20-05-19 我国的嫦娥四号探测器已经在月球背面度过500个地球日。着陆器和玉兔二号月球车在月球背面结束了寒冷的月夜休眠，迎来第18月昼工作期。 Chinas Change-4 probe has survived 500 Earth days on the far side of the moon. The lander and the rover Yutu-2 have resumed...