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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Behold the mighty Aldeyjarfoss
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Alstrom Point, Lake Powell, Utah
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The dancing trees of Sumba Island
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Plum blossoms in China
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Prayer flags in Phobjikha Valley, Bhutan
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Bluespotted ribbontail ray
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World Childrens Day
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World Oceans Day
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Happy Mothers Day!
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Atlantic puffin, Iceland
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National Trails Day
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An emerald isle of the Emerald Isle
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Put your helmet on, we’re going for a hike
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Summer solstice
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Bear Hole Brook, Catskill Mountains, New York
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Father s Day
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Dunquin Pier, County Kerry, Ireland
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An icy extravaganza
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Astronomy Day
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St. Patricks Day
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Museum Mile Festival
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And the skies filled with bats…
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It’s Endangered Species Day
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Alam-Pedja Nature Reserve, Estonia
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Assembling the Smithsonian
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Bird s-eye view on World Environment Day
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Flag Day
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The ‘Living Forest’ in Biscay, Spain
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In the Highlands for Saint Andrew s Day
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International Archaeology Day