If I told you that humanity was going to mine the Moon for rare elements and water ice, you might think it was the plot of a science fiction book I was writing.  However, with the recent strides made by unmanned space missions, coupled with a discovery of water and rare elements near the lunar surface, that story could become fact sooner than you’d think. It’s been 40 years since the Apollo landings on the Moon, and for a long time we naively thought we had discovered everything there was to discover about the Moon.  We assumed it was a big...