Unlike many of my peers, I did not want to become an astronaut as a teenager, during the Apollo missions. It was the environmental movement that I cared about, and the Moon and space showed that our home planet is precious and unique. I studied Forest Biology, worked on soil conservation and reforestation in the Peace Corps (Guatemala), and worked for the Soil Conservation Service. But scientific research was in my blood, so I returned to school to study geology and was lucky enough to get a job at the U.S. Geological Survey's Center for Astrogeology in Flagstaff, Arizona. I found image processing to be especially rewarding, and processed color image mosaics of many planets and satellites. These images have been reproduced in hundreds of books, magazines, and television programs, and have probably done more to advance planetary exploration then all the scientific papers I’ll ever publish. In 1996 I moved to the University of Arizona, where I am now a professor of planetary science.