{"id":29227,"date":"2021-12-02T12:54:00","date_gmt":"2021-12-02T12:54:00","guid":{"rendered":"https:\/\/haberglobal.com.tr\/dunya\/gunes-sisteminin-cehennemi-venus-bir-zamanlar-dunya-gibiydi-146807"},"modified":"2021-12-02T12:54:00","modified_gmt":"2021-12-02T12:54:00","slug":"gunes-sisteminin-cehennemi-venus-bir-zamanlar-dunya-gibiydi","status":"publish","type":"post","link":"https:\/\/istanbulchannel.net\/index.php\/2021\/12\/02\/gunes-sisteminin-cehennemi-venus-bir-zamanlar-dunya-gibiydi\/","title":{"rendered":"G\u00fcne\u015f sisteminin cehennemi Ven\u00fcs: Bir zamanlar D\u00fcnya gibiydi"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/istanbulchannel.net\/wp-content\/uploads\/2021\/12\/gunes-sisteminin-cehennemi-venus-bir-zamanlar-dunya-gibiydi.webp\"> <\/p>\n<div><img decoding=\"async\" src=\"https:\/\/istanbulchannel.net\/wp-content\/uploads\/2021\/12\/gunes-sisteminin-cehennemi-venus-bir-zamanlar-dunya-gibiydi.jpg\" class=\"ff-og-image-inserted\"><\/div>\n<p>\u0130klim de\u011fi\u015fikli\u011fi d\u00fcnyan\u0131n kar\u015f\u0131 kar\u015f\u0131ya oldu\u011fu en b\u00fcy\u00fck do\u011fal tehdit. Buzullar eriyor, k\u0131y\u0131lar g\u00f6\u00e7\u00fcyor, pek \u00e7ok hayvan\u0131n nesli tehlikede ve orman yang\u0131nlar\u0131 art\u0131k haftalar boyunca s\u00fcrebiliyor. \u0130klim de\u011fi\u015fikli\u011finin bir gezegeni nas\u0131l yok etti\u011fini anlamak i\u00e7in elimizde Ven\u00fcs gibi kanl\u0131 canl\u0131 bir \u00f6rnek var. Bu gezegende \u015fu an s\u0131cakl\u0131klar 450 santigrat dereceye kadar \u00e7\u0131kabiliyor. Atmosferinin y\u00fczde 96\u2019s\u0131 ise karbondioksitten \u00f6r\u00fcl\u00fc.<\/p>\n<p>Gezegendeki bulutlar yerden tam 60 kilometre y\u00fcksekte. Baz\u0131 ara\u015ft\u0131rmalar bulutlar\u0131nda mikroskobik canl\u0131lar\u0131n ya\u015f\u0131yor olabilece\u011fini d\u00fc\u015f\u00fcnd\u00fcrt\u00fcyor. Bilim insanlar\u0131na g\u00f6re Ven\u00fcs bir g\u00fcnde b\u00f6yle cehenneme d\u00f6n\u00fc\u015fmedi.<\/p>\n<p>Eskiden ikliminin D\u00fcnya\u2019ya benzedi\u011fi ifade ediliyor. Ven\u00fcs\u2019te bir zamanlar hayat var m\u0131yd\u0131 bilinmez ama gezegende, okyanuslar\u0131n oldu\u011fu, ya\u011fmurlar\u0131n ya\u011fd\u0131\u011f\u0131 hatta belki de kar\u0131n bile olu\u015ftu\u011fu bir d\u00f6nemden s\u00f6z ediliyor.<\/p>\n<h3><strong>OKYANUSLARI NASIL BUHARLA\u015eTI?<\/strong><\/h3>\n<p>Yakla\u015f\u0131k 2 milyar y\u0131l \u00f6nce gezegenin iklimi sera gaz\u0131 sal\u0131n\u0131m\u0131ndan dolay\u0131 de\u011fi\u015fmeye ba\u015flam\u0131\u015f. Bu de\u011fi\u015fiklikten yola \u00e7\u0131karak okyanuslar\u0131n buharla\u015ft\u0131\u011f\u0131 varsay\u0131l\u0131yor. Ven\u00fcs 90\u2019l\u0131 y\u0131llar\u0131n ba\u015f\u0131ndan bu yana kapsaml\u0131 bir \u015fekilde ara\u015ft\u0131r\u0131l\u0131yor. Carleton \u00dcniversitesi ve Tomsk \u00dcniversitesi\u2019nden ekipler gezegendeki tektonik hareketleri a\u00e7\u0131klamaya \u00e7al\u0131\u015f\u0131yorlar.