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:
-
Mona Vale Rockpool, Sydney, Australia
-
Birds of the Drömling
-
Road to Sa Calobra, Majorca, Spain
-
National Trails Day
-
The Unfinished Obelisk near Aswan, Egypt
-
It’s not a pinecone, it’s a pangolin
-
Antarctica Day
-
Floating market, Kaptai Lake, Bangladesh
-
Waiting for the perfect shot
-
Heron lies the Salton Sea
-
World Sea Turtle Day
-
Arches National Park, Utah
-
The natural ice wall of Misotsuchi, Chichibu, Japan
-
The crossroads of empires
-
Tour de France begins
-
Petroglyphs near Fruita in Capitol Reef National Park, Utah
-
To Roswell, and beyond!
-
World Hello Day
-
Earth Science Week
-
Lake Misurina, Dolomites, Italy
-
Of balloons and lost pantaloons
-
Pamukkale, Turkey
-
Inhale and exhale, it’s Yoga Day
-
Atolls in the Maldives
-
North Cascades National Park at 50
-
Hitsujiyama Park, Saitama Prefecture, Japan
-
Green fields of grain
-
Antarctica Day
-
World Theater Day
-
Horseshoe Bend, Arizona
Bing Wallpaper Gallery

