1. Honeybee Robotics; New York New York USA
2. Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
3. Center for Radiophysics and Space Research, Astronomy Department; Cornell University; Ithaca New York USA
4. Department of Earth and Planetary Sciences; Washington University; St. Louis Missouri USA
5. Center for Planetary Science, Niels Bohr Institute for Astronomy, Physics and Geophysics; University of Copenhagen; Copenhagen Denmark
6. Institute of Space Simulation; German Aerospace Center (DLR), Liner Hoehe; Cologne Germany