<\/p>\n<p>70\u2019ler ve 80\u2019lerde Sovyetlerin iki uzay g\u00f6revi (Venera ve Vega) Ven\u00fcs\u2019e inip buradan ta\u015f \u00f6rnekleri toplamak \u00fczerineydi ama atmosferin s\u0131cakl\u0131\u011f\u0131 uzay ara\u00e7lar\u0131n\u0131n bu gezegene inmesine m\u00fcsaade etmedi.<\/p>\n<p>\u015eu an Ven\u00fcs\u2019e dair en kapsaml\u0131 g\u00f6r\u00fcnt\u00fcler 1990\u2019lar\u0131n ba\u015f\u0131nda NASA\u2019n\u0131n Magellan uzay gemisinin \u00e7ekti\u011fi g\u00f6r\u00fcnt\u00fclerden ibaret. Bu g\u00f6r\u00fcnt\u00fclerde Ven\u00fcs\u2019\u00fcn y\u00fczeyinin y\u00fczde 98\u2019i taranm\u0131\u015f ve bulutlar\u0131n bi\u00e7imi hakk\u0131nda fikir sahibi olunmu\u015ftu.&nbsp;\ud83d\udc47<\/p>\n<figure class=\"custom-ratio\"><span class=\"holder\"><\/span><iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/yUrIzPRI4GE\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\">[embedded content]<\/iframe><\/figure>\n<p>Ven\u00fcs\u2019teki iklim de\u011fi\u015fikli\u011finin cevaplar\u0131ndan birinin gezegendeki kayalarda oldu\u011fu belirtiliyor. Bu kayal\u0131klarda su erozyonunun izleri oldu\u011fu d\u00fc\u015f\u00fcn\u00fcl\u00fcyor. Ayr\u0131ca y\u00fczeyindeki vadilere benzeyen co\u011frafi bi\u00e7imlerin de sular taraf\u0131ndan \u015fekillendirildi\u011fi varsay\u0131l\u0131yor. Richard Ernst\u2019in y\u00fcr\u00fctt\u00fc\u011f\u00fc ara\u015ft\u0131rmaya g\u00f6re; d\u00fcnyadaki vadilerin bi\u00e7imi ile Ven\u00fcs\u2019teki vadilerin bi\u00e7imi birbirlerine \u00e7ok benziyor.<\/p>\n<p>Ven\u00fcs 450 santigrat dereceye \u00e7\u0131kan s\u0131cakl\u0131\u011f\u0131 ile G\u00fcne\u015f Sistemi\u2019ndeki en s\u0131cak gezegen. Gezegenin volkanik bir y\u00fczeyi var ve bulutlar\u0131 y\u00fcksek miktarda asit ta\u015f\u0131yor. Y\u00fczeyindeki bas\u0131n\u00e7 d\u00fcnyadakinin 92 kat\u0131. Bir insan Ven\u00fcs\u2019\u00fcn y\u00fczeyine b\u0131rak\u0131ld\u0131\u011f\u0131nda oksijensizlikten de\u011fil, zaten bas\u0131n\u00e7tan saniyeler i\u00e7inde hayat\u0131n\u0131 kaybeder.<\/p>\n<h3><strong>NASA DA AYNI F\u0130K\u0130RDE<\/strong><\/h3>\n<p>NASA\u2019n\u0131n Goddard Enstit\u00fcs\u00fc\u2019n\u00fcn yapt\u0131\u011f\u0131 ba\u015fka bir tahmine g\u00f6re ise Ven\u00fcs\u2019te yakla\u015f\u0131k 2 milyar y\u0131l \u00f6nce canl\u0131 hayat\u0131 olabilir. Tahminin yap\u0131ld\u0131\u011f\u0131 ara\u015ft\u0131rman\u0131n y\u00f6neticisi Michael Way \u201cD\u00fcnyada iklim de\u011fi\u015fikli\u011finin sonu\u00e7lar\u0131 ve sebeplerine ili\u015fkin yapt\u0131\u011f\u0131m\u0131z modellemeleri aynen Ven\u00fcs i\u00e7in uygulad\u0131k. Bu sonu\u00e7lara g\u00f6re Ven\u00fcs\u2019\u00fcn \u015fu an g\u00f6z\u00fckt\u00fc\u011f\u00fcnden \u00e7ok daha farkl\u0131 g\u00f6z\u00fckt\u00fc\u011f\u00fc bir d\u00f6nem oldu\u011funu anlad\u0131k\u201d de\u011ferlendirmesinde bulunuyor.