{"id":14219,"date":"2025-10-09T20:24:11","date_gmt":"2025-10-09T20:24:11","guid":{"rendered":"https:\/\/www.europesays.com\/lt\/14219\/"},"modified":"2025-10-09T20:24:11","modified_gmt":"2025-10-09T20:24:11","slug":"paskelbe-visatos-mirties-data-mokslininkai-pasake-kiek-metu-liko-visai-zmonijai-arteja-pabaiga","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/lt\/14219\/","title":{"rendered":"Paskelb\u0117 Visatos mirties dat\u0105: mokslininkai pasak\u0117, kiek met\u0173 liko visai \u017emonijai, art\u0117ja pabaiga"},"content":{"rendered":"

Naujausi teoriniai skai\u010diavimai rodo, kad m\u016bs\u0173 Visata gali tur\u0117ti ai\u0161ki\u0105 pabaig\u0105. Remiantis nauju tamsiosios energijos modeliu, ji nesipl\u0117s am\u017einai, o tam tikru momentu sustos ir prad\u0117s trauktis. Tai reik\u0161t\u0173, kad galiausiai viskas baigsis vadinamuoju Did\u017eiuoju susitraukimu, tai prie\u0161ingu rei\u0161kiniu tam, nuo kurio viskas prasid\u0117jo.<\/p>\n

Pagal fizik\u0173 Hoango Nhano Luu i\u0161 Ispanijos, Yu-Chengo Qiu i\u0161 Kinijos ir Henrio Tye i\u0161 JAV apskai\u010diavimus, Visatos gyvenimo trukm\u0117 siekia apie 33 mlrd. met\u0173. Kadangi nuo Did\u017eiojo sprogimo pra\u0117jo 13,8 mlrd. met\u0173, mokslinink\u0173 teigimu, \u017emonijai liko ma\u017eiau nei 20 mlrd. met\u0173 iki galutin\u0117s pabaigos.<\/p>\n

Per artimiausius 11 mlrd. met\u0173 Visata dar pl\u0117sis, ta\u010diau tada \u0161is procesas sustos. Po to, pasak tyr\u0117j\u0173, prasid\u0117s prie\u0161ingas etapas, tai Visata ims trauktis, kol viskas sugrius \u012f vien\u0105 ta\u0161k\u0105.<\/p>\n

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

Kas lemia tok\u012f scenarij\u0173?<\/p>\n

\u0160i hipotez\u0117 paremta vadinamuoju kosmologiniu konstanta, kuri\u0105 dar Albertas Ein\u0161teinas \u012ftrauk\u0117 \u012f savo bendrosios reliatyvumo teorij\u0105. Ji \u017eymima simboliu \u201e\u03bb\u201c ir nusako j\u0117g\u0105, kuri gali stumti Visat\u0105 \u012f i\u0161or\u0119 arba traukti j\u0105 \u012f vid\u0173. Jei \u201e\u03bb\u201c teigiama, Visata ple\u010diasi am\u017einai. Jei neigiama, trauka pama\u017eu \u012fveikia pl\u0117tim\u0105si, ir galiausiai viskas gri\u016bva atgal.<\/p>\n

Ilg\u0105 laik\u0105 mokslininkai man\u0117, kad \u201e\u03bb\u201c yra teigiama, ta\u010diau nauji duomenys leid\u017eia manyti, jog ji gali b\u016bti neigiama. Tokiu atveju tamsioji energija nebeveikt\u0173 kaip varomoji j\u0117ga, o prie\u0161ingai, tai kaip stabdanti galia, kuri laikui b\u0117gant sustabdyt\u0173 ir apsukt\u0173 Visatos pl\u0117tim\u0105si.<\/p>\n

Tamsioji energija ir paslaptingieji aksonai<\/p>\n

Nor\u0117dami paai\u0161kinti stebim\u0105 Visatos elges\u012f, mokslininkai \u012f savo model\u012f \u012ftrauk\u0117 dar vien\u0105 element\u0105, tai itin lengvas daleles, vadinamas aksonais. Jos, kaip manoma, veikia tarsi nematomas laukas, kuris prad\u017eioje stumia Visat\u0105 \u012f i\u0161or\u0119, bet laikui b\u0117gant jo poveikis silpn\u0117ja.<\/p>\n

