The technical term for this is an iridescence cloud. This happens when sunlight hits tiny ice crystals or water droplets near ...

Tuesday evening, if you happened to be looking up, you may have seen some rainbow-esqe clouds high in the sky.

A beautiful and relatively rare sight was captured Wednesday evening over Palm Beach County as a rainbow cloud formed.

Ice crystals in Earth's atmosphere sometimes align just right to create various striking visual effects, from a halo around ...

Refraction off of raindrops causes a rainbow to form. The sunlight needs to be behind you. It can also be hard to see cloud iridescence because the cloud is usually close to where the sun is in ...