Steam Vent at Yellowstone

Fumaroles, often known as steam vents, are a familiar attraction at Yellowstone National Park. Steam vents are technically hot springs, but the small amount of water boils away before it reaches the surface causing extreme amounts of steam. Steam vents are known for their hissing sound, similar to that of a tea kettle.

Photograph by Debra Jones, MyShot

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When a Sleeping Giant Awakes Article

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Past volcanic eruptions that have taken place at Yellowstone National Park have been global disasters. Today, scientists are trying to predict how this ticking time bomb will explode—or fizzle out.

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Photograph by Debra Jones, MyShot

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