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About

Dr. Jenna Delaney is a leading figure in planetary science and astroinstrumentation, best known for her transformative contributions to in-situ geochemical analysis on Mars. Her primary research focuses on the development and application of X-ray fluorescence spectrometry for planetary exploration, enabling high-resolution mapping of elemental composition on extraterrestrial surfaces. Dr. Delaney’s most impactful work is the design and implementation of PIXL (Planetary Instrument for X-Ray Lithochemistry), a micro-focus X-ray fluorescence spectrometer aboard NASA’s Perseverance rover. This instrument, detailed in her highly cited 2020 paper (135 citations), has revolutionized our ability to identify biosignatures and understand the geological history of Jezero Crater. By providing precise, non-destructive chemical analyses at a microscopic scale, PIXL has directly supported the rover’s mission to collect samples for future return to Earth. Dr. Delaney’s contributions have not only advanced planetary instrumentation but have also set new standards for in-situ geochemistry, making her a pivotal figure in the search for past life on Mars.