Bioastronomy : The Search for Extraterrestrial Life - The Exploration Broadens

This book collects together a selection of the best papers presented at the Third International Bioastronomy Symposium held in 1990. The subject is bioastronomy, the search for life in the universe, and the book is divided according to the five main stages of life as recognized by this new branch of science: cosmic, organic, prebiotic, primitive biological and advanced.