\u0160iuo metu akson\u0173 \u012ftaka vis dar dominuoja, tod\u0117l Visata ple\u010diasi vis spar\u010diau. Ta\u010diau po keliolikos milijard\u0173 met\u0173 \u0161i j\u0117ga nusilps tiek, kad neigiamos konstantos trauka perims vir\u0161\u0173. Tuomet pl\u0117timasis sustos ir prasid\u0117s susitraukimo faz\u0117, truksianti apie 8 mlrd. met\u0173.<\/p>\n

Kelias \u012f nei\u0161vengiam\u0105 susitraukim\u0105<\/p>\n

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

Tyr\u0117jai lygina \u0161\u012f proces\u0105 su dviratininku, kuris kyla \u012f kaln\u0105 tur\u0117damas v\u0117j\u0105 u\u017e nugaros. Kol v\u0117jas stiprus, kylama lengvai, bet kai jis nurimsta, jud\u0117jimas sustoja, o paskui prasideda greitas nusileidimas. Pana\u0161iai ir Visata, netekusi tamsiosios energijos \u201ev\u0117jo\u201c, pama\u017eu sustos ir prad\u0117s kristi \u012f vid\u0173.<\/p>\n

Susitraukimo faz\u0117 vyks spar\u010diau nei pl\u0117timasis, nes did\u0117jantis tankis sustiprins gravitacijos j\u0117g\u0105. Galutinis rezultatas, tai visos materijos sugrius \u012f vien\u0105 ne\u012fsivaizduojamai tank\u0173 ta\u0161k\u0105, primenant\u012f prie\u0161prie\u0161\u0105 Did\u017eiajam sprogimui.<\/p>\n

Ar \u0161is scenarijus tikras?<\/p>\n

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

Mokslininkai pabr\u0117\u017eia, kad tai n\u0117ra galutinis sprendimas, o tik viena i\u0161 galim\u0173 teorij\u0173. Reik\u0117s dar daugyb\u0117s steb\u0117jim\u0173 ir skai\u010diavim\u0173, kad b\u016bt\u0173 patvirtinta, ar tamsioji energija i\u0161 ties\u0173 kinta.<\/p>\n

Vis d\u0117lto \u0161i hipotez\u0117 suteikia intriguojant\u012f atsakym\u0105 \u012f klausim\u0105, kuris \u017eavi \u017emonij\u0105 nuo seniausi\u0173 laik\u0173. Ar Visata tur\u0117jo prad\u017ei\u0105? Taip. O ar ji tur\u0117s pabaig\u0105? Jei nauji duomenys pasitvirtins, atsakymas gali b\u016bti taip, tai ir ji baigsis taip pat \u012fsp\u016bdingai, kaip ir prasid\u0117jo.<\/p>\n","protected":false},"excerpt":{"rendered":"Naujausi teoriniai skai\u010diavimai rodo, kad m\u016bs\u0173 Visata gali tur\u0117ti ai\u0161ki\u0105 pabaig\u0105. Remiantis nauju tamsiosios energijos modeliu, ji nesipl\u0117s…\n","protected":false},"author":2,"featured_media":14220,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[915,25,2704,30,31,2728,34,35,24,4456,32,33,37,39,5046,36,38,40,4932,421,23,22,5048,87,44,798,28,29,26,27,434,2858,74,75,76,5047],"class_list":{"0":"post-14219","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-pasaulis","8":"tag-metu","9":"tag-antrastes","10":"tag-arteja","11":"tag-breaking-news","12":"tag-breakingnews","13":"tag-data","14":"tag-featured-news","15":"tag-featurednews","16":"tag-headlines","17":"tag-kiek","18":"tag-latest-news","19":"tag-latestnews","20":"tag-lietuva","21":"tag-lietuviu","22":"tag-liko","23":"tag-lithuania","24":"tag-lithuanian","25":"tag-lt","26":"tag-mirties","27":"tag-mokslininkai","28":"tag-naujienos","29":"tag-news","30":"tag-pabaiga","31":"tag-pasake","32":"tag-pasaulis","33":"tag-paskelbe","34":"tag-populiariausios-naujienos","35":"tag-populiariausiosnaujienos","36":"tag-top-stories","37":"tag-topstories","38":"tag-visai","39":"tag-visatos","40":"tag-world","41":"tag-world-news","42":"tag-worldnews","43":"tag-zmonijai"},"share_on_mastodon":{"url":"","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/posts\/14219","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=14219"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/posts\/14219\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/media\/14220"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/media?parent=14219"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/categories?post=14219"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/tags?post=14219"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}