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
More Desktop Wallpapers:
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Oktoberfest begins
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Traditional red fishermens cabins, Reine, Norway
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A treaty for science
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Beech trees and wild anemones, Jutland, Denmark
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Sydney Harbour, New South Wales, Australia
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Art and soul
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Take me to the river
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International Dark Sky Week
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Bay Marker Lookout, Sydney Olympic Park, Australia
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National Trails Day
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It s truffle season here in the Dordogne Valley
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Molokini Crater, Maui, Hawaii
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Why do elephants hide in trees?
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May we have this dance?
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Sweet! It’s maple syrup season
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What are we looking at?
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Hungarian Parliament Building, Budapest, Hungary
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Sunbeams across Tartu County, Estonia
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International Kissing Day
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Young black caiman, Tambopata National Reserve, Peru
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That bill s just not going to fit
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Happy Bee Day to you
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Aït Benhaddou, Morocco
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Kochelsee in Bavaria
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GOAL!
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Waimea Canyon and Waipoo Falls, Kauai, Hawaii
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World Laughter Day
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Merry Christmas!
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Autumnal equinox
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Happy New Year!
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