{"id":866,"date":"2024-11-04T13:50:27","date_gmt":"2024-11-04T13:50:27","guid":{"rendered":"https:\/\/paskutinenaujiena.lt\/index.php\/2024\/11\/04\/stai-kaip-zeme-gali-atrodyti-po-8-milijardu-metu\/"},"modified":"2024-11-04T13:50:27","modified_gmt":"2024-11-04T13:50:27","slug":"stai-kaip-zeme-gali-atrodyti-po-8-milijardu-metu","status":"publish","type":"post","link":"https:\/\/paskutinenaujiena.lt\/index.php\/2024\/11\/04\/stai-kaip-zeme-gali-atrodyti-po-8-milijardu-metu\/","title":{"rendered":"\u0160tai kaip \u017dem\u0117 gali atrodyti po 8 milijard\u0173 met\u0173"},"content":{"rendered":"<p> <br \/>\n<br \/><\/p>\n<div id=\"content\">\n<article class=\"news-post\">&#13;<br \/>\n    &#13;<br \/>\n    &#13;<br \/>\n    &#13;<br \/>\n                &#13;<\/p>\n<div class=\"news-article\">\n<div class=\"columns-holder \">\n<p dir=\"ltr\" id=\"docs-internal-guid-cb41b162-7fff-2f02-b5ad-26e93eeaf51e\">Planetos ateitis gali b\u016bti ne pati patogiausia m\u0105styti \u2013 nuo \u200b\u200bklimato kaitos gr\u0117sm\u0117s iki nerimo d\u0117l pasaulini\u0173 kar\u0173, ta\u010diau astronomams tai reikia atsi\u017evelgti, kai \u017ei\u016bri \u012f tolimas planetas, esan\u010dias u\u017e m\u016bs\u0173 Saul\u0117s sistemos rib\u0173, vadinamas egzoplanetomis.<\/p>\n<p>Reklama<\/p>\n<p dir=\"ltr\">Egzoplanetos gali visi\u0161kai skirtis nuo \u017dem\u0117s, j\u0173 dyd\u017eiai, tankiai ir orbitos nuo j\u0173 \u017evaig\u017ed\u017ei\u0173 gali skirtis. <strong>Nepaisant to, retkar\u010diais tyrin\u0117tojai randa egzoplanet\u0105, pana\u0161i\u0105 \u012f \u017dem\u0119 ir leid\u017eian\u010di\u0105 suprasti, kaip gal\u0117t\u0173 atrodyti m\u016bs\u0173 planetos ateitis.<\/strong><\/p>\n<p dir=\"ltr\">Tai atsitiko neseniai, kai astronomai aptiko planet\u0105, esan\u010di\u0105 u\u017e 4000 \u0161viesme\u010di\u0173, kuri yra uol\u0117ta ir yra pana\u0161aus dyd\u017eio kaip \u017dem\u0117. I\u0161samiai nurodyta <em>Gamtos astronomija<\/em>Kalifornijos universiteto Berklio tyr\u0117jai WM Keck observatorijoje Maunakea, Havajuose tyrin\u0117jo \u017evaig\u017ed\u017ei\u0173 sistem\u0105, vadinam\u0105 KMT-2020-BLG-0414, kur rado ma\u017e\u0105 \u017evaig\u017ed\u0119, vadinam\u0105 balt\u0105ja nyk\u0161tuke, kuri\u0105 skrieja \u017dem\u0117s dyd\u017eio planeta, esanti ma\u017edaug dvigubai didesniu atstumu nei \u017dem\u0117 ir Saul\u0117.<\/p>\n<p>Reklama<\/p>\n<p dir=\"ltr\">\u012edomu tai, kad \u0161is atradimas gali parodyti, kaip \u017dem\u0117 atrodys ma\u017edaug po a\u0161tuoni\u0173 milijard\u0173 met\u0173 nuo dabar, kai Saul\u0117 i\u0161sip\u016bt\u0117 ir tapo raudona mil\u017eine, o v\u0117liau susitrauk\u0117 ir tapo balta nyk\u0161tuke \u2013 jei \u017dem\u0117 i\u0161liks, yra.<\/p>\n<p>\u201e\u0160iuo metu neturime bendro sutarimo, ar per \u0161e\u0161is milijardus met\u0173 \u017dem\u0117 gal\u0117t\u0173 i\u0161vengti raudonosios mil\u017eini\u0161kos Saul\u0117s apimtos\u201c, \u2013 sak\u0117 tyrimo vadovas Kemingas Zhangas. \u201eBet kuriuo atveju \u017dem\u0117s planeta bus tinkama gyventi tik dar ma\u017edaug milijard\u0105 met\u0173, o tada \u017dem\u0117s vandenynai b\u016bt\u0173 i\u0161garuoti d\u0117l b\u0117gan\u010dio \u0161iltnamio efekto \u2013 gerokai anks\u010diau nei i\u0161kilt\u0173 pavojus, kad juos prarys raudonasis mil\u017einas.