Nat\u00e1\u010den\u00ed nejv\u011bt\u0161\u00edho filmu v\u0161ech dob pr\u00e1v\u011b za\u010dalo. Ale ne v Los Angeles, ale v Chile. <\/p>\n
Observato\u0159 Vera Rubin je nyn\u00ed doko\u0159\u00e1n a skenuje ji\u017en\u00ed oblohu s chut\u00ed, kterou jsme nikdy p\u0159edt\u00edm nevid\u011bli. Tohle je \u010dasosb\u011brn\u00e9 focen\u00ed v m\u011b\u0159\u00edtku, ze kter\u00e9ho se v\u00e1m zato\u010d\u00ed hlava. Ka\u017ed\u00fdch p\u00e1r noc\u00ed provede teleskop kompletn\u00ed pr\u016fzkum cel\u00e9 viditeln\u00e9 polokoule a vytvo\u0159\u00ed nejdetailn\u011bj\u0161\u00ed historii zm\u011bn, jakou si dok\u00e1\u017eeme p\u0159edstavit. <\/p>\n
Ruby se p\u0159es noc nezapnula. Jeho 8,4metrov\u00e9 zrcadlo poprv\u00e9 spat\u0159ilo oblohu zhruba p\u0159ed rokem, na\u010de\u017e v\u011bdci dlouhou dobu nastavovali optiku se stejnou pe\u010dlivost\u00ed, s jakou se sna\u017e\u00ed vyrovnat ledovou desku p\u0159i zem\u011bt\u0159esen\u00ed. Nicm\u00e9n\u011b 30. \u010dervna byly instala\u010dn\u00ed pr\u00e1ce dokon\u010deny. Legacy Survey of Space and Time (LSST) za\u010dalo. Deset let. <\/p>\n
“P\u0159ipomn\u011blo mi to narozen\u00ed m\u00e9ho d\u00edt\u011bte.” P\u0159esn\u011b tak se vyj\u00e1d\u0159il Zeljko Ivevic, vedouc\u00ed t\u00fdmu LSST. “\u010cek\u00e1\u0161. \u010cek\u00e1\u0161 a nakonec se to zhmotn\u00ed.” Dv\u011b desetilet\u00ed pr\u00e1ce stla\u010den\u00e1 do jedn\u00e9 noci. Je p\u0159ekvapiv\u00e9, \u017ee c\u00edtil siln\u00e9 emoce? <\/p>\n
\nZa p\u011bt a\u017e sedm let budeme schopni rozli\u0161it dv\u011b hlavn\u00ed hypot\u00e9zy o temn\u00e9 energii. \u2014 Zeljko Ivevic<\/p>\n<\/blockquote>\n
Proto je to tak d\u016fle\u017eit\u00e9. <\/p>\n
** Rychlost zab\u00edj\u00ed. A otiskuje.**<\/p>\n
Kamera za cel\u00fdm t\u00edmto projektem byla vytvo\u0159ena v SLAC National Accelerator Laboratory. V\u00e1\u017e\u00ed n\u011bkolik tun, stoj\u00ed v\u00edc ne\u017e v\u00e1\u0161 d\u016fm a zhruba ka\u017ed\u00fdch \u010dty\u0159icet sekund vyfot\u00ed celou oblohu. 3200 megapixel\u016f. Ano, obr\u00e1zky jsou obrovsk\u00e9, ale skute\u010dn\u00fdm trikem je, kolik informac\u00ed dok\u00e1\u017ee Ruby zachytit najednou. Zorn\u00e9 pole dalekohledu je p\u0159ibli\u017en\u011b 100kr\u00e1t v\u011bt\u0161\u00ed ne\u017e u srovnateln\u00fdch analog\u016f a rychlost skenov\u00e1n\u00ed je stejn\u00e1 100kr\u00e1t vy\u0161\u0161\u00ed. <\/p>\n
Rubin shrom\u00e1\u017ed\u00ed mno\u017estv\u00ed dat, kter\u00e9 by jin\u00fdm observato\u0159\u00edm trvalo nashrom\u00e1\u017edit tis\u00edce let za deset let. <\/p>\n
Tato datov\u00e1 sada slou\u017e\u00ed specifick\u00e9mu \u00fa\u010delu: hledat, co se m\u011bn\u00ed. N\u00e1hl\u00e9 z\u00e1blesky sv\u011btla. Hv\u011bzdy, kter\u00e9 miz\u00ed bez zjevn\u00e9ho d\u016fvodu. Asteroidy prol\u00e9taj\u00edc\u00ed slune\u010dn\u00ed soustavou, n\u011bkter\u00e9 m\u00ed\u0159\u00ed p\u0159\u00edmo na n\u00e1s, jin\u00e9 m\u00edjej\u00ed. P\u0159edev\u0161\u00edm samoz\u0159ejm\u011b asteroidy, v\u010detn\u011b t\u011bch, kter\u00e9 n\u00e1s znepokojuj\u00ed, kdy\u017e vstoup\u00ed do oblasti vesm\u00edru nejbl\u00ed\u017ee Zemi<\/strong>. Ale hlavn\u00ed novinky zde nejsou o kamenech. <\/p>\n
