1. Space Biosciences Division, NASA Ames Research Center, Moffett Field, California.
2. School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, Australia.
3. FILMSS Wyle, Space Biology, NASA Ames Research Center, Moffett Field, California.
4. Australian Centre for Astrobiology, University of New South Wales, Sydney, Australia.