{"id":7564,"date":"2022-02-27T00:00:00","date_gmt":"2022-02-26T23:00:00","guid":{"rendered":"https:\/\/instrid.sk\/uncategorized\/cinsky-rover-yutu-2-na-mesiaci-objavil-zahadne-sklenene-gule\/"},"modified":"2022-02-27T00:00:00","modified_gmt":"2022-02-26T23:00:00","slug":"cinsky-rover-yutu-2-na-mesiaci-objavil-zahadne-sklenene-gule","status":"publish","type":"post","link":"https:\/\/instrid.sk\/en\/archiv\/cinsky-rover-yutu-2-na-mesiaci-objavil-zahadne-sklenene-gule\/","title":{"rendered":"\u010c\u00ednsky rover Yutu-2 na Mesiaci objavil z\u00e1hadn\u00e9 sklenen\u00e9 gule"},"content":{"rendered":"<p>\u010c\u00ednsky lun\u00e1rny rover <strong>Yutu-2<\/strong> objavil na povrchu Mesiaca <strong>dvojicu z\u00e1hadn\u00fdch sklenen\u00fdch g\u00fa\u013e<\/strong>. Pod\u013ea inform\u00e1ci\u00ed by poloprieh\u013eadn\u00e9 gule mali mera\u0165 <strong>15 a\u017e 25 milimetrov<\/strong>. Robot ich na\u0161iel pomocou svojej <strong>panoramatickej kamery<\/strong>.<\/p>\n<p>Sklaman\u00edm v\u0161ak je, \u017ee robot nedisponuje technol\u00f3giou, ktor\u00e1 by umo\u017enila <strong>analyzova\u0165 chemick\u00e9 zlo\u017eenie<\/strong> t\u00fdchto zvl\u00e1\u0161tnych \u00fatvarov. Napriek tomu s\u00fa gu\u013e\u00f4\u010dky ozna\u010den\u00e9 ako ciele pre bud\u00faci v\u00fdskum. Vedci toti\u017e d\u00fafaj\u00fa, \u017ee by im mohli pom\u00f4c\u0165 pri z\u00edskavan\u00ed <strong>nov\u00fdch inform\u00e1ci\u00ed o\u00a0zlo\u017een\u00ed mesa\u010dn\u00e9ho pl\u00e1\u0161\u0165a a\u00a0procesoch, ktor\u00e9 sa udej\u00fa pri n\u00e1raze meteoritu<\/strong> na mesa\u010dn\u00fd povrch. V\u00fdskum zlo\u017eenia mesa\u010dn\u00e9ho povrchu by mohol odborn\u00edkom prinies\u0165 d\u00f4le\u017eit\u00e9 <strong>poznatky o\u00a0vyu\u017eit\u00ed mesa\u010dn\u00fdch horn\u00edn ako stavebn\u00e9ho materi\u00e1lu<\/strong>.<\/p>\n<h3>Sklo na Mesiaci<\/h3>\n<p>Mal\u00e9 sklenen\u00e9 gule s\u00fa na Mesiaci pomerne be\u017en\u00fdm javom. Zvy\u010dajne ale maj\u00fa <strong>priemer men\u0161\u00ed ako tri milimetre a\u00a0s\u00fa tmav\u00e9<\/strong> a neprieh\u013eadn\u00e9. Drobn\u00e9 gu\u013e\u00f4\u010dky na mesa\u010dnom povrchu zbierali aj <strong>astronauti misie Apollo 16<\/strong>. T\u00ed v\u0161ak svoj v\u00fdskum vykon\u00e1vali na opa\u010dnej strane Mesiaca. V\u00e4\u010d\u0161ina sklenen\u00fdch gu\u013e\u00f4\u010dok objaven\u00fdch astronautmi Apolla v\u0161ak merala menej ako jeden milimeter a\u00a0mala siv\u00fa farbu. Guli\u010dky ktor\u00e9 objavil robot Yutu-2 s\u00fa v\u0161ak takmer <strong>dokonale priesvitn\u00e9 a\u00a0leskl\u00e9<\/strong>.