China’s first polar fixed-wing aircraft “Xueying 601” is seen at the airport near China’s “Zhongshan” research station in Antarctica in this file photo dated Dec. 8. The aircraft arrived at the airport at the highest point in the South Pole, Dome A, at 5:35 p.m. Sunday, according to the State Marine Office. It was the first time such an aircraft had taken a flight.Xinhua