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 Asteroids, Comets & Satellites (3224): People
Thomas  Momary's Picture
Jet Propulsion Laboratory
M/S 183-601
4800 Oak Grove Drive
Pasadena, CA 91109
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Thomas Momary

  • B.S., Physics, University of California, San Diego
  • M.S., Geophysics and Space Physics, University of California, Los Angeles
  • Professional Certificate in Graphic Arts and Computer Animation, University of California, Los Angeles

Research Interests
  • Science visualization, animation production, painting, writing, sound design, and music to bring planetary exploration to life for the general public
  • The study of planetary atmospheres and surfaces, primarily the characterization and evolution of clouds, vertical structure, and satellite surfaces
  • Comparative exoplanetology and characterization of exoplanet atmospheres
  • Ground-based and Hubble observations of the gas and ice giant planets


Cassini-Huygens Icon Cassini-Huygens
The Cassini-Huygens spacecraft explored the ringed planet, its mysterious moons, the stunning rings and its complex magnetic environment.

Juno Icon Juno
Juno will fly to Jupiter and orbit its polar regions in order to understand the planet's gross size and structural properties, as well as measure Jupiter's atmospheric composition, temperature and deep wind profiles.

New Horizons Icon New Horizons
New Horizons is the first mission in NASA's New Frontiers program of medium-class planetary missions. It will be the first spacecraft to visit Pluto and its moon Charon.

Venus Express Icon Venus Express
Venus Express is the European Space Agency's first mission to Earth's nearest planetary neighbor, Venus.

Professional Experience
  • Planetary Astronomer/Space Artist, NASA Jet Propulsion Laboratory (1993-Present)
  • Internship, EMA Multimedia, Inc.
  • Graduate Teaching Assistant, Dept. of Earth & Space Sciences/Dept. of Astronomy, UCLA
  • Viewpoint Columnist, UCLA Daily Bruin

Community Service
  • A.A.S.  Division for Planetary Sciences, International Association of Astronomical Artists

Selected Awards
  • JPL Cassini Science Team Award
  • JPL Cassini Flight Team Group Achievement
  • JPL Outstanding Accomplishment in Service to NASA’s Student Involvement Program
  • JPL Voyager Award

