Scientist Figures Out How Those Big-Ass 'Sailing Stones' Move Themselves Across Death Valley - Core77Scientist Figures Out How Those Big-Ass 'Sailing Stones' Move Themselves Across Death Valley "Racetrack Playa" sounds like the screenname of an online teenager you're competing against in Need for Speed, but scientists recognize it as the name of a dried-up lake in Death Valley. For a century, scientific minds have been puzzled by a well-documented, poorly-understood phenomenon occuring at Racetra
