Tessa Fisher

Ferriere Lab

Office/Lab Location: BSW 419

she, her, hers


  • Ph.D. in Geological Sciences, ASU (2023)
  • M.S. in Environmental Science, Washington State University (2013)
  • B.A. in Astronomy, University of Virginia (2010)
  • B.A. in Biology, University of Virginia (2010)

Research Interests: 

I'm interested in applying ecology and complex systems science to astrobiology and search for life beyond Earth, with a specific focus on chemical reaction network topology as a biosignature for exoplanets


  • Fisher, T., Kim, H., Millsaps, C., Line, M., & Walker, S. I. (2022). Inferring exoplanet disequilibria with multivariate information in atmospheric reaction networks. The Astronomical Journal, 164(2), 53.
  • Sheikh, S., Berea, A., Davis, R., De la Torre, G. G., DeMarines, J., Fisher, T., … & Wright, J. T. (2021). Technosignatures as a Priority in Planetary Science. Bulletin of the American Astronomical Society, 53(4), 427
  • Walker S. I., Cronin L., Drew A., Domagal-Goldman S., Fisher T., Line M., and Millsaps C. (2020) Probabilistic Biosignature Frameworks. In Planetary Astrobiology (V. Meadows et al., eds.), pp. 477–503. Univ. of Arizona, Tucson.
  • Glaser, D.M., Hartnett, H.E., Desch, S.J., Unterborn, C.T., Anbar, A., Buessecker, S., Fisher, T., Glaser, S., Kane, S.R., Lisse, C.M. and Millsaps, C., (2020). Detectability of Life Using Oxygen on Pelagic Planets and Water Worlds. The Astrophysical Journal, 893(2), p.163
  • Schwierterman, E.W., et al. (2018). Exoplanet biosignatures: a review of remotely detectable signs of life. Astrobiology 18(5).
  • Fisher, T.M., and Schulze-Makuch, D. (2013). Nutrient and population dynamics in a subglacial reservoir: a simulation case study of the Blood Falls ecosystem with implications for astrobiology. International Journal of Astrobiology 12, 304–311