Updated: May 7, 2019
Rainbows are made when sunlight bends as it passes through rain drops, dispersing the light into its component colors, which travel at different frequencies. The color violet travels at the highest frequency, and red travels at the lowest frequency (mostly just around the holidays). Many of us have seen a “double rainbow”, but third- and fourth-order rainbows have also been observed, and even thirteenth-order rainbows exist in theory. Whose job it is to publish essays on rainbow theory is still unclear, but we hope their family is supportive. In Greek mythology, Iris, the goddess of the rainbow, would send messages to earth, which was almost always a sign that she’d been drinking.