{"id":4912,"date":"2025-09-27T07:04:09","date_gmt":"2025-09-27T07:04:09","guid":{"rendered":"https:\/\/www.europesays.com\/lt\/4912\/"},"modified":"2025-09-27T07:04:09","modified_gmt":"2025-09-27T07:04:09","slug":"galimas-smugis-i-menuli-nasa-ispeja-del-gresmingai-artejancio-asteroido-sis-smugis-gali-baigtis-katastrofa","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/lt\/4912\/","title":{"rendered":"Galimas sm\u016bgis \u012f M\u0117nul\u012f: NASA \u012fsp\u0117ja d\u0117l gr\u0117smingai art\u0117jan\u010dio asteroido, \u0161is sm\u016bgis gali baigtis katastrofa"},"content":{"rendered":"

NASA mokslininkai vis da\u017eniau svarsto \u012fvairius scenarijus kaip apsaugoti m\u016bs\u0173 artimiausi\u0105 kosmin\u012f kaimyn\u0105 M\u0117nul\u012f nuo galim\u0173 pavoj\u0173. Vienas j\u0173 yra asteroidas \u201e2024 YR4\u201c kuris atrastas visai neseniai suk\u0117l\u0117 nema\u017e\u0105 s\u0105my\u0161\u012f.\u00a0<\/p>\n

Nors prad\u017eioje buvo manoma kad jis gali kelti gr\u0117sm\u0119 \u017demei, naujausi skai\u010diavimai rodo didesn\u0119 tikimyb\u0119 jog pavojus gresia b\u016btent M\u0117nuliui. Jeigu \u201e2024 YR4\u201c tikrai atsitrenkt\u0173 \u012f M\u0117nul\u012f pasekm\u0117s b\u016bt\u0173 juntamos ir m\u016bs\u0173 planetoje.\u00a0<\/p>\n

Did\u017eiulis nuolau\u017e\u0173 laukas gal\u0117t\u0173 padidinti mikrometeorit\u0173 kiek\u012f iki t\u016bkstan\u010dio kart\u0173 palyginti su \u012fprastu fonu. Tai reik\u0161t\u0173 pavoj\u0173 palydovams, kosmin\u0117ms stotims ir astronautams, nors pats sm\u016bgis \u017dem\u0117s pavir\u0161iaus tiesiogiai nepasiekt\u0173.<\/p>\n

\"\"\/<\/p>\n

Artimiausiais metais bus tikslinami skai\u010diavimai ir sprend\u017eiama ar reikia ruo\u0161tis realiam veiksmui. Tam mokslininkai jau svarsto galimas misijas ir technologijas. Pagrindin\u0117s kryptys yra dvi \u201easteroido trajektorijos pakeitimas\u201c arba \u201ejo visi\u0161kas sunaikinimas\u201c, priklausomai nuo to k\u0105 leis technologin\u0117s galimyb\u0117s ir laikas.<\/p>\n

Nukreipimo galimyb\u0117s<\/p>\n

\u201eNukreipimas\u201c laikomas saugesniu b\u016bdu nes u\u017etekt\u0173 nedidelio post\u016bmio kad asteroidas prasilenkt\u0173 tiek su \u017deme tiek su M\u0117nuliu. Kuo anks\u010diau toks veiksmas b\u016bt\u0173 atliktas tuo ma\u017eesn\u0117s energijos reik\u0117t\u0173. Ta\u010diau tam b\u016btina tiksliai \u017einoti asteroido mas\u0119 o tai sud\u0117tinga nustatyti i\u0161 tolo.<\/p>\n

\u012evertinti svor\u012f planuojama pasitelkus \u017evalgybines misijas arba pritaikant jau egzistuojan\u010dius kosmoso projektus. Svarstoma pasinaudoti tokiais aparatais kaip \u201eOSIRIS APEX\u201c ar \u201ePsyche\u201c kurie keliauja kit\u0173 taikini\u0173 link. Visgi tokiu atveju reik\u0117t\u0173 atsisakyti j\u0173 pirmini\u0173 tiksl\u0173 tod\u0117l tai kelia daug diskusij\u0173.<\/p>\n

