<p><br>
A rainbow stretches over a section of the 670-mile-long (1,100-kilometer-long) Denali Highway in Alaska. Rainbows are a simple, ordered display of visible light reflected off of water droplets in the atmosphere.</p>
Denali Highway, Alaska
A rainbow stretches over a section of the 670-mile-long (1,100-kilometer-long) Denali Highway in Alaska. Rainbows are a simple, ordered display of visible light reflected off of water droplets in the atmosphere.
Patterns in Nature: Rainbows
See photos of rainbows, from National Geographic.