It’s no surprise that horoscopes and astrology have a long history. The ancient Chinese looked toward eclipses and constellations as omens, and the Babylonians devised a numerical system through the stars. The Greeks made advances in medicine, philosophy and literature through the stars,...

“This is your day to be happy!” reads the daily horoscope website for my sign, Scorpio. It seems like harmless fun—just another way to connect with people around me and get some advice on my life (and love life). But in a world where, accord- ing to the National Science Foundation, more...