Daily Star<\/a>.<\/p>\nVedci sa zamerali na takzvan\u00e9 medzihviezdne objekty \u2013 teles\u00e1, ktor\u00e9 nepoch\u00e1dzaj\u00fa z na\u0161ej slne\u010dnej s\u00fastavy, ale putuj\u00fa vesm\u00edrom medzi hviezdami. Doteraz astron\u00f3movia potvrdili tri tak\u00e9to n\u00e1v\u0161tevy: \u02bbOumuamua, 2I\/Borisov a naposledy 3I\/ATLAS. Ich objavy uk\u00e1zali, \u017ee podobn\u00ed \u201evesm\u00edrni votrelci\u201c nie s\u00fa len teoretickou mo\u017enos\u0165ou.<\/p>\n
\u010casu by bolo ove\u013ea menej<\/p>\n
Na rozdiel od asteroidov obiehaj\u00facich okolo Slnka by sa medzihviezdny objekt mohol pohybova\u0165 mimoriadne vysokou r\u00fdchlos\u0165ou. Vedci upozor\u0148uj\u00fa, \u017ee by sme ho mohli objavi\u0165 a\u017e kr\u00e1tko pred pribl\u00ed\u017een\u00edm k Zemi.<\/p>\n
To by v\u00fdrazne skomplikovalo ak\u00fdko\u013evek pokus o odklonenie jeho dr\u00e1hy. K\u00fdm pri zn\u00e1mych asteroidoch maj\u00fa astron\u00f3movia \u010dasto roky na v\u00fdpo\u010dty a pr\u00edpravu, pri takomto objekte by mohli ma\u0165 k dispoz\u00edcii len t\u00fd\u017edne alebo dokonca dni.<\/p>\n
DART by tentoraz nemusel sta\u010di\u0165<\/p>\n
V roku 2022 NASA \u00faspe\u0161ne otestovala misiu DART, pri ktorej sonda \u00famyselne narazila do asteroidu Dimorphos a zmenila jeho obe\u017en\u00fa dr\u00e1hu.<\/p>\n
Autori \u0161t\u00fadie v\u0161ak upozor\u0148uj\u00fa, \u017ee pri ve\u013emi r\u00fdchlom medzihviezdnom objekte by podobn\u00e1 misia nemusela by\u0165 uskuto\u010dnite\u013en\u00e1. Ak by vedci nemali dostatok \u010dasu na pr\u00edpravu, dne\u0161n\u00e9 technol\u00f3gie by jednoducho nemuseli stihn\u00fa\u0165 zasiahnu\u0165.<\/p>\n
Vedci uva\u017euj\u00fa aj o jadrovom rie\u0161en\u00ed<\/p>\n
\u0160t\u00fadia preto rozober\u00e1 aj mo\u017enosti, ktor\u00e9 dnes znej\u00fa sk\u00f4r ako zo science fiction. Jednou z nich je vyu\u017eitie jadrov\u00fdch technol\u00f3gi\u00ed na odklonenie alebo zni\u010denie nebezpe\u010dn\u00e9ho objektu.<\/p>\n
Autori z\u00e1rove\u0148 zd\u00f4raz\u0148uj\u00fa, \u017ee ide o teoretick\u00e9 \u00favahy. Pou\u017eitie jadrov\u00fdch zariaden\u00ed vo vesm\u00edre nar\u00e1\u017ea na technick\u00e9 aj medzin\u00e1rodnopr\u00e1vne prek\u00e1\u017eky a v s\u00fa\u010dasnosti neexistuje pripraven\u00fd syst\u00e9m, ktor\u00fd by bolo mo\u017en\u00e9 okam\u017eite nasadi\u0165.<\/p>\n
D\u00f4vod na paniku zatia\u013e neexistuje<\/p>\n
Vedci z\u00e1rove\u0148 upozor\u0148uj\u00fa, \u017ee nejde o varovanie pred konkr\u00e9tnym objektom smeruj\u00facim k Zemi.<\/p>\n
Naopak, v\u0161etky doteraz objaven\u00e9 medzihviezdne teles\u00e1 na\u0161u plan\u00e9tu bezpe\u010dne minuli. Aj kom\u00e9ta 3I\/ATLAS, ktor\u00e1 vzbudila ve\u013ek\u00fd z\u00e1ujem astron\u00f3mov, nepredstavovala pre Zem \u017eiadne nebezpe\u010denstvo.<\/p>\n
Cie\u013eom \u0161t\u00fadie je sk\u00f4r upozorni\u0165, \u017ee s prib\u00fadaj\u00facimi objavmi podobn\u00fdch objektov bude potrebn\u00e9 zlep\u0161ova\u0165 syst\u00e9my v\u010dasn\u00e9ho varovania a pripravi\u0165 sa aj na mimoriadne nepravdepodobn\u00e9 scen\u00e1re. Ako hovoria samotn\u00ed vedci, najlep\u0161ou obranou je objavi\u0165 potenci\u00e1lnu hrozbu \u010do najsk\u00f4r \u2013 e\u0161te sk\u00f4r, ne\u017e objav\u00ed ona n\u00e1s.<\/p>\n","protected":false},"excerpt":{"rendered":"LOND\u00ddN \u2013 \u013dudstvo dnes dok\u00e1\u017ee sledova\u0165 tis\u00edce asteroidov a v pr\u00edpade potreby ich mo\u017eno aj odkloni\u0165. Vedci v\u0161ak…\n","protected":false},"author":2,"featured_media":146282,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_share_on_mastodon":"0"},"categories":[32],"tags":[34,37,33,22732,43,40,39,42,41,36,5342,38,35,5343,2176,44626],"class_list":["post-146281","post","type-post","status-publish","format-standard","has-post-thumbnail","category-spravy","tag-headlines","tag-hlavne-spravy","tag-news","tag-objekt","tag-sk","tag-slovak","tag-slovakia","tag-slovencina","tag-slovensko","tag-spravy","tag-studia","tag-titulky","tag-top-stories","tag-vedci","tag-vesmir","tag-vysoka-rychlost"],"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@sk\/117066525869961111","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/posts\/146281","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/comments?post=146281"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/posts\/146281\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/media\/146282"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/media?parent=146281"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/categories?post=146281"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/tags?post=146281"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}