Lee also participated in field tests of NASA's Surface Exploration Vehicle (SEV), formerly known as the Lunar Exploration Rover (LER) or Small Pressurized Rover (SPR). In August 2008, Lee was pilot scientist of the first field test of the SEV, which was conducted under the auspices of the NASA Desert RATS project at the Black Point Lava Flow site in Northern Arizona. NASA Astronaut Rex Walheim was pilot commander of the 1-day mission. The SEV was developed at the NASA Johnson Space Center principally under the leadership of astronaut Michael Gernhardt and robotics engineer Robert Ambrose.