{"id":1659,"date":"2023-07-28T07:21:10","date_gmt":"2023-07-28T07:21:10","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=1659"},"modified":"2023-07-28T07:21:10","modified_gmt":"2023-07-28T07:21:10","slug":"saturns-hidden-ocean-moon-mimas-expands-the-boundaries-of-habitability","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/cs\/science\/space-exploration\/saturns-hidden-ocean-moon-mimas-expands-the-boundaries-of-habitability\/","title":{"rendered":"Oce\u00e1n pod ledem: Saturn\u016fv m\u011bs\u00edc Mimas udivuje"},"content":{"rendered":"

Mimas: Saturn\u016fv m\u011bs\u00edc se skryt\u00fdm oce\u00e1nem<\/h2>\n\n

Saturn\u016fv ledov\u00fd m\u011bs\u00edc Mimas m\u016f\u017ee ukr\u00fdvat rozs\u00e1hl\u00fd oce\u00e1n<\/h2>\n\n

Nejmen\u0161\u00ed m\u011bs\u00edc Saturnu, Mimas, p\u0159ekvapil astronomy objevem glob\u00e1ln\u00edho oce\u00e1nu pod svou ledovou krustou. Tento ne\u010dekan\u00fd n\u00e1lez zpochyb\u0148uje na\u0161e ch\u00e1p\u00e1n\u00ed toho, co p\u0159edstavuje obyvateln\u00fd sv\u011bt.<\/p>\n\n

Podpovrchov\u00fd oce\u00e1n na Mimantovi<\/h2>\n\n

V\u011bdci analyzovali tis\u00edce sn\u00edmk\u016f po\u0159\u00edzen\u00fdch sondou Cassini agentury NASA a pozorovali drobn\u00e9 posuny v rotaci a ob\u011bhu Mimantu. Tyto pohyby nebylo mo\u017en\u00e9 vysv\u011btlit pevn\u00fdm j\u00e1drem, co\u017e nazna\u010duje p\u0159\u00edtomnost podpovrchov\u00e9ho oce\u00e1nu.<\/p>\n\n

Odhaduje se, \u017ee oce\u00e1n le\u017e\u00ed p\u0159ibli\u017en\u011b 25 kilometr\u016f pod povrchem a dosahuje hloubky 70 kilometr\u016f. Siln\u00e9 slapov\u00e9 s\u00edly ze Saturnu oh\u0159\u00edvaj\u00ed vnit\u0159ek m\u011bs\u00edce a zabra\u0148uj\u00ed zamrznut\u00ed oce\u00e1nu.<\/p>\n\n

Implikace pro obyvatelnost<\/h2>\n\n

Skryt\u00fd oce\u00e1n Mimantu m\u00e1 v\u00fdznamn\u00e9 d\u016fsledky pro hled\u00e1n\u00ed obyvateln\u00e9ho sv\u011bta. Jeho tepl\u00e9 vody a z\u00e1soba surovin by mohly potenci\u00e1ln\u011b podporovat \u017eivot. Oce\u00e1n v\u0161ak z\u016fst\u00e1v\u00e1 skryt hluboko pod k\u016frou m\u011bs\u00edce, co\u017e zt\u011b\u017euje detekci stop \u017eivota.<\/p>\n\n

Roz\u0161i\u0159ov\u00e1n\u00ed hranic obyvatelnosti<\/h2>\n\n

Objev oce\u00e1nu Mimantu roz\u0161i\u0159uje na\u0161e ch\u00e1p\u00e1n\u00ed potenci\u00e1ln\u011b obyvateln\u00e9ho prost\u0159ed\u00ed. Nazna\u010duje, \u017ee i objekty, kter\u00e9 se zdaj\u00ed nehostinn\u00e9, mohou m\u00edt podm\u00ednky vhodn\u00e9 pro \u017eivot. V\u011bdci spekuluj\u00ed, \u017ee podpovrchov\u00e9 oce\u00e1ny mohou existovat i na dal\u0161\u00edch m\u011bs\u00edc\u00edch ve slune\u010dn\u00ed soustav\u011b, nap\u0159\u00edklad na m\u011bs\u00edc\u00edch Uranu a Pluta.<\/p>\n\n

