The moon is once again a popular destination, as several space-faring nations are talking about setting up bases there. One reason would be to mine fuel for future fusion reactors. The fuel in this case is helium-3, a lighter isotope of the helium used in balloons. In high energy collisions, helium-3 fuses with other nuclei to release more energy and less waste than the reactions in traditional nuclear reactors. "If we can show that we can burn helium-3, it is a much cleaner and safer energy source than other nuclear fuels," said Gerald Kulcinski, director of the Fusion Technology Institute...
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