Ronald Greeley was a Regents’ Professor in the School of Earth and Space Exploration at Arizona State University , the Director of the NASA-ASU Regional Planetary Image Facility , and Principal Investigator of the Planetary Aeolian Laboratory at NASA-Ames Research Center. He was involved with lunar and planetary studies since 1967 and most recently focused his research on understanding planetary surface processes and geologic histories. Wikipedia*
On the C-SPAN Networks:
Ronald Greeley has one video in the C-SPAN Video Library; the first appearance was a 1997 News Conference.