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New research has revealed more about what lies beneath this iconic and picturesque national park.
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Five people had reportedly been in the vehicle at the time that it had inexplicably driven into the water.
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The unattached appendage had been found floating in the scalding-hot water by park staff earlier this year.
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A visitor has been banned from the park after being caught attempting to use the hot springs to cook chicken.
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It turns out that a supervolcanic eruption at Yellowstone National Park may not happen for a very long time.
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The enormous supervolcano in Yellowstone National Park could erupt with only a few years' warning.
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NASA has come up with an ambitious new plan to cool down the supervolcano by using it as an energy source.
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Wildlife authorities are offering a $5,000 reward to anyone who can help track down those responsible.
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A chamber containing 11,200 cubic miles of molten rock has been found below Yellowstone National Park.
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The famous Morning Glory hot spring pool has turned green due to visitors throwing things in to it.
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Four unidentified figures have been captured in a controversial video recorded through a webcam.
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In the event of an eruption the volcano could spew out 2,000 times the debris of Mount Saint Helen's.
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Scientists investigating what causes a supervolcano to erupt believe that they've found the answer.
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The supervolcano at Yellowstone National Park is believed to be 2.5 times larger than earlier estimates.