In this photo provided China's official Xinhnua News Agency, passengers from the trapped Russian vessel MV Akademik Shokalskiy, seen at right, prepare to board the Chinese helicopter Xueying 12 in the Antarctic Thursday, Jan. 2, 2014. A helicopter rescued all 52 passengers from the research ship that has been trapped in Antarctic ice, 1,500 nautical miles south of Hobart, Australia, since Christmas Eve after weather conditions finally cleared enough for the operation Thursday. (AP Photo/Xinhua, Zhang Jiansong) NO SALES