On a flat dry lakebed in Death Valley National Park, heavy rocks sit at the end of long grooves they...
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
On a flat dry lakebed in Death Valley National Park, heavy rocks sit at the end of long grooves they have plowed across the mud. The trails run for tens of...
Author: Space Daily
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