publish","format-standard","hentry","category-are-we-alone","category-learn","category-life-in-space"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/900","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=900"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/900\/revisions"}],"predecessor-version":[{"id":2043,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/900\/revisions\/2043"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/media?parent=900"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/categories?post=900"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/tags?post=900"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/panel?post=900"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/language?post=900"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/age?post=900"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/duration?post=900"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/resource_type?post=900"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/audience?post=900"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/wf_post_folders?post=900"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}