Publisher's Synopsis
Never before has so much time and concentrated effort been spent by so many scientists and writers in pursuit of the answer to this fundamental question. In this extraordinary work, major scientists involved in the search for extraterrestrial intelligence known as SETI explain their work and reveal their thoughts.
Joining them are some of the best speculative thinkers, from Arthur C. Clarke and Isaac Asimov to Gregory Benford, who address the major philosophical questions involved.
