Here's Bill Stone (maverick cave explorer) and his vision of mining on the moon: http://www.ted.com/talks/bill_stone_explores_the_earth_and_space.html http://ww

Here's Bill Stone (maverick cave explorer) and his vision of mining on the moon: http://www.ted.com/talks/bill_stone_explores_the_earth_and_space.html http://www.ted.com/talks/bill_stone_explores_the_earth_and_s...