After 40 Years, Moon Rocks Still in Demand for Research - NYTimes.com

After 40 Years, Moon Rocks Still in Demand for Research - NYTimes.com: "In the lab, the Moon rocks look nondescript — dark gray basalt, a whitish mineral called anorthosite and mixtures of the two with crystals thrown in. Yet nearly 40 years after the Apollo astronauts brought the first rocks back to Earth, these pieces of the Moon are still providing scientists with new secrets from another world."