P12B:
Venus: The Origin and Fate of Earth-Like Planets? Big Questions of the World Next Door I


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Session ID#: 60722

Session Description:
Venus records the origin and fate of habitable planets in our solar system and beyond, but fundamental questions remain about Earth's "€œsister planet", from the rate of current volcanism, to the dominant form of tectonics, to the nature of atmospheric processes. Evidence suggests early Venus sustained liquid surface water, but its past and possibly present habitability are open questions. Recent Venus missions focusing on atmospheric processes have revealed a trove of information about Venus'€™ circulation and cloud dynamics, but questions about the deep atmosphere, surface, and interior -€“ and their interactions over time  - remain unanswered.

This pair of 1-hour panels will focus on the current state of knowledge of Venus atmosphere including escape, circulation, clouds, habitability, deep atmosphere and chemistry; surface processes including volcanism and tectonics; and interior processes. Major questions in need of new data, and the nature of those data, will be discussed.

Primary Convener:  Noam Izenberg, Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States
Convener:  Adriana Ocampo, NASA Headquarters, Washington, DC, United States
Primary Liaison:  Noam Izenberg, Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States
Chairs:  Noam Izenberg, Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States and Adriana Ocampo, NASA Headquarters, Washington, DC, United States
OSPA Liaison:  Noam Izenberg, Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States
Index Terms:

5499 General or miscellaneous [PLANETARY SCIENCES: SOLID SURFACE PLANETS]
6207 Comparative planetology [PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS]
6295 Venus [PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS]
6296 Extra-solar planets [PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS]

Abstracts Submitted to this Session:

The State of Venus Exploration: The View from VEXAG (Invited) (455013)
Melinda Darby Dyar, Mount Holyoke College, Department of Astronomy, South Hadley, United States and Noam Izenberg, Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States
Venus near-surface magnetic environment (401213)
Yasuhito Narita, Space Research Institute, Austrian Academy of Sciences, Graz, Austria and Uwe Motschmann, TU Braunschweig, Institute of Theoretical Physics, Braunschweig, Germany
Effects of the solar gravitational torque on the Venusian atmosphere (400389)
Thomas Navarro, University of California Los Angeles, Los Angeles, CA, United States and Gerald Schubert, UCLA, Los Angeles, CA, United States
Thermodynamic and Rheologic Modeling Equilibrium Crystallization of Venusian Lava Flows, with Considerations for Large Geochemical Uncertainties (352963)
Kyle T Ashley, University of Pittsburgh, Department of Geology and Environmental Science, Pittsburgh, PA, United States and Prof. Michael S Ramsey, PhD, University of Pittsburgh, Department of Geology and Environmental Science, Pittsburgh, United States
Coupled atmosphere-magma ocean modelling of the evolution of nitrogen on early Venus (442543)
Robin Wordsworth, Harvard University, School of Engineering and Applied Sciences, Cambridge, MA, United States and Laura Schaefer, Arizona State University, School of Earth & Space Exploration, Tempe, United States
Gravitational Signatures of Atmospheric Mass Transport by Thermal Tides on Venus (375555)
Bruce G Bills1, Thomas Navarro2, Gerald Schubert2, Anton Ermakov1 and Krzysztof Gorski1, (1)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (2)UCLA, Los Angeles, CA, United States
Lessons from a coupled photochemical-condensation model of the full Venusian atmosphere (398407)
Carver Jay Jay Bierson, University of California Santa Cruz, Santa Cruz, United States, Xi Zhang, University of California Santa Cruz, Earth and Planetary Sciences, Santa Cruz, CA, United States and Peter Gao, Carnegie Institution for Science, Earth & Planets Laboratory, Washington, DC, United States; University of California Santa Cruz, Astronomy, Santa Cruz, CA, United States

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