Monica Palaseanu-Lovejoy, USGS Geology, Minerals, Energy, and Geophysics Science Center, Reston, United States, Shashank Bhushan, University of Maryland, Greenbelt, United States, Oleg Alexandrov, NASA Ames Research Center, Intelligent Robotics Group, Moffett Field, CA, United States, David E Shean, University of Washington, Department of Civil and Environmental Engineering, Seattle, United States and Joe-Paul Swinski, NASA, Goddard Space Flight Center, Greenbelt, MD, United States