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Julie Castillo-Rogez

Photo of Julie Castillo-Rogez


4800 Oak Grove Drive
M/S 183-403

Pasadena, CA 91109





Curriculum Vitae:

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Member of:

Planetary Interiors and Geophysics


Julie Castillo-Rogez is a planetary scientist specializing in water-rich objects from a modeling and experimental perspectives applied to the formulation, design, and planning of planetary missions. Her current activities focus on dwarf planet Ceres, the exploration of small bodies with small spacecraft, and the formulation of reactive missions to long-period comets.


  • B.S. Geology, University of Nantes, France (1997)
  • M.S., Geophysics, University of Rennes, France (1998)
  • Ph.D., Planetary Geophysics, University of Rennes, France (2001)

Professional Experience

    • Associate Scientist for the Planetary Science Directorate, Jet Propulsion Laboratory, (October 2021-Present)
    • Principal Scientist, Jet Propulsion Laboratory, (September 2021-Present)
    • Research Scientist, Jet Propulsion Laboratory, California Inst. Tech., (2007-Present)
    • Co-I, Europa Clipper Gravity and Radio Science Team (2020-)
    • PI, Ceres Planetary Mission Concept Study (2019-2020)
    • Project Scientist and Deputy PI, Dawn Mission (2016-, 2018-Present)
    • Science PI, Near Earth Asteroid Scout CubeSat Mission (2013 - Present)
    • Investigation science, InSight Mission (2013-2017)
    • Lead, Planetary Tides Simulation Facility and Ice Factory (Ice Physics Lab) (2007-2010)
    • Cassini Mission Radio Science Team Affiliate (2002-2004)
    • Titan and Saturn System Mission Science Definition Team (2008)
    • Caltech Postdoctoral Scholar, Jet Propulsion Laboratory (2005-2007)
    • Teaching Assistant, University of Nantes, France (1998-2001)

Community Service

  • COSPAR - 4S (SmallSat for Space Science) Roadmap Committee Member (2017 - 2018)
  • Small Bodies Assessment Group Committee Member (2017-2019)
  • Member of the Roadmap to Ocean Worlds (2016 - 2018)
  • Member of the NAS Committee on Achieving Science with CubeSats (2015 - 2016)
  • Committee member of the Division for Planetary Science (2013 - 2016)
  • NASA Advisory Committee, Planetary Science Subcommittee (2010 - 2014)

Research Interests

  • The geophysics of small bodies (asteroids, irregular satellites)
  • The Signatures of Tides throughout the Solar System

Selected Awards

  • 2019 - NASA's Exceptional Scientific Achievement Medal
  • 2019 - NASA Honors: Group Achievement Award - Dawn Flight Team
  • 2019 - NASA Honors: Group Achievement Award - Dawn Science Team
  • 2017 - Asteroid Castillorogez (11274, 1998SX2) awarded by IAU
  • 2016 - Collier Award awarded to the Dawn Science Team
  • 2016 - Exceptional Achievement - MAVEN Science Team
  • 2015 - NASA Honors - Near Earth Asteroid Project, awarded from Marshall Space Flight Center
  • 2012 - Prix de la Recherche - Best work published by French Nationals (led by Prof. Sebastien Charnoz)
  • 2011 - JPL's Lew Allen Award for early career scientists

