From The New York Times:
Edgar Mitchell, the sixth man to walk on the moon, appeared on a British radio show to say that he was "privileged enough to be in on the fact that we've been visited on this planet and the U.F.O. phenomena is real."
Mitchell, a member of the Apollo 14 team, has long held these beliefs despite the fact that he himself has never seen neither an alien or a U.F.O. The Times' story has an excellent collection of more information on Mitchell's beliefs.
Mitchell's resurgence in the media was prompted by a radio interview that he did yesterday with a British radio show. Audio of the show is available below.
Past videos of Mitchell: