1. Department of Chemistry; Tufts University; Medford; Massachusetts; USA
2. Jet Propulsion Laboratory; California Institute of Technology; Pasadena; California; USA
3. SETI Institute; NASA Ames Research Center; Moffett Field; California; USA
4. Department of Earth and Space Sciences; University of Washington; Seattle; Washington; USA
5. Space Science Institute; Boulder; Colorado; USA
6. NASA Johnson Space Center; Houston; Texas; USA