Extraterrestrial Civilizations

Isaac Asimov

Ever since the concept of other worlds was put forward in the fifth century BC, scientists have struggled to answer that eternal question: Are we alone? Asimov here covers many fascinating aspects in his analysis of the universe - interstellar flight, the origin of life, messages to outer space, space exploration, the solar system - and gradually reaches his conclusion that are as convincing as they are fantastic.

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