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:
-
Composite of photographs from the Apollo 15 mission
-
A Flag Day tradition
-
Cold? What cold?
-
Wooden path to Kennedy Lake, Vancouver Island, Canada
-
A palace for the public
-
Martin Luther King Jr. Day
-
Summer solstice
-
Sweetheart Abbey, Scotland
-
Space Week isnt over yet!
-
International Museum Day
-
Stompin’ with the Big Chief
-
A prison fit for a count
-
Celebrating all things Austen
-
Hawai i Volcanoes National Park at 106
-
American bison
-
Stepping stones in Tollymore Forest Park, Northern Ireland
-
A Portuguese fort takes a star turn
-
Groundhog Day
-
Winter scenery near Kuhmo, Finland
-
Rothenburg ob der Tauber, Bavaria, Germany
-
World Penguin Day
-
Chilling out in the Arctic
-
An island hopper s paradise
-
National Napping Day
-
Singing praises of the oceans
-
Pacific Park, Santa Monica State Beach, California
-
Ingenuity in action on the Santa Monica Pier
-
World Parrot Day
-
A winter light show
-
Registan Square, Samarkand, Uzbekistan
Bing Wallpaper Gallery

