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Sailing Stones, USA

Sailing stones are an amazing geological phenomenon where rocks or stones slide from one place to another leaving a trail behind. For decades this has left scientists, geologists and theorists baffled. These famous mystery occurs at various places, the most famous one being Racetrack Playa, Death Valley National Park in California. For many years, there have been several theories explaining this phenomenon but none could breakthrough. But, in 2006 the mystery was cracked by a NASA scientist by name Ralph Lorenz. It explains that wind drives these rocks which weigh as much as 700 lbs. (318 kilograms) to move up to 820 feet (250 meters) when large floating ice sheets break during sunny days and the ice panels slide.