Legend\u00e1rn\u00ed rover Spirit p\u0159ist\u00e1l v kr\u00e1teru Gusev u\u017e v lednu 2004 a b\u011bhem n\u00e1sleduj\u00edc\u00edch \u0161esti let zkoumal slo\u017een\u00ed mar\u0165ansk\u00e9 p\u016fdy i hornin. P\u0159esto\u017ee tehdy nasb\u00edral obrovsk\u00e9 mno\u017estv\u00ed dat, jejich skute\u010dn\u00fd v\u00fdznam se poda\u0159ilo odhalit a\u017e nyn\u00ed.<\/p>\n
V\u00fdzkumn\u00edci z australsk\u00e9 Edith Cowan University znovu analyzovali stovky m\u011b\u0159en\u00ed z 32 m\u00edst, kde rover odebral vzorky neporu\u0161en\u00e9 p\u016fdy. Tentokr\u00e1t ale pou\u017eili modern\u011bj\u0161\u00ed analytick\u00e9 metody, kter\u00e9 dok\u00e1zaly spojit jednotliv\u00e1 m\u011b\u0159en\u00ed do jednoho celku. V\u00fdsledkem je podle jejich slov dosud nejpodrobn\u011bj\u0161\u00ed mapa miner\u00e1l\u016f obsahuj\u00edc\u00edch \u017eelezo v b\u011b\u017en\u00e9 mar\u0165ansk\u00e9 p\u016fd\u011b.<\/p>\n
\u201eJedn\u00edm z nejd\u016fle\u017eit\u011bj\u0161\u00edch objev\u016f bylo nalezen\u00ed krystalick\u00e9ho hematitu v b\u011b\u017en\u00e9 mar\u0165ansk\u00e9 p\u016fd\u011b,\u201c uvedl Paulo de Souza, hlavn\u00ed autor studie zve\u0159ejn\u011bn\u00e9 v odborn\u00e9m \u010dasopise Interactions<\/a>. \u201eRoz\u0161\u00ed\u0159en\u00fd v\u00fdskyt tohoto miner\u00e1lu nazna\u010duje nejen to, \u017ee na Marsu byla voda, ale tak\u00e9 to, \u017ee v\u00fdznamn\u00e9 \u010d\u00e1sti planety mohly b\u00fdt kdysi vodou pokryt\u00e9,\u201c dodal.<\/p>\n D\u016fkaz se v datech skr\u00fdval celou dobu<\/p>\n Krystalick\u00fd hematit pat\u0159\u00ed mezi nejv\u00fdznamn\u011bj\u0161\u00ed miner\u00e1ln\u00ed stopy d\u00e1vn\u00e9 vody. M\u016f\u017ee sice vznikat i p\u0159i vulkanick\u00e9 \u010dinnosti, velmi \u010dasto se ale vytv\u00e1\u0159\u00ed tehdy, kdy\u017e horniny dlouhodob\u011b reaguj\u00ed s kapalnou vodou.<\/p>\n P\u0159ekvapiv\u00e9 je, \u017ee p\u0159edchoz\u00ed studie tvrdily prav\u00fd opak \u2013 v okol\u00ed m\u00edsta p\u0159ist\u00e1n\u00ed roveru Spirit se podle nich hematit prakticky nevyskytoval. Nov\u00e1 anal\u00fdza ale uk\u00e1zala, \u017ee tam byl celou dobu. Jeho koncentrace v\u0161ak byla v jednotliv\u00fdch m\u011b\u0159en\u00edch natolik n\u00edzk\u00e1, \u017ee se ztr\u00e1cela v \u0161umu p\u0159\u00edstroj\u016f.<\/p>\n Krom\u011b hematitu v\u011bdci identifikovali tak\u00e9 pozm\u011bn\u011bn\u00fd magnetit, dal\u0161\u00ed miner\u00e1l, kter\u00fd vznik\u00e1 p\u0159i chemick\u00fdch reakc\u00edch mezi horninami a vodou. Pr\u00e1v\u011b kombinace t\u011bchto dvou n\u00e1lez\u016f podle nich posiluje teorii, \u017ee voda mohla p\u0159i utv\u00e1\u0159en\u00ed povrchu Marsu sehr\u00e1t mnohem v\u011bt\u0161\u00ed roli, ne\u017e se dosud p\u0159edpokl\u00e1dalo.<\/p>\n Mohlo j\u00edt o mnohem v\u011bt\u0161\u00ed \u010d\u00e1st Marsu<\/p>\n Objev m\u00e1 nav\u00edc v\u00fdznam i daleko za hranicemi kr\u00e1teru Gusev. Podobn\u00fd prach a p\u016fda toti\u017e pokr\u00fdvaj\u00ed rozs\u00e1hl\u00e9 oblasti Rud\u00e9 planety. Pokud se stejn\u00e9 miner\u00e1ly vytvo\u0159ily stejn\u00fdm zp\u016fsobem i jinde, mohla voda v minulosti ovliv\u0148ovat mnohem v\u011bt\u0161\u00ed \u010d\u00e1st Marsu.<\/p>\n Nov\u00e9 poznatky tak zapadaj\u00ed do st\u00e1le \u0161ir\u0161\u00ed mozaiky d\u016fkaz\u016f. Rover Spirit u\u017e b\u011bhem sv\u00e9 mise objevil horniny pozm\u011bn\u011bn\u00e9 vodou, Curiosity pozd\u011bji potvrdil existenci d\u00e1vn\u00fdch jezer v kr\u00e1teru Gale a Perseverance dnes zkoum\u00e1 vyschl\u00e9 \u0159\u00ed\u010dn\u00ed delty v kr\u00e1teru Jezero, kde hled\u00e1 mo\u017en\u00e9 stopy d\u00e1vn\u00e9ho mikrobi\u00e1ln\u00edho \u017eivota.<\/p>\n VIDEO: K\u00e1men, kter\u00fd vesm\u00edrn\u00fd rover sv\u00fdm t\u00e9m\u011b\u0159 tunov\u00fdm t\u011blem mimod\u011bk rozdrtil, skr\u00fdval to, co NASA popisuje jako opravdov\u00fd poklad.<\/p>\n Zdroje: Springer Nature Link<\/a>, Edith Cowan University<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"Legend\u00e1rn\u00ed rover Spirit p\u0159ist\u00e1l v kr\u00e1teru Gusev u\u017e v lednu 2004 a b\u011bhem n\u00e1sleduj\u00edc\u00edch \u0161esti let zkoumal slo\u017een\u00ed…\n","protected":false},"author":2,"featured_media":170118,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_share_on_mastodon":"0"},"categories":[13],"tags":[5367,74,73,78,75,77,76,1540],"class_list":["post-170117","post","type-post","status-publish","format-standard","has-post-thumbnail","category-veda-a-technika","tag-mars","tag-science","tag-science-technology","tag-technika","tag-technology","tag-veda","tag-veda-a-technika","tag-vesmir"],"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@cz\/117046904386909891","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts\/170117","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/comments?post=170117"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts\/170117\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/media\/170118"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/media?parent=170117"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/categories?post=170117"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/tags?post=170117"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}