In one of the hottest and driest parts of the world, there is a phenomenon that is most unexpected. At a remote dry lake bed in the world-famous Death.

For decades, visitors to Death Valley found something impossible — heavy rocks gliding across the desert floor, leaving long trails behind them. No one ever saw them move, and theories ranged from ...

For decades, rocks in Death Valley’s Racetrack Playa appeared to move on their own. Scientists have now discovered that thin ...