1. Instituto de Astronomía y Física del Espacio (IAFE), UBA—CONICET, Ciudad Autónoma de Buenos Aires, Argentina.
2. Department of Biology, Carleton College, Northfield, Minnesota, USA.
3. University of Washington Astronomy Department and Astrobiology Program, Seattle, Washington, USA.
4. Blue Marble Space Institute of Science, Seattle, Washington, USA.
5. Centro de Investigación Biomédica, Universidad Autónoma de Chile, Santiago, Chile.
6. Lamont-Doherty Earth Observatory, Columbia University, Palisades, New York, USA.
7. Department of Biology, University of Utah, Salt Lake City, Utah, USA.
8. Institut für Planetologie, University of Münster, Münster, Germany.
9. Polar Science Center, Applied Physics Laboratory, University of Washington, Seattle, Washington, USA.
10. Planetary Science Institute, Research School of Earth Sciences, Research School of Astronomy and Astrophysics, The Australian National University, Canberra, Australia.
11. Earth and Planetary Science, McGill University, and the McGill Space Institute, Montréal, Canada.
12. Society for Science & the Public, Washington, DC, USA.
13. Carnegie Institute for Science, Washington, DC, USA.
14. Department of Geosciences, Weber State University, Ogden, Utah, USA.
15. IAM-Departamento de Fisica, CUCEI, Universidad de Guadalajara, Guadalajara, México.
16. Brazilian Synchrotron Light Laboratory, Campinas, Brazil.
17. School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, Georgia, USA.
18. Science Foundation Ireland, Dublin, Ireland.
19. Southwest Research Institute, San Antonio, Texas, USA.
20. School of Earth and Ocean Sciences, University of Victoria, Victoria, Canada.
21. American Society for Microbiology, Washington, DC, USA.
22. Arizona State University, Tempe, Arizona, USA.
23. Harvard University, Organismic and Evolutionary Biology, Cambridge, Massachusetts, USA.
24. Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Budapest, Hungary.
25. Johnson & Wales University, Denver, Colorado, USA.
26. Rensselaer Polytechnic Institute, Troy, New York, USA.
27. Earth Life Science Institute, Tokyo Institute of Technology, Tokyo, Japan.
28. Laboratoire Lagrange, UMR 7293, Université Nice Sophia Antipolis, CNRS, Observatoire de la Côte d'Azur, Nice, France.
29. University of Central Florida, Orlando, Florida, USA.
30. Department of Earth Sciences, The University of Western Ontario, London, Canada.
31. Royal Observatory of Belgium, Brussels, Belgium.
32. University of Southern California, Los Angeles, California, USA.
33. Department of Astronomy, Harvard University, Cambridge, Massachusetts, USA.
34. University of St. Andrews, St. Andrews, UK.
35. University of Washington, Seattle, Washington, USA.
36. University of California, Riverside, California, USA.
37. Novozymes A/S, Bagsvaerd, Denmark.
38. School of Earth and Space Exploration and Beyond Center for Fundamental Concepts in Science, Arizona State University, Tempe, Arizona, USA.
39. Department of Earth and Planetary Sciences, Washington University in St. Louis, St. Louis, Missouri, USA.