<\/p>\n<p>Drobn\u00e9 gu\u013e\u00f4\u010dky vznikaj\u00fa v\u00a0reakci\u00ed, kedy s\u00fa <strong>miner\u00e1ly bohat\u00e9 na krem\u00edk<\/strong> vystaven\u00e9 <strong>ve\u013emi vysok\u00fdm teplot\u00e1m<\/strong>, pri ktor\u00fdch sa v\u00a0d\u00f4sledku tepla transformuj\u00fa do kvapaln\u00e9ho stavu a\u00a0nadob\u00fadaj\u00fa gu\u013eovit\u00fd tvar. N\u00e1sledne sa vplyvom prostredia r\u00fdchlo ochladzuj\u00fa a\u00a0menia na sklo. Pr\u00e1ve k\u00a0tak\u00fdm vysok\u00fdm teplot\u00e1m doch\u00e1dzalo po\u010das <strong>sope\u010dnej erupcie v obdob\u00ed, kedy bol Mesiac vulkanicky akt\u00edvny<\/strong>. Je v\u0161ak mo\u017en\u00e9, \u017ee vznik gu\u013e\u00f4\u010dok m\u00f4\u017eu zapr\u00ed\u010dini\u0165 aj dopadaj\u00face <strong>meteority<\/strong>.<\/p>\n Sklenen\u00e9 gu\u013e\u00f4\u010dky, ktor\u00e9 objavil rover Yutu-2 [Xiao et al., Science Bulletin]\n<h3>M\u00f4\u017eu by\u0165 star\u00e9 a\u017e 4,2 mili\u00e1rd rokov<\/h3>\n<p>Hoci dnes u\u017e Mesiac nie je vulkanicky akt\u00edvny, sope\u010dn\u00e9 erupcie na \u0148om prebiehali v\u00e4\u010d\u0161inu jeho \u201e\u017eivota\u201c. Pod\u013ea doteraj\u0161\u00edch poznatkov sa prv\u00e1 erupcia mala odohra\u0165 asi <strong>pred 4,2 miliardami rokov<\/strong> a\u00a0najintenz\u00edvnej\u0161ie obdobie vulkanickej aktivity za\u017eil Mesiac pred 3,8 miliardami rokov.<\/p>\n<p>Vedci predpokladaj\u00fa, \u017ee aj sklenen\u00e9 gule, ktor\u00e9 na\u0161iel rover Yutu-2, vznikli s najv\u00e4\u010d\u0161ou pravdepodobnos\u0165ou <strong>pri p\u00e1de meteoritu<\/strong>, nako\u013eko boli spozorovan\u00e9 v bl\u00edzkosti kr\u00e1tera. V\u00fdskum, ktor\u00fd bol publikovan\u00fd vo febru\u00e1rovom \u010d\u00edsle <strong>\u010dasopisu Science Bulletin<\/strong>, tie\u017e ud\u00e1va, \u017ee na z\u00e1klade umiestnenia gu\u013e\u00f4\u010dok a ich neporu\u0161en\u00e9ho tvaru museli by\u0165 sformovan\u00e9 alebo premiestnen\u00e9 na povrch pri dopade meteoritu len ned\u00e1vno. <strong>Mesa\u010dn\u00fd regolit<\/strong> toti\u017e dok\u00e1\u017ee zakry\u0165 \u00fatvary na povrchu mesiaca za <strong>menej ako 100 000 rokov<\/strong>.<\/p>\n<h3>\u010c\u00ednsky rover Yutu-2<\/h3>\n<p>Rover Yutu-2 m\u00e1 za \u00falohu <strong>presk\u00fama\u0165 odvr\u00e1ten\u00fa stranu Mesiaca<\/strong>. Na Mesiac <strong>prist\u00e1l 11. janu\u00e1ra 2019<\/strong> a\u00a0od za\u010diatku misie pre\u0161iel po mesa\u010dnom povrchu viac ne\u017e <strong>915 metrov<\/strong>. Yutu-2 je prv\u00fdm roverom v hist\u00f3rii, ktor\u00e9mu sa podarilo prist\u00e1\u0165 na odvr\u00e1ten\u00fa \u010das\u0165 Mesiaca. Robot \u010d\u00ednskej vesm\u00edrnej agent\u00fary <strong>prist\u00e1l v\u00a0186 kilometrov \u0161irokom\u00a0kr\u00e1teri Von K\u00e1rm\u00e1n<\/strong>, ktor\u00fd sa nach\u00e1dza bl\u00edzko ju\u017en\u00e9ho p\u00f3lu mesiaca. Pre vedcov je t\u00e1to oblas\u0165 obzvl\u00e1\u0161\u0165 zauj\u00edmav\u00e1, nako\u013eko <strong>sa tu nach\u00e1dza \u013ead<\/strong>, ktor\u00fd by sme mohli vyu\u017ei\u0165 pri vybudovan\u00ed trvalej z\u00e1kladne na Mesiaci. Pl\u00e1novan\u00e9 trvanie misie roveru Yutu-2 bolo<strong> len tri mesiace<\/strong>, teraz v\u0161ak dr\u017e\u00ed rekord ako najdlh\u0161ie funguj\u00faci rover na Mesiaci.