Experts in astronomy, biology, chemistry, and physics argue that evidence points to the conclusion that technological civilizations are rare. Topics include NASA's high resolution microwave survey, stellar evolution, interstellar propulsion systems, and possible forms of life in environments very different from Earth. This second edition updates papers from a November 1979 symposium and includes three new papers. Annotation copyright Book News, Inc. Portland, Or.
Experts critically examine the belief that other intelligent life exists in our galaxy.
Is it possible that extraterrestrial life forms exist within our Galaxy, the Milky Way? This book offers a critical analysis by leading experts in a range of sciences, of the plausibility that other intelligent lifeforms do exist. Exploration of the Solar System, and observations with telescopes that probe deep space, have come up empty handed in searches for evidence of extraterrestrial life. Many experts in the fields of astronomy, biology, chemistry and physics are now arguing that the evidence points to the conclusion that technological civilisations are rare. After ten billion years, and among hundreds of billions of stars, we may well possess the most advanced brains in the Milky Way Galaxy. This second edition contains many new and updated aspects of extraterrestrial research, especially the biological viewpoint of the question.
