English: A science instrument flying aboard the next delivery for NASA’s CLPS (Commercial Lunar Payload Services) initiative is planning to study how different materials react to the lunar environment. Regolith Adherence Characterization, or RAC, is one of 10 payloads set to be carried to the Moon by the Blue Ghost 1 lunar lander in 2025. Developed by Aegis Aerospace, RAC’s wheels feature a series of different sample materials, helping researchers to better understand how lunar dust repels or attaches to each. Investigations and demonstrations, such as RAC, launched on CLPS flights will help NASA study Earth’s nearest neighbor under Artemis and pave the way for future crewed missions on the Moon. NASA’s Marshall Space Flight Center in Huntsville, Alabama, manages the development for seven of the 10 CLPS payloads that will be carried on Firefly’s Blue Ghost lunar lander.