Updated: September 16, 2022
SCI FI ALIENS PHOTO GALLERY #02
An extraterrestrial or alien is any extraterrestrial lifeform; a lifeform that did not originate on Earth. The word
extraterrestrial means "Outside Earth". The first published use of extraterrestrial as a noun occurred in 1956, during the
Golden Age of Science Fiction. Extraterrestrials are a common theme in modern science-fiction, and also appeared in much
earlier works such as the second-century parody True History by Lucian of Samosata.
Science fiction aliens are both metaphors and real possibilities. One can probe the nature of humanity with aliens that by
contrast illustrate and comment upon human nature. Still, as evidenced by widespread belief in alien visitors (See UFOs) and
efforts to detect extraterrestrial radio signals, humans also crave companionship in a vast, cold universe and aliens may
represent hopeful, compensatory images of the strange friends we have been unable to find. Thus, aliens will likely remain a
central theme in science fiction until we actually encounter them.