D\u016fkazy pro podpovrchov\u00fd oce\u00e1n<\/h2>\n\n

Posuny v Mimantov\u011b pohybu<\/h2>\n\n

Anal\u00fdza sn\u00edmk\u016f Cassini odhalila jemn\u00e9 posuny v rotaci a ob\u011bhu Mimantu b\u011bhem 13 let. Tyto posuny nebylo mo\u017en\u00e9 vysv\u011btlit pevn\u00fdm j\u00e1drem, ale byly v souladu s p\u0159\u00edtomnost\u00ed glob\u00e1ln\u00edho oce\u00e1nu.<\/p>\n\n

Slapov\u00e9 oh\u0159\u00edv\u00e1n\u00ed<\/h2>\n\n

Siln\u00e9 slapov\u00e9 s\u00edly ze Saturnu vytv\u00e1\u0159ej\u00ed teplo uvnit\u0159 Mimantu. Toto teplo spolu s t\u0159en\u00edm mezi vodou a skalnat\u00fdm j\u00e1drem zabra\u0148uje ochlazen\u00ed oce\u00e1nu do pevn\u00e9 formy.<\/p>\n\n

Objem oce\u00e1nu<\/h2>\n\n

V\u011bdci odhaduj\u00ed, \u017ee nejm\u00e9n\u011b 50 % objemu Mimantu je napln\u011bno tekutou vodou, co\u017e je zna\u010dn\u00e9 mno\u017estv\u00ed pro m\u011bs\u00edc jeho velikosti. To nazna\u010duje, \u017ee oce\u00e1n je podstatnou sou\u010d\u00e1st\u00ed Mimantu.<\/p>\n\n

V\u00fdzvy a budouc\u00ed v\u00fdzkum<\/h2>\n\n

P\u0159es objev podpovrchov\u00e9ho oce\u00e1nu z\u016fst\u00e1v\u00e1 detekce stop \u017eivota na Mimantovi v\u00fdzvou kv\u016fli jeho siln\u00e9 k\u016f\u0159e. Budouc\u00ed v\u00fdzkum se zam\u011b\u0159\u00ed na prozkoum\u00e1n\u00ed zp\u016fsob\u016f, jak z\u00edskat p\u0159\u00edstup k oce\u00e1nu nebo detekovat zn\u00e1mky \u017eivota z povrchu.<\/p>\n\n

Objev oce\u00e1nu Mimantu je d\u016fkazem pokra\u010duj\u00edc\u00edho pr\u016fzkumu na\u0161\u00ed slune\u010dn\u00ed soustavy a potenci\u00e1lu pro neo\u010dek\u00e1van\u00e9 objevy, kter\u00e9 zpochyb\u0148uj\u00ed na\u0161e p\u0159edpoklady o povaze obyvateln\u00e9ho prost\u0159ed\u00ed.<\/p>","protected":false},"excerpt":{"rendered":"

Mimas: Saturn\u016fv m\u011bs\u00edc se skryt\u00fdm oce\u00e1nem Saturn\u016fv ledov\u00fd m\u011bs\u00edc Mimas m\u016f\u017ee ukr\u00fdvat rozs\u00e1hl\u00fd oce\u00e1n Nejmen\u0161\u00ed m\u011bs\u00edc Saturnu, Mimas, p\u0159ekvapil astronomy objevem glob\u00e1ln\u00edho oce\u00e1nu pod svou ledovou krustou. Tento ne\u010dekan\u00fd n\u00e1lez…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[494],"tags":[3593,3594,3595,724,896,3590,2309,3591,3596,927,3592,2205,3353],"class_list":["post-1659","post","type-post","status-publish","format-standard","hentry","category-space-exploration","tag-crust","tag-geysers","tag-cassini-spacecraft","tag-ice","tag-moon","tag-mimas","tag-habitability","tag-ocean","tag-planetary","tag-saturn","tag-subsurface","tag-scientist","tag-water"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/1659","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/comments?post=1659"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/1659\/revisions"}],"predecessor-version":[{"id":1660,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/1659\/revisions\/1660"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=1659"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=1659"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=1659"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}