The Dust Concentration Monitor and the Millimeter Wave Doppler Radar undergo testing inside a regolith bin at the Granular Mechanics and Regolith Operations (GMRO) lab at the Kennedy Space Center’s Swamp Works on July 28, 2022, as part of Plume Surface Interaction (PSI) Instrumentation testing. The PSI Project is advancing both modeling and testing capabilities to understand exactly how rocket exhaust plumes affect a planetary landing site. This advanced modeling will help engineers evaluate the risks of various plumes on planetary surfaces, which will help them more accurately design landers for particular locations.