“Billy” Eduard Albert Meier (born February 3, 1937) is a citizen of Switzerland who is the source of many controversial alleged UFO photographs which he presents in support of his claim that he is in contact with extraterrestrials. In addition, he has also presented other controversial material during the 1970s such as metal samples, sound recordings and film-footage. Meier reports regular contacts with extraterrestrials he calls the Plejaren. Meier claims that the Plejaren look similar in appearance to humans, that the Plejaren homeworld is called Erra, and that is located in a dimension which is a fraction of a second shifted from our own dimension, about 80 light years beyond the Pleiades, an open star cluster. The Plejaren were given the name Pleiadians by Meier up to 1995.