Ed Krupp is an astronomer and Director of Griffith Observatory in Los Angeles. Recognized internationally as an expert on ancient, prehistoric, and traditional astronomy, Dr. Krupp has visited more than 1,700 sites throughout the world and regularly leads field study tours to exotic locations that have astronomical and archaeological interest.
He is the author of several books on the celestial component of belief systems, including In Search of Ancient Astronomies and Archaeoastronomy and the Roots of Science.