Orphans of the Sky

About “Orphans of the Sky”

A 1963 novel by Robert A. Heinlein. Aboard a generation ship five miles long and 2000 feet in diameter, inhabitants believe the ship is the entire universe, having long forgotten the mission and heritage of their forebears and no longer believing anything exists outside it. A man named Hugh Hoyland, more curious than his fellow inhabitants, reads the Forbidden Books, enters the Sacred Place no one else dares to enter, and sees the stars for the first time, grasping the shocking truth.