|  Ken NealsonKenneth
  H. Nealson is senior research scientist at the Jet Propulsion Laboratory where
  he is establishing the Astrobiology group, with the goal of developing methods
  for life detection in extreme environments on Earth, and perhaps in samples
  returned from non-Earth sites. He is also faculty associate at the California
  Institute of Technology.  He is a
  member of the National Academy of Sciences Subcommittee for Solar System
  Exploration. 
  
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