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
Spaceship Earth of years' energy conservation aboard our Spaceship Earth. These energy savings have been put into our Spaceship's life-regeneration-guaranteeing bank account for use only in self-starter functions. United Nations Secretary-General U Thant spoke of Spaceship Earth on Earth Day March 21, 1971 at the ceremony of the ringing of the Japanese Peace Bell: "May there only be peaceful and cheerful Earth Days to come for our beautiful Spaceship Earth as it continues to spin and circle in frigid space with its warm and fragile cargo of animate life." Spaceship Earth is the name given to the 50 m diameter geodesic sphere