Who owns the Moon?
A legal loophole has made it impossible to say who can claim the moon - but with a wealth of minerals and "rare earth" elements, plus huge potential for space exploration, we'll have to get up there and fight it out.
There would be nothing illegal about such an operation because international laws covering the moon are “way, way behind”, as Holdaway puts it. In theory, anyone who could manage it (and afford it) could go to the moon tomorrow, dig out a huge chunk of lunar rock, bring it back to earth and sell it off to the highest bidder. The Chinese could take the moon apart and sell it bit by bit without breaking international law. The question we have to ask ourselves is simple: do we see a need to prevent that happening?
The moon’s bounty is not fanciful science fiction. “There is stuff on the moon to mine – no doubt about it,” Holdaway says. We know that minerals that are hard to find on earth, such as the “rare earth” elements and the metals titanium and uranium, are abundant up there. But the main prize is the lighter isotope of helium, known as helium-3. This gas is the critical fuel for nuclear fusion reactors, which promise an energy yield many times higher than the present generation of fission-powered reactors. Helium-3 costs roughly $10m a kilo. Though we don’t yet have commercial fusion reactors, these might not be far off. When they arrive, the demand for helium-3 will outstrip supply, and the easiest place to get more will be from moon rock. It couldn’t be easier: heat the rock and the gas comes out.