Seth Shostak on the Possibility of 'Universal Biology'
Owen Gingerich on the Role of Chance in Biological
History and SETI
Irven DeVore on the Chances of SETI being Successful
John Barrow on the Role of Chance in Biological History
Seth Shostak on the Likelihood of Detecting Intelligent
John Barrow on the Evolution and Longevity of
John Barrow on the Connection Between SETI and Religion
Seth Shostak on the Impact of Discovering ET on
Jill Tarter on the Social Impact of Discovering ET
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Is There Intelligent Life Elsewhere in the Universe?