{"id":4586,"date":"2022-01-26T14:46:28","date_gmt":"2022-01-26T13:46:28","guid":{"rendered":"https:\/\/prahaskolska.200.solutions.uvirt120.active24.cz\/?p=4586"},"modified":"2022-01-26T14:46:28","modified_gmt":"2022-01-26T13:46:28","slug":"na-marsu-byly-nalezeny-zvysene-koncentrace-uhliku-12-vedci-spekuluji-o-moznosti-mikrobiologickeho-zivota","status":"publish","type":"post","link":"https:\/\/prahaskolska.200.solutions\/?p=4586","title":{"rendered":"Na Marsu byly nalezeny zv\u00fd\u0161en\u00e9 koncentrace uhl\u00edku-12, v\u011bdci spekuluj\u00ed o mo\u017enosti mikrobiologick\u00e9ho \u017eivota"},"content":{"rendered":"\n<p><strong>NASA p\u0159ed n\u011bkolika dny ozn\u00e1mila, \u017ee jejich vesm\u00edrn\u00e9 voz\u00edtko Curiosity nalezlo na Marsu neobvyklou koncentraci uhl\u00edku-12. Tento izotop je na Zemi spojov\u00e1n s biologick\u00fdmi procesy, tak\u017ee se nask\u00fdt\u00e1 mo\u017enost, \u017ee bude zanedlouho na Marsu objeven \u017eivot.<\/strong><\/p>\n\n\n\n<p>Zat\u00edm se ale jedn\u00e1 pouze o anom\u00e1lii. &#8222;Na Marsu nach\u00e1z\u00edme v\u011bci, kter\u00e9 jsou l\u00e1kav\u011b zaj\u00edmav\u00e9, ale pot\u0159ebovali bychom v\u00edce d\u016fkaz\u016f, abychom mohli \u0159\u00edct, \u017ee jsme identifikovali \u017eivot,&#8220; \u0159ekl Paul Mahaffy, hlavn\u00ed v\u00fdzkumn\u00edk projektu Sample Analysis at Mars. Vzorky budou podrobeny s\u00e9rii mnoh\u00fdch anal\u00fdz a v\u00fdzkum\u016f, abychom si mohli b\u00fdt skute\u010dn\u011b jisti, zda se jedn\u00e1 o takto pozoruhodn\u00fd n\u00e1lez.<\/p>\n\n\n\n<p>Na tento \u00fakaz bychom mohli nahl\u00ed\u017eet o n\u011bco polopati\u010dt\u011bji, pokud by byl Mars alespo\u0148 lehce podobn\u00fd Zemi, co\u017e je bohu\u017eel daleko od pravdy. &#8222;Nejt\u011b\u017e\u0161\u00ed je opustit Zemi, zbavit se p\u0159edsudk\u016f, kter\u00e9 m\u00e1me, a skute\u010dn\u011b se pokusit proniknout do z\u00e1klad\u016f chemie, fyziky a environment\u00e1ln\u00edch proces\u016f na Marsu,&#8220; \u0159ekla astrobiolo\u017eka Jennifer L. Eigenbrodeov\u00e1, kter\u00e1 se rovn\u011b\u017e pod\u00edlela na v\u00fdzkumu. Andrew Steele, v\u00fdzkumn\u00edk pro Curiosity, dodal: &#8222;Definov\u00e1n\u00ed kolob\u011bhu uhl\u00edku na Marsu je naprosto kl\u00ed\u010dov\u00e9 pro pochopen\u00ed toho, jak by do tohoto kolob\u011bhu mohl zapadat \u017eivot.&#8220; &#8222;Na Zemi se n\u00e1m to poda\u0159ilo, ale na Marsu s definov\u00e1n\u00edm tohoto cyklu teprve za\u010d\u00edn\u00e1me,&#8220; \u0159ekl.<\/p>\n\n\n\n<p>Uhl\u00edk jako takov\u00fd se nach\u00e1z\u00ed ve v\u011bt\u0161in\u011b \u017eiv\u00fdch proces\u016f na Zemi, konkr\u00e9tn\u011b uhl\u00edk-12 preferuje mno\u017estv\u00ed \u017eiv\u00fdch bytost\u00ed k tr\u00e1ven\u00ed potravy \u010di fotosynt\u00e9ze, narozd\u00edl od t\u011b\u017e\u0161\u00edho uhl\u00edku-13, kter\u00fd byl na Marsu tak\u00e9 nalezen, ale v ni\u017e\u0161\u00edch hodnot\u00e1ch. Pom\u011br t\u011bchto izotop\u016f pom\u00e1h\u00e1 v\u011bdc\u016fm ur\u010dit, o jak\u00e9 \u00fakazy by se mohlo jednat, p\u0159\u00edpadn\u011b v jak\u00e9m prost\u0159ed\u00ed \u017eij\u00ed.