American author, and a proponent of various theories about NASA, lost alien civilizations on the Moon and on Mars and other related topics.
His writings claim that advanced civilizations exist or once existed on the Moon, Mars and on some of the moons of Jupiter and Saturn, and that NASA and the United States government have conspired to keep these facts secret.
One of his most known theories is the "Face on the moon" which he claimed was a statue of a face.