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:
-
World Water Day
-
A new park with a new mission
-
Lake Misurina, Dolomites, Italy
-
Bavljenac Island
-
Barracudas at Shark Reef, Ras Mohammed National Park, Sinai Peninsula, Egypt
-
Train crossing the Tadami River in Japan
-
Telašćica Nature Park, Dugi Otok, Croatia
-
Short-eared owl
-
SantaPark, Lapland, Finland
-
Cue up the tango music
-
Happy Fathers Day!
-
Misool Island, Indonesia
-
What happened to these clouds?
-
Methow Valley, North Cascades, Washington
-
World Wildlife Day
-
Burchells zebras for International Zebra Day
-
Wayag Islands in the Raja Ampat Islands of Indonesia
-
World Penguin Day
-
Here s looking at you
-
Cuban tody, Alejandro de Humboldt National Park, Cuba
-
Dolomites
-
It s Mountain Day in Japan
-
Happy Mothers Day!
-
Road to Sa Calobra, Majorca, Spain
-
Moody skies over Valletta
-
Lavender field, Hertfordshire, England
-
A Welsh wonder turns 70
-
Wallabies at sunrise, Australia
-
Minnesota State Capitol in St. Paul, Minnesota
-
Manatee Appreciation Day
Bing Wallpaper Gallery

