The Limits of Organic Life in Planetary Systems | 1st Edition
AUTHOR: National Research Council, Division on Earth and Life Studies, Division on Engineering and Physical Sciences, Board on Life Sciences, Space Studies Board, Committee on the Origins and Evolution of Life, Committee on the Limits of Organic Life in Planetar
PUBLISHER: National Academies Press
Also available at Amazon.com
The search for life in the solar system and beyond has to date been governed by a model based on what we know about life on Earth (terran life). Most of NASA's mission planning is focused on locations where liquid water is possible and emphasizes searches for structures that resemble cells in terran organisms. It is possible, however, that life exists that is based on chemical reactions that do not involve carbon compounds, that occurs in solvents other than water, or that involves oxidation-reduction reactions without oxygen gas. To assist NASA incorporate this possibility in its efforts to search for life, the NRC was asked to carry out a study to evaluate whether nonstandard biochemistry might support life in solar system and conceivable extrasolar environments, and to define areas to guide research in this area. This book presents an exploration of a limited set of hypothetical chemistries of life, a review of current knowledge concerning key questions or hypotheses about nonterran life, and suggestions for future research.
PUBLICATION DATE: 6/26/2007