 The documentary-like film "Destination Moon" advocated a Space Race with an unspecified foreign power almost a decade before such an idea became commonplace, and was promoted by an unprecedented publicity campaign in print publications.Many of the astronauts and others working in the U.S. space program grew up on a diet of the Heinlein juveniles, best evidenced by the naming of a crater on Mars after him, and a tribute interspersed by the Apollo 15 astronauts into their radio conversations while on the moon.Heinlein was also a guest commentator (along with fellow sci-fi author Arthur C. Clarke) for Walter Cronkite's coverage of the Apollo 11 Moon landing.