A NASA scientist has managed to break the case of the sailing rocks

When visitors stumbled upon scores of heavy stones that appeared to have moved across the dried lake bed of Racetrack Playa in California’s Death Valley National Park, leaving a tell-tale trail in their wake, scientists were baffled. How had so many boulders, some weighing 300kg, moved as much as 250m across this remote part of … Continue reading A NASA scientist has managed to break the case of the sailing rocks