Some days at work, when I am in the Space hall at the Ontario Science Center, I take a close look at the golf-ball-sized Moon rock we have on display.  I think about how this rock was brought back on an Apollo mission over 40 years ago, how it had been an untouched part of the Moon for Billions of years before this, and how it has taught us so much about how the Moon, and subsequently the Earth, formed.  But now it’s time for a new generation of Moon rocks to be analyzed, and China is in the nation...