Transcript for ARCHIVAL VIDEO: Neil Armstrong: Did He Say, 'One Small Step for Man,' or 'One Small Step for a Man'?
I have news tonight about one of the most riveting moments of the twentieth century. That may write rewrite the history books it goes back of the moment that Neil Armstrong took the first step on the loan. It was 1969. And what he said to the world was poetry. We've all heard these words. That's why I'm Paul program. Barbara. It has long been believed that Neil Armstrong meant to say one small step for a man but left out the eight. Without it the two halves of the statement are basically redundant. Well now an Australian computer programmer has analyzed the recording with new software and he says even if you can't hear it you can see a picture of a sound way of where the word gay was spoken destroy us that he says for a man. You Platt were on this. It's barely audible. Because it's only 35 milliseconds. Listen one more time. Or all of built around. Well maybe. But will make a leap of faith for the first man on the moon.
This transcript has been automatically generated and may not be 100% accurate.