Scott Hensley, Razi Ahmed, Bruce Chapman, Brian Hawkins, Marco Lavalle, Naiara Pinto, NASA Jet Propulsion Laboratory, United States; Matteo Pardini, Konstantinos Papathanassiou, German Aerospace Center, Germany; Paul Siqueira, University of Massachusetts, Amherst, United States; Robert Treuhaft, NASA Jet Propulsion Laboratory, United States