In April of 2003, a company called Scaled Composites lifted the veil of secrecy from a longtime research program and introduced SpaceShipOne to the world. And the age of commercial space travel took off . . . like a rocket. This book chronicles the development of the world’s first commercial manned space program--a program that includes an airborne launcher (the White Knight), a space ship (SpaceShipOne), rocket propulsion, avionics, simulator, and full ground support.