Selected Publications
  1. Baines, K. H., Yanamandra-Fisher, P., Lebofsky, L.A., Momary, T.W., et al. (1998). Near-infrared absolute photometric imaging of the Uranian System. Icarus, 132,266-284.
  2. Momary, T. W. Baines, K. H., Yanamandra-Fisher, P.A. et. al (1999). Near infrared absolute photometry of Saturn's satellites at ring plane crossing. Bull. A. A. S. 31
  3. Momary, T. W. Baines, K. H., Yanamandra-Fisher, P. A., Lebofsky, L. A., Golisch, W., and Kaminski, C. (2000). The Saturnian satellites in the near-infrared: absolute photometry at ring plane crossing. Icarus 148, 397-406.
  4. Baines, K. H., Drossart, P., Momary, T. W., et al. (2006). The atmospheres of Saturn and Titan in the near-infrared: First results of Cassini/VIMS. Earth, Moon, and Planets 96, 119-147.
  5. Baines, K. H.,Drossart, P., Lopez-Valverde, M., Atreya, S. K., Sotin, C., Momary, T., et al. (2006). On the discovery of CO nighttime emissions on Titan by Cassini/VIMS: Derived stratospheric abundances and geological implications. Planetary and Space Sci., 54, Issue 15, 1552-1562.
  6. Momary, T. W. Baines, K. H., and the Cassini/VIMS Science Team (2006). The zoology of Saturn: The bizarre features unveiled by the 5-micron eyes of Cassini/VIMS. Bull. A. A. S. 38, 499.
  7. McGouldrick, K., Baines, K.H., Momary, T.W., Grinspoon, D.H. (2008). Venus Express/VIRTIS observations of middle and lower cloud variability and implications for dynamics. Journal of Geophysical Research, 113, E00B14.
  8. Momary, T. W. Baines, K. H., et al. (2008). Saturn's dynamic atmosphere at depth: physical Characteristics and zonal winds derived from clouds near the 2-bar level and their Dynmical implications from Cassini-Huygens/VIMS. Bull. A. A. S. 40, 472.
  9. Sarah F. Newman, B.J. Buratti, R.H. Brown, R. Jaumann, J. Bauer, T. Momary (2008). Photometric and spectral analysis of the distribution of crystalline and amorphous ices on Enceladus as seen by Cassini. Icarus, Volume 193, Issue 2, February 2008, Pages 397-406.
  10. Baines, K. H., Momary, T. W. et al. (2009) Saturn's north polar cyclone and hexagon at depth revealed by Cassini/VIMS Planetary and Space Science, 57, Issue 14-15, 1671-1681.
  11. Baines, K. H., Momary, T. W. Fletcher, L. N., Showman, A. P., Roos-Serote, M., Brown, R. H., Buratti, B. J., Clark, R. N., (2009). Saturn's north polar cyclone and hexagon at depth revealed by Cassini/VIMS. Planetary and Space Sci., 57, 1671-1681.
  12. Baines, K. H., Delitsky, M.. L., Momary, T. W. Brown, R. H., Buratti, B. J., Clark, R. N., et al. (2009). Storm clouds on Saturn: Lightning-induced chemistry and associated materials consistent with Cassini/VIMS spectra. Planetary and Space Sci. 57, 1650-1658.
  13. B.J. Buratti, J.M. Bauer, M.D. Hicks, J.A. Mosher, G. Filacchione, T. Momary, K.H. Baines, R.H. Brown, R.N. Clark, P.D. Nicholson (2010). Cassini spectra and photometry 0.25–5.1 μm of the small inner satellites of Saturn. Icarus, Volume 206, Issue 2, April 2010, Pages 524-536.
  14. Fletcher, L. N., Hesman, B .E., Irwin, P. G. J, Baines, K. H., Momary, T. W. et al. (2011). Thermal Structure and Dynamics of Saturn's Northern Springtime Disturbance. Science, 332, 1413-1417.
  15. Fletcher, L.N, Baines, K .H., Momary, T. W. et al. (2011). Saturn's tropospheric composition and clouds from Cassini/VIMS 4.6-5.1 μm nightside spectroscopy. Icarus, 214, 510-533.
  16. Kevin McGouldrick, Thomas W. Momary, Kevin H. Baines, David H. Grinspoon (2012) Quantification of middle and lower cloud variability and mesoscale dynamics from Venus Express/VIRTIS observations at 1.74 μm Icarus, Volume 217, Issue 2, February 2012, Pages 615-628.
  17. Kevin H. Baines, Padmavati A. Yanamandra-Fisher, Thomas W. Momary, Glenn S. Orton, Gregorio G. Villar III, Leigh N. Fletcher, Humberto Campins, Andrew S. Rivkin, Michael Shara (2013). The temporal evolution of the July 2009 Jupiter impact cloud. Planetary and Space Science, Volume 77, March 2013, Pages 25-39.
  18. Thomas W. Momary, Baines, K. H., and the Cassini/VIMS Science Team (2014). The Anticyclonic Eye of the Storm:  Evolution of Saturn's Great Storm Region and Associated Anticyclone as seen by Cassini/VIMS. Bull. A.A.S, 46, 198.
  19. Sromovsky, L.A., Baines, K. H., Fry, P. M., Momary, T. W. (2016).  Cloud clearing in the wake of Saturn’s Great Storm of 2010-2011 and suggested new constraints on Saturn’s He/H2 ratio.  Icarus, 276141-162.
  20. Buratti, B.J., Hofgartner, J.D., Hicks, M.D., Weaver, H.A., Stern, S.A., Momary, T., et al. (2017). Global albedos of Pluto and Charon from LORRI New Horizons observations. Icarus. Volume: 287   Special Issue: SI   Pages: 207-217.
  21. Orton, G.S..,Hansen, C, Caplinger, M, Ravine, M., Atreya, S., Ingersoll, A.P., Jensen, E., Momary, T., et al. (2017). The first close-up images of Jupiter’s polar regions: Results from the Juno Mission JunoCam instrument.  Geophysical Research Letters44, 4599-4606.
  22. Adriani, A, Mura, A. Orton, G., Hansen C.,Altieri, F., Moriconi, M.L., Rogers, J., Eichstadt, G., Momary, al. (2018). Clusters of cyclones encircling Jupiter’s poles. Nature555, 216.

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