As National Park Week continues, we"re turning our attention to the vivid colors of the Grand Prismatic Spring in Yellowstone National Park. Its intense rainbow hues are formed by cycles of hot water rising, cooling, and falling—creating rings of distinct temperatures inside the spring. The clear, blue center is the hottest part, with almost nothing living in it. But the other rings are home to various microorganisms that produce bands of distinct colors ranging from green to orange to red.
Where do those colors come from?
Today in History
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Reflecting on one of the world s strangest rivers
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Where do those colors come from?
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Tigh Mor Trossachs on Loch Achray, Scotland
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Amur leopard cat, Russia
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Amelia Earhart
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Here, fishy!
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A rock in a wild place
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There’s a dog in there somewhere
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Siblings Day
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Florentine garden brings generations together
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Pining for spring
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Wooden path to Kennedy Lake, Vancouver Island, Canada
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Celebrating World Art Day
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Celebrating National Panda Day
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National Take a Hike Day
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Redwood National and State Parks, California
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Manatee Appreciation Day
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World Environment Day
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Get the bear facts
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It s National Hispanic Heritage Month
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By the light of the fireflies
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US Coast Guard: Protecting us for 105 years
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Happy trails for the 21st century
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A grand event
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Earth seen from the International Space Station
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The Crown Jewel of the North Atlantic
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In the footsteps of Leopold Bloom
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St. Patricks Day
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Corona Arch near Moab, Utah
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Bridges to the past
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