{"id":19986,"date":"2021-11-21T13:45:32","date_gmt":"2021-11-21T13:45:32","guid":{"rendered":"https:\/\/extraslovensko.sk\/spravy\/?p=19986"},"modified":"2021-11-21T13:45:32","modified_gmt":"2021-11-21T13:45:32","slug":"double-asteroid-redirection-test-misia-dart","status":"publish","type":"post","link":"https:\/\/extraslovensko.sk\/spravy\/double-asteroid-redirection-test-misia-dart\/","title":{"rendered":"Ochrana Zeme pred asteroidmi, Misia DART, Double Asteroid Redirection Test, Dimorphos, Didymos"},"content":{"rendered":"

Test ochrany Zeme pred asteroidom, misia DART. Kozmick\u00e1 lo\u010f NASA naraz\u00ed do asteroidu v prvom teste planet\u00e1rnej obrany. Cie\u013eom misie DART je narazi\u0165 do asteroidu Dimorphos. NASA sa chyst\u00e1 vypusti\u0165 vesm\u00edrnu lo\u010f v hodnote nieko\u013ek\u00fdch mili\u00f3nov dol\u00e1rov a narazi\u0165 ju na asteroid. Sk\u00f4r ne\u017e o katastrofick\u00fa chybu v\u0161ak p\u00f4jde o prv\u00fd test sp\u00f4sobu, ako ochr\u00e1ni\u0165 Zem pred vra\u017eedn\u00fdm asteroidmi.<\/p>\n

Ochrana Zeme, misia DART pred asteroidmi<\/h1>\n

Asteroid, na ktor\u00fd NASA nar\u00e1\u017ea, naz\u00fdvan\u00fd Dimorphos, nie je pre Zem hrozbou. Vedci v\u0161ak chc\u00fa zisti\u0165, \u010di dok\u00e1\u017eu zmeni\u0165 jeho trajekt\u00f3riu, dlho predt\u00fdm, ne\u017e bud\u00fa musie\u0165 pou\u017ei\u0165 tak\u00fato strat\u00e9giu na odklonenie skuto\u010dne nebezpe\u010dn\u00e9ho asteroidu.
\n\"Double
\n\u201ePravdepodobnos\u0165, \u017ee nie\u010do dostato\u010dne ve\u013ek\u00e9 na to, aby to bol probl\u00e9m, \u010do by sme museli odchy\u013eova\u0165, je v na\u0161ich \u017eivotoch dos\u0165 mal\u00e1,\u201c hovor\u00ed Andy Rivkin, planet\u00e1rny vedec z Laborat\u00f3ria aplikovanej fyziky Univerzity Johna Hopkinsa (JHU-APL) v Laurel. Maryland, ktor\u00fd postavil kozmick\u00fa lo\u010f pre NASA. “Ale niekedy sa va\u0161e \u010d\u00edslo objav\u00ed, ke\u010f ho neo\u010dak\u00e1vate a je dobr\u00e9 ma\u0165 uzatvoren\u00fa poistku.”<\/p>\n

Sonda m\u00e1 od\u0161tartova\u0165 z Kalifornie 23. novembra a vol\u00e1 sa Double Asteroid Redirection Test (DART). Jeho cie\u013eom je dvojica asteroidov, ktor\u00e9 spolu cestuj\u00fa vesm\u00edrom, pri\u010dom jeden obieha okolo druh\u00e9ho, ke\u010f obiehaj\u00fa okolo Slnk. Dimorphos, men\u0161\u00ed z dvoch so \u0161\u00edrkou 160 metrov, obieha okolo Didymos, ktor\u00fd je takmer 5-kr\u00e1t v\u00e4\u010d\u0161\u00ed a je pomenovan\u00fd pod\u013ea gr\u00e9ckeho slova pre \u201edvoj\u010da\u201c.<\/p>\n

Kozmick\u00e1 lo\u010f NASA, Dimorphos, Didymos, Double Asteroid Redirection Test<\/h1>\n

