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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This grizzly has Napping Day down
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Lake Tai s cherry trees in bloom
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Veterans Day
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Chestnut-headed bee-eaters, Bardia National Park, Nepal
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Happy Mother s Day!
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Four little birds sitting in a tree…
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New Year s Day
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Bobbio, Italy
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Scotts Bluff National Monument, Gering, Nebraska
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Cheetah in Ngorongoro Conservation Area, Tanzania
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World Chocolate Day
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The birthplace of Cinco de Mayo
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San Blas Islands, Panama
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Skyscraper Day
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‘Ocian in view! O! The joy.’
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Aït Benhaddou, Morocco
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Construction workers resting above Manhattan
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Saint Andrews Day
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This view is brought to you by…
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Maya site of Copán
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Great Backyard Bird Count
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International Day of the World s Indigenous Peoples
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April Fools Day
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Adorably evolutionary sea sheep
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A visit to Limerick on Limerick Day
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A red fox on the Swiss side of the Jura Mountain range
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Naxos in the Cyclades Islands of Greece
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Native American Heritage Month
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International Day of Forests
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Honoring the fallen
Bing Wallpaper Gallery

