In the summer of 2005, I was standing in Astronaut Edgar Mitchell's Lake Worth office just minutes before I needed to catch a flight back to Oklahoma. All manner of Apollo memorabilia hung on the walls, including photos of his Apollo mission and his walk on the lunar surface. Mitchell was sitting at his desk in the corner. As I stooped to tell his beloved dog, Roscoe, goodbye, I turned to the door and noticed a black and white photo on a wall,...