Periods of rain alternated with sunshine in Santa Cruz Monday to provide optimal conditions for rainbows, and multiple prismatic feasts were present locally during the day.

Watch: This photographer's footage of a double rainbow, as seen from a trail in the Golden Gate National Recreation Area, ...

Throughout history, rainbows have been seen as a bridge between heaven and earth, often considered portals to higher realms. They are believed to carry a certain spiritual energy that can be ...

Thursday, April 3rd, is National Find a Rainbow Day. Hawai'i, the "Rainbow Capitol of the World," is known for its vibrant Ānuenue (rainbows), but climate change threatens their future. A ...

Rainbows happen when sunlight is refracted and dispersed in drops of rain or mist. Water is denser than air, so sunlight ...

Hawaii's regular sunshine, short rain showers and clean air come together to create some of the planet's best conditions for viewing rainbows. They're such a frequent sight that a University of Hawaii ...