That's one small word for astronaut Neil Armstrong, one giant revision for grammar sticklers everywhere. An Australian computer programmer says he found the missing "a" from Armstrong's famous first words from the moon in 1969, when the world heard the phrase, "That's one small step for man, one giant leap for mankind." The story was reported in Saturday's editions of the Houston Chronicle. Some historians and critics have dogged Armstrong for not saying the more dramatic and grammatically correct, "One small step for a man . . ." in the version he transmitted to NASA's Mission Control. Without the missing...