{"id":8654,"date":"2024-01-19T00:00:00","date_gmt":"2024-01-18T23:00:00","guid":{"rendered":"https:\/\/instrid.sk\/uncategorized\/vedcov-potrapili-zaseknute-skrutky-nakoniec-sa-dostali-ku-zvysku-vzorky-z-asteroidu-bennu\/"},"modified":"2024-01-19T00:00:00","modified_gmt":"2024-01-18T23:00:00","slug":"vedcov-potrapili-zaseknute-skrutky-nakoniec-sa-dostali-ku-zvysku-vzorky-z-asteroidu-bennu","status":"publish","type":"post","link":"https:\/\/instrid.sk\/en\/archiv\/vedcov-potrapili-zaseknute-skrutky-nakoniec-sa-dostali-ku-zvysku-vzorky-z-asteroidu-bennu\/","title":{"rendered":"Vedcov potr\u00e1pili zaseknut\u00e9 skrutky. Nakoniec sa dostali k zvy\u0161ku vzorky z asteroidu Bennu"},"content":{"rendered":"<p>Vesm\u00edrne misie be\u017ene trvaj\u00fa od nieko\u013ek\u00fdch mesiacoch do nieko\u013ek\u00fdch rokov, pri\u010dom existuje viacero d\u00f4vod, ktor\u00e9 stoja za dlhou dobou trvania. E\u0161te pred jej za\u010dat\u00edm, musia vedci v\u0161etko d\u00f4kladne napl\u00e1nova\u0165, <strong>aby nedo\u0161lo k\u00a0pochybeniu<\/strong>, ktor\u00fd by mohlo ohrozi\u0165 v\u00fdskum.<\/p>\n<p>D\u00f4le\u017eit\u00fd faktor v\u0161ak predstavuje samotn\u00fd vesm\u00edr, respekt\u00edve jeho neuverite\u013en\u00e1 ve\u013ekos\u0165. Ak\u00e1ko\u013evek misia, ktor\u00e1 si d\u00e1 za cie\u013e prenikn\u00fa\u0165 hlb\u0161ie do nepoznan\u00e9ho priestoru, zaberie ve\u013ek\u00e9 mno\u017estvo \u010dasu, o\u00a0\u010dom vie aj<strong> t\u00edm NASA pre misiu OSIRIS-REx<\/strong>.<\/p>\n<p>O\u00a0priebehu a\u00a0v\u00fdsledku misie sme v\u00e1s informovali v\u00a0predch\u00e1dzaj\u00facom \u010dl\u00e1nku. T\u00e1to vesm\u00edrna misia sa <strong>\u00faspe\u0161ne ukon\u010dila 24. septembra<\/strong>, ke\u010f kapsula obsahuj\u00faca vzorky z\u00a0asteroidu Bennu <strong>prist\u00e1la na p\u00fa\u0161ti v\u00a0americkom \u0161t\u00e1te Utah<\/strong>.<\/p>\n<p>Pr\u00e1ca na projekte v\u0161ak neskon\u010dila ani po prevezen\u00ed kapsule do laborat\u00f3ria NASA v\u00a0\u0161t\u00e1te Texas, ke\u010f\u017ee vedci sa dostali iba ku \u010dasti vzorky. <strong>Zvy\u0161ok zostal zaseknut\u00fd v\u00a0n\u00e1dobe<\/strong>. T\u00fa sa im podarilo otvori\u0165 a\u017e po troch mesiacoch, o\u00a0\u010dom informovala pr\u00e1ve NASA prostredn\u00edctvom blogu.<\/p>\n<h3>Pr\u00edsne pravidl\u00e1<\/h3>\n<p>Vzorky sa nach\u00e1dzaj\u00fa v\u00a0zariaden\u00ed Touch-and-Go Sample Acquisition Mechanism, ktor\u00e9 umo\u017enilo ich zozbieranie. Na to, aby sa vedci dostali k\u00a0vn\u00fatornej n\u00e1dobe, museli odskrutkova\u0165 a\u017e 35 skrutiek, no <strong>dve z nich sa stali\u00a0<\/strong><b>probl\u00e9mov\u00fdmi<\/b>.