<\/p>\n\n\n\n<p>V\u00fdzkumn\u00fd t\u00fdm p\u0159i\u0161el s n\u011bkolika hypot\u00e9zami v\u00fdskytu, p\u0159i\u010dem\u017e v\u011bt\u0161ina z nich zahrnuje interakci n\u011bjak\u00e9 formy uhl\u00edku a ultrafialov\u00e9ho z\u00e1\u0159en\u00ed. Povrch Marsu od n\u011bj toti\u017e nen\u00ed chr\u00e1n\u011bn jako Zem\u011b, a tak je dost dob\u0159e mo\u017en\u00e9, \u017ee se do tamn\u00edho ovzdu\u0161\u00ed dostal nap\u0159. metan, kter\u00fd za pomoc\u00ed pr\u00e1v\u011b UV z\u00e1\u0159en\u00ed vytvo\u0159il nalezen\u00e9 uhl\u00edkov\u00e9 izotopy.<\/p>\n\n\n\n<p>Fotografie od u\u017eivatele <strong><a href=\"https:\/\/www.pexels.com\/cs-cz\/@murat-esibatir-156560?utm_content=attributionCopyText&amp;utm_medium=referral&amp;utm_source=pexels\">murat esibatir<\/a><\/strong> ze slu\u017eby <strong><a href=\"https:\/\/www.pexels.com\/cs-cz\/foto\/zena-zeme-vesmir-poust-4355348\/?utm_content=attributionCopyText&amp;utm_medium=referral&amp;utm_source=pexels\">Pexels<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>NASA p\u0159ed n\u011bkolika dny ozn\u00e1mila, \u017ee jejich vesm\u00edrn\u00e9 voz\u00edtko Curiosity nalezlo na Marsu neobvyklou koncentraci uhl\u00edku-12. Tento izotop je na Zemi spojov\u00e1n s biologick\u00fdmi procesy, tak\u017ee se nask\u00fdt\u00e1 mo\u017enost, \u017ee bude zanedlouho na Marsu objeven \u017eivot. Zat\u00edm se ale jedn\u00e1 pouze o anom\u00e1lii. &#8222;Na Marsu nach\u00e1z\u00edme v\u011bci, kter\u00e9 jsou l\u00e1kav\u011b zaj\u00edmav\u00e9, ale pot\u0159ebovali bychom v\u00edce [&hellip;]<\/p>\n","protected":false},"author":25,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"_breakdance_hide_in_design_set":false,"_breakdance_tags":"","footnotes":""},"categories":[49,51,46],"tags":[8],"class_list":["post-4586","post","type-post","status-publish","format-standard","hentry","category-ekologie","category-spolecnost","category-studentske-zpravodajstvi","tag-rodic-zak"],"acf":[],"_links":{"self":[{"href":"https:\/\/prahaskolska.200.solutions\/index.php?rest_route=\/wp\/v2\/posts\/4586","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prahaskolska.200.solutions\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prahaskolska.200.solutions\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prahaskolska.200.solutions\/index.php?rest_route=\/wp\/v2\/users\/25"}],"replies":[{"embeddable":true,"href":"https:\/\/prahaskolska.200.solutions\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4586"}],"version-history":[{"count":3,"href":"https:\/\/prahaskolska.200.solutions\/index.php?rest_route=\/wp\/v2\/posts\/4586\/revisions"}],"predecessor-version":[{"id":4590,"href":"https:\/\/prahaskolska.200.solutions\/index.php?rest_route=\/wp\/v2\/posts\/4586\/revisions\/4590"}],"wp:attachment":[{"href":"https:\/\/prahaskolska.200.solutions\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4586"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prahaskolska.200.solutions\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4586"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prahaskolska.200.solutions\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4586"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}