A fog bow is a similar phenomenon to a rainbow; however, as its name suggests, it appears as a bow in fog rather than rain. Because of the very small size of water droplets that cause fog—smaller than 0.05 millimeters (0.0020 in)—the fog bow has only very weak colors, with a red outer edge and bluish inner edge.

Kelsea Ballerini performs at the 59th Annual Country Music Association Awards in Nashville, Tennessee, U.S., November 19, 2025. (Photo by Seth Herald/Reuters)

A trader weighs tobacco at a market in el-Fasher, in North Darfur February 5, 2015. Tobacco is one of the North Darfur war zone's main cash crops. (Photo by Mohamed Nureldin Abdallah/Reuters)

People line up to pay inside a Makro supermarket in Caracas, January 9, 2015. Venezuela's socialist government decreed an “economic emergency” on Friday that will expand its powers and published the first data in a year that shows the depth of a recession fueled by low oil prices and a sputtering state-led model. (Photo by Jorge Silva/Reuters)

Lea Meyer of Germany falls at the water in the women's 3000m Steeplechase heats at the World Athletics Championships Oregon22 at Hayward Field in Eugene, Oregon, USA, 16 July 2022. (Photo by Robert Ghement/EPA/EFE)

Argentina's President Javier Milei poses for pictures after ringing the opening bell at the New York Stock Exchange in New York, Monday, September 23, 2024. (Photo by Seth Wenig/AP Photo)