<\/p>\n Pravdepodobnos\u0165, \u017ee v roku 2182 naraz\u00ed asteroid Bennu do Zeme je len 1 ku 2700. Zdroj: unsplash.com\/@nuvaproductions\n<p>Ke\u010f\u017ee ide o\u00a0ve\u013emi vz\u00e1cnu vzorku z\u00a0vesm\u00edru, vedci museli postupova\u0165 pod\u013ea protokolov, <strong>aby ju omylom nekontaminovali<\/strong>. Zariadenie TAGSAM preto museli otv\u00e1ra\u0165 v\u00a0ochrannej schr\u00e1nke, kde <strong>mohli pou\u017ei\u0165 iba predom schv\u00e1len\u00e9 n\u00e1stroje<\/strong>, uv\u00e1dza port\u00e1l CNN.<\/p>\n<p>Vzh\u013eadom na prvotn\u00fd ne\u00faspech, museli vytvori\u0165 nov\u00e9 n\u00e1stroje, ktor\u00e9 by im umo\u017enili odstr\u00e1ni\u0165 probl\u00e9mov\u00e9 skrutky. Podobne ako predch\u00e1dzaj\u00face n\u00e1stroje, aj tieto <strong>vznikli pod drobnoh\u013eadom organiz\u00e1cie<\/strong>, \u010do potvrdila aj kur\u00e1torka misie Nicole Lunningov\u00e1.<\/p>\n<p>Pre blog NASA povedala: <em>\u201eOkrem kon\u0161truk\u010dn\u00e9ho probl\u00e9mu, ktor\u00fd spo\u010d\u00edval v obmedzen\u00ed na materi\u00e1ly schv\u00e1len\u00e9 kur\u00e1torom na ochranu vedeckej hodnoty vzorky asteroidu, museli tieto nov\u00e9 n\u00e1stroje fungova\u0165 aj v \u00fazko ohrani\u010denom priestore ochrann\u00e9ho krytu, \u010do obmedzovalo ich v\u00fd\u0161ku, hmotnos\u0165 a potenci\u00e1lny obl\u00fakov\u00fd pohyb.\u201c<\/em><\/p>\n<h3>M\u00f4\u017eu pokra\u010dova\u0165 v demont\u00e1\u017ei<\/h3>\n<p>Dva novovzniknut\u00e9 viacdielne n\u00e1stroje, vr\u00e1tane na mieru vyroben\u00fdch bitov, vyrobili zo \u0161pecifickej triedy chirurgickej ocele. Ide o\u00a0materi\u00e1l s\u00a0<strong>najvy\u0161\u0161ou povolenou tvrdos\u0165ou, ktor\u00fd je z\u00e1rove\u0148 nehrdzav\u00fd a\u00a0nemagnetick\u00fd<\/strong>, informuje port\u00e1l Space.com.<\/p>\n<p>Av\u0161ak e\u0161te predt\u00fdm, ako ich mohli pou\u017ei\u0165 na odstr\u00e1nenie skrutiek, museli ich otestova\u0165. V sk\u00fa\u0161obnom laborat\u00f3riu replikovali \u00falohu, ktor\u00fa vykonaj\u00fa na zariaden\u00ed. P<strong>o ka\u017edom \u00faspe\u0161nom pokuse zv\u00fd\u0161ili intenzitu kr\u00fatiaceho momentu<\/strong>, aby sa uistili, \u017ee bude fungova\u0165.<\/p>\n<p>https:\/\/www.youtube.com\/watch?v=clmH4Kfjdro<\/p>\n<p><em>\u201eKur\u00e1torsk\u00fd t\u00edm preuk\u00e1zal p\u00f4sobiv\u00fa odolnos\u0165 a odviedol neuverite\u013en\u00fa pr\u00e1cu, aby tieto tvrdohlav\u00e9 skrutky dostal z hlavice TAGSAM a my sme mohli pokra\u010dova\u0165 v demont\u00e1\u017ei. Z \u00faspechu m\u00e1me obrovsk\u00fa rados\u0165,\u201c<\/em> uviedla kur\u00e1torka Lunningov\u00e1.<\/p>\n<p>Port\u00e1l Live Science uv\u00e1dza, \u017ee po \u00faspe\u0161nom odstr\u00e1nen\u00ed skrutiek m\u00f4\u017eu pokra\u010dova\u0165 v \u201enieko\u013ek\u00fdch \u010fal\u0161\u00edch krokoch demont\u00e1\u017ee<em>.<\/em>\u201c Ke\u010f sa im podar\u00ed dosta\u0165 do vn\u00fatornej n\u00e1doby, <strong>vzorky odfotografuj\u00fa, vyjm\u00fa, odv\u00e1\u017eia a\u00a0spracuj\u00fa na \u010fal\u0161\u00ed v\u00fdskum<\/strong>.