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:
-
Social climbing
-
American robin
-
Spring equinox
-
All eyes on moths
-
Manatee Appreciation Day
-
Maloja, Switzerland
-
Fall Astronomy Week
-
Goodbye, 2020!
-
Marine Day, Japan
-
Champaka Sarasi, Shivamogga, Karnataka, India
-
Anza-Borrego Desert State Park, California
-
Diwali
-
Plitvice Lakes National Park, Croatia
-
Old Town Quito
-
European beech forest, Belgium
-
A legend and a legendary home
-
Bridge over the River Tara
-
Groundhog Day arrives—beyond a shadow of a doubt
-
The party’s just starting
-
Wicker fields in Cañamares, Spain
-
Winterpret on ice
-
Winter solstice
-
Happy Holi!
-
Pi Day
-
Mountain hare hopping into Lunar New Year
-
Let s ride! It s Roller Coaster Day
-
A tree of many memories
-
Lupine fields, Snæfellsnes, Iceland
-
Welcome to the Hoh
-
50 years of the Endangered Species Act