1. Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts, USA.
2. Blue Marble Space Institute of Science, Seattle, Washington, USA.
3. Department of Planetology and Habitability, Centro de Astrobiología (CSIC-INTA), Madrid, Spain.
4. Instituto de Ciencias Biomédicas, Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Santiago, Chile.
5. Exobiology Branch, NASA Ames Research Center, Moffett Field, California, USA.
6. Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts, USA.
7. Department of Biology, Boston University, Boston, Massachusetts, USA.
8. Geological and Planetary Sciences, California Institute of Technology/NASA Jet Propulsion Laboratory, Pasadena, California, USA.
9. Mineral Sciences, Los Angeles Natural History Museum, Los Angeles, California, USA.
10. Earth-Life Science Institute, Tokyo Institute of Technology, Tokyo, Japan.
11. School of Natural Sciences, Institute for Advanced Study, Princeton, New Jersey, USA.
12. Geographical Research Laboratory, Carnegie Institution of Washington.