astrobiology is a very broad interdisciplinary field covering the origin, evolution, distribution, and destiny of life in the universe, as well as the design and implementation of missions for solar system exploration. a review covering its complete spectrum has been missing at a level accessible even to the non-specialist. the last section of the book consists of a supplement, including a glossary, notes, and tables, which represent highly condensed `windows into research ranging from basic sciences to earth and life sciences, as well as the humanities. these additions should make the new science of astrobiology accessible to a wide readership: scientists, humanists, and the general reader will have an opportunity to participate in one of the most rewarding activities of contemporary culture.