For the past decade, geologists and scientists are puzzled by the mysterious movement of stones in Racetrack Playa, Death valley. These stones would weigh more or less like a man and yet they slide on the ground and leave trails behind them.
The mysterious sailing stones of Death Valley have been discovered to slide over valleys that people do not live in. These valleys are filled with dry cracking muddy ground during summer and ice during winter.
Sailing stones, sliding rocks, and moving rocks all refer to a geological phenomenon where rocks move in long tracks along a smooth valley floor without human or animal intervention. They have been recorded and studied in a number of places around Racetrack Playa, Death Valley, where the number and length of travel grooves are notable. The force behind their movement is not confirmed and is the subject of research.
The stones move only every two or three years and most tracks develop over three or four years. Stones with rough bottoms leave straight striated tracks while those with smooth bottoms wander. Stones sometimes turn over, exposing another edge to the ground and leaving a different track in the stone’s wake. (Wikipedia – source)
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