Moonlight Magic

Rainbows demystified A rainbow forms when sunlight strikes airborne water droplets and is separated into its component spectral colors by characteristics of the water. The separated light is reflected back to our eyes when it strikes the backside of the droplets: Voila—a rainbow! There’s nothing random about a rainbow—despite their seemingly random advent and location in the sky, rainbows follow very specific rules of nature. Draw an imaginary line from…