剧情简介：Carl Sagan, writer and scientist, returns from the frontier to tell us about how the world works. In his delightfully down-to-earth style, he explores and explains a mind-boggling future of intelligent robots, extraterrestrial life and its consquences, and other provocative, fascinating quandries of the future that we want to see today.
作者：Carl Sagan
出版社：Ballantine Books
ISBN：9780345336897
