Moving rocks

The mystery of Death Valley's moving rocks on the Racetrack playa has been resolved. There were several theories for the strange activity. But Richard Norris, a paleobiologist at Scripps Institution of Oceanography, and his cousin James Norris, a research engineer, were the first to actually photograph rocks in motion. They are lead authors of a peer-reviewed study of the phenomenon published in the online scientific journal Plos One.
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