Astrobotic employee Troy Arbuckle, at right, Planetary Mobility lead mechanical engineer, and NASA employee A.J. Nick, with Kennedy Space Center’s Exploration and Research and Technology programs, observe the Astrobotic CubeRover during its test run in the Granular Mechanics and Regolith Operations Lab regolith bin at NASA’s Kennedy Space Center in Florida on Dec. 10, 2020. The regolith bin simulates the mechanical properties of the Moon’s surface. NASA and Astrobotic employees put the CubeRover through a series of more than 150 mobility tests over several days to evaluate and improve wheel design.