p. 95: The Story of Gods and Planets
The five planets visible to the unaided eye were named after figures from Roman mythology, a tradition followed when Uranus and Neptune were discovered. Mercury, visible only for short periods of time, was named after the fleet messenger God. Venus was named for the goddess of love, no doubt for its shining brilliance in the sky. Mars was named after the god of war. Jupiter was named after the Roman uber-deity who ruled the heavens. Sluggish Saturn was named for the god of agriculture. Mesopotamian astronomers merely referred to it as “the old sheep.”
Stay tuned.