BBC haberine g\u00f6re, bir y\u0131l\u0131n sadece 88 g\u00fcn s\u00fcrd\u00fc\u011f\u00fc, zemin s\u0131cakl\u0131\u011f\u0131n\u0131n ise g\u00fcn i\u00e7inde 400 santigrat dereceden -170 dereceye kadar de\u011fi\u015fiklik g\u00f6sterebilece\u011fi, \u201ca\u015f\u0131r\u0131l\u0131klar gezegeni\u201d olarak nitelendirilen, en k\u00fc\u00e7\u00fck ve ayn\u0131 zamanda g\u00fcne\u015fe en yak\u0131n gezegen olan Merk\u00fcr\u2019\u00fcn, eskiden \u00e7ok daha b\u00fcy\u00fck, D\u00fcnya boyutunda olabilece\u011fi d\u00fc\u015f\u00fcn\u00fcl\u00fcyor.<\/span><\/span><\/span><\/span><\/p>\n Ancak gezegenin s\u0131cakl\u0131\u011f\u0131, G\u00fcne\u015f\u2019e olan yak\u0131nl\u0131\u011f\u0131 nedeniyle \u00e7ekim g\u00fcc\u00fcn\u00fcn fazla olmas\u0131 ve bu \u00e7ekim g\u00fcc\u00fcyle uzay ara\u00e7lar\u0131n\u0131n h\u0131z\u0131n\u0131 yava\u015flatmak ad\u0131na izlenen dolamba\u00e7l\u0131 rotalar i\u00e7in \u00e7ok fazla yak\u0131ta ihtiya\u00e7 duyulmas\u0131 gibi \u00e7e\u015fitli nedenlerle zorlu bir hedef olan Merk\u00fcr, bug\u00fcne kadar di\u011fer gezegenlere g\u00f6re \u00e7ok daha az incelenmi\u015f durumda.<\/span><\/span><\/span><\/span><\/p>\n – K\u0131br\u0131s\u2019ta bulunan boninit kaya par\u00e7alar\u0131 Merk\u00fcr\u2019\u00fcn y\u00fczey kayalar\u0131yla ayn\u0131 bile\u015fime sahip<\/span><\/span><\/span><\/span><\/p>\n \u0130talya\u2019da bulunan Pavi \u00dcniversitesi\u2019nde G\u00fcne\u015f sistemindeki gezegenlerin olu\u015fum ve evrim s\u00fcre\u00e7leri \u00fczerinde uzmanla\u015fan gezegen jeolo\u011fu Nicola Mari\u2019nin K\u0131br\u0131s\u2019ta y\u00fcr\u00fctt\u00fc\u011f\u00fc saha \u00e7al\u0131\u015fmas\u0131, Merk\u00fcr\u2019\u00fcn ko\u015fullar\u0131n\u0131n anla\u015f\u0131lmas\u0131na yard\u0131mc\u0131 olmak i\u00e7in D\u00fcnya\u2019dan \u00f6rnekler bulmay\u0131 ama\u00e7l\u0131yor.<\/span><\/span><\/span><\/span><\/p>\n D\u00fcnya’da olu\u015fan ve di\u011fer gezegenlerde bulunan yap\u0131lara benzer kayalar\u0131n jeolojik s\u00fcre\u00e7lerinin incelenmesinin d\u00fcnya d\u0131\u015f\u0131 ikizlerinin olu\u015fumu hakk\u0131ndaki teorilere rehberlik edebilece\u011fine inan\u0131l\u0131yor.<\/span><\/span><\/span><\/span><\/p>\n Mari’nin, bu ama\u00e7la y\u00fcr\u00fctt\u00fc\u011f\u00fc \u00e7al\u0131\u015fmalar kapsam\u0131nda K\u0131br\u0131s’ta ke\u015ffetti\u011fi ve D\u00fcnya atmosferinden kaynaklanan oksidasyon d\u0131\u015f\u0131nda Merk\u00fcr’\u00fcn y\u00fczey kayalar\u0131yla ayn\u0131 bile\u015fime sahip olan boninitlerin, ara\u015ft\u0131rmac\u0131lar\u0131n teorilerini ileriye g\u00f6t\u00fcrebilecek bir yol olarak g\u00f6r\u00fcl\u00fcyor.