Geoffrey Collins is a Professor at Wheaton College and a planetary scientist using the tools of geology, geophysics, and remote sensing to learn about the other planets in our solar system. He is primarily interested in geological processes on the icy satellites of the outer solar system, and he has been involved with various NASA projects such as the Galileo mission to Jupiter and the Cassini mission to Saturn. He has also spent time researching geological processes on Europa, Enceladus, Dione, Titan, Venus, Triton, and Pluto, among others. He teaches a diverse set of courses, including Geology, The Solar System, Remote Sensing, Astrobiology, and Geophysics.