[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.kocov.cz\/jak-se-formovaly-planety\/#Article","mainEntityOfPage":"https:\/\/www.kocov.cz\/jak-se-formovaly-planety\/","headline":"Jak se formovaly planety","name":"Jak se formovaly planety","description":"V\u00a0na\u0161em vesm\u00edru se toho nach\u00e1z\u00ed mnohem v\u00edce, ne\u017e by se na prvn\u00ed pohled zd\u00e1lo. M\u00e1me zde hv\u011bzdy, komety, ale tak\u00e9 asteroidy, planety a...","datePublished":"2023-02-28","dateModified":"2023-02-28","author":{"@type":"Person","@id":"https:\/\/www.kocov.cz\/author\/#Person","name":"","url":"https:\/\/www.kocov.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/505fff4dce96a6fd9b2c3bab9d6ad2c90e3ce4a797f024fc5ad345c11f66ba90?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/505fff4dce96a6fd9b2c3bab9d6ad2c90e3ce4a797f024fc5ad345c11f66ba90?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"kocov.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.kocov.cz\/wp-content\/uploads\/vesmir2_2.jpg","url":"https:\/\/www.kocov.cz\/wp-content\/uploads\/vesmir2_2.jpg","height":0,"width":0},"url":"https:\/\/www.kocov.cz\/jak-se-formovaly-planety\/","about":["V\u011bda"],"wordCount":417,"articleBody":"V\u00a0na\u0161em vesm\u00edru se toho nach\u00e1z\u00ed mnohem v\u00edce, ne\u017e by se na prvn\u00ed pohled zd\u00e1lo. M\u00e1me zde hv\u011bzdy, komety, ale tak\u00e9 asteroidy, planety a jin\u00e9 objekty. A pr\u00e1v\u011b planety jsou pro n\u00e1s velmi d\u016fle\u017eit\u00e9. Nejen\u017ee na jedn\u00e9 z\u00a0nich \u017eijeme, ale tak\u00e9 se budeme muset v\u00a0budoucnu p\u0159est\u011bhovat na n\u011bjakou jinou, pokud nebudeme cht\u00edt jako druh vyhynout.\u00a0\u00a0Je tedy zaj\u00edmav\u00e9 se pod\u00edvat, jak se vlastn\u011b formovaly. Tento proces toti\u017e nebyl nijak rychl\u00fd ani jednoduch\u00fd. Abychom mu porozum\u011bli, mus\u00edme se vr\u00e1tit na samotn\u00fd za\u010d\u00e1tek na\u0161eho vesm\u00edru, p\u0159ed 13 miliony let.\u00a0V\u00a0t\u00e9 dob\u011b se formovaly prvn\u00ed hv\u011bzdy, av\u0161ak po jak\u00fdchkoliv jin\u00fdch objektech nebylo ani pam\u00e1tky. D\u016fvodem bylo to, \u017ee v\u00a0tu dobu je\u0161t\u011b neexistovaly slo\u017eit\u011bj\u0161\u00ed prvky ne\u017e vod\u00edk a helium. Ov\u0161em ka\u017ed\u00e1 hv\u011bzda, jak v\u0161ichni v\u00edme, m\u00e1 sv\u016fj \u017eivotn\u00ed cyklus. A to platilo i o t\u011bch prvn\u00edch. A podobn\u011b jako dnes, i tehdy zanikla \u010d\u00e1st z\u00a0nich t\u00edm, \u017ee se z\u00a0nich stala supernova, kter\u00e1 vybuchla.\u00a0\u00a0Pr\u00e1v\u011b p\u0159i tomto procesu vznikly slo\u017eit\u011bj\u0161\u00ed prvky, i kdy\u017e teprve v\u00a0plynn\u00e9 podob\u011b. Ty se v\u0161ak d\u00edky gravitaci za\u010daly postupn\u011b k\u00a0sob\u011b p\u0159itahovat a t\u00edm i zhu\u0161\u0165ovat, p\u0159i\u010dem\u017e ty nejt\u011b\u017e\u0161\u00ed kovy byly samoz\u0159ejm\u011b p\u0159itahov\u00e1ny nejv\u011bt\u0161\u00ed silou. Tak za\u010dala vznikat jak\u00e1si koule, nejprve tvo\u0159en\u00e1, jak ji\u017e bylo zm\u00edn\u011bno, t\u011bmi nejt\u011b\u017e\u0161\u00edmi prvky, co\u017e byly obvykle kovy.\u00a0\u010c\u00edm byla tato koule v\u011bt\u0161\u00ed, t\u00edm v\u011bt\u0161\u00ed gravita\u010dn\u00ed silou p\u016fsobila na sv\u00e9 okol\u00ed. Postupn\u011b tak za\u010dala p\u0159itahovat i leh\u010d\u00ed prvky. Tak se postupn\u011b zv\u011bt\u0161ovala, dokud k\u00a0sob\u011b nep\u0159it\u00e1hla ve\u0161ker\u00fd voln\u00fd materi\u00e1l v\u00a0okol\u00ed. Tento proces samoz\u0159ejm\u011b neprob\u00edhal jen na jednom m\u00edst\u011b, n\u00fdbr\u017e v\u0161ude tam, kde k\u00a0tomu byly vhodn\u00e9 podm\u00ednky. T\u00edm se vytvo\u0159ily planety.\u00a0Tento proces nebyl nijak rychl\u00fd. Ve skute\u010dnosti uplynulo od vzniku prvn\u00edch hv\u011bzd po vytvo\u0159en\u00ed planet dev\u011bt miliard let. To je doba mnohem del\u0161\u00ed, ne\u017e si v\u011bt\u0161ina lid\u00ed dok\u00e1\u017ee p\u0159edstavit. Pro v\u00fdvoj \u017eivota byl v\u0161ak tento proces zcela nezbytn\u00fd. A pr\u00e1v\u011b jemu vd\u011b\u010d\u00edme za to, \u017ee zde v\u00a0sou\u010dasnosti m\u016f\u017eeme existovat.                                                                                                                                                                                                                                                                                                                                                                                        5\/5 - (8 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Jak se formovaly planety","item":"https:\/\/www.kocov.cz\/jak-se-formovaly-planety\/#breadcrumbitem"}]}]