| Summary: | The field of planetary biology and chemical evolution draws together experts in astronomy, paleobiology, biochemistry, and space science who work together to understand the evolution of living systems.<br>This field has made exciting discoveries that shed light on how organic compounds came together to form self-replicating molecules--the origin of life.<br>This volume updates that progress and offers recommendations on research programs--including an ambitious effort centered on Mars--to advance the field over the next 10 to 15 years.<br>The book presents a wide range of data and research results on these and other issues: <br> The biogenic elements and their interaction in the interstellar clouds and in solar nebulae.<br>Early planetary environments and the conditions that lead to the origin of life.<br>The evolution of cellular and multicellular life.<br>The search for life outside the solar system.<br> This volume will become required reading for anyone involved in the search for life's beginnings--including exobiologists, geoscientists, planetary scientists, and U.S. space and science policymakers.
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