A rainbow is a pretty well known phenomenon where light from the sun reflects off precipitation in the atmosphere (rain basically, hence the name) and causes a spectrum of light to appear in the sky. If you read this page regularly you probably suspect that this post isn’t going to be about rainbows, and you’re almost right. This is about Moonbows, a term that originates with Nick Whelan who sighted one of the first documented Moonbows in Eastern Utah.
A lunar rainbow is produced when light reflects off the surface of the moon before hitting precipitation creating a beatiful pure white rainbow. Moonbows are quite faint compared to regular rainbows, due to the smaller amount of light reflected from the surface of the moon and, as a result, almost impossible to catch on film. Even when one is photographed the colours of the spectrum are shown rather than the true white look. Moonbows can be most easily viewed when the moon is full and low in a very dark sky while rain is falling. This combination of elements means that the subtle beauty of lunar rainbows are much more rarely seen than regular daylight rainbows.