{"id":45299,"date":"2026-04-15T20:33:08","date_gmt":"2026-04-15T20:33:08","guid":{"rendered":"https:\/\/www.europesays.com\/sk\/45299\/"},"modified":"2026-04-15T20:33:08","modified_gmt":"2026-04-15T20:33:08","slug":"koniec-sveta-pride-skor-vedci-menia-odhady-o-miliardu-rokov","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/sk\/45299\/","title":{"rendered":"Koniec sveta pr\u00edde sk\u00f4r, vedci menia odhady o miliardu rokov"},"content":{"rendered":"

WASHINGTON – Nov\u00e9 v\u00fdpo\u010dty nazna\u010duj\u00fa, \u017ee \u017eivot na Zemi nemus\u00ed vydr\u017ea\u0165 tak dlho, ako sa doteraz predpokladalo. Vedci hovoria o z\u00e1sadnej zmene v odhadoch.<\/p>\n

\t\t\t\tNov\u00fd poh\u013ead na bud\u00facnos\u0165 plan\u00e9ty<\/p>\n

Kedy sa na Zemi skon\u010d\u00ed \u017eivot? Ot\u00e1zka, ktor\u00e1 znie ako sci-fi, m\u00e1 pod\u013ea vedcov \u010doraz konkr\u00e9tnej\u0161iu odpove\u010f.<\/p>\n

V\u00fdskumn\u00edci Kazumi Ozaki a Christopher T. Reinhard pri\u0161li s nov\u00fdm modelom v\u00fdvoja plan\u00e9ty, ktor\u00fd vych\u00e1dza z d\u00e1t NASA Astrobiology Institute.<\/p>\n

Pod\u013ea ich z\u00e1verov \u017eivot na Zemi zanikne pribli\u017ene o jednu miliardu rokov. Ide o v\u00fdrazn\u00e9 skr\u00e1tenie oproti star\u0161\u00edm odhadom, ktor\u00e9 hovorili a\u017e o dvoch miliard\u00e1ch rokov.<\/p>\n

Vedci menia doteraj\u0161ie predstavy<\/p>\n

\u0160t\u00fadia publikovan\u00e1 v odbornom \u010dasopise Nature Geoscience upravuje dlhoro\u010dn\u00e9 predstavy o \u017eivotnosti zemskej biosf\u00e9ry.<\/p>\n

\u201ePo dlh\u00fd \u010das sa trvanie \u017eivota na Zemi odhadovalo na z\u00e1klade postupn\u00e9ho zvy\u0161ovania svietivosti Slnka,\u201c vysvetlil Ozaki.<\/p>\n

Na nov\u00e9 zistenia upozornil aj port\u00e1l Daily Star<\/a>.<\/p>\n

Minulos\u0165, ktor\u00e1 v\u0161etko zmenila<\/p>\n

Aby vedci pochopili bud\u00facnos\u0165, vr\u00e1tili sa hlboko do minulosti. Pred pribli\u017ene 2,5 miliardy rokov bola atmosf\u00e9ra Zeme takmer bez kysl\u00edka.<\/p>\n

Zlom nastal s pr\u00edchodom organizmov, ktor\u00e9 za\u010dali kysl\u00edk produkova\u0165. Tento proces spustil tzv. ve\u013ek\u00fa kysl\u00edkov\u00fa katastrofu \u2013 udalos\u0165, ktor\u00e1 zni\u010dila v\u00e4\u010d\u0161inu dovtedaj\u0161ieho \u017eivota.<\/p>\n

Paradoxne pr\u00e1ve t\u00e1to katastrofa pripravila p\u00f4du pre vznik komplexn\u00fdch organizmov vr\u00e1tane t\u00fdch dne\u0161n\u00fdch.<\/p>\n

K\u013e\u00fa\u010dov\u00fd faktor: meniace sa Slnko<\/p>\n

Bud\u00facnos\u0165 Zeme v\u0161ak ovplyvn\u00ed in\u00fd proces \u2013 postupn\u00e1 premena Slnka.<\/p>\n

