Here’s everything you need to know about rainbows to impress your friends (or search for a pot of gold).

Add Yahoo as a preferred source to see more of our stories on Google. ST. JOSEPH, Mo. (News-Press NOW) — Rainbows are often seen as symbols of luck, and if you spot one, consider yourself lucky.

Father and son, Dr. Walter Placek, Wilkes University professor, and David Placek, a teacher in the Wyoming Valley West School District, conducted science experiments on light and prisms with the third ...