James F. Bell III is a Professor of Astronomy at Arizona State University, specializing in the study of planetary geology, geochemistry and mineralogy using data obtained from telescopes and from various spacecraft missions. Dr. Bell's active research has involved the NASA Mars Pathfinder, Near Earth Asteroid Rendezvous, Comet Nucleus Tour, 2001 Mars Odyssey, Mars Reconnaissance Orbiter, Lunar Reconnaissance Orbiter, and the Mars Science Laboratory missions. His book Postcards from Mars includes many images taken by the Mars rovers. Dr. Bell is currently an editor of the space science journal Icarus and president of The Planetary Society. He has served as the lead scientist in charge of the Panoramic camera color imaging system on Mars rovers Spirit and Opportunity.