Photographer Aaron Watson captured this stunning image of a rare double "moonbow" around 2 a.m. on Aug. 18 from Colorado, U.S., just a day before the Supermoon Blue Moon. "I woke to the sound of ...

This effect is called a lunar halo or a moonbow which is visually similar to a rainbow. There are several ingredients that are needed for this optical effect to happen. First, there must be a ...

A rare moonbow has been spotted in the skies above Devon tonight. This picture was taken in Exeter of the phenomenon. The rare lunar rainbow phenomenon occurs when light from the moon is refracted ...