As the 20th century ends and we approach the beginning of a new millennium, future generations will look back and recall the leaving of our home planet as a defining moment in the history of humankind. The story of Apollo has been told and retold many times by those fortunate enough to have experienced space travel first-hand--the astronauts themselves. Those who managed to leave the cradle of the Earth and walk upon the surface of the Moon offer a unique perspective shared firsthand by only a handful of people chosen to represent humankind in the culmination of this great adventure. As we...