GEO604: Water & Planetary Habitability

Course Description

Water is inseparable from life as we know it and from the physical, chemical, and dynamical processes that link planetary interiors, surfaces, atmospheres, and orbits. This seminar surveys the role of water in planetary habitability, drawing on geophysical, geochemical, atmospheric, and planetary science literature. Topics include the origin and evolution of water on Earth; its coupling to climate, tides, and interior convection; divergent outcomes on Venus and Mars; and subsurface oceans on icy moons and water-covered exoplanets. The aim is to understand, and perhaps to provoke new ways of thinking about, how water enables, mediates, and sometimes limits planetary habitability. Offered: Fall 2026.

References

  1. Vulpius, S., Runge, E., Herwartz, D., Pack, A., Brachmann, C., Noack, L. (2026). Formation and redox evolution of Earth’s early atmosphere and hydrosphere. Nature Reviews Earth & Environment [DOI]

  2. Zaki, A.S., Lamb, M.P. (2026). Identifying the topographic signature of early Martian oceans. Nature, 652, 878–885. [DOI]

  3. Li, J., Liu, H., Meng, X., Duan, D., Lu, H., Zhang, J., Zhang, F., Elsworth, D., Cardenas, B.T., Manga, M., Zhou, B., Fang, G. (2025). Ancient ocean coastal deposits imaged on Mars. Proceedings of the National Academy of Sciences, 122, e2422213122. [DOI]

  4. Wang, L., Huang, J. (2024). Hypothesis of an ancient northern ocean on Mars and insights from the Zhurong rover. Nature Astronomy, 8, 1220–1229. [DOI]

  5. Sholes, S.F., Rivera-Hernández, F. (2022). Constraints on the uncertainty, timing, and magnitude of potential Mars oceans from topographic deformation models. Icarus, 378, 114934. [DOI]

  6. Korenaga, J. (2021). Was There Land on the Early Earth?. Life, 11, 1142. [DOI]

  7. Krissansen-Totton, J., Fortney, J.J., Nimmo, F. (2021). Was Venus Ever Habitable? Constraints from a Coupled Interior–Atmosphere–Redox Evolution Model. The Planetary Science Journal, 2, 216. [DOI]

  8. Turbet, M., Bolmont, E., Chaverot, G., Ehrenreich, D., Leconte, J., Marcq, E. (2021). Day–night cloud asymmetry prevents early oceans on Venus but not on Earth. Nature, 598, 276–280. [DOI]

  9. Sholes, S.F., Dickeson, Z.I., Montgomery, D.R., Catling, D.C. (2021). Where are Mars’ Hypothesized Ocean Shorelines? Large Lateral and Topographic Offsets Between Different Versions of Paleoshoreline Maps. Journal of Geophysical Research: Planets, 126, e2020JE006486. [DOI]

  10. Kite, E.S., Ford, E.B. (2018). Habitability of Exoplanet Waterworlds. The Astrophysical Journal, 864, 75. [DOI]

  11. Citron, R.I., Manga, M., Hemingway, D.J. (2018). Timing of oceans on Mars from shoreline deformation. Nature, 555, 643–646. [DOI]

  12. Cockell, C., Bush, T., Bryce, C., Direito, S., Fox-Powell, M., Harrison, J., Lammer, H., Landenmark, H., Martin-Torres, J., Nicholson, N., Noack, L., O'Malley-James, J., Payler, S., Rushby, A., Samuels, T., Schwendner, P., Wadsworth, J., Zorzano, M. (2016). Habitability: A Review. Astrobiology, 16, 89–117. [DOI]

  13. Seager, S. (2013). Exoplanet Habitability. Science, 340, 577–581. [DOI]

  14. Abe, Y., Abe-Ouchi, A., Sleep, N.H., Zahnle, K.J. (2011). Habitable Zone Limits for Dry Planets. Astrobiology, 11, 443–460. [DOI]

  15. Crowe, M.J. (2008). The Extraterrestrial Life Debate - Antiquity to 1915: A Source Book.

  16. Dole, S.H. (2007). Habitable Planets for Man. [DOI]

  17. Stevenson, D.J. (2004). Planetary Diversity. Physics Today, 57, 43–48. [DOI]

  18. Carr, M.H. (1996). Water On Mars. [DOI]

  19. Dick, S.J. (1996). The Biological Universe: The Twentieth Century Extraterrestrial Life Debate and the Limits of Science.

  20. Dick, S.J. (1984). Plurality of Worlds: The Extraterrestrial Life Debate from Democritus to Kant.

  21. Hart, M.H. (1978). The evolution of the atmosphere of the earth. Icarus, 33, 23–39. [DOI]

  22. Dole, S.H., Asimov, I. (1964). Planets for Man. [Link]

  23. Huang, S. (1960). The Sizes of Habitable Planets. Publications of the Astronomical Society of the Pacific, 72, 489. [DOI]

  24. Lowell, P. (1908). Mars as the Abode of Life. [Link]