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:
-
Solar Impulse 2 in Honolulu
-
Mountains fit for a queen
-
National Go Birding Day
-
Shhh, the movie is about to start
-
Bow Bridge in Central Park, New York City
-
Desert rose of Qatar
-
This reef is nowhere near the sea…
-
World Turtle Day
-
Jupiter and the Galilean moons
-
Ancient theater of Epidaurus, Greece
-
Why does this panda cub look so happy?
-
Group of giant cuttlefish, Whyalla, South Australia
-
Great horned owl fledglings
-
Puma in Patagonia
-
Oxbow Bend on the Snake River, Grand Teton National Park, Wyoming
-
Happy International Day of Forests!
-
A light on National Hispanic Heritage Month
-
A house of grand scale(s)
-
Kagami-ike, Nagano, Japan
-
Greater flamingos, Lüderitz, Namibia
-
Star Wars Day
-
A big place to shop small
-
Village of Labro, Italy
-
Arrone in Umbria, Italy
-
Dr. Martin Luther King, Jr. Memorial in Washington, DC
-
Christmas Eve
-
European Day of Parks
-
Remembering the Arizona
-
Let’s talk fossils
-
Everglades National Park marks 90 years
Bing Wallpaper Gallery