<\/span><\/span><\/span><\/span><\/p>\n Gezegen jeolo\u011fu Nicola Mari, “Bug\u00fcn g\u00f6rd\u00fc\u011f\u00fcm\u00fcz Merk\u00fcr, bir zamanlar var olan bir gezegenin \u00e7ekirde\u011finden ba\u015fka bir \u015fey olmayabilir.” diyor.<\/span><\/span><\/span><\/span><\/p>\n Mari, yerkabu\u011fundaki bir noktadan p\u00fcsk\u00fcren lavlardan olu\u015fan K\u0131br\u0131s boninitleri \u00fczerinde daha fazla yap\u0131lacak incelemelerin de Merk\u00fcr’\u00fcn ge\u00e7mi\u015findeki jeolojik faaliyetler hakk\u0131nda bilim insanlar\u0131na b\u00fcy\u00fck katk\u0131da bulunaca\u011f\u0131n\u0131 kaydediyor.<\/span><\/span><\/span><\/span><\/p>\n -BepiColombo g\u00f6revi<\/span><\/span><\/span><\/span><\/p>\n K\u0131br\u0131s\u2019ta y\u00fcr\u00fct\u00fclen bu ara\u015ft\u0131rman\u0131n, 2025’te gezegene varmas\u0131 planlanan ve Merk\u00fcr’\u00fcn mineral bile\u015fimi ve i\u00e7yap\u0131s\u0131 hakk\u0131nda ayr\u0131nt\u0131l\u0131 \u00f6l\u00e7\u00fcmler sunmas\u0131 ama\u00e7lanan Avrupa Uzay Ajans\u0131 ve Japonya i\u015fbirli\u011fiyle ba\u015flat\u0131lan BepiColombo g\u00f6revi i\u00e7in de b\u00fcy\u00fck \u00f6nem ta\u015f\u0131yor.<\/span><\/span><\/span><\/span><\/p>\n BepiColombo\u2019da g\u00f6revli bilim insan Johannes Benkhoff, yeni \u00f6l\u00e7\u00fcmlerin Merk\u00fcr\u2019den elde edilecek \u00f6rneklerin yorumlanmas\u0131ndaki \u00f6nemine vurgu yaparak, \u201cG\u00fcne\u015f\u2019e en yak\u0131n gezegene bak\u0131\u015f a\u00e7\u0131m\u0131z \u015fimdiden \u00e7ok de\u011fi\u015fti. 15 y\u0131l \u00f6nce Merk\u00fcr s\u0131k\u0131c\u0131 bir gezegen olarak g\u00f6r\u00fcl\u00fcyordu. Ama daha pek \u00e7ok s\u00fcrprizle kar\u015f\u0131la\u015faca\u011f\u0131m\u0131z\u0131 umuyorum.\u201d diyor.<\/span><\/span><\/span><\/span><\/p>\n – Merk\u00fcr\u2019\u00fcn bilinmeyenleri<\/span><\/span><\/span><\/span><\/p>\n BBC haberinde, Merk\u00fcr\u2019e ili\u015fkin Mariner 10 ve Messenger isimli ge\u00e7mi\u015f 2 misyondan elde edilen ve \u201c\u015fa\u015f\u0131rt\u0131c\u0131\u201d olarak de\u011ferlendirilen bulgular\u0131 da payla\u015farak, bu misyonlarda, Merk\u00fcr\u2019\u00fcn di\u011fer kaya\u00e7 gezegenlerden farkl\u0131 olarak, olduk\u00e7a b\u00fcy\u00fck bir \u00e7ekirde\u011fe ve ince bir mantoya sahip oldu\u011funun ortaya \u00e7\u0131kt\u0131\u011f\u0131, bunun Merk\u00fcr\u2019\u00fcn \u015fiddetli bir d\u00f6nem ge\u00e7irdi\u011fi tespitine yol a\u00e7t\u0131\u011f\u0131n\u0131 aktard\u0131.