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A Dialogue Between Carl Sagan and Ted Turner

Carl Sagan and Ted Turner discuss the issues that are vital to the survival of our species on earth. Sagan explains the benefits of our space program, the fascinating possibility of time travel, and our search for life on other worlds.

English français
  • Originally Aired April 18, 1989
  • Runtime 60 minutes
  • Network PBS
  • Created May 2, 2010 by
    Administrator admin
  • Modified December 15, 2023 by
    reacocard