The Search for Life's Origins

The Search for Life's Origins PDF

Author: National Research Council

Publisher: National Academies Press

Published: 1990-02-01

Total Pages: 161

ISBN-13: 0309042461

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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. This field has made exciting discoveries that shed light on how organic compounds came together to form self-replicating molecules-the origin of life. 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. The book presents a wide range of data and research results on these and other issues: The biogenic elements and their interaction in the interstellar clouds and in solar nebulae. Early planetary environments and the conditions that lead to the origin of life. The evolution of cellular and multicellular life. The search for life outside the solar system. 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.

Science and Creationism

Science and Creationism PDF

Author: National Academy of Sciences (U.S.)

Publisher: National Academies Press

Published: 1999

Total Pages: 48

ISBN-13: 9780309064064

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This edition of Science and Creationism summarizes key aspects of several of the most important lines of evidence supporting evolution. It describes some of the positions taken by advocates of creation science and presents an analysis of these claims. This document lays out for a broader audience the case against presenting religious concepts in science classes. The document covers the origin of the universe, Earth, and life; evidence supporting biological evolution; and human evolution. (Contains 31 references.) (CCM)

The Origin of Life

The Origin of Life PDF

Author: Aleksandr Ivanovich Oparin

Publisher: Courier Dover Publications

Published: 2003

Total Pages: 0

ISBN-13: 9780486495224

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This classic of biochemistry offered the first detailed exposition of the theory that living tissue was preceded upon Earth by a long and gradual evolution of nitrogen and carbon compounds. "Easily the most scholarly authority on the question...it will be a landmark for discussion for a long time to come." — New York Times.

Origin of Life

Origin of Life PDF

Author: David W. Deamer

Publisher: Oxford University Press

Published: 2020-08-01

Total Pages: 160

ISBN-13: 019009902X

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It seems likely that scientists will someday discover how life can emerge on habitable planets like the early Earth and Mars. In Origin of Life: What Everyone Needs to Know®, David W. Deamer has written a comprehensive guide to the origin of life that is organized in three sections. The first section addresses questions such as: Where do the atoms of life come from? How old is Earth? What was the Earth like before life began? Where does water come from? After each question is answered, there is a follow-up: How do we know? This expands the horizon of the book, explaining how scientists reach conclusions and why we can trust these answers. The second section describes how certain organic molecules can spontaneously assemble into populations of protocells that can undergo selection and evolve toward primitive living systems. Here Deamer proposes a truly novel concept that life did not begin in the ocean but instead in fresh water hot springs on volcanic land masses resembling Hawaii today. True knowledge is not just what we know, but equally important is what we don't yet know. In the third section Deamer lists the outstanding questions that must be addressed before we can finally answer a fundamental question of biology: How can life begin?

Young Sun, Early Earth and the Origins of Life

Young Sun, Early Earth and the Origins of Life PDF

Author: Muriel Gargaud

Publisher: Springer Science & Business Media

Published: 2013-01-11

Total Pages: 303

ISBN-13: 3642225527

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- How did the Sun come into existence? - How was the Earth formed? - How long has Earth been the way it is now, with its combination of oceans and continents? - How do you define “life”? - How did the first life forms emerge? - What conditions made it possible for living things to evolve? All these questions are answered in this colourful textbook addressing undergraduate students in "Origins of Life" courses and the scientifically interested public. The authors take the reader on an amazing voyage through time, beginning five thousand million years ago in a cloud of interstellar dust and ending five hundred million years ago, when the living world that we see today was finally formed. A chapter on exoplanets provides an overview of the search for planets outside the solar system, especially for habitable ones. The appendix closes the book with a glossary, a bibliography of further readings and a summary of the Origins of the Earth and life in fourteen boxes.

Origins of Life How Life Began Abiogenesis, Astrobiology

Origins of Life How Life Began Abiogenesis, Astrobiology PDF

Author: Nick Lane

Publisher:

