{"id":161027,"date":"2021-05-02T13:33:25","date_gmt":"2021-05-02T11:33:25","guid":{"rendered":"https:\/\/osr.org\/?p=161027"},"modified":"2021-05-02T13:35:50","modified_gmt":"2021-05-02T11:35:50","slug":"161027","status":"publish","type":"post","link":"https:\/\/osr.org\/tr\/blog\/astronomi\/161027\/","title":{"rendered":"Asteroit \u00e7arpmas\u0131na haz\u0131r m\u0131y\u0131z?"},"content":{"rendered":"
D\u00fcnyan\u0131n d\u00f6rt bir yan\u0131ndaki bilim insanlar\u0131, bu hafta D\u00fcnya\u2019ya do\u011fru gelen hayali bir asteroid i\u00e7in \u00e7al\u0131\u015ft\u0131. ABD ve Avrupa uzay ajanslar\u0131ndan bir grup uzman, NASA liderli\u011finde bir hafta s\u00fcren ve varsay\u0131msal bir senaryo ile olu\u015fturulan bir tatbikata kat\u0131ld\u0131. 35 milyon mil uzakta bir asteroid gezegene yakla\u015f\u0131yor ve alt\u0131 ay i\u00e7inde D\u00fcnya’y\u0131 vurabilir.<\/p>\n
\u00c7al\u0131\u015fman\u0131n her ge\u00e7en g\u00fcn\u00fcnde kat\u0131l\u0131mc\u0131lar asteroidin boyutu, y\u00f6r\u00fcngesi ve \u00e7arpma \u015fans\u0131 hakk\u0131nda daha fazla \u015fey \u00f6\u011frendi. Daha sonra da uzay ta\u015f\u0131n\u0131 durdurmak i\u00e7in herhangi bir \u015fey yap\u0131l\u0131p yap\u0131lamayaca\u011f\u0131n\u0131 g\u00f6rmek i\u00e7in i\u015f birli\u011fi yapmak ve teknolojik bilgilerini kullanmak zorunda kald\u0131lar.<\/p>\n
Maalesef, uzmanlar yetersiz kald\u0131. Grup, sim\u00fclasyonun alt\u0131 ayl\u0131k zaman \u00e7er\u00e7evesi g\u00f6z \u00f6n\u00fcne al\u0131nd\u0131\u011f\u0131nda, D\u00fcnya\u2019n\u0131n mevcut teknolojilerinin hi\u00e7birinin varsay\u0131msal asteroidin \u00e7arpmas\u0131n\u0131 engelleyemeyece\u011fini belirledi. Ve senaryoya g\u00f6re de asteroit Do\u011fu Avrupa\u2019ya \u00e7arpt\u0131.<\/p>\n
\u015eu anda hi\u00e7bir asteroit D\u00fcnya i\u00e7in bir tehdit olu\u015fturmuyor. Ancak 460 fit veya daha b\u00fcy\u00fck asteroitlerin tahminen \u00fc\u00e7te ikisi ve \u00f6nemli \u00f6l\u00e7\u00fcde hasara yol a\u00e7acak kadar b\u00fcy\u00fck olanlar\u0131 hen\u00fcz ke\u015ffedilmemi\u015f durumda. Bu nedenle de NASA ve di\u011fer kurumlar b\u00f6yle bir duruma haz\u0131rlanmaya \u00e7al\u0131\u015f\u0131yor.<\/p>\n
Nas\u0131l haz\u0131rlanaca\u011f\u0131z?<\/span><\/h2>\n Sim\u00fclasyondaki hayali asteroide 2021PDC ad\u0131 verildi. NASA\u2019n\u0131n senaryosuna g\u00f6re, uzay kayas\u0131 ilk olarak 19 Nisan\u2019da tespit edildi ve ke\u015fif tarihinden alt\u0131 ay sonra; 20 Ekim\u2019de de gezegenimize %5 oran\u0131nda \u00e7arpt\u0131\u011f\u0131 d\u00fc\u015f\u00fcn\u00fcld\u00fc.<\/p>\n Ancak tatbikat\u0131n 2. g\u00fcn\u00fc, yeni etki-y\u00f6r\u00fcnge hesaplamalar\u0131n\u0131n 2021PDC\u2019nin Avrupa\u2019y\u0131 veya Kuzey Afrika\u2019y\u0131 vuraca\u011f\u0131 anla\u015f\u0131ld\u0131. Sim\u00fclasyon kat\u0131l\u0131mc\u0131lar\u0131, uzay arac\u0131n\u0131n asteroidi yok etmeye veya yolundan sapt\u0131rmaya \u00e7al\u0131\u015fabilece\u011fi \u00e7e\u015fitli g\u00f6revleri de\u011ferlendirdiler. Ancak, bu t\u00fcr g\u00f6revlerin asteroidin \u00e7arpmas\u0131ndan k\u0131sa bir s\u00fcre \u00f6nce tamamlanamayaca\u011f\u0131 kan\u0131s\u0131na vard\u0131lar.<\/p>\n