I am a philosophy professor at Roane State Community College in Oak Ridge, Tennessee. Planetary exploration has always been an interest of mine. You can follow me on twitter @tedstryk for the latest updates on my work, which I often post on my blog, Planetary Images from Then and Now. Please note that since the processed images are copyrighted, they should not be reused without permission. If you are interested in using any of my work, please contact me at [email protected] or [email protected].