Farmer In The Sky is a 1950 science fiction novel by American writer Robert A. Heinlein about a teenaged boy who emigrates with his family to Jupiter's moon Ganymede, which is in the process of being terraformed. Among Heinlein's juveniles, a condensed version of the novel was published in serial form in Boys' Life magazine (August, September, October, November 1950), under the title "Satellite Scout". The novel was awarded a Retro Hugo in 2001.