Alien (film) disguise imaginative poverty". In a 1980 episode of "Sneak Previews" discussing science fiction films of the 1950s and 1970s, critics Gene Siskel and Roger Ebert were critical of "Alien". Ebert called it "basically just an intergalactic haunted house thriller set inside a spaceship" and one of several science fiction pictures that were "real disappointments" compared to "Star Wars", "Close Encounters of the Third Kind", and "", though he did compliment the early scene of the "Nostromo" crew exploring the alien planet as showing "real imagination". However, the film later made it onto Ebert's "Great Movies" list, where he gave it
Evolving the Alien Evolving the Alien Evolving the Alien: The Science of Extraterrestrial Life (published in the US, and UK second edition as What Does a Martian Look Like?: The Science of Extraterrestrial Life) is a 2002 popular science book about xenobiology by biologist Jack Cohen and mathematician Ian Stewart. The concept for the book originated with a lecture that Cohen had revised over many years, which he called POLOOP, for "Possibility of Life on Other Planets". Cohen and Stewart argue against a conception of extraterrestrial life that assumes life can only evolve in environments similar to Earth (the so-called Rare Earth hypothesis),