A Dialogue: A Conversation with Carl Sagan and Ted Turner (1989)

Updates a number of themes from the Cosmos television series. Turner and Sagan discuss issues that are vital to our survival: pollution, the greenhouse effect, and nuclear weapons. Dr. Sagan explains the benefits of our space program and the possibility of time travel.

Release Date: 1989-11-01
  • Language: en
  • Runtime: 44
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