Rita Parai

Rita Parai is an Associate Professor in the Department of Earth, Environmental, and Planetary Sciences at Washington University in St. Louis, associated with the McDonnell Center for the Space Sciences. She holds a PhD from Harvard University and joined Washington University in 2016. Her research focuses on high-precision noble gas isotopic analyses to investigate planetary formation, mantle dynamics, and volatile cycling. Key areas include subduction zone processes, mantle heterogeneity, and lunar formation history.

Her work addresses questions such as the timing of the Moon-forming impact, volatile recycling through subduction zones, and the origin of mantle heterogeneities. She leads projects analyzing noble gas signatures in mantle-derived rocks, including anorthosites and basalts, to trace Earth's geochemical evolution. Parai collaborates on missions like VATMOS-SR (Venus Atmospheric Sample Return) and ANGSA (Apollo Next Generation Sample Analysis), emphasizing sample return and analytical innovation.

• Education: PhD, Harvard University
• Labs: High-precision noble gas laboratory at Washington University
• Grants: NSF CAREER award (2022) for studying noble gases in the Azores Archipelago

Parai’s research bridges geochemistry and planetary science, with implications for understanding Earth’s volatile budget, mantle convection, and the interplay between surface and deep-Earth processes.