Selected Publications

  1. Castillo-Rogez, J. C. (2020) News and Views: Future exploration of dwarf planet Ceres, A newly found ocean world close to Earth, Nature Astronomy,
  2. Castillo-Rogez, J. C., Neveu, M., Scully, J. E. C., House, C. H., Quick, L. C., Bouquet, A., Miller, K., Bland, M., De Sanctis, M. C., Ermakov, A., Hendrix, A. R., Prettyman, T. H., Raymond, C. A., Russell, C. T., Sherwood, B. E., Young, E. (2020) Ceres: Astrobiological target and possible ocean world, Astrobiology, Feb 2020.269-291.
  3. Raymond, C. A., Ermakov, A. I., Castillo-Rogez, J. C., S. Marchi, B. Johnson, R. S. Park, J. E. C. Scully, D. L. Buczkowski, A. Nathues, T. H. Prettyman, P. Schenk, H. G. Sizemore, M. D. Rayman1, C. T. Russell, C. T. (2020) Impact-driven mobilization of deep crustal brines on dwarf planet Ceres, Nature Astronomy,
  4. Park, R. S., Konopliv, A. S., Ermakov, A. I., Castillo-Rogez, J. C., Fu, R. R., Hughson, K. H. G., Prettyman, T. H., Raymond, C. A., Scully, J. E. C., Sizemore, H. G., Sori, M. M., Vaughan, A. T., Mitri, G., Schmidt, B. E., Russell, C. T. (2020) Evidence of non-uniform crust of Ceres from Dawn's high-resolution gravity data, Nature Astronomy,
  5. Nathues, A., Schmedemann N., Thangjam G., Pasckert J. H., Mengel, K., Castillo-Rogez J., Cloutis E.A., Hiesinger, H., Hoffmann M., Le Corre, L., Li J.-Y., Pieters C., Raymond C.A., Reddy, V., Ruesch, O., Williams D.A. (2020) Recent cryovolcanic activity at Occator crater on Ceres, Nature Astronomy,
  6. Formisano, M., Federico, C., Castillo-Rogez, J., De Sanctis, M. C., Magni, G. (2020) Thermal convection in the crust of the dwarf planet - I. Ceres, Monthly Notices of the Royal Astronomical Society 494, 5704-5712,
  7. Castillo-Rogez, J. C., Rayman, M. D. (2020) A bountiful harvest on Ceres, Nature Astronomy (2020).
  8. Castillo-Rogez, J. C., Hesse, M., Formisano, M., Sizemore, H., Bland, M., Ermakov, A., Fu, R. (2019) Conditions for the longā€term preservation of a deep brine reservoir in Ceres, Geophys. Res. Lett. 46, 1963-1972.
  9. Castillo-Rogez, J. C., P. Vernazza, K. Walsh, Geophysical Evidence that Saturn's Moons Phoebe Originated from the C-Type Asteroid Reservoir, MNRAS 486, 538-543
  10. Grazier, K. R., Castillo-Rogez, J. C., Horner, J., It's Complicated: A Big Data Approach to Exploring Planetesimal Evolution in the Presence of Jovian Planets, The Astronomical Journal 156, article id. 232, 19 pp.
  11. Hendrix, A. R., T. A. Hurford, L. M. Barge, M. T. Bland, J. S. Bowman, W. Brinckerhoff, B. J. Buratti, M. L. Cable, J. Castillo-Rogez, G. C. Collins, S. Diniega, C. R. German, A. G. Hayes, T. Hoehler, S. Hosseini, C. J.A. Howett, A. S. McEwen, C. D. Neish, M. Neveu, T. A. Nordheim, G. W. Patterson, D. A. Patthoff, C. Phillips, A. Rhoden, B. E. Schmidt, K. N. Singer, J. M. Soderblom, S. D. Vance (2019) The NASA Roadmap to Ocean Worlds, Astrobiology,
  12. Park, R.S., A.T. Vaughan, A.S. Konopliv, A.I. Ermakov, N. Mastrodemos, J.C. Castillo-Rogez, S.P. Joy, A. Nathues, C.A. Polanskey, M.D. Rayman, J.E. Riedel, C.A. Raymond, C.T. Russell, M.T. Zuber (2019) High-resolution shape model of Ceres from stereophotoclinometry using Dawn imaging data, Icarus 319:812-817, doi:10.1016/j.icarus.2018.10.024.
  13. Hesse, M., Castillo-Rogez, J. C. (2019) Conditions for the long-term preservation of a local brine reservoir below Occator Crater on Ceres, Geophys. Res. Lett. 46, 1213-1221
  14. Marchi, S., Raponi, A., Prettyman, T., De Sanctis, M. C., Castillo-Rogez, J., Raymond, C., Ammannito, E., Bowling, T., Ciarniello, M., Kaplan, H., Palomba, E., Russell, C., Vinogradoff, V., Yamashita, N. (2019) An aqueously altered carbon-rich Ceres, Nature Astronomy 3, 140-145.
  15. Ruesch, O., Genova, A., Neumann, W., Quick, L. C., Castillo-Rogez, J. C., Zuber, M., Raymond, C. A., Russell, C. T. (2019) Slurry extrusion on Ceres from a convective mud-bearing mantle, Nature Geoscience 12:505-509.
  16. Ruesch, O., Quick, L. C., Landis, M. E., Sori, M. M., Cadek, O., Broz, P., Otto, K. A., Bland, M. T., Byrne, S., Castillo-Rogez, J. C., Hiesinger, H., Jaumann, R., Krohn, K., McFadden, L. A., Nathues, A., Neesemann, A., Preusker, F., Roatsch, T., Schenk, P. M., Scully, J. E. C., Sykes, M. V., Williams, D. A., Raymond, C. A., Russell, C. T., (2019) Bright carbonate surfaces on Ceres as remnants of salt-rich water fountains, Icarus 320, 39-48.
