"Man" does sound better to me. It's not sexist--we all know that "man" is short for "human".
To be more accurate, they should have said "To boldly go where few have gone before." But of course, it doesn't have much poetry to it.
Btw, Armstrong did say "One small step for a man. One giant leap for mankind." Part of the transmission was lost for a split second. But I think it's fine either way.
To be more accurate, they should have said "To boldly go where few have gone before." But of course, it doesn't have much poetry to it.

Btw, Armstrong did say "One small step for a man. One giant leap for mankind." Part of the transmission was lost for a split second. But I think it's fine either way.