Al Worden really knows how to get away from it all. He was a pilot in the Air Force, then made a major career change in becoming an astronaut. Colonel Worden was the command module pilot on NASA'a Apollo 11 that landed on the moon on July 26, 1971. Worden returned from this historic mission on August 7, 1971. During this time, he became the record holder for the most isolated human being ever. While his companions were roaming around the lunar surface, Worden was floating in lunar orbit. The nearest human beings to Worden at that time were his companions, and they were 2,235 miles (3,600 km) away.