Paul D. Spudis
Paul D. Spudis, a member of the Aldridge Commission, is "a planetary scientist at the Johns Hopkins University Applied Physics Laboratory. His specialty is the geology of the moon. He has also studied the geology of Mars, Mercury, and many other worlds. He was the deputy leader of the science team for the Clementine lunar mission in 1994. Spudis remains active with NASA and National Academy of Sciences committees. His B.S. in geology is from Arizona State University; an M.S. from Brown University, and his Ph.D. is from Arizona State University." 
From the MarsBlog at the Louisiana Mars Society, January 31, 2004:
- LPI Home Page and Info.
- Author: The Once and Future Moon (science).