(New York Post, Andy Geller, April 22, 2009) The sixth man to walk on the moon says we are not alone in the universe. Former NASA astronaut Edgar Mitchell, who took part in the 1971 Apollo 14 lunar mission, is certain aliens exist, a fact the United States and other nations are covering up. He made the claim at a news conference in Washington following the fifth annual X-Conference, a meeting of UFO enthusiasts and researchers. CNN quoted Mitchell as saying that mankind has long wondered if we're "alone in the universe. But only in our period do we really have evidence." He added, "I urge those who are doubtful: Read the books, read the lore, start to understand what has really been going on. Because there really is no doubt we are being visited."