Carl Sagan on the Existence of God
7:