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About

Delphine Faye is a leading planetary seismologist whose work has fundamentally advanced our understanding of the internal structure of Mars. Her primary research focuses on Martian geophysics, seismic instrumentation, and the analysis of planetary wavefields. Faye’s most significant contribution is her central role in the SEIS (Seismic Experiment for Internal Structure) instrument aboard NASA’s InSight mission. As a key architect of this groundbreaking seismometer—which combines a long-period Very Broad Band (VBB) sensor with a short-period instrument—she helped overcome decades of technical challenges to finally place a high-fidelity seismometer on the Red Planet. Her 2019 paper detailing SEIS, which has garnered over 375 citations, serves as the definitive reference for the mission’s seismic data. Through her meticulous work, Faye has enabled the first direct measurements of marsquakes, revealing the planet’s crust, mantle, and core thickness. Her efforts have transformed Mars from a seismological mystery into a world with a known internal heartbeat, making her an indispensable figure in planetary science and a role model for students aspiring to explore other worlds.