They found ice a few years ago. It is partly why there is all the investment now. The whole moon as base for staging to Mars. I thought you and I discussed this on another thread. maybe that was someone else. 

Do they believe water is on the moon?
I thought it was just very dusty and dry. 

Satosora

Correct. I conflated far side and sunny vs polar or dark areas,  especially in deep craters , where they hope lots of water (ice) is located. 

TNStacker

science

China probe lands on moon’s far side in first-ever sample retrieval mission

There isn't a sunny and shady side of the moon, FYI. There are some places that are always in shadows near the poles, but basically everywhere else is sunny and dark about half the time. 
