Person
The American astronaut. A story that he heard the call to prayer on the moon and became a Muslim is a legend with no support.
What it means
The story circulated after 1969 that Armstrong heard a call to prayer on the moon, and later converted. It has been repeated in sermons and by e-mail, and there is no evidence for it. He never became a Muslim.
What the sources say
Muslim scholars generally decline to rest the case for Islam on such stories. The Quran’s claims are made in its own words, and do not depend on a report of this kind.