Tonight there will be a lunar rainbow at Victoria Falls on the Zambian side, here’s what Wikipedia has to say on the subject:
“A moonbow (also known as a lunar rainbow, black rainbow, white rainbow, lunar bow, or space rainbow) is a rainbow produced by light reflected off the surface of the moon (rather than from direct sunlight) refracting off of moisture in the air. Moonbows are relatively faint, due to the smaller amount of light reflected from the surface of the moon. They are always in the opposite part of the sky from the moon. Because the light is usually too faint to excite the cone color receptors in human eyes, it is difficult for the human eye to discern colors in a moonbow. As a result, they often appear to be white. However, the colors in a moonbow do appear in long exposure photographs.”

The photo above was sent to me by a Guest of the lunar rainbow last year. Tonight will be special, the skies are clear, the moon is a “supermoon” appearing larger than usual and the spray from the Falls is not too high to blur the lunar rainbow.

A wonderful sight, but what else would you expect from one of the natural wonders of the world?