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p>&#13;<\/p>\n<div class=\"news-article\">\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Turinys:<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/paskutinenaujiena.lt\/index.php\/2024\/11\/04\/stai-kaip-zeme-gali-atrodyti-po-8-milijardu-metu\/#Zemes_ateitis\" >\u017dem\u0117s ateitis<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/paskutinenaujiena.lt\/index.php\/2024\/11\/04\/stai-kaip-zeme-gali-atrodyti-po-8-milijardu-metu\/#Su_tolimos_zvaigzdes_pagalba\" >Su tolimos \u017evaig\u017ed\u0117s pagalba<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"\"><span class=\"ez-toc-section\" id=\"Zemes_ateitis\"><\/span>\u017dem\u0117s ateitis<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#13;<br \/>\n                                         <iframe loading=\"lazy\" title=\"Red giant animation\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/iJVfR_MSZ7Q?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>&#13;\n                    <\/p>\n<div class=\"columns-holder \">\n<p dir=\"ltr\" id=\"docs-internal-guid-ed302673-7fff-5937-0e5b-c6f03f8b0582\">Taigi mums nereikia jaudintis, kad \u017dem\u0119 prarys Saul\u0117, nes planeta bet kuriuo atveju jau seniai bus tinkama gyventi. Ta\u010diau tai kelia \u012fdom\u0173 klausim\u0105, kaip planeta gal\u0117t\u0173 atrodyti po milijard\u0173 met\u0173 ateityje.<\/p>\n<p>Reklama<\/p>\n<p dir=\"ltr\">Prie\u017eastis, kod\u0117l tai neai\u0161ku, yra ta, kad neai\u0161ku, kiek tiksliai Saul\u0117 i\u0161sip\u016bs raudonojo mil\u017eino faz\u0117je. Kai Saul\u0117 art\u0117ja prie savo gyvenimo pabaigos ir jos susiliejimas sul\u0117t\u0117ja ma\u017edaug per penkis milijardus met\u0173, ilgainiui jos i\u0161orinis apvalkalas i\u0161sipl\u0117s ir v\u0117sdamas padid\u0117s. \u012e\u017eengusi \u012f savo raudonojo mil\u017eino faz\u0119, Saul\u0117 beveik neabejotinai praris Merkurij\u0173 ir Vener\u0105, nors ar ji pasieks \u017dem\u0119, kyla diskusij\u0173.<\/p>\n<p dir=\"ltr\"><strong>Jei \u017dem\u0117s nepavyks praryti, galiausiai Saul\u0117 susitrauks ir suformuos v\u0117si\u0105 \u0161erd\u012f, vadinam\u0105 balt\u0105ja nyk\u0161tuke. Tada, jei \u017dem\u0117 vis dar yra, ji gali atrodyti kaip \u0161i naujai atrasta planeta.<\/strong><\/p>\n<p>&#8222;Ar gyvyb\u0117 \u017dem\u0117je gali i\u0161likti per t\u0105 (raudonojo mil\u017eino) laikotarp\u012f, ne\u017einoma. Bet tikrai svarbiausia, kad Saul\u0117 nepraryja \u017dem\u0117s, kai ji tampa raudonuoju mil\u017einu&#8221;, &#8211; sak\u0117 koleg\u0117 tyr\u0117ja Jessica Lu i\u0161 Berklio universiteto. \u201e\u0160i sistema, kuri\u0105 atrado Kemingas, yra planetos pavyzdys \u2013 tikriausiai \u012f \u017dem\u0119 pana\u0161i planeta, kuri i\u0161 prad\u017ei\u0173 skriejo pana\u0161ioje orbitoje \u012f \u017dem\u0119 \u2013, kuri i\u0161gyveno \u017evaig\u017ed\u0117s \u0161eiminink\u0117s raudonosios mil\u017ein\u0117s faz\u0119.<\/p>\n<p>Reklama<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p>&#13;<\/p>\n<div class=\"news-article\">\n<h2 class=\"\"><span class=\"ez-toc-section\" id=\"Su_tolimos_zvaigzdes_pagalba\"><\/span>Su tolimos \u017evaig\u017ed\u0117s pagalba<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div class=\"columns-holder \">\n<p dir=\"ltr\" id=\"docs-internal-guid-6b2ff757-7fff-844e-8923-60dd7b15f7aa\">Kitas \u012fdomus \u017evaig\u017ed\u017ei\u0173 sistemos KMT-2020-BLG-0414 elementas yra tai, kaip ji buvo atrasta naudojant dar tolimesn\u0119 \u017evaig\u017ed\u0119. Galite \u012fsivaizduoti, kad nor\u0117dami i\u0161tirti \u017evaig\u017ed\u0119, tiesiog nukreipiate \u012f j\u0105 teleskop\u0105, ir taip i\u0161 tikr\u0173j\u0173 yra tiriamos kai kurios sistemos.