{"id":112178,"date":"2025-05-14T06:48:08","date_gmt":"2025-05-14T06:48:08","guid":{"rendered":"https:\/\/kamucalisani.net\/?p=112178"},"modified":"2025-05-14T06:48:08","modified_gmt":"2025-05-14T06:48:08","slug":"uranusun-uydusu-miranda-icin-sasirtici-okyanus-kesfi","status":"publish","type":"post","link":"https:\/\/kamucalisani.net\/index.php\/2025\/05\/14\/uranusun-uydusu-miranda-icin-sasirtici-okyanus-kesfi\/","title":{"rendered":"Uran\u00fcs\u2019\u00fcn uydusu Miranda i\u00e7in \u015fa\u015f\u0131rt\u0131c\u0131 okyanus ke\u015ffi"},"content":{"rendered":"

<\/span> Son ara\u015ft\u0131rmalar, Uran\u00fcs<\/strong>‘\u00fcn uydusu Miranda<\/strong>‘n\u0131n y\u00fczeyinin alt\u0131nda bir okyanus<\/strong> bar\u0131nd\u0131rabilece\u011fini \u00f6ne s\u00fcr\u00fcyor. Bu \u015fa\u015f\u0131rt\u0131c\u0131 bulgu, Miranda’n\u0131n tarihi ve bile\u015fimi hakk\u0131ndaki bir\u00e7ok varsay\u0131ma meydan okuyor. Ayn\u0131 zamanda uyduyu, G\u00fcne\u015f Sistemi\u2019nde potansiyel olarak ya\u015fam\u0131 s\u00fcrd\u00fcren ortamlara sahip birka\u00e7 se\u00e7kin cisim aras\u0131nda sokuyor. <\/figure>\n

Johns Hopkins Uygulamal\u0131 Fizik Laboratuvar\u0131\u2019ndan gezegen bilimci Tom Nordheim ve \u00e7al\u0131\u015fma ekibine g\u00f6re, Miranda gibi k\u00fc\u00e7\u00fck bir cismin i\u00e7inde okyanus bulunma olas\u0131l\u0131\u011f\u0131 olduk\u00e7a \u015fa\u015f\u0131rt\u0131c\u0131<\/strong>. Ekibe g\u00f6re bu durum, gezegen sistemimizin uzak k\u00f6\u015felerinde dahi ya\u015fam bar\u0131nd\u0131rabilecek ortamlar olabilece\u011fini g\u00f6steriyor.<\/p>\n

Voyager 2 ile ba\u015flayan gizem<\/b><\/p>\n

1986<\/strong> y\u0131l\u0131nda Voyager 2<\/strong> uzay arac\u0131 taraf\u0131ndan \u00e7ekilen g\u00f6r\u00fcnt\u00fcler, Miranda\u2019n\u0131n g\u00fcney yar\u0131m k\u00fcresinde olduk\u00e7a al\u0131\u015f\u0131lmad\u0131k jeolojik yap\u0131lar\u0131 g\u00f6zler \u00f6n\u00fcne serdi. Y\u00fczeyi dik yama\u00e7larla \u00e7evrili \u00e7ukurlar, s\u0131rtlar ve \u00e7atlaklarla dolu<\/strong> olan Miranda, bu karma\u015f\u0131k yap\u0131s\u0131yla adeta bir “Frankenstein” eseri gibi. \u00c7o\u011fu ara\u015ft\u0131rmac\u0131 bu tuhaf yap\u0131lar\u0131n gelgit kuvvetleri ve uydu i\u00e7indeki \u0131s\u0131nman\u0131n bir sonucu oldu\u011fundan \u015f\u00fcpheleniyor.<\/p>\n

<\/span> \u00c7al\u0131\u015fma kapsam\u0131nda ara\u015ft\u0131rma ekibi, Voyager 2 g\u00f6r\u00fcnt\u00fclerini analiz edere uydunun i\u00e7 yap\u0131s\u0131n\u0131n nas\u0131l olabilece\u011fine dair bir model geli\u015ftirildi. Y\u00fczeyde g\u00f6zlemlenen \u00e7atlaklar, s\u0131rtlar ve di\u011fer benzersiz yap\u0131lar\u0131n modelle test edilmesi sonucunda Miranda\u2019\u0131n 100-500 milyon y\u0131l \u00f6nce<\/strong> y\u00fczeyinin alt\u0131nda geni\u015f bir okyanus<\/strong> bulundu\u011fu sonucuna ula\u015f\u0131ld\u0131. Ara\u015ft\u0131rmaya g\u00f6re, bu okyanus yakla\u015f\u0131k 100 kilometre derinli\u011fe<\/strong> sahipti ve 30 kilometreden daha kal\u0131n olmayan bir buz tabakas\u0131yla \u00f6rt\u00fcl\u00fcyd\u00fc. <\/figure>\n

