July 26-August 7, 2011 marks the 40th anniversary of the Apollo 15 space flight. As command module pilot for the Apollo 15 mission to the Moon, Al Worden flew on what is widely regarded as the greatest exploration mission that humans have ever attempted. Worden has been listed in the Guinness Book of World Records as the "most isolated human being" during his time alone in the command module Endeavour. He is one of only 24 people who have journeyed to the Moon, and has exhilarating stories of his mission. - Publisher.