Helium-3 is in scarce supply on Earth , much more abundant on the Moon . Used as a fuel for nuclear fusion , there would be almost no radioactive waste . University of California team has built a small reactor to prove 3He would work as fuel . `` The agency has just gotten old and most of the experience is retiring . '' Former Apollo astronaut says NASA needs new space policy , agency and moon return is vital .
Helium-3 is in scarce supply on Earth , much more abundant on the Moon . Used as a fuel for nuclear fusion , there would be almost no radioactive waste . University of California team has built a small reactor to prove 3He would work as fuel . Former Apollo astronaut says NASA needs new space policy , agency and moon return is vital .