Miranda’n\u0131n yar\u0131\u00e7ap\u0131n\u0131n sadece 235 kilometre oldu\u011fu g\u00f6z \u00f6n\u00fcne al\u0131nd\u0131\u011f\u0131nda okyanus, uydunun neredeyse yar\u0131s\u0131n\u0131 dolduruyordu<\/strong>. Ara\u015ft\u0131rmac\u0131lara g\u00f6re Miranda\u2019n\u0131n i\u00e7indeki \u0131s\u0131n\u0131n ana kayna\u011f\u0131, Uran\u00fcs’\u00fcn di\u011fer uydular\u0131 ile olan yer\u00e7ekimsel etkile\u015fimler<\/strong>. Bu t\u00fcr etkile\u015fimler uydunun yap\u0131s\u0131n\u0131 adeta bir lastik top gibi \u015fekillendirerek i\u00e7 s\u0131cakl\u0131\u011f\u0131 art\u0131r\u0131yor. J\u00fcpiter\u2019in uydular\u0131 Io ve Europa aras\u0131ndaki rezonans gibi, Miranda ve kom\u015fu uydular\u0131 da bir zamanlar benzer bir rezonansa sahipti. Bu rezonans, uydular aras\u0131nda d\u00fczenli gelgit kuvvetlerinin meydana gelmesine, dolay\u0131s\u0131yla \u0131s\u0131n\u0131n olu\u015fmas\u0131na neden oldu.<\/p>\n

Zaman i\u00e7inde bu rezonans bozuldu ve Miranda\u2019n\u0131n i\u00e7 yap\u0131s\u0131 so\u011fumaya ba\u015flad\u0131. Ancak, ara\u015ft\u0131rmac\u0131lar Miranda’n\u0131n i\u00e7 yap\u0131s\u0131n\u0131n hen\u00fcz tamamen donmad\u0131\u011f\u0131n\u0131<\/strong> d\u00fc\u015f\u00fcn\u00fcyor. Ara\u015ft\u0131rmac\u0131lar, i\u00e7 okyanusun tamamen donmu\u015f olmas\u0131 halinde y\u00fczeyde daha fazla \u00e7atlak olaca\u011f\u0131n\u0131 belirtti. Bu da Miranda’n\u0131n hala so\u011fumakta oldu\u011funu ve \u015fu anda bile y\u00fczeyinin alt\u0131nda bir okyanus olabilece\u011fini g\u00f6steriyor.<\/p>\n

Enceladus ile paralellik<\/b><\/p>\n

<\/span> Miranda’n\u0131n bir okyanusa sahip olaca\u011f\u0131 tahmin edilmiyordu. K\u00fc\u00e7\u00fck boyutu ve ya\u015fl\u0131l\u0131\u011f\u0131yla bilim insanlar\u0131 onun donmu\u015f bir buz topu olaca\u011f\u0131n\u0131 d\u00fc\u015f\u00fcn\u00fcyorlard\u0131. Olu\u015fumundan arta kalan \u0131s\u0131n\u0131n uzun zaman \u00f6nce da\u011f\u0131ld\u0131\u011f\u0131 varsay\u0131l\u0131yordu. Ancak uzay, varsay\u0131mlar\u0131 g\u00fcl\u00fcn\u00e7 bir \u015fekilde bozacak bir ortam. <\/figure>\n

\u00d6rne\u011fin, Cassini <\/strong>uzay arac\u0131 2004 y\u0131l\u0131nda Enceladus<\/strong>‘a ula\u015fmadan \u00f6nce bir\u00e7ok bilim insan\u0131 uydunun donmu\u015f bir buz ve kaya topu oldu\u011funu d\u00fc\u015f\u00fcn\u00fcyordu. Ancak Sat\u00fcrn\u2019\u00fcn uydusu Enceladus, bilim insanlar\u0131n\u0131n tahminlerini tersine \u00e7evirerek jeolojik olarak aktif bir uydu oldu\u011funu kan\u0131tlad\u0131. Enceladus\u2019un y\u00fczeyinden p\u00fcsk\u00fcren su buhar\u0131 ve buz par\u00e7ac\u0131klar\u0131, gezegenimizin \u00f6tesinde ya\u015fam ara\u015ft\u0131rmalar\u0131 i\u00e7in umut verici bir hedef haline geldi. Hatta Enceladus \u015fu anda D\u00fcnya d\u0131\u015f\u0131nda ya\u015fam aray\u0131\u015f\u0131nda birincil hedef<\/strong>.<\/p>\n\n

Kaynak\u00a0 :\u00a0https:\/\/www.donanimhaber.com\/uranus-un-uydusu-miranda-icin-sasirtici-okyanus-kesfi–183778<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Son ara\u015ft\u0131rmalar, Uran\u00fcs’\u00fcn uydusu Miranda’n\u0131n y\u00fczeyinin alt\u0131nda bir okyanus bar\u0131nd\u0131rabilece\u011fini \u00f6ne s\u00fcr\u00fcyor. Bu \u015fa\u015f\u0131rt\u0131c\u0131 bulgu, Miranda’n\u0131n tarihi ve bile\u015fimi hakk\u0131ndaki bir\u00e7ok varsay\u0131ma meydan okuyor. Ayn\u0131 zamanda uyduyu, G\u00fcne\u015f Sistemi\u2019nde …<\/p>\n","protected":false},"author":1,"featured_media":112179,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[227,7405,7404,7403,121],"class_list":["post-112178","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-teknoloji","tag-arastirma","tag-enceladus","tag-miranda","tag-okyanus","tag-uydu"],"_links":{"self":[{"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/posts\/112178","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=112178"}],"version-history":[{"count":1,"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/posts\/112178\/revisions"}],"predecessor-version":[{"id":112183,"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/posts\/112178\/revisions\/112183"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/media\/112179"}],"wp:attachment":[{"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/media?parent=112178"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/categories?post=112178"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kamucalisani.net\/index.php\/wp-json\/wp\/v2\/tags?post=112178"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}