For decades the heavy rocks that carve trails across a Death Valley lakebed were never seen moving, until cameras caught them gliding on thin rafts of melting ice pushed by a light wind

spacedaily.com/s-for-decades-the-heavy-...-of-melting-ice-pushed-by-a-light-windOn Racetrack Playa, stones heavy enough to need two hands leave grooves in the dried mud as if they walk. A weather station, fifteen GPS-fitted rocks and a set of time-lapse cameras finally recorded the cause, and it was almost nothing: a few millimeters of windowpane ice and a breeze.

The post For decades the heavy rocks that carve trails across a Death Valley lakebed were never seen moving, until cameras caught them gliding on thin rafts of melting ice pushed by a light wind appeared first on Space Daily.