Je to o temnot\u011b. <\/p>\n
** Energie duch\u016f.**<\/p>\n
V\u011bt\u0161ina vesm\u00edru nen\u00ed tvo\u0159ena v\u011bcmi, kter\u00fdch se m\u016f\u017eeme dotknout. Toto je temn\u00e1 hmota, kter\u00e1 dr\u017e\u00ed galaxie pohromad\u011b jako neviditeln\u00e9 lepidlo, a temn\u00e1 energie, kter\u00e1 odd\u011bluje samotn\u00fd prostor a urychluje expanzi. Americk\u00e1 n\u00e1rodn\u00ed v\u011bdeck\u00e1 nadace a americk\u00e9 ministerstvo energetiky nefinancovaly projekt Rubin kv\u016fli zdvo\u0159il\u00e9mu pozorov\u00e1n\u00ed hv\u011bzd. Poskytli finan\u010dn\u00ed prost\u0159edky na vy\u0159e\u0161en\u00ed velmi dlouhotrvaj\u00edc\u00edho sporu. <\/p>\n
Ivevich popisuje situaci jako rozcest\u00ed. <\/p>\n
Mo\u017enost A: Temn\u00e1 energie existuje p\u0159esn\u011b tak, jak si mysl\u00edme, \u017ee existuje. Je skute\u010dn\u00e1. D\u00edky tomu bude expanze prob\u00edhat rychleji a rychleji. Mo\u017enost B: Nic takov\u00e9ho neexistuje a na\u0161e ch\u00e1p\u00e1n\u00ed gravitace se jednodu\u0161e zhrout\u00ed, kdy\u017e se vzd\u00e1lenosti stanou nep\u0159edstaviteln\u011b obrovsk\u00fdmi. A\u0165 tak \u010di onak, budeme p\u0159episovat u\u010debnici, ale Rubin mus\u00ed zjistit, kter\u00e1 kapitola je spr\u00e1vn\u00e1. Pokud na to odpov\u00ed, LSST to nazve jejich nejz\u00e1sadn\u011bj\u0161\u00edm mo\u017en\u00fdm v\u00fdsledkem. <\/p>\n
Deset let, abychom na to p\u0159i\u0161li. Dalekohled pr\u00e1v\u011b ud\u011blal prvn\u00ed skute\u010dn\u00e9 kroky. \u010dek\u00e1me. Vid\u00edme, co miz\u00ed, co vzplane, co se sn\u00e1\u0161\u00ed do zorn\u00e9ho pole a zda gravitace byla skute\u010dn\u011b takov\u00e1, jakou jsme si mysleli. Obloha nestoj\u00ed.<\/p>\n","protected":false},"excerpt":{"rendered":"
Nat\u00e1\u010den\u00ed nejv\u011bt\u0161\u00edho filmu v\u0161ech dob pr\u00e1v\u011b za\u010dalo. Ale ne v Los Angeles, ale v Chile. Observato\u0159 Vera Rubin je nyn\u00ed doko\u0159\u00e1n a skenuje ji\u017en\u00ed oblohu s chut\u00ed, kterou jsme nikdy p\u0159edt\u00edm nevid\u011bli. Tohle je \u010dasosb\u011brn\u00e9 focen\u00ed v m\u011b\u0159\u00edtku, ze kter\u00e9ho se v\u00e1m zato\u010d\u00ed hlava. Ka\u017ed\u00fdch p\u00e1r noc\u00ed provede teleskop kompletn\u00ed pr\u016fzkum cel\u00e9 viditeln\u00e9 polokoule a […]<\/p>\n","protected":false},"author":1,"featured_media":7862,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"tdm_status":"","tdm_grid_status":""},"categories":[1],"tags":[],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/posts\/7863"}],"collection":[{"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/comments?post=7863"}],"version-history":[{"count":0,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/posts\/7863\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/media\/7862"}],"wp:attachment":[{"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/media?parent=7863"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/categories?post=7863"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/tags?post=7863"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}