Published: 2011-11

Total Pages: 528

ISBN-13: 9780974975528

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How Did Life Begin? There are two scientific views on the origins of life: 1) Earthly-Abiogenesis which argues life on Earth began on Earth, and 2) Extraterrestrial Abiogenesis the position of which is life has an ancestry which predates the origins of Earth, and is pervasive throughout the cosmos. Thus, both theories embrace abiogenesis" and both argue that life may have begun on innumerable planets via the same mechanisms. In this ground-breaking, revolutionary text, over 30 top scientists from around the world, explain how life began and if there is life on other worlds, in over 20 paradigm busting chapters. PART I: Earthly Abiogenesis & the Origins of Life 1. Why Does Life Start, What Does It Do, Where Will It Be, And How Might We Find It? Michael J. Russell, Ph.D., and Isik Kanik, Ph.D., 2. Just Like the Universe the Emergence of Life had High Enthalpy and Low Entropy Beginnings, Wolfgang Nitschke, Ph.D., and Michael J. Russell, Ph.D. 3. Polyphosphate-Peptide Synergy and the Organic Takeover at the Emergence of Life. E. James Milner-White, Ph.D., and Michael J. Russell, Ph.D. 4. The Alkaline World and the Origin of Life. Anthony Richard Mellersh, Ph.D., and Paul Michael Smith, 5. Amino Acid Homochirality and the RNA World: Necessities for Life on Earth, Koji Tamura, Ph.D., 6. The RNA World and the Origin of Life: An Ancient Protein Fold Links Metal-Based Gas Reactions with the RNA World. Anne Volbeda, Ph.D., Yvain Nicolet, Ph.D., and Juan C. Fontecilla-Camps, Ph.D. 7. Evolutionary Steps to the Origin of Life on Earth. Andrew J. Pratt, D. Phil. 8. Vesicles First and the Origin of Self-Reproductive Life: Metabolic Energy, Replication, and Catalysis. Arthur L. Koch, Ph.D., 9. Chance or Necessity? Bioenergetics and the Probability of Life. Nick Lane, Ph.D. 10. Disequilibrium First: The Origin of Life Christof B. Mast, Ph.D., Natan Osterman, Ph.D., and Dieter Braun, Ph.D. 11. Life's Origins: Potential for Radical Mediated Cyanide Production on the Early Earth, Shawn E. McGlynn, Ph.D., Trevor E. Beard, Joan B. Broderick, Ph.D., and John W. Peters, Ph.D. 12. The Emergence of Life: Thermodynamics of Chemical Free Energy Generation in Off-Axis Hydrothermal Vent Systems & Consequences for Compartmentalization & Life's Origins. Eugenio Simoncini, Ph.D., Axel Kleidon, Ph.D., Enzo Gallori, Ph.D. 13. How Life Began: The Emergence of Sparse Metabolic Networks, Shelley D. Copley, Ph.D., Eric Smith, Ph.D., and Harold J. Morowitz, Ph.D., 14. Redox Homeostasis in the Emergence of Life. On the Constant Internal Environment of Nascent Living Cells, John F. Allen, Ph.D. 15. Reconstruction of the Molecular Origin of Life. Edward N. Trifonov, Ph.D., 16. How Primordial Cells Assembled Biosynthetic Pathways, Marco Fondi, Ph.D., Giovanni Emiliani, Ph.D., Renato Fani, Ph.D., 17. On the Emergence of Pre-Genetic Information. Ernesto Di Mauro, Ph.D., 18. Implications For An RNA-Clay World: Interaction Of Cytosine With Clay Minerals, A. Pucci, Ph.D., et al. 19. Viruses and Life: Can There Be One Without the Other? Matti Jalasvuori, Ph.D., and Jaana K.H. Bamford, Ph.D., 20. The Origin of Eukaryotes: Archae, Bacteria, Viruses and Horizontal Gene Transfer, R. Joseph, Ph.D. 21. What Can the Origin of Life on Earth Tell Us About the Cosmos? Stephen Freeland, Ph.D., and Gayle K. Philip, Ph.D. PART II: Extra-Terrestrial Abiogenesis 22. 1. Biological Cosmology and the Origins of Life in the Universe, R. Joseph, Ph.D., Rudolf Schild, Ph.D 23. First Life in the Oceans of Primordial-Planets: The Biological Big Bang. C.H. Gibson, Ph.D., N.C. Wickramasinghe, Ph.D., R.E. Schild, Ph.D 24. Genetics Indicates Extra-Terrestrial Origins of Life: the First Gene. R. Joseph, Ph.D., Rudolf Schild, Ph.D., N.C. Wickramasinghe, Ph.D.,

The Origin and Nature of Life on Earth

The Origin and Nature of Life on Earth PDF

Author: Eric Smith

Publisher: Cambridge University Press

Published: 2016-03-31

Total Pages: 703

ISBN-13: 1107121884

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Uniting the foundations of physics and biology, this groundbreaking multidisciplinary and integrative book explores life as a planetary process.

The Limits of Organic Life in Planetary Systems

The Limits of Organic Life in Planetary Systems PDF

Author: National Research Council

Publisher: National Academies Press

Published: 2007-07-26

Total Pages: 116

ISBN-13: 030910484X

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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.

The Five Ages of the Universe

The Five Ages of the Universe PDF

Author: Fred C. Adams

Publisher: Simon and Schuster

Published: 2016-12-06

Total Pages: 288

ISBN-13: 143911868X

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As the twentieth century closed, Fred Adams and Greg Laughlin captured the attention of the world by identifying the five ages of time. In The Five Ages of the Universe, Adams and Laughlin demonstrate that we can now understand the complete life story of the cosmos from beginning to end. Adams and Laughlin have been hailed as the creators of the definitive long-term projection of the evolution of the universe. Their achievement is awesome in its scale and profound in its scientific breadth. But The Five Ages of the Universe is more than a handbook of the physical processes that guided our past and will shape our future; it is a truly epic story. Without leaving earth, here is a fantastic voyage to the physics of eternity. It is the only biography of the universe you will ever need.