NAI
Kevin Zahnle
NASA Ames Research Center
Current Projects
- Task A: Solar System Analogs for Extrasolar Planetary Processes and Observations — 2016 NAI
- Planetary Surface and Interior Models and SuperEarths — 2015 NAI
- Stellar Effects on Planetary Habitability and the Limits of the Habitable Zone — 2015 NAI
- Understanding Past Environments on Earth and Mars — 2015 NAI
- Disks and the Origins of Planetary Systems — 2014 NAI
- Stellar Effects on Planetary Habitability and the Limits of the Habitable Zone — 2014 NAI
- Understanding the Early Mars Environment — 2014 NAI
- Planetary Surface and Interior Models and SuperEarths — 2014 NAI
- Understanding Past Earth Environments — 2014 NAI
- Understanding Past Earth Environments — 2013 NAI
- Stellar Effects on Planetary Habitability and the Limits of the Habitable Zone — 2013 NAI
- Understanding the Early Mars Environment — 2013 NAI
- Disks and the Origins of Planetary Systems — 2013 NAI
- Understanding the Early Mars Environment — 2012 NAI
- Understanding Past Earth Environments — 2012 NAI
- Stellar Radiative Effects on Planetary Habitability — 2012 NAI
- Disks and the Origins of Planetary Systems — 2012 NAI
- Stellar Radiative Effects on Planetary Habitability — 2011 NAI
- Postdoctoral Fellow Report: Mark Claire — 2011 NAI
- Understanding Past Earth Environments — 2011 NAI
- Understanding the Early Mars Environment — 2011 NAI
- Disks and the Origins of Planetary Systems — 2011 NAI
- Disks and the Origins of Planetary Systems — 2010 NAI
- Postdoctoral Fellow Report: Mark Claire — 2010 NAI
- Understanding the Early Mars Environment — 2010 NAI
- Understanding Past Earth Environments — 2010 NAI
- Disks and the Origins of Planetary Systems — 2009 NAI
- Understanding Past Earth Environments — 2009 NAI
- Understanding the Early Mars Environment — 2009 NAI
- Postdoctoral Fellow Report: Mark Claire — 2009 NAI
- Limits of Habitability — 2009 NAI
- Hydrodynamic Escape From Planetary Atmospheres — 2009 NAI
- Modeling Early Earth Environments — 2008 NAI
- Habitable Planets — 2008 NAI
- Habitable Planets — 2007 NAI
- Habitable Planets — 2006 NAI
- Understanding the Earth's Early Environment — 2006 NAI
- Exploring Conditions for Habitability in Our Solar System — 2006 NAI
- The Abiotic Planetary Model: The Upper and Lower Boundary Condition on the Atmosphere — 2006 NAI
- Exploring Conditions for Habitability on Mars — 2005 NAI
- The Abiotic Planetary Model: The Upper and Lower Boundary Condition on the Atmosphere — 2005 NAI
- Habitable Planets — 2005 NAI
- Habitable Planets — 2004 NAI
- The Abiotic Planetary Model: The Upper and Lower Boundary Condition on the Atmosphere — 2004 NAI
- Habitable Planets — 2003 NAI
- The Abiotic Planetary Model: The Upper and Lower Boundary Condition on the Atmosphere — 2003 NAI
- Biogeochemistry of Earth's Greenhouse Leading to the Rise of Oxygen — 2003 NAI
- Biogeochemistry of Earth's Greenhouse Leading to the Rise of Oxygen — 2002 NAI
- Habitable Planets — 2002 NAI
- Astronomical Detection of Biosignatures From Extrasolar Planets — 2001 NAI
- Habitable Planets — 2001 NAI
- Habitable Planets — 2000 NAI
- View all 52 projects
NAI Project Collaborators
- Project collaborators as reported by the latest NAI Annual Report.
