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:
-
A viewer with a view
-
Gray days ahead in Monterey
-
All in a day s work
-
A river runs through it
-
Let the Highland games begin
-
Does this shark have an Irish accent?
-
The circular castle of Cornwall
-
Computer Science Education Week
-
Earth seen from the International Space Station
-
World Frog Day
-
Giving Tuesday
-
Patriot Day
-
Road to Sa Calobra, Majorca, Spain
-
It s Bermuda s big day
-
A peek behind the royal curtain
-
Relationship status: It s complicated
-
Bald cypress trees in Georgia
-
Birds of the Drömling
-
Chapada dos Veadeiros National Park shines
-
Falling for Rioja
-
Upstate autumn
-
Ingenuity in action on the Santa Monica Pier
-
Yosemite National Park turns 132
-
The Grand Départ: Tour de France begins
-
Venice Skatepark, Los Angeles, California
-
Weaverbird nests at Kenya’s Samburu National Reserve
-
Arctic fox in Norway
-
Is there a bug-egg emoji for this?
-
Feeling chic on Fashion Week
-
How Quảng Ngãi got its grove back