Skip Navigation

Elodie Lesage

Photo of Elodie Lesage


4800 Oak Grove Drive

M/S 183-301

Pasadena, CA 91109



Curriculum Vitae:

Click here

Member of:

Planetary Interiors and Geophysics


Elodie is a Postdoctoral Researcher in the Planetary Interiors and Geophysics Group at JPL where she studies the Ocean Worlds of the outer solar system.

Elodie obtained a B.S. in Physics in Nice, France and a M.S. and Ph.D. in Planetary Sciences in Paris. During her graduate studies, Elodie got fascinated by the Jupiter’s moon Europa and began to model the transport of water through its icy shell. She combines models developed for Earth magma chambers and ice mechanics to understand under which conditions liquid water could erupt on Europa’s surface. Elodie also got specialized in the generation of Digital Elevation Models (DEMs) of Europa’s surface through innovative techniques in order to maximize the information we have on potential past water eruptions.

Now, as a postdoc, Elodie continues to model the cryovolcanic activity of Europa and other Ocean Worlds of our solar system and beyond and works on optimizing the DEMs of the icy moon surfaces. She applies her research to the development of probes aiming to reach subsurface water on Europa. She also joined the Europa Clipper mission adventure as a Project Science Affiliate.

Outside of her research, Elodie is passionate about outreach and loves sharing her excitement for the Ocean Worlds and their exploration.


  • 2020: Ph.D., Structure and Interior of the Earth and Other Planets, Paris-Saclay University, France
  • 2017: M.S., Planetary Sciences and Space Exploration, Paris-Saclay University, Orsay, France
  • 2015: B.S., Physics, Nice Sophia-Antipolis University, Nice, France

Professional Experience

  • 2021 – pres: Postdoctoral Researcher, Jet Propulsion Laboratory, California Institute of Technology
  • 2021 – pres: Europa Clipper Project Science Postdoctoral Affiliate
  • 2020 – 2021: Postdoctoral Researcher, GEOPS, Paris-Saclay University, France
  • 2017 – 2020: Teaching Assistant, Earth Science Department, Paris-Saclay University (192 credit hours)
  • 2017 – 2020: Graduate Research Assistant, GEOPS, Paris-Saclay University, France

Research Interests

  • Ocean Worlds
  • Water transport through icy shells
  • Numerical modelling
  • Digital elevation models

Selected Publications

  • Wynne J. J. et al., incl. Lesage E. (2022) Planetary Caves: A Solar System View of Processes and Products. JGR-Planets, under review
  • Lesage E., Massol H., Howell S. M., Schmidt F. (2022) Viscoelastic deformation of freezing cryomagma reservoirs: application to Europa. The Planetary Science Journal, under review
  • Lesage E., Schmidt F., Andrieu F., Massol H. (2021) Constraints on effusive cryovolcanic eruptions on Europa using topography derived from Galileo images, Icarus, Volume 361. Doi: 10.1016/j.icarus.2021.114373
  • Lesage E., Massol H. and Schmidt F. (2020) Cryomagma ascent on Europa, Icarus, Volume 335. Doi: 10.1016/j.icarus.2019.07.003


Europa Clipper