P34C:
The Physical Conditions Controlling Life's Origin, Evolution, and End II


Session ID#: 10395

Session Description:
New insights into Mars’ wet past, the confirmation of a liquid ocean on Ganymede, and the ongoing stream of exoplanet discoveries raise the prospect of an ever-wider range of environments that could sustain life. This session explores how such environments emerge, are sustained, and eventually decline.

Questions of particular interest include: What is Earth’s long-term climatic stability and how will it end? How long did habitable conditions persist on Mars and did they ever exist on Venus? What habitable environments exist in the outer Solar System and how do they continue to evolve? How do the Faint Young Sun Problem, the Runaway Greenhouse, and long-term climate feedbacks play out across different planets and outside the Solar System?

We invite case studies and comparisons that use observations, experiments and/or modeling to expand our understanding of the habitability of diverse environments in our Solar System and beyond.

Primary Convener:  Daniel D.B. Koll, Peking University, Beijing, China
Conveners:  Jun Yang, Peking University, Department of Atmospheric and Oceanic Sciences, School of Physics, Beijing, China and Nathaniel Jacob Kahane Baskin, University of Chicago, Chicago, IL, United States
Chairs:  Jun Yang, Peking University, Department of Atmospheric and Oceanic Sciences, School of Physics, Beijing, China, Daniel D.B. Koll, Peking University, Beijing, China and Nathaniel Jacob Kahane Baskin, University of Chicago, Chicago, IL, United States
OSPA Liaison:  Jun Yang, Peking University, Department of Atmospheric and Oceanic Sciences, School of Physics, Beijing, China

Cross-Listed:
  • A - Atmospheric Sciences
  • B - Biogeosciences
  • PP - Paleoceanography and Paleoclimatology
Index Terms:

0325 Evolution of the atmosphere [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0406 Astrobiology and extraterrestrial materials [BIOGEOSCIENCES]
5215 Origin of life [PLANETARY SCIENCES: ASTROBIOLOGY]
6296 Extra-solar planets [PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS]

Abstracts Submitted to this Session:

Habitable Zone Boundaries: Implications for our Solar System and Beyond (Invited) (59430)
James F Kasting, Pennsylvania State University, University Park, PA, United States, Ravi Kopparapu, NASA Goddard Space Flight Center, Solar System Exploration Division, Greenbelt, MD, United States, Chester Harman, Columbia University, New York, NY, United States, Natasha E Batalha, Pennsylvania State Univ, University Park, PA, United States and Jacob D Haqq-Misra, Blue Marble Space Institute of Science, Seattle, WA, United States
Evidence for a Hadean to Paleoarchean geodynamo: Implications for the survivability of planetary hydrospheres (81583)
John Anthony Tarduno, University of Rochester, Department of Physics and Astronomy, Rochester, NY, United States, Rory Danielle Cottrell, University of Rochester, Earth and Environmental Sciences, Rochester, NY, United States, Richard K. Bono, University of Liverpool, Liverpool, United Kingdom and Matthew Stephen Dare, University of Rochester, Rochester, NY, United States
Core of Theia as source of much of the Earth’s late veneer and implications of a relatively benign Late Heavy Bombardment (62668)
Norman H Sleep, Stanford University, Geophysics, Stanford, CA, United States
Large Igneous Provinces, Sulfur Aerosols, and Initiation of Snowball Earth (Invited) (59466)
Francis A Macdonald, Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States and Robin Wordsworth, Harvard University, School of Engineering and Applied Sciences, Cambridge, United States
NOx in the Atmosphere of Early Earth as Electron Acceptors for Life (65290)
Michael L Wong, Caltech, Pasadena, CA, United States, Benjamin Charnay, Paris Observatory, LESIA, Paris, France, Peter Gao, Carnegie Institution for Science, Earth & Planets Laboratory, Washington, DC, United States, Yuk L Yung, California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, CA, United States and Michael J Russell, Jet Propulsion Laboratory, Pasadena, CA, United States
Habitability in The Solar System and on Extrasolar Planets and Moons (Invited) (59066)
Christopher P McKay, NASA Ames Research Center, Moffett Field, CA, United States
Exploring the Inner Edge of the Habitable Zone with Fully Coupled Oceans (81158)
Michael Way1, Anthony D Del Genio1, Nancy Y Kiang1, Maxwell Kelley2, Igor D Aleinov3, Thomas Clune4 and Michael Joseph Puma3, (1)NASA Goddard Institute for Space Studies, New York, NY, United States, (2)NASA/GISS, New York, United States, (3)Columbia University of New York, Palisades, NY, United States, (4)NASA Goddard Space Flight Center, Greenbelt, MD, United States
The Inhabitance Paradox: how habitability and inhabitancy are inseparable (Invited) (59317)
Dr. Colin Goldblatt, PhD, University of Victoria, School of Earth and Ocean Sciences, Victoria, BC, Canada

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