<\/span><\/span><\/span><\/span><\/p>\n Habere g\u00f6re, bunun yan\u0131nda, bulgularda, Merk\u00fcr\u2019\u00fcn manyetik bir alana sahip olmas\u0131ndan dolay\u0131 erimi\u015f bir demir \u00e7ekirdek bar\u0131nd\u0131rd\u0131\u011f\u0131 tespitleri var.<\/span><\/span><\/span><\/span><\/p>\n Merk\u00fcr\u2019\u00fcn y\u00fczeyinde kom\u015fu gezegenlerine k\u0131yasla \u00e7ok daha y\u00fcksek toryum kimyasal\u0131n\u0131n oldu\u011funun bilindi\u011fine dikkat \u00e7ekilen haberde, ancak toryumun, Merk\u00fcr\u2019\u00fcn G\u00fcne\u015f\u2019e olan yak\u0131nl\u0131\u011f\u0131 nedeniyle G\u00fcne\u015f Sistemi\u2019nin ilk zamanlar\u0131ndaki a\u015f\u0131r\u0131 s\u0131cakl\u0131ktan buharla\u015fm\u0131\u015f olmas\u0131 gerekti\u011fi belirtildi.<\/span><\/span><\/span><\/span><\/p>\n Baz\u0131 gezegen bilimcilere g\u00f6re, Merk\u00fcr\u2019e ili\u015fkin t\u00fcm bu anomaliler, gezegenin ba\u015flang\u0131\u00e7ta G\u00fcne\u015f’ten daha uzak bir noktada, Mars’a yak\u0131n bir yerde, tespit edilen b\u00fcy\u00fck \u00e7ekirde\u011fine uygun olarak D\u00fcnya b\u00fcy\u00fckl\u00fc\u011f\u00fcnde bir k\u00fctle \u015fekilde olu\u015ftu ve Merk\u00fcr daha sonra ba\u015fka bir cisimle \u00e7arp\u0131\u015fmas\u0131 sonucu kabuk ve mantosunun b\u00fcy\u00fck bir k\u0131sm\u0131n\u0131 kaybetti, d\u00f6nerek G\u00fcne\u015f\u2019e yak\u0131n bir noktaya vard\u0131.<\/span><\/span><\/span><\/span><\/p>\n 90 milyon y\u0131ldan daha uzun bir s\u00fcre \u00f6nce Tetis Okyanusu’nun alt\u0131nda olu\u015fan K\u0131br\u0131s\u2019\u0131n ev sahipli\u011fi yapt\u0131\u011f\u0131 boninit kayalar\u0131n\u0131n bile\u015fimi \u00fczerinde yap\u0131lan incelemelerde, bile\u015fimin Merk\u00fcr’den al\u0131nan \u00f6rneklerle tam olarak e\u015fle\u015fti\u011fi kaydediliyor. Gezegen jeologlar\u0131, \u00f6rneklerden al\u0131nan bile\u015fimlerin benzer de\u011fil, ayn\u0131 oldu\u011funa dikkat \u00e7ekiyor. BBC haberine g\u00f6re, bir y\u0131l\u0131n sadece 88 g\u00fcn s\u00fcrd\u00fc\u011f\u00fc, zemin s\u0131cakl\u0131\u011f\u0131n\u0131n ise g\u00fcn i\u00e7inde<\/p>\n","protected":false},"author":1,"featured_media":39605,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[79],"tags":[],"class_list":["post-39604","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ekonomi"],"yoast_head":"\n![](\"https:\/\/tak.gov.ct.tr\/panel\/uploads\/news_v\/merkur.jpg\")
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