Brandi L Carrier¹, David W Beaty¹, Michael A Meyer², Corien Bakermans³, Penelope Jane Boston⁴, Thomas L Kieft⁵, Richard J Leveille⁶, Rachel Mackelprang⁷, Tullis C Onstott⁸, Richard C. Quinn⁹, Andrew C. Schuerger¹⁰ and Mary A Voytek¹¹, (1)Jet Propulsion Laboratory, Pasadena, CA, United States, (2)NASA HQ, Washington, DC, United States, (3)Pennsylvania State University Penn State Altoona, Division of Mathematics and Natural Sciences, Altoona, PA, United States, (4)NASA Astrobiology Institute, Moffett Field, CA, United States, (5)New Mexico Institute of Technology, Department of Biology, Socorro, NM, United States, (6)McGill University, Department of Earth and Planetary Sciences, Montreal, QC, Canada, (7)California State University Northridge, Northridge, CA, United States, (8)Princeton University, Department of Geosciences, Princeton, NJ, United States, (9)NASA Ames Research Center, Moffett Field, CA, United States, (10)University of Florida, Department of Plant Pathology, Gainesville, FL, United States, (11)NASA, Washington, DC, United States