While at NASA he led the Agency’s work in rocket blast effects for human-class missions. He participated in architecture studies for the Lunar Architecture Team, the Mars Architecture Team and the Lunar Exploration Analysis Group, and he helped develop NASA’s technology roadmap for planetary surface technologies. He has also led projects to develop extraterrestrial excavators, regolith conveyance technologies, dust-tolerant quick disconnects, lunar/martian landing pads, and other surface systems technology. He co-founded NASA’s biannual Workshop on Granular Materials in Lunar and Martian Exploration and is a founding member of the ASCE Technical Committee for Regolith Operations, Mobility and Robotics. He received the astronaut’s Silver Snoopy award in 2010 and was selected as the Kennedy Space Center’s NASA Scientist/Engineer of the Year for 2011.