Beverly Kemmerer and Austin Adkins perform testing with a Millimeter Wave Doppler Radar at NASA’s Kennedy Space Center’s Granular Mechanics and Regolith Operations Lab on July 16, 2021. The testing at the Florida spaceport is part of a project to identify a suite of instrumentation capable of acquiring a comprehensive set of flight data from a lunar lander. Researchers at NASA will use that data to validate computational models being developed to predict plume surface interaction effects on the Moon.