Runner Tracks

From the news of the odd department, NASA researchers have recently declared rocks as ice sailing entities.
Tip of the Helmet George Gerhardt.

What moves the sailing stones of Death Valley?
…the rock movements occurred during a rare combination of conditions in winter. There had to be a shallow layer of water in the dry lake bed and nighttime temperatures cold enough for the formation of a thin layer of ice. On sunny days, melting caused the ice to break into large floating panels that, driven by light winds, pushed against the rocks to move them, leaving tracks on the desert floor. Read more.

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