The main mystery on Racetrack Playa is how the rocks move, but another, possibly greater mystery, is why some trails don't have rocks.
Photo credit: NASA/GSFC/Mindy Krzykowski/LPSA intern
To read a feature story on the Racetrack Playa go to: www.nasa.gov/topics/earth/features/roving-rocks.html
NASA Goddard Space Flight Center is home to the nation's largest organization of combined scientists, engineers and technologists that build spacecraft, instruments and new technology to study the Earth, the sun, our solar system, and the universe.
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