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There’s something weird going on in Death Valley National Park: these mysterious “sailing stones” are moving across the desert floor, known as Racetrack Playa— all on their own. For almost a century, scientists were stumped as to how the rocks were able to move, proposing everything from aliens to really, really strong breezes, but with the development of new technology they’ve started to narrow in on a solid hypothesis.
The stones were first discovered in the early 1900s, and people were immediately mystified. The rocks, which range in size ...