{"id":119025,"date":"2025-05-28T19:00:07","date_gmt":"2025-05-28T19:00:07","guid":{"rendered":"https:\/\/kamucalisani.net\/?p=119025"},"modified":"2025-05-28T19:00:07","modified_gmt":"2025-05-28T19:00:07","slug":"venus-hakkinda-bildiklerimiz-tamamen-yanlis-olabilir-iste-yeni-arastirma","status":"publish","type":"post","link":"https:\/\/kamucalisani.net\/index.php\/2025\/05\/28\/venus-hakkinda-bildiklerimiz-tamamen-yanlis-olabilir-iste-yeni-arastirma\/","title":{"rendered":"Ven\u00fcs hakk\u0131nda bildiklerimiz tamamen yanl\u0131\u015f olabilir: \u0130\u015fte yeni ara\u015ft\u0131rma"},"content":{"rendered":"

<\/span> Ven\u00fcs’\u00fcn bir zamanlar D\u00fcnya’ya benzeyen bir gezegen olabilece\u011fi y\u00f6n\u00fcndeki genel g\u00f6r\u00fc\u015f, yap\u0131lan yeni bir ara\u015ft\u0131rma ile \u00e7\u00fcr\u00fct\u00fcld\u00fc. Cambridge \u00dcniversitesi’nden bir grup g\u00f6kbilimci, gezegenin atmosferinin kimyasal yap\u0131s\u0131n\u0131 inceleyerek, Ven\u00fcs<\/strong>‘\u00fcn hi\u00e7bir zaman y\u00fczeyinde s\u0131v\u0131 su bar\u0131nd\u0131rmad\u0131\u011f\u0131n\u0131 ve dolay\u0131s\u0131yla ya\u015fama uygun olmad\u0131\u011f\u0131n\u0131 ortaya koydu. <\/figure>\n

Nature Astronomy<\/strong> dergisinde bildirilen sonu\u00e7lar, D\u00fcnya’n\u0131n benzersizli\u011fini anlamak i\u00e7in b\u00fcy\u00fck \u00f6nem ta\u015f\u0131yor. Bir\u00e7ok \u00f6tegezegen Ven\u00fcs benzeri olsa da \u00e7al\u0131\u015fma, g\u00f6kbilimcilerin odaklar\u0131n\u0131 D\u00fcnya’ya daha \u00e7ok benzeyen \u00f6tegezegenlere daraltmalar\u0131 gerekti\u011fini \u00f6ne s\u00fcr\u00fcyor.<\/p>\n

Ven\u00fcs: k\u00f6t\u00fc ikiz karde\u015f<\/b><\/p>\n

D\u0131\u015far\u0131dan bak\u0131ld\u0131\u011f\u0131nda Ven\u00fcs, D\u00fcnya\u2019n\u0131n karde\u015fi gibi g\u00f6r\u00fcn\u00fcyor. Hemen hemen ayn\u0131 boyutlarda ve kayal\u0131k yap\u0131da bir gezegen. Ancak yak\u0131ndan incelendi\u011finde, Ven\u00fcs\u2019\u00fcn 500\u00b0C’yi a\u015fan y\u00fczey s\u0131cakl\u0131\u011f\u0131<\/strong> ve s\u00fclf\u00fcrik asit bulutlar\u0131yla kapl\u0131 atmosferi, onu “k\u00f6t\u00fc bir ikiz<\/strong>” haline getiriyor.<\/p>\n

<\/span> Bu a\u015f\u0131r\u0131 ko\u015fullara ra\u011fmen, g\u00f6kbilimciler on y\u0131llard\u0131r Ven\u00fcs’\u00fcn bir zamanlar ya\u015fam\u0131 destekleyebilecek s\u0131v\u0131 okyanuslara sahip olup olmad\u0131\u011f\u0131n\u0131 ya da kal\u0131n bulutlar\u0131nda \u015fu anda gizemli bir ‘hava’ ya\u015fam\u0131n\u0131n var olup olmad\u0131\u011f\u0131n\u0131 ara\u015ft\u0131r\u0131yorlar. <\/figure>\n

Ara\u015ft\u0131rman\u0131n ba\u015f yazar\u0131 ve Cambridge \u00dcniversitesi Astronomi Enstit\u00fcs\u00fc’nden doktora \u00f6\u011frencisi Tereza Constantinou<\/strong>, \u201cBu on y\u0131l\u0131n sonunda sonda g\u00f6nderene kadar Ven\u00fcs’\u00fcn ya\u015fam\u0131 destekleyip desteklemedi\u011finden emin olamayaca\u011f\u0131z. Ancak muhtemelen hi\u00e7bir zaman okyanuslara sahip olmad\u0131\u011f\u0131 g\u00f6z \u00f6n\u00fcne al\u0131nd\u0131\u011f\u0131nda, Ven\u00fcs’\u00fcn s\u0131v\u0131 su gerektiren D\u00fcnya benzeri ya\u015fam\u0131 destekledi\u011fini hayal etmek zor.\u201d<\/em> dedi.<\/p>\n

Ven\u00fcs\u2019\u00fcn ge\u00e7mi\u015fine dair iki teori<\/b><\/p>\n

<\/span> Ven\u00fcs’\u00fcn nas\u0131l bu denli ya\u015fanamaz bir gezegen haline geldi\u011fi konusunda iki ana teori bulunuyor<\/strong>. \u0130lki, gezegenin ba\u015flang\u0131\u00e7ta \u0131l\u0131man bir iklime ve s\u0131v\u0131 suya sahip olabilece\u011fi, ancak volkanik faaliyetlerin tetikledi\u011fi bir sera etkisinin buharla\u015fmay\u0131 ve s\u0131cakl\u0131\u011f\u0131 art\u0131rarak y\u00fczeyi kavurdu\u011fu y\u00f6n\u00fcnde. <\/figure>\n