<\/p>\n<p>Reklama<\/p>\n<p dir=\"ltr\">Ta\u010diau nor\u0117dami pa\u017evelgti \u012f labai tolimas sistemas i\u0161samiau, astronomai kartais pasinaudoja gravitacijos gudrybe, vadinama gravitaciniu l\u0119\u0161iu. \u0160is nat\u016bralus rei\u0161kinys \u012fvyksta, kai ka\u017ekas labai, labai sunkaus, pavyzd\u017eiui, \u017evaig\u017ed\u0117, galaktika ar net visas galaktik\u0173 spie\u010dius, turi toki\u0105 galing\u0105 gravitacij\u0105, kad i\u0161lenkia erdv\u0117laik\u012f. Taip sukuriamas \u012f didinam\u0105j\u012f stikl\u0105 pana\u0161us efektas, kai sunkus objektas pereina tarp m\u016bs\u0173 ir tolimo objekto, to tolimo objekto \u0161viesa gali b\u016bti padidinta, kad ar\u010diau esantis objektas atrodyt\u0173 didesnis ir detalesnis.<\/p>\n<p dir=\"ltr\"><strong>\u012evyk\u012f KMT-2020-BLG-0414 aptiko Kor\u0117jos mikrol\u0119\u0161i\u0173 teleskop\u0173 tinklas, o objektyvo \u017evaig\u017ed\u0117 ir jos potencialiai b\u016bsima \u012f \u017dem\u0119 pana\u0161i planeta yra Pauk\u0161\u010di\u0173 Take.<\/strong> \u0160i \u017evaig\u017ed\u0117 padidino tolimesn\u0117s fonin\u0117s \u017evaig\u017ed\u0117s, esan\u010dios u\u017e 25 000 \u0161viesme\u010di\u0173, \u0161vies\u0105 \u012fvykyje, vadinamame mikrol\u0119\u0161iu.<\/p>\n<p>Reklama<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p>&#13;<br \/>\n<\/article>\n<\/p><\/div>\n<p><br \/>\n<br \/><a href=\"https:\/\/www.slashgear.com\/1703209\/planet-shows-what-earth-might-look-like-8-billion-years\/\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#13; &#13; &#13; &#13; &#13; Planetos ateitis gali b\u016bti ne pati patogiausia m\u0105styti \u2013 nuo \u200b\u200bklimato kaitos gr\u0117sm\u0117s iki nerimo d\u0117l pasaulini\u0173 kar\u0173, ta\u010diau astronomams tai reikia atsi\u017evelgti, kai \u017ei\u016bri \u012f tolimas planetas, esan\u010dias u\u017e m\u016bs\u0173 Saul\u0117s sistemos rib\u0173, vadinamas egzoplanetomis. Reklama Egzoplanetos gali visi\u0161kai skirtis nuo \u017dem\u0117s, j\u0173 dyd\u017eiai, tankiai ir orbitos nuo j\u0173 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":867,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[4],"tags":[1534,198,73,66,1535,25,1533],"class_list":["post-866","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technologijos","tag-atrodyti","tag-gali","tag-kaip","tag-metu","tag-milijardu","tag-stai","tag-zeme"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/paskutinenaujiena.lt\/index.php\/wp-json\/wp\/v2\/posts\/866","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/paskutinenaujiena.lt\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/paskutinenaujiena.lt\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/paskutinenaujiena.lt\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/paskutinenaujiena.lt\/index.php\/wp-json\/wp\/v2\/comments?post=866"}],"version-history":[{"count":0,"href":"https:\/\/paskutinenaujiena.lt\/index.php\/wp-json\/wp\/v2\/posts\/866\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/paskutinenaujiena.lt\/index.php\/wp-json\/wp\/v2\/media\/867"}],"wp:attachment":[{"href":"https:\/\/paskutinenaujiena.lt\/index.php\/wp-json\/wp\/v2\/media?parent=866"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/paskutinenaujiena.lt\/index.php\/wp-json\/wp\/v2\/categories?post=866"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/paskutinenaujiena.lt\/index.php\/wp-json\/wp\/v2\/tags?post=866"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}