Ak sa DART \u00faspe\u0161ne spust\u00ed, koncom septembra alebo za\u010diatkom okt\u00f3bra bud\u00faceho roka bezhlavo naraz\u00ed na Dimorphos r\u00fdchlos\u0165ou 6,6 kilometra za sekundu. N\u00e1raz by mal zmen\u0161i\u0165 obe\u017en\u00fa dr\u00e1hu Dimorphosu tak, aby obi\u0161iel Didymos aspo\u0148 o 73 sek\u00fand r\u00fdchlej\u0161ie ako predt\u00fdm. Astron\u00f3movia pou\u017e\u00edvaj\u00faci teleskopy na Zemi bud\u00fa sledova\u0165 Didymos, aby zistil zn\u00e1mky tejto zmeny obe\u017enej dr\u00e1hy, \u010do by bolo evidentn\u00e9 v sp\u00f4sobe, ak\u00fdm sa men\u00ed jeho jas v priebehu \u010dasu, ke\u010f Dimorphos prech\u00e1dza pred n\u00edm a za n\u00edm.<\/p>\n

T\u00e1to komplikovan\u00e1 choreografia m\u00e1 otestova\u0165 my\u0161lienku, \u017ee n\u00e1raz do asteroidu ho m\u00f4\u017ee dostato\u010dne postr\u010di\u0165, aby nenarazil na Zem, hovor\u00ed Nancy Chabotov\u00e1, planet\u00e1rna vedky\u0148a z JHU-APL, ktor\u00e1 pracuje na misii. Pou\u017eitie neohrozen\u00e9ho p\u00e1ru Dimorphos a Didymos je \u201enaozaj inteligentn\u00fd a bezpe\u010dn\u00fd sp\u00f4sob, ako urobi\u0165 tento prv\u00fd test\u201c, hovor\u00ed. K n\u00e1razu d\u00f4jde, ke\u010f bud\u00fa asteroidy 11 mili\u00f3nov kilometrov od Zeme.<\/p>\n

Boj s asteroidom<\/h2>\n

Mal\u00e9 asteroidy a \u00falomky asteroidov dopadaj\u00fa na Zem neust\u00e1le, ale v\u00e4\u010d\u0161ina z nich sa rozpadne v atmosf\u00e9re alebo padne ne\u0161kodne na zem ako meteority. NASA identifikovala viac ako 27 000 asteroidov s dr\u00e1hami, ktor\u00e9 ich pribli\u017euj\u00fa k Zemi. Ob\u00e1va sa, \u017ee by sa mohol objavi\u0165 nejak\u00fd nov\u00fd asteroid smeruj\u00faci priamo k plan\u00e9te a \u017ee by bol dostato\u010dne ve\u013ek\u00fd na to, aby sp\u00f4sobil v\u00e1\u017ene n\u00e1sledky pri dopade, rovnako ako v pr\u00edpade asteroidu, ktor\u00fd pomohol vyhubi\u0165 dinosaurov a \u010fal\u0161\u00ed \u017eivot na Zemi 66 mili\u00f3nom pred rokmi.<\/p>\n

Vesm\u00edrni vedci podnietili v\u0161etky druhy n\u00e1padov na boj s prich\u00e1dzaj\u00facimi asteroidmi, z ktor\u00fdch najdramatickej\u0161\u00ed zah\u0155\u0148a ich odp\u00e1lenie jadrov\u00fdmi zbra\u0148ami. In\u00e9, pre kinematografiu menej hodnotn\u00e9 strat\u00e9gie, zah\u0155\u0148aj\u00fa zmenu trajekt\u00f3rie asteroidu letom s kozmickou lo\u010fou ved\u013ea neho, aby ho \u0165ahali pomocou gravita\u010dn\u00fdch s\u00edl, alebo do neho narazili, ako to urob\u00ed misia DART za 330 mili\u00f3nov USD.<\/p>\n

z\u00e1vislosti od uhla, pod ktor\u00fdm DART zasiahne asteroid, m\u00f4\u017ee zdvihn\u00fa\u0165 mal\u00fd oblak prachu a sut\u00edn. N\u00e1raz pravdepodobne zanech\u00e1 kr\u00e1ter, ktor\u00fd by mohol ma\u0165 priemer pribli\u017ene 10 metrov. V rovnakom \u010dase sa k\u00fasky trosiek kozmickej lode m\u00f4\u017eu rozpt\u00fdli\u0165 po povrchu asteroidu, ale ako presne sa DART rozpadne, sa e\u0161te len uvid\u00ed. “Len z \u010dist\u00e9ho pocitu z miesta \u010dinu je na to ve\u013ea z n\u00e1s zvedav\u00fdch,” hovor\u00ed Rivkin.<\/p>\n

