Here is the compelling story of the launching of Prometheus -- Earth's first true spaceship -- and of the men who made it happen. Dirk Alexson: Chronicler of the greatest space adventure of all time, he was chosen to immortalize the incredible story of the men and their heroic mission. Sir Robert Derwent: Direct-General of Interplanetary -- London Headquarters for the international space-flight project -- he was the man who got the mission off the…