It's actually Helium-3, which can be used as a source of energy in nuclear power plants, and at least theoretically is a better source of nuclear power than other sources. Because it's a gas on earth there's not a ton, but it's thought solar winds may have allowed more to be embedded in the lunar crust.
To clarify above comment, it would be used in Nuclear Fusion power, of which we have yet to invent a practical power producing device. We have produced reactors capable of producing net positive energy, but not at an industrial scale.
It's actually Helium-3, which can be used as a source of energy in nuclear power plants, and at least theoretically is a better source of nuclear power than other sources. Because it's a gas on earth there's not a ton, but it's thought solar winds may have allowed more to be embedded in the lunar crust.
To clarify above comment, it would be used in Nuclear Fusion power, of which we have yet to invent a practical power producing device. We have produced reactors capable of producing net positive energy, but not at an industrial scale.