In Ufology some believers describe Nordic alien extraterrestrials (called Pleiadeans) as originating from this system. They point to similar etchings elsewhere as evidence that extraterrestrials visited many different ancient civilizations. One day, they found a small box containing alien weaponry left behind by careless extraterrestrials. The joke ending features extraterrestrials abducting Harry. The story line revolves around a family of humans living in a community of extraterrestrials. However, the band later chose to focus on themes such as the paranormal and extraterrestrials. The men were apparently attempting to contact extraterrestrials or spirits using psychedelic drugs. The possibility of extraterrestrials remained a widespread speculation as scientific discovery accelerated. They wander drunkenly until they encounter a party of six extraterrestrials, who capture them. The plaque was designed to be understandable by extraterrestrials should they encounter it. Contactees are persons who claim to have experienced contact with extraterrestrials. "Signs" explores the themes of faith, kinship, and extraterrestrials. He also believes that extraterrestrials are real. The extraterrestrials are very advanced, remember. Lunan was not the first to state that the green children may have been extraterrestrials.