Starship Troupers is a science fiction series of novels by American author Christopher Stasheff. To date it covers three books: A Company Of Stars, We Open On Venus and A Slight Detour. It also occupies the same continuity as Stasheff's Warlock of Gramarye and Rogue Wizard series. Set in the 26th Century, after the human race has established colonies on distant planets and interstellar commerce supports Terra (Earth, sometimes known affectionately as "Old Earth") and the Terran Sphere of worlds, the novels follow the establishment and subsequent journeys of The Star Theater Company, the first-ever interstellar theatre troupe. The series title, "Starship Troupers", was intended as a pun on Robert Heinlein's noted "Starship Troopers" novel.