China’s Chang’e 6 mission, currently on its way to retrieve a sample of material from the far side of the Moon, will test theories of why the lunar near and far side are so different. Having launched on 3 May, Chang’e 6 is expected to land in early June within the double ringed Apollo basin, which lies inside the even larger South Pole-Aitken basin (SPA). The immense SPA is the largest impact feature of its
