Charles Elachi

Charles Elachi is Professor Emeritus of Electrical Engineering and Planetary Science at Caltech, renowned for pioneering spaceborne active microwave instrumentation and planetary surface analysis. As former Director of JPL (2001-2016), his research transformed remote sensing capabilities for Earth and planetary observation through fundamental advances in electromagnetic theory and wave propagation.

Elachi's research focuses on developing novel radar instrumentation for planetary exploration, electromagnetic scattering theory, and interpretation of extraterrestrial surface data. His work enables detailed mapping of planetary bodies through advanced signal processing techniques.

Recent publications demonstrate Elachi's ongoing contributions to ice-penetrating radar technology for ocean world exploration and spectral analysis of Titan's surface features. His career publications establish foundational methods for extracting geophysical information from radar returns.

• Chevalier de la Légion d'Honneur
• Distinguished Alumni Award
• IEEE Microwaves Pioneer recognition

Elachi's leadership at JPL involved overseeing numerous NASA missions including Mars rovers and deep space probes. His academic work continues to shape instrument design for upcoming missions to Europa and other ocean worlds.