V\u00fdskumn\u00edci bud\u00fa ma\u0165 \u0161ancu z\u00edska\u0165 odpovede, preto\u017ee o p\u00e1r min\u00fat nesk\u00f4r prilet\u00ed mal\u00e1 sonda financovan\u00e1 Talianskou vesm\u00edrnou agent\u00farou, aby odfotografovala n\u00e1sledky. S n\u00e1zvom LICIACube bude cestova\u0165 na palube DART a ide o prv\u00fa auton\u00f3mne riaden\u00fa misiu do hlbok\u00e9ho vesm\u00edru. LICIACube bude uvo\u013enen\u00fd z DART 10 dn\u00ed pred dopadom a dostane sa do 55 kilometrov od Dimorphosu. Ke\u010f prelet\u00ed okolo, jeho kamery by mali zaznamena\u0165 oblak prachu, ak ho n\u00e1raz vykopne, a mo\u017eno aj v\u00fdsledn\u00fd kr\u00e1ter. “Mo\u017eno n\u00e1s prekvapia obr\u00e1zky, ktor\u00e9 zhroma\u017e\u010fujeme,” hovor\u00ed Elisabetta Dotto, astron\u00f3mka z N\u00e1rodn\u00e9ho in\u0161tit\u00fatu pre astrofyziku v R\u00edme, ktor\u00fd vedie spolupr\u00e1cu talianskych univerz\u00edt a in\u0161tit\u00faci\u00ed zapojen\u00fdch do LICIACube.<\/p>\n

V roku 2026 nav\u0161t\u00edvi Dimorphos nadv\u00e4zuj\u00faca kozmick\u00e1 lo\u010f, misia Hera Eur\u00f3pskej vesm\u00edrnej agent\u00fary, aby urobila podrobnej\u0161ie sn\u00edmky miesta dopadu.<\/p><\/blockquote>\n

\n

Tento spr\u00e1va ve\u013emi bodla, lebo m\u00e1 v na\u0161ej online farnosti, poradov\u00e9 \u010d\u00edslo 777!!<\/p>\n

Order Out Of Chaos in Jewish Gematria equals: 777
\nRoslyn Chapel in Jewish Gematria equals: 777<\/p><\/blockquote>\n

A nie neonacistick\u00e9 uhr\u00edkov\u00e9 a schlos\u00e1rove NAZI triskele!<\/p>\n

\u0160koda, \u017ee t\u00e1 sonda sa nevol\u00e1 Darth Putin, na po\u010des\u0165 najv\u00e4\u010d\u0161ieho m\u00e1ga na Tweetri \ud83d\ude42<\/p>\n","protected":false},"excerpt":{"rendered":"

Test ochrany Zeme pred asteroidom, misia DART. Kozmick\u00e1 lo\u010f NASA naraz\u00ed do asteroidu v prvom teste planet\u00e1rnej obrany. Cie\u013eom misie DART je narazi\u0165 do asteroidu Dimorphos. NASA sa chyst\u00e1 vypusti\u0165 vesm\u00edrnu lo\u010f v hodnote nieko\u013ek\u00fdch mili\u00f3nov dol\u00e1rov a narazi\u0165 ju na asteroid. Sk\u00f4r ne\u017e o katastrofick\u00fa chybu v\u0161ak p\u00f4jde o prv\u00fd test sp\u00f4sobu, ako ochr\u00e1ni\u0165 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-19986","post","type-post","status-publish","format-standard","hentry","category-exo-news"],"_links":{"self":[{"href":"https:\/\/extraslovensko.sk\/spravy\/wp-json\/wp\/v2\/posts\/19986","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/extraslovensko.sk\/spravy\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/extraslovensko.sk\/spravy\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/extraslovensko.sk\/spravy\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/extraslovensko.sk\/spravy\/wp-json\/wp\/v2\/comments?post=19986"}],"version-history":[{"count":0,"href":"https:\/\/extraslovensko.sk\/spravy\/wp-json\/wp\/v2\/posts\/19986\/revisions"}],"wp:attachment":[{"href":"https:\/\/extraslovensko.sk\/spravy\/wp-json\/wp\/v2\/media?parent=19986"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/extraslovensko.sk\/spravy\/wp-json\/wp\/v2\/categories?post=19986"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/extraslovensko.sk\/spravy\/wp-json\/wp\/v2\/tags?post=19986"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}