Dr. Martin Ross leads research concerning the effects of space systems on the stratosphere at The Aerospace Corporation in El Segundo, CA. He holds a PhD in Planetary and Space Physics from UCLA and a BS in Aerospace Engineering from the University of Michigan. He is the author of over 50 papers on a wide variety of subjects in science and engineering and an Adjunct Professor at Embry-Riddle Aeronautical University, teaching physics, meteorology, and the history of science. At UCLA he studied the evolution of the internal structures of the outer planet satellites, turning to the atmospheric sciences after joining The Aerospace Corporation in 1988. At Aerospace, studies of middle and upper atmosphere dynamics naturally lead to an interest in the problem of the impact of rocket engine emissions on stratospheric ozone. Dr. Ross has provided technical leadership for a number of diverse of Air Force and NASA supported projects including RISO, ACCENT, WAVE, and is developing new interagency strategies to better understanding the scientific, economic, and policy implications of the impact of space systems on stratospheric ozone.