<\/p>\n<h3>V\u00fdsledky e\u0161te len prinesie<\/h3>\n<p>V\u00a0o\u010diach \u00faradu bola misia \u00faspe\u0161n\u00e1 e\u0161te predt\u00fdm ne\u017e sa dostali do vn\u00fatornej n\u00e1doby, preto\u017ee e\u0161te v\u00a0okt\u00f3bri minul\u00e9ho roku pozbierali pribli\u017ene 70 gramov vzorky. P\u00f4vodne chceli z\u00edska\u0165 aspo\u0148 60 gramov, no celkov\u00e1 hmotnos\u0165 vzorky by mohla <strong>presiahnu\u0165 hmotnos\u0165 250 gramov<\/strong>.<\/p>\n<p>\u201ePrv\u00e1 anal\u00fdza uk\u00e1zala, \u017ee vzorky obsahuj\u00fa ve\u013ek\u00e9 mno\u017estvo vody vo forme hydratovan\u00fdch \u00edlov\u00fdch miner\u00e1lov a obsahuj\u00fa uhl\u00edk vo forme miner\u00e1lov aj organick\u00fdch molek\u00fal,\u201c povedal riadite\u013e NASA Bill Nelson o\u00a0prvej v\u00e1rke horniny z\u00a0asteroidu po\u010das \u017eiv\u00e9ho vysielania \u00faradu.<\/p>\n<p>Vzh\u013eadom na zriedkav\u00fa pr\u00edtomnos\u0165 vody mimo plan\u00e9ty Zem boli v\u00fdsledky anal\u00fdzy obzvl\u00e1\u0161\u0165 zauj\u00edmav\u00e9 pre vedcov. T\u00fato \u010das\u0165 vzorky sa\u00a0 preto rozhodli <strong>hermeticky uzavrie\u0165<\/strong>, <strong>aby ju dok\u00e1zali uchova\u0165 po\u010das nieko\u013ek\u00fdch desa\u0165ro\u010d\u00ed<\/strong>, pri\u010dom niektor\u00e9 z nich udr\u017eiavaj\u00fa pri extr\u00e9mnom chlade.<\/p>\n<p>Aj v\u010faka zisteniam z\u00a0anal\u00fdzy predo\u0161lej v\u00e1rky vzorky vyvol\u00e1va doteraz neviden\u00e1 \u010das\u0165 <strong>ur\u010dit\u00fa mieru fascin\u00e1cie<\/strong>. Ved\u00faca oddelenia ARES Eileen Strasberyov\u00e1 po odstr\u00e1nen\u00ed skrutiek pre blog \u00faradu povedala: <em>\u201eInov\u00e1cie a odhodlanie tohto t\u00edmu s\u00fa pozoruhodn\u00e9. V\u0161etci sa te\u0161\u00edme na to, ak\u00fd poklad e\u0161te OSIRIS-REx ukr\u00fdva.\u201c<\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>Vesm\u00edrne misie be\u017ene trvaj\u00fa od nieko\u013ek\u00fdch mesiacoch do nieko\u013ek\u00fdch rokov, pri\u010dom existuje viacero d\u00f4vod, ktor\u00e9 stoja za dlhou dobou trvania. E\u0161te pred jej za\u010dat\u00edm, musia<\/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-8654","post","type-post","status-publish","format-standard","hentry","category-archiv","two-columns"],"_links":{"self":[{"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/posts\/8654","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=8654"}],"version-history":[{"count":0,"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/posts\/8654\/revisions"}],"wp:attachment":[{"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/media?parent=8654"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/categories?post=8654"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/tags?post=8654"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}