Two thirds of the world’s geysers are located here at Yellowstone National Park, each with its own unique characteristics. Shown here is the Great Fountain Geyser, which erupts every 9 to 15 hours with sprays that reach 75 feet to over 220 feet in the air. More than just a spectacle, these geysers are evidence of the volcanic activity simmering beneath the surface. Yellowstone’s last major volcanic eruption occurred about 630,000 years ago, and the potential for future activity is the subject of much curiosity—and speculation.
Great Fountain Geyser, Yellowstone National Park, Wyoming
Today in History
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A polar bear near Churchill, Manitoba, Canada
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Happy New Year!
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Halo around the sun
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Friendship Day in the City of Brotherly Love
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Diving into World Oceans Day
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They’re grrrape!
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Arbor Day
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Flag Day
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Lizard of mystery
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Wahclella Falls, Oregon
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Uredd Rest Area, Norway
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A duckling swimming in a water meadow, Suffolk, England
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Cheese! We ll go somewhere where there s cheese!
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Patriot Day
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One giant leap for penguins
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Nubble Island’s only industry
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World Philosophy Day
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Salmon return to the Copper River
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A timeless view of the night sky
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A personal collection becomes an institution
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Park of the Monsters, Bomarzo, Italy
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Earth Day
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Celebrating Bike to Work Week, May 14-18
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Design for Each and All
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Goðafoss waterfall, Iceland
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World Environment Day
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Did they forget to fly south?
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Salzburg, Austria
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Gateway to America
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All in a day s work