Ray Wheeler is a plant physiologist at NASA’s Kennedy Space Center (KSC) where he leads Advanced Life Support research. Ray did his graduate work at Utah State University studying plant gravitational responses, and then went on to postdoctoral research at the University of Wisconsin, where he studied potatoes as a candidate crop for space life-support systems. His NASA research has focused on hydroponic cultivation approaches, studies of CO2 and light responses in plants, and whole canopy photosynthetic measurements.