Neil Armstrong, You've Just Walked on the Moon -- What Are You Going to Do Now?

Apollo 11

A pre-Iacocca pitchman for Chrysler, NEIL ARMSTRONG is chairman of a defense electronics firm. He lives on a farm in Ohio, zealously guarding his privacy, granting no interviews on the anniversary of his one small step for a man.

BUZZ ALDRIN bravely wrote about his post-moonwalk nervous breakdown in a 1973 memoir, Return to Earth. He is head of Starcraft Enterprise, a California firm that promotes his ideas for reinvigorating the space program -- some of them outlandish enough to have earned him the sobriquet "the Nutty Professor" in the halls of his ex-employers at NASA.

Apollo 12

ALAN...