1. Imperial College London, Earth Science and Engineering, South Kensington Campus, London, UK.
2. The Pennsylvania State University, Geosciences, University Park, Pennsylvania, USA.
3. NASA Headquarters, Mars Sample Return Program, Washington, DC, USA.
4. European Space Research and Technology Centre, Noordwijk, South Holland, Netherlands.
5. West Virginia University, Department of Geology and Geography, Morgantown, West Virginia, USA.
6. Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA.
7. NASA Goddard Space Flight Center, Astrochemistry, Greenbelt, Maryland, USA.
8. Rutgers University Newark College of Arts and Sciences, Earth and Environmental Sciences, Newark, New Jersey, USA.
9. University of Colorado, Department of Chemistry and Biochemistry, Boulder, Colorado, USA.
10. University of Tuscia, Department of Ecological and Biological Sciences, Largo dell'Università snc Viterbo, Italy.
11. Queens University, Kingston, Canada.
12. NASA Ames Research Center, Moffett Field, California, USA.
13. Natural History Museum, Department of Earth Sciences, London, UK.
14. University of St Andrews, School of Earth and Environmental Sciences, St Andrews, Fife, UK.
15. Michigan State University, Earth and Environmental Sciences, East Lansing, Michigan, USA.
16. Smithsonian Institution, Department of Mineral Sciences, National Museum of Natural History, Washington, DC, USA.
17. Arizona State University, School of Earth and Space Exploration, Tempe, Arizona, USA.