Tiksliausi duomenys apie mas\u0119 leist\u0173 tinkamai apskai\u010diuoti reikiam\u0105 impuls\u0105. Jei skai\u010diavimai b\u016bt\u0173 netiksl\u016bs egzistuoja rizika kad asteroidas gal\u0117t\u0173 b\u016bti nety\u010dia nukreiptas link \u017dem\u0117s. D\u0117l \u0161ios prie\u017easties mokslininkai labai atsargiai vertina \u0161\u012f metod\u0105 ir ie\u0161ko atsargini\u0173 sprendim\u0173.<\/p>\n

Sunaikinimo scenarijai<\/p>\n

Jei \u201enukreipimas\u201c nepavykt\u0173 svarstoma galimyb\u0117 \u201esunaikinti asteroid\u0105\u201c padalijant j\u012f \u012f ma\u017eesnes dalis. Viena i\u0161eitis yra \u201ekinetinis sm\u016bgis\u201c kai \u012f objekt\u0105 atsitrenkia pakankamai didelis aparatas. Tokiu b\u016bdu asteroidas suskyla \u012f ma\u017eesnius gabalus kurie nebeb\u016bt\u0173 tokie pavojingi.<\/p>\n

Kita alternatyva yra \u201ebranduolinis sprogimas\u201c kuris gal\u0117t\u0173 visi\u0161kai sutrikdyti asteroido strukt\u016br\u0105. Skai\u010diavimai rodo kad pakakt\u0173 vieno megatono u\u017etaiso kad \u201e2024 YR4\u201c b\u016bt\u0173 neutralizuotas. Nors kosmose tokie bandymai dar n\u0117ra atlikti fizikos d\u0117sniai rodo jog tai \u012fmanoma.<\/p>\n

Galutinis sprendimas priklausys nuo steb\u0117jim\u0173 kurie paai\u0161k\u0117s iki 2028 met\u0173. Jei rizika i\u0161liks reali NASA kartu su kitais tyr\u0117jais tur\u0117s priimti sprendim\u0105 kaip u\u017etikrinti M\u0117nulio ir \u017dem\u0117s saugum\u0105. Kol kas lieka tik ruo\u0161tis \u012fvairiems scenarijams ir steb\u0117ti asteroido jud\u0117jim\u0105.<\/p>\n","protected":false},"excerpt":{"rendered":"NASA mokslininkai vis da\u017eniau svarsto \u012fvairius scenarijus kaip apsaugoti m\u016bs\u0173 artimiausi\u0105 kosmin\u012f kaimyn\u0105 M\u0117nul\u012f nuo galim\u0173 pavoj\u0173. Vienas…\n","protected":false},"author":2,"featured_media":4913,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[25,2279,2280,2281,30,31,1236,34,35,441,2277,2278,24,2020,1552,32,33,37,39,36,38,40,2276,2260,23,22,28,29,1357,2275,26,27],"class_list":{"0":"post-4912","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-antrastes","8":"tag-antrastes","9":"tag-artejancio","10":"tag-asteroido","11":"tag-baigtis","12":"tag-breaking-news","13":"tag-breakingnews","14":"tag-del","15":"tag-featured-news","16":"tag-featurednews","17":"tag-gali","18":"tag-galimas","19":"tag-gresmingai","20":"tag-headlines","21":"tag-ispeja","22":"tag-katastrofa","23":"tag-latest-news","24":"tag-latestnews","25":"tag-lietuva","26":"tag-lietuviu","27":"tag-lithuania","28":"tag-lithuanian","29":"tag-lt","30":"tag-menuli","31":"tag-nasa","32":"tag-naujienos","33":"tag-news","34":"tag-populiariausios-naujienos","35":"tag-populiariausiosnaujienos","36":"tag-sis","37":"tag-smugis","38":"tag-top-stories","39":"tag-topstories"},"share_on_mastodon":{"url":"","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/posts\/4912","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/comments?post=4912"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/posts\/4912\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/media\/4913"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/media?parent=4912"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/categories?post=4912"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/tags?post=4912"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}