<\/p>\n Privr\u00e1ten\u00e1 strana Mesiaca [Unsplash]\n<p>Toto v\u0161ak nie je jeho prv\u00fd kuri\u00f3zny objav na odvr\u00e1tenej strane Mesiaca. V\u00a0novembri 2021 \u010d\u00ednska vesm\u00edrna agent\u00fara zdie\u013eala obr\u00e1zok, na ktorom bol zachyten\u00fd mesa\u010dn\u00fd povrch v\u00a0bl\u00edzkosti kr\u00e1tera Von K\u00e1rm\u00e1n <strong>so zvl\u00e1\u0161tnym \u00fatvarom<\/strong>. Z\u00a0mesa\u010dn\u00e9ho horizontu toti\u017e vy\u010dnieval <strong>objekt tvaru kocky<\/strong>.<\/p>\n<p>Zvl\u00e1\u0161tny \u00fatvar si vtedy z\u00edskal pozornos\u0165 nie len vedcov, ale aj verejnosti. Zatia\u013e \u010do sa vedci nemohli zhodn\u00fa\u0165 na tom, \u010do by to mohlo by\u0165, kon\u0161pira\u010dn\u00ed teoretici prich\u00e1dzali s te\u00f3riami o mimozemsk\u00fdch civiliz\u00e1ci\u00e1ch. Robotovi Yutu-2 trvalo nieko\u013eko t\u00fd\u017ed\u0148ov, k\u00fdm sa k objektu pribl\u00ed\u017eil a poslal na Zem detailnej\u0161ie sn\u00edmky. Odborn\u00edci nakoniec dospeli k z\u00e1veru, \u017ee <strong>ide len o\u00a0zvl\u00e1\u0161tne sformovan\u00fa skalu<\/strong>.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #999999\">Zdroje: Interesting Engineering, Live Science, Inverse<\/span><\/p>\n<p><span style=\"color: #999999\">Zdroj titulnej fotografie: CNSA\/Wikimedia Commons<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>\u010c\u00ednsky lun\u00e1rny rover Yutu-2 objavil na povrchu Mesiaca dvojicu z\u00e1hadn\u00fdch sklenen\u00fdch g\u00fa\u013e. Pod\u013ea inform\u00e1ci\u00ed by poloprieh\u013eadn\u00e9 gule mali mera\u0165 15 a\u017e 25 milimetrov. Robot ich<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[51],"tags":[],"class_list":["post-7564","post","type-post","status-publish","format-standard","hentry","category-archiv","two-columns"],"_links":{"self":[{"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/posts\/7564","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/comments?post=7564"}],"version-history":[{"count":0,"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/posts\/7564\/revisions"}],"wp:attachment":[{"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/media?parent=7564"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/categories?post=7564"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/tags?post=7564"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}