Mysterious and beautiful, the Moon has been a source of awe and inspiration to mankind for millennia. Now it is the centre of a space race to mine rare minerals to fuel our future - smart phones, space-age solar panels and possibly even a future colony of Earthlings.
"We know that there's water on the Moon, which is a game-changer for the solar system. Water is rocket fuel. It also can support life and agriculture. So exploring the Moon commercially is a first step towards making the Moon part of our world, what humanity considers our world," says Bob Richards, CEO of Silicon Valley-based Moon Express, one of 25 companies racing to win the $30m in Google Lunar X Prizes.