  17. McSween, H. Y., Emery, J. P., Rivkin, A. S., Castillo-Rogez, J. C., Prettyman, T. H., De Sanctis, M. C., Pieters, C. M., Raymond, C. A., Russell, C. T. (2018) Carbonaceous chondrites as analogs for the composition and alteration of Ceres, Meteoritics and Planetary Science 53, 1793-1804.
  18. Pieters C. M., Nathues A., Thangiam G., Hoffman M., Platz T., De Sanctis M C., Ammannito E., Tosi F., Zambon F., Paskert J. H., Hiesinger H., Jaumann R., Schoeder S. E., Matz K-D., Castillo-Rogez J. C., Ruesch O., McFadden L. A., O'Brien D. P., Sykes M., Raymond C. A., and Russell C. T. (2018) Geologic constraints on the origin of red organic-rich material on Ceres. Meteoritics & Planetary Science 53, 1983-1998, doi:10.1111/maps. 13008.
  19. Castillo-Rogez, J. C., Neveu, M., McSween, H. Y., Fu R. R., Toplis, M. J., Prettyman, T. (2018) Insights into Ceres' evolution from surface composition, Meteoritics and Planetary Science 53, 1820-1843.
  20. Ermakov, A. I., Fu, R. R., Castillo-Rogez, J. C., Raymond, C. A., Park, R. S., Preusker, F., Russell, C. T., Smith, D. E., Zuber, M. T. (2017) Constraints on Ceres' internal structure and evolution from its shape and gravity measured by the Dawn spacecraft, J. Geophys. Res: Planets 122, 2267-2293.
  21. Fu, R., Ermakov, E., Marchi, S., Castillo-Rogez, J. C., Raymond, C. A., Hager, B. H., Zuber, M. T., King, S. D., Bland, M. T., De Sanctis, M. C., Preusker, F., Park, R. S., Russell, C. T. (2017) The interior structure of Ceres as revealed by surface topography, Earth and Planetary Science Letters 476, 153-164.
  22. De Sanctis, M.C., Raponi, A., E. Ammannito, M. Ciarniello, M.J. Toplis, H.Y. McSween, J.C. Castillo-Rogez, B.L. Ehlmann, F.G. Carrozzo, S. Marchi, F. Tosi, F. Zambon, F. Capaccioni, M.T. Capria, S. Fonte1, M. Formisano, A. Frigeri, M. Giardino, A. Longobardo, G. Magni, E. Palomba, L.A. McFadden, C.M. Pieters, R. Jaumann, P. Schenk, R. Mugnuolo, C.A. Raymond, C.T. Russell (2016) Bright carbonate deposits as evidence of aqueous alteration on (1) Ceres, Nature 536, 54-57.
  23. Park, R. S., Konopliv, A. S., Bills, B. G., Rambaux, N., Castillo-Rogez, J. C., Raymond, C. A., Vaughan, A. T., Ermakov, A. I., Zuber, M. T., Fu, R. R., Toplis, M. J., Russell, C. T., Nathues, A., Preusker, F. (2016) A partially differentiated interior for (1) Ceres deduced from its gravity field and shape, Nature 537, 515-517.
  24. Ruesch, O., Platz, T., Schenk, P., McFadden, L. A., Castillo-Rogez, J. C., Quick, L. C., et al. (2016) Cryovolcanism on Ceres, Science 353, aaf4286.
  25. Castillo, J. C., Young, E. D. (2016) Origin and Evolution of Volatile-Rich Planetesimals, In: Planetesimal Differentiation, Eds.: Elkins-Tanton, L., Weiss, B., Cambridge University Press.
  26. Thomas, C., Abell, P. A., Castillo-Rogez, J. C., Moskovitz, N., Mueller, M., Reddy, V., Rivkin, A. Ryan, E., Stansberry, J. (2016) Observing Near-Earth Objects with the James Webb Space Telescope, Publications of the Astronomical Society of Pacific 128, 018002.
  27. Rambaux, N., J. C., Chambat, F., Castillo-Rogez (2015) Relationship between global shape and interior structure in the case of rapid rotators - Application to Ceres, Astronomy & Astrophysics 584, id.A127, 8 pp.
  28. Castillo, J. C., Yoseph Bar-Cohen, Steve Vance, Mathieu Choukroun, Hyeong Jae Lee, Xiaoqi Bao, Mircea Badescu, and Stewart Sherrit, Melissa Grady Trainer, Stephanie Getty, Chapter 9: Sample handling and instruments for the in-situ exploration of ice-rich planets, In: Planetary Exploration of Cold Planets, edited by Y. Bar-Cohen, Springer.
  29. Huffman, W., Thompson, D. R., Bue, B., Castillo-Rogez, J., Boland, J. (2015) Autonomous Onboard Point Source Detection by Small Exploration Spacecraft, Publications of the Astronomical Society of the Pacific 127, 1279-1291
  30. Neveu M., Desch, S., Castillo-Rogez, J. C. (2015) Core cracking and hydrothermal circulation can profoundly affect Ceres' geophysical evolution, J. Geophys. Res., doi: 10.1002/2014JE004714.
  31. Fuchs, T., Thompson, D. R., Bue, B., Castillo-Rogez, J. C., Chien, S., Garibian, D., Wagstaff, K., Enhanced Flyby Science with Onboard Computer Vision: Tracking and Surface Feature Detection at Small Bodies, Earth and Space Science, 10.1002/2014EA000042.
  32. Grazier, K. R., Castillo-Rogez, J. C., Sharp, P. W. (2014) Dynamical delivery of volatiles to the outer main belt, Icarus 232, 13-21.
  33. Marchis, F., Durech, J., Castillo-Rogez, J., Vachier, F., Cuk, et al. (2014) The Puzzling Mutual Orbit of the Binary Trojan Asteroid (624) Hektor, The Astrophysical Journal Letters 783, id. L37, 6 pp.