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The Atmospheres of the Terrestrial Planets:Clues to the Origins and Early Evolution of Venus, Earth, and MarsWe review the current state of knowledge of the origin and early evolution of the three largest terrestrial planets - Venus, Earth, and Mars - setting the stage for the chapters on comparative climatological processes to follow. We summarize current models of planetary formation, as revealed by studies of solid materials from Earth and meteorites from Mars. For Venus, we emphasize the known differences and similarities in planetary bulk properties and composition with Earth and Mars, focusing on key properties indicative of planetary formation and early evolution, particularly of the atmospheres of all three planets. We review the need for future in situ measurements for improving our understanding of the origin and evolution of the atmospheres of our planetary neighbors and Earth, and suggest the accuracies required of such new in situ data. Finally, we discuss the role new measurements of Mars and Venus have in understanding the state and evolution of planets found in the habitable zones of other stars.
Document ID
20140017487
Document Type
Preprint (Draft being sent to journal)
Authors
Baines, Kevin H. (Wisconsin-Madison Univ. Madison, WI, United States)
Atreya, Sushil K. (Michigan Univ. Ann Arbor, MI, United States)
Bullock, Mark A. (Southwest Research Inst. San Antonio, TX, United States)
Grinspoon, David H, (Denver Museum of Nature and Science Denver, CO, United States)
Mahaffy, Paul (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Russell, Christopher T. (California Univ. Los Angeles, CA, United States)
Schubert, Gerald (California Univ. Los Angeles, CA, United States)
Zahnle, Kevin (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
December 17, 2014
Publication Date
January 1, 2015
Subject Category
Lunar and Planetary Science and Exploration
Report/Patent Number
GSFC-E-DAA-TN12358
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
origin of mars
origin of venus
origin of earth
terrestrial planets
atmospheres

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