content: From Wikipedia...  "Helium-3 (3He) from the solar wind, is thought to have accumulated on the Moon's surface over billions of years, but occurs only rarely on Earth. Helium might be present in the Lunar regolith in quantities of 0.01 ppm to 0.05 ppm (depending on soil). In 2006 3He had a market price of about $46,500 per troy ounce ($1500/gram, $1.5M/kg), more than 120 times the value per unit weight of gold and over eight times the value of rhodium." "In the future 3He may have a role as a fuel in thermonuclear fusion reactors. If the technology for converting helium-3 to energy is developed, there is the potential that it would produce 10 times more electricity than fossil fuels. It should require about 100 tonnes of helium-3 to produce the electricity that Earth uses in a year and there should be enough on the moon to provide that much for 10,000 year"  So yeah there is that...