More gold -- and other minerals -- in them thar hills?

Though technology has taken much of the guesswork out of mining, mountain ranges are still notoriously difficult environments in which to hunt for valuable minerals. Various methods used to draw a picture of the underground ...

Model predicts number of species yet to be discovered regionally

Many scientists have developed models to predict the total number of species on Earth—including those not yet discovered—of an animal or plant group, but University of Chicago researchers have developed the first such ...

page 4 from 4