1. NASA Goddard Space Flight Center, Greenbelt, Maryland, USA.
2. Center for Space Sciences and Technology, University of Maryland, Baltimore, Maryland, USA.
3. Georgetown University, Washington, DC, USA.
4. Santa Fe Institute, Santa Fe, New Mexico, USA.
5. Blue Marble Space Institute of Science, Seattle, Washington, USA.
6. Northern Arizona University, Flagstaff, Arizona, USA.
7. Department of Geological Sciences, University of Colorado Boulder, Boulder, Colorado, USA.
8. Sant'Anna School of Advanced Studies, The BioRobotics Institute, Pisa, Italy.
9. NASA Ames Research Center, Mountain View, California, USA.
10. Georgia Institute of Technology, Atlanta, Georgia, USA.
11. Lawrence Livermore National Laboratory, Livermore, California, USA.