Engineers at NASA’s Kennedy Space Center in Florida remove the vibration fixture on the Mass Spectrometer observing lunar operations (MSolo) instrument on Aug. 4, 2022. The activity followed a vibration test in preparation for the Polar Resources Ice Mining Experiment-1 (PRIME-1) mission, which will be the first in-situ resource utilization demonstration on the Moon. MSolo is a commercial off-the-shelf mass spectrometer modified to work in space and will help analyze the chemical makeup of landing sites on the Moon, as well as study water on the lunar surface. Researchers and engineers are preparing MSolo instruments to launch on four robotic missions as part of NASA’s Commercial Lunar Payload Services – commercial deliveries beginning in 2023 that will perform science experiments, test technologies, and demonstrate capabilities to help NASA explore the Moon and prepare for crewed missions to the lunar surface.