摘要：China is hoping that its Chang’e-4 mission will give scientists a better idea of the composition (组成,构成)of the moon itself and maybe even reveal its potential for supporting life. The mission, which has many moving parts including a lander(着陆器) and a rover(探测车),will target the far side of the moon for the first time ever. The launch of the lander and onboard rover is scheduled for Dec. 8, 2018 and the yearlong mission will have many scientific aims. But first, upon landing, the lander will shoot (拍摄)images and takeradiation readings ( 读数 ) from space.