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In California’s Death Valley National Park, massive stones, some weighing up to 700 pounds (317 kg), move on their own, leaving behind long, winding trails.
Known as “sailing stones,” these rocks seem to glide across the desert floor. However, no one has ever seen them move in real-time, sparking decades of curiosity among scientists and visitors alike.
While the exact process remained a mystery for years, researchers now believe the movement is caused by a combination of factors.
In rare winter conditions, a thin layer of water freezes beneath the stones, forming sheets of ice that, when coupled with strong winds, help propel the rocks across the slick, muddy ground.
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