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Vritika Singh is a leading figure in planetary science and astroinstrumentation, best known for her pivotal role in developing the Planetary Instrument for X-Ray Lithochemistry (PIXL). As a key contributor to this micro-focus X-ray fluorescence spectrometer, Singh helped design the instrument now operating on NASA’s Perseverance rover, enabling high-resolution elemental mapping of Martian rocks. Her work on PIXL, detailed in a seminal 2020 paper with over 135 citations, has revolutionized in situ geochemical analysis on Mars, directly supporting the mission’s search for ancient biosignatures. Beyond PIXL, Singh’s research spans X-ray spectroscopy, planetary surface processes, and instrument miniaturization for extreme environments. Her contributions have been recognized with NASA group achievement awards and invitations to speak at major planetary conferences. With her instrument’s data already informing key discoveries about Jezero Crater’s past habitability, Singh’s impact continues to grow, making her a vital voice in the next generation of space exploration.