\u0130kinci teori ise Ven\u00fcs’\u00fcn ba\u015flang\u0131\u00e7tan itibaren s\u0131cak bir gezegen oldu\u011fu ve y\u00fczeyinde hi\u00e7bir zaman s\u0131v\u0131 suyun yo\u011funla\u015famad\u0131\u011f\u0131n\u0131 \u00f6ne s\u00fcr\u00fcyor.<\/p>\n

Constantinou ve ekibi, mevcut atmosferik kimyay\u0131 analiz ederek bu iki teoriyi test etmeye karar verdi. Yapt\u0131klar\u0131 hesaplamalar, Ven\u00fcs atmosferini stabilize etmek i\u00e7in gereken gazlar\u0131n, volkanik faaliyetlerden sa\u011flanan gazlarla dengelenmesi gerekti\u011fini g\u00f6sterdi. Ancak Ven\u00fcs\u2019\u00fcn i\u00e7 k\u0131sm\u0131ndan gelen bu gazlar, D\u00fcnya\u2019daki gibi su a\u00e7\u0131s\u0131ndan zengin de\u011fil.<\/p>\n

<\/span> Volkanizma, atmosfere sa\u011flad\u0131\u011f\u0131 gazlar sayesinde Ven\u00fcs gibi kayal\u0131k gezegenlerin i\u00e7 k\u0131s\u0131mlar\u0131na bir pencere a\u00e7\u0131yor. Genellikle magma mantodan y\u00fczeye y\u00fckselirken, gezegenin daha derin k\u0131s\u0131mlar\u0131ndaki gazlar\u0131 serbest b\u0131rak\u0131r. Mesela D\u00fcnya\u2019daki volkanik patlamalar, su a\u00e7\u0131s\u0131ndan zengin i\u00e7 k\u0131s\u0131m nedeniyle \u00e7o\u011funlukla buhar halinde. Ancak ara\u015ft\u0131rmac\u0131lar Ven\u00fcs atmosferini ayakta tutmak i\u00e7in gerekli volkanik gazlar\u0131n bile\u015fimine dayanarak, Ven\u00fcs’teki volkanik gazlar\u0131n en fazla y\u00fczde alt\u0131 oran\u0131nda su i\u00e7erdi\u011fini buldular. <\/figure>\n

Bilim insanlar\u0131na g\u00f6re bu durum, Ven\u00fcs\u2019\u00fcn, D\u00fcnya\u2019daki gibi su zengini bir i\u00e7 yap\u0131ya sahip olmad\u0131\u011f\u0131n\u0131 ve y\u00fczeyinde okyanuslar\u0131n hi\u00e7bir zaman olu\u015famad\u0131\u011f\u0131na i\u015faret ediyor. Bu on y\u0131l\u0131n sonunda NASA’n\u0131n DAVINCI g\u00f6revi, bir dizi u\u00e7u\u015f ve y\u00fczeye g\u00f6nderilen bir sonda ile Ven\u00fcs’\u00fcn her zaman kuru, misafirperver olmayan bir gezegen olup olmad\u0131\u011f\u0131n\u0131 test edip do\u011frulayacak.<\/p>\n

Constantinou, \u201cE\u011fer Ven\u00fcs ge\u00e7mi\u015fte ya\u015fanabilir bir gezegense, bu daha \u00f6nce buldu\u011fumuz di\u011fer gezegenlerin de ya\u015fanabilir olabilece\u011fi anlam\u0131na gelir. Ancak Ven\u00fcs hi\u00e7bir zaman ya\u015fanabilir olmad\u0131ysa, o zaman ba\u015fka yerlerdeki Ven\u00fcs benzeri gezegenin de ya\u015fama uygun olma olas\u0131l\u0131\u011f\u0131 azal\u0131yor\u201d<\/em> diyor.<\/p>\n\n

Kaynak\u00a0 :\u00a0https:\/\/www.donanimhaber.com\/venus-hakkinda-bildiklerimiz-tamamen-yanlis-olabilir–184903<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Ven\u00fcs’\u00fcn bir zamanlar D\u00fcnya’ya benzeyen bir gezegen olabilece\u011fi y\u00f6n\u00fcndeki genel g\u00f6r\u00fc\u015f, yap\u0131lan yeni bir ara\u015ft\u0131rma ile \u00e7\u00fcr\u00fct\u00fcld\u00fc. Cambridge \u00dcniversitesi’nden bir grup g\u00f6kbilimci, gezegenin atmosferinin kimyasal yap\u0131s\u0131n\u0131 inceleyerek, Ven\u00fcs’\u00fcn …<\/p>\n","protected":false},"author":1,"featured_media":119026,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[152,4025,742,6029,1802],"class_list":["post-119025","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-teknoloji","tag-dunya","tag-gezegen","tag-venus","tag-volkanik","tag-yuzey"],"_links":{"self":[{"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/posts\/119025","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/comments?post=119025"}],"version-history":[{"count":1,"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/posts\/119025\/revisions"}],"predecessor-version":[{"id":119031,"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/posts\/119025\/revisions\/119031"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/media\/119026"}],"wp:attachment":[{"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/media?parent=119025"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/categories?post=119025"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/tags?post=119025"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}