<\/p>\n<p>Ven\u00fcs\u2019\u00fcn b\u00fcy\u00fck patlamadan sonra D\u00fcnya ile ayn\u0131 kimyasallardan olu\u015ftu\u011funu fakat daha farkl\u0131 bir evrimsel yol ge\u00e7irdi\u011fi d\u00fc\u015f\u00fcn\u00fcl\u00fcyor. Tahminlere g\u00f6re G\u00fcne\u015f\u2019e d\u00fcnyadan daha yak\u0131n olan Ven\u00fcs\u2019teki okyanuslar y\u0131llar i\u00e7erisinde buharla\u015ft\u0131, su buhar\u0131 molek\u00fclleri, ultraviyole \u0131\u015f\u0131nlar\u0131 ile radyasyona maruz kald\u0131 ve buradaki hidrojen uzaya ka\u00e7t\u0131. Bu sebepten y\u00fczeyde hi\u00e7 su kalmad\u0131.<\/p>\n<p>Ven\u00fcs d\u00fcnyadan \u00e7ok daha yava\u015f bir \u015fekilde kendi ekseni etraf\u0131nda d\u00f6nen bir gezegen. Ven\u00fcs\u2019\u00fcn kendi etraf\u0131nda bir tur d\u00f6nmesi D\u00fcnya\u2019da 117 g\u00fcne denk geliyor. Bu yava\u015fl\u0131kta atmosferini olu\u015fturan kimyasallar da etkili.<\/p>\n<p>NASA \u00f6n\u00fcm\u00fczdeki y\u0131llarda Ven\u00fcs\u2019e iki robotik uzay arac\u0131 g\u00f6ndermeyi planl\u0131yor. VERITAS ismi verilen uzay arac\u0131 Ven\u00fcs\u2019\u00fcn haritas\u0131n\u0131 \u00e7\u0131karacak ve \u00fc\u00e7 boyutlu modellemesini yapacak. Ven\u00fcs\u2019\u00fcn volkanik yap\u0131s\u0131ndan dolay\u0131 insan ya\u015fam\u0131na elveri\u015fli olmad\u0131\u011f\u0131 i\u00e7in D\u00fcnya\u2019ya yak\u0131n olan ba\u015fka bir gezegen Mars\u2019ta koloni kurma \u00fczerine form\u00fcller geli\u015ftiriliyor.<\/p>\n<p><strong>Kaynaklar: Vox, Converstaion, NASA, The Hill<\/strong><\/p>\n<p class=\"news-source\">Kaynak: Web \u00d6zel<\/p>\n","protected":false},"excerpt":{"rendered":"<p> \u0130klim de\u011fi\u015fikli\u011fi d\u00fcnyan\u0131n \u00f6n\u00fcndeki en somut tehdit. Seller, yang\u0131nlar, buzullar her \u015feyin dengesi \u015fa\u015ft\u0131. Bir zamanlar D\u00fcnya&#8217;n\u0131n \u015fimdiki durumuna benzeyen&#8230;<\/p>\n","protected":false},"author":2,"featured_media":29228,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-29227","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dunya"],"_links":{"self":[{"href":"https:\/\/istanbulchannel.net\/index.php\/wp-json\/wp\/v2\/posts\/29227","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/istanbulchannel.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/istanbulchannel.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/istanbulchannel.net\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/istanbulchannel.net\/index.php\/wp-json\/wp\/v2\/comments?post=29227"}],"version-history":[{"count":0,"href":"https:\/\/istanbulchannel.net\/index.php\/wp-json\/wp\/v2\/posts\/29227\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/istanbulchannel.net\/index.php\/wp-json\/wp\/v2\/media\/29228"}],"wp:attachment":[{"href":"https:\/\/istanbulchannel.net\/index.php\/wp-json\/wp\/v2\/media?parent=29227"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/istanbulchannel.net\/index.php\/wp-json\/wp\/v2\/categories?post=29227"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/istanbulchannel.net\/index.php\/wp-json\/wp\/v2\/tags?post=29227"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}