Baen Books Man Who Sold The Moon/ Orphans Of The Sky

D D Harriman is a billionaire with a dream: the dream of space for all mankind. The method? Anything that works. Maybe, in fact, Harriman goes too far. But he will give us the stars... And, in Orphans of the Sky, Hugh had been taught that, according to the ancient sacred writings, the Ship was on a voyage to faraway Centaurus.