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Scientists Discover Massive New Magma Chamber Under Yellowstone

The Grand Prismatic hot spring in Yellowstone National Park is among the park's myriad hydrothermal features created by the fact that Yellowstone is a supervolcano. (AP)
The Grand Prismatic hot spring in Yellowstone National Park is among the park's myriad hydrothermal features created by the fact that Yellowstone is a supervolcano. (AP)

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