1. The Planetary Society, Pasadena, California, USA.
2. Stellar Exploration, Inc., San Luis Obispo, California, USA.
3. Vector Design, Hereford, Arizona, USA.
4. Space Research Institute (IKI), Moscow, Russia.
5. Lomonosov Moscow State University, Moscow, Russia.
6. Novozymes NA, Franklinton, North Carolina, USA.
7. George Mason University, Manassas, Virginia, USA.
8. German Aerospace Center (DLR e. V.), Institute of Aerospace Medicine, Radiation Biology Department, Cologne (Köln), Germany.
9. Department of Environmental Science and Bioscience, Kristianstad University, Kristianstad, Sweden.
10. Independent, Houston, Texas, USA.
11. University of Houston, Houston, Texas, USA.
12. Caltech, Pasadena, California, USA.
13. Earth-Life Science Institute, Tokyo Institute of Technology, Meguro-ku, Tokyo, Japan.
14. German Aerospace Center (DLR e. V.), Executive Board Division Space Research and Development, Programme Space R&D, Cologne (Köln), Germany.