Reta F. Beebe (born October 10, 1936 in Baca County Colorado) is an American astronomer, author, and popularizer of astronomy. She is an expert on the planets Jupiter and Saturn, and the author of Jupiter: The Giant Planet. She is a professor emeritus in the Astronomy Department at New Mexico State University and 2010 winner of the NASA Exceptional Public Service medal.Beebe spent many years helping to plan and manage NASA missions, including the Voyager program missions to the giant planets.