clarification and uses for He3 (Score 1)

First, its clear from the cnn article that what they found was simply He3, which is not found naturally on earth, and is instead gotten from the refinement process of plutonium. He4, the much more common isotope, is found in large underground deposits. As far as uses for He3, first on my mind is its use in cryogenics. One of the most common methods of acheiving very low temperatures (down to .008 K) involves the use of a He3 He4 mixture in what is called a dilution refridgerator. In my lab I have something like 30 liter-atmospheres of He3 that I use for just this purpose. Talk about He3 for use as fusion fuel notwithstanding (and something I'm not at all aware of), He3 is already a very important isotope.