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About

L. R. Gaddis is a planetary scientist whose research centers on lunar cartography, volcanic processes, and the geological exploration of the Moon. With a career spanning decades of lunar science, Gaddis has made significant contributions to our understanding of how the Moon formed, evolved, and continues to be explored. Their most-cited work includes contributions to studies of post-differentiation magmatism and a landmark review of lunar cartographic progress in the 2000s, which documented a new golden age of international lunar exploration (24 citations). Gaddis has also contributed to comprehensive overviews of recent lunar missions since 2006, helping the broader planetary science community synthesize decades of orbital, robotic, and human exploration data (23 citations). Their applied work extends to mission planning, including landing site selection for the MoonRise South Pole-Aitken Basin sample return concept and geological traverse planning for the Artemis program's Mons Malapert target site. Research into end-member volcanism at the Aristarchus Plateau further reflects Gaddis's sustained focus on lunar volcanic diversity. Across these contributions, Gaddis exemplifies the integration of remote sensing, geologic mapping, and mission support that drives modern planetary exploration forward.