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One of the coolest things you might ever see is a valley of rocks moving along the dessert floor, all by themselves. You can’t just go anywhere and see it, and it doesn’t happen all the time, but at Racetrack Playa in California you can see everything from small pebbles to ginormous boulders weighing over 700 pounds skate across the desert floor, leaving behind a noticeable track as a monument of its movement.

Scientists have been trying for years to explain how the rocks in this one area are able to move unassisted and have as many theories as a desert cactus has thorns.

Scientists have spent countless hours observing, debating and collecting data and finally they have an answer, maybe. All theories have been researched, everything from the ground is uneven and the rocks are slowly sliding down to high winds are moving the rocks to magnetic pull is causing the rocks to move based on their geological makeup. The most believable theory is that due to extremely cold winter nights and the air freezing at ground level, a perfect storm, so to say, must happen for the rocks to move.

After the large rocks are frozen to the nighttime ground, the sun begins to rise and warm things up allowing the ice to melt. Once that happens the rocks are able to “skim” across the icy surface until it’s melted. This theory works really well until you factor in that the scientists have not been able to prove this on small pebbles and rocks, which leaves them back with no real answer. It’s an unsolved mystery and it’s back to the think tank for this one.

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How do those rocks roll?

How do those rocks roll?

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