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Publications
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Abe, Y., Abe-Ouchi, A., Sleep, N. H., & Zahnle, K. J. (2011). Habitable Zone Limits for Dry Planets. Astrobiology, 11(5), 443–460. doi:10.1089/ast.2010.0545
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Catling, D. C., & Zahnle, K. J. (2009). The Planetary Air Leak. Scientific American, 300(5), 36–43. doi:10.1038/scientificamerican0509-36
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Catling, D. C., Claire, M. W., Zahnle, K. J., Quinn, R. C., Clark, B. C., Hecht, M. H., & Kounaves, S. (2010). Atmospheric origins of perchlorate on Mars and in the Atacama. Journal of Geophysical Research, 115. doi:10.1029/2009je003425
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Goldblatt, C., & Zahnle, K. J. (2010). Clouds and the Faint Young Sun Paradox. Climate of the Past Discussions, 6(3), 1163–1207. doi:10.5194/cpd-6-1163-2010
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Goldblatt, C., & Zahnle, K. J. (2011). Clouds and the Faint Young Sun Paradox. Clim. Past, 7(1), 203–220. doi:10.5194/cp-7-203-2011
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Goldblatt, C., & Zahnle, K. J. (2011). Faint young Sun paradox remains. Nature, 474(7349), E1–E1. doi:10.1038/nature09961
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Goldblatt, C., Claire, M. W., Lenton, T. M., Matthews, A. J., Watson, A. J., & Zahnle, K. J. (2009). Nitrogen-enhanced greenhouse warming on early Earth. Nature Geosci, 2(12), 891–896. doi:10.1038/ngeo692
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Goldblatt, C., Zahnle, K. J., Sleep, N. H., & Nisbet, E. G. (2009). The Eons of Chaos and Hades. Solid Earth Discuss., 1(1), 47–53. doi:10.5194/sed-1-47-2009
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Goldblatt, C., Zahnle, K. J., Sleep, N. H., & Nisbet, E. G. (2010). The Eons of Chaos and Hades. Solid Earth, 1(1), 1–3. doi:10.5194/se-1-1-2010
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Konhauser, K. O., Pecoits, E., Lalonde, S. V., Papineau, D., Nisbet, E. G., Barley, M. E., … Kamber, B. S. (2009). Oceanic nickel depletion and a methanogen famine before the Great Oxidation Event. Nature, 458(7239), 750–753. doi:10.1038/nature07858
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Marion, G. M., Catling, D. C., Zahnle, K. J., & Claire, M. W. (2010). Modeling aqueous perchlorate chemistries with applications to Mars. Icarus, 207(2), 675–685. doi:10.1016/j.icarus.2009.12.003
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Tian, F., Claire, M. W., Haqq-Misra, J. D., Smith, M., Crisp, D. C., Catling, D., … Kasting, J. F. (2010). Photochemical and climate consequences of sulfur outgassing on early Mars. Earth and Planetary Science Letters, 295(3-4), 412–418. doi:10.1016/j.epsl.2010.04.016
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Tian, F., Kasting, J. F., & Zahnle, K. (2011). Revisiting HCN formation in Earth’s early atmosphere. Earth and Planetary Science Letters, 308(3-4), 417–423. doi:10.1016/j.epsl.2011.06.011
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Zahnle, K. (2008). Atmospheric chemistry: Her dark materials. Nature, 454(7200), 41–42. doi:10.1038/454041a
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Zahnle, K., Freedman, R. S., & Catling, D. C. (2011). Is there methane on Mars?. Icarus, 212(2), 493–503. doi:10.1016/j.icarus.2010.11.027
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Zahnle, K., Haberle, R. M., Catling, D. C., & Kasting, J. F. (2008). Photochemical instability of the ancient Martian atmosphere. Journal of Geophysical Research, 113(E11), None. doi:10.1029/2008je003160
See Project - Claire, M., Catling, D. & Zahnle, K. (2008). First Results froms a Time-dependent 1D early Earth Photochemical Model. Astrobiology, 8(2): 423. See Project
- Kopparapu, R.K., Kasting, J.F. & Zahnle, K.J. (In Preparation). Habitable Zones Around Low Mass Stars. See Project
- Marion, G.M., Catling, D.C., Zahnle, K.J. & Claire, M.W. (2009). Modeling aqueous perchlorate chemistries with applications to Mars. 40th Lunar and Planetary Science Conference. The Woodlands, Texas. See Project
- Smith, M., Catling, D.C., Claire, M.W. & Zahnle, K. (2011). The photochemistry of early Mars: Implications for sedimentary minerals and life. Conference on Exploring Mars Habitability. Lisbon, Portugal. See Project
- Zahnle, K., Catling, D. & Claire, M. (2009). Does Microbial Zonation Recapitulate Phylogeny? A Possible Role for Biogenic Sulphur Gases in the Transition from Methane to Free Oxygen. AGU Fall Meeting. San Fransisco, CA. See Project
- Zahnle, K., Catling, D. & Claire, M. (2009). ``Does Microbial Zonation Recapitulate Phylogeny? A Possible Role for Biogenic Sulphur Gases in the Transition from Methane to Free Oxygen.”. AGU Fall Meeting. San Francisco, CA. See Project
- Zahnle, K., Claire, M. & Wing, B. (2010). Biogenic Sulfur Gases, MIF-S, and the Rise of Free Oxygen. Goldschmidt 2010. See Project
- Zahnle, K., Claire, M. & Wing, B. (2010). Biogenic Sulfur Gases, MIF-S, and the Rise of Free Oxygen. Goldschmidt. Knoxville, TN. See Project
- Zahnle, K., Freedman, R. & Catling, D. (2011). Is There Methane on Mars? Part II. Lunar and Planetary Institute Science Conference Abstracts. See Project
- Zahnle, K., Schaefer, L. & Fegley, B. (2010). Earth’s Earliest Atmospheres. In: Deamer, D. & Szostak, J.W. (Eds.). The Origin of Cellular Life. Cold Spring Harbor Laboratory Press. See Project
- Zahnle, K.J. & Catling, D.C. (2012, In Revision). Waiting for O2. Geological Society of America Special Publication. See Project
- View all 27 publications