Ako sa bude hviezda zv\u00e4\u010d\u0161ova\u0165 a zvy\u0161ova\u0165 svoju \u017eiarivos\u0165, plan\u00e9ta sa za\u010dne prehrieva\u0165. Zv\u00fd\u0161en\u00e9 mno\u017estvo energie sp\u00f4sob\u00ed, \u017ee voda sa bude vo v\u00e4\u010d\u0161ej miere pres\u00fava\u0165 do vy\u0161\u0161\u00edch vrstiev atmosf\u00e9ry.<\/p>\n

Tento proces naru\u0161\u00ed stabilitu kysl\u00edka, ktor\u00fd je nevyhnutn\u00fd pre existenciu zlo\u017eitej\u0161\u00edch foriem \u017eivota.<\/p>\n

Atmosf\u00e9ra sa zmen\u00ed, \u017eivot zmizne<\/p>\n

Vedci predpokladaj\u00fa, \u017ee kysl\u00edkov\u00e9 podmienky sa postupne zhor\u0161ia nato\u013eko, \u017ee komplexn\u00fd \u017eivot nebude schopn\u00fd pre\u017ei\u0165.<\/p>\n

Ani rastliny a mikroorganizmy produkuj\u00face kysl\u00edk u\u017e nedok\u00e1\u017eu udr\u017ea\u0165 rovnov\u00e1hu, na ktorej dnes z\u00e1vis\u00ed cel\u00fd ekosyst\u00e9m.<\/p>\n

Zem sa tak postupne stane neob\u00fdvate\u013enou.<\/p>\n

\u010cas e\u0161te m\u00e1me, rie\u0161enia sa h\u013eadaj\u00fa<\/p>\n

Aj ke\u010f progn\u00f3za znie dramaticky, d\u00f4vod na paniku zatia\u013e neexistuje. Pod\u013ea v\u00fdpo\u010dtov vedcov nastane tento scen\u00e1r pribli\u017ene o miliardu rokov.<\/p>\n

To d\u00e1va \u013eudstvu obrovsk\u00fd \u010dasov\u00fd priestor \u2013 \u010di u\u017e na technologick\u00e9 rie\u0161enia, alebo h\u013eadanie nov\u00fdch domovov mimo Zeme.<\/p>\n

Jednou z iniciat\u00edv je projekt LUVOIR, ktor\u00fd pripravuje NASA. Tento vesm\u00edrny teleskop by mal sk\u00fama\u0165 podobn\u00e9 procesy na vzdialen\u00fdch plan\u00e9tach.<\/p>\n

Vedci tak chc\u00fa lep\u0161ie pochopi\u0165 nielen vznik \u017eivota, ale aj jeho z\u00e1nik \u2013 a mo\u017eno t\u00fdm z\u00edska\u0165 k\u013e\u00fa\u010d k bud\u00facnosti \u013eudstva.

\n\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"WASHINGTON – Nov\u00e9 v\u00fdpo\u010dty nazna\u010duj\u00fa, \u017ee \u017eivot na Zemi nemus\u00ed vydr\u017ea\u0165 tak dlho, ako sa doteraz predpokladalo. Vedci…\n","protected":false},"author":2,"featured_media":45300,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32],"tags":[34,37,16843,1352,33,5250,8687,43,40,39,42,41,36,38,35,5343],"class_list":{"0":"post-45299","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-spravy","8":"tag-headlines","9":"tag-hlavne-spravy","10":"tag-koniec-sveta","11":"tag-nasa","12":"tag-news","13":"tag-predpoved","14":"tag-prognoza","15":"tag-sk","16":"tag-slovak","17":"tag-slovakia","18":"tag-slovencina","19":"tag-slovensko","20":"tag-spravy","21":"tag-titulky","22":"tag-top-stories","23":"tag-vedci"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@sk\/116410633710046839","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/posts\/45299","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/comments?post=45299"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/posts\/45299\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/media\/45300"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/media?parent=45299"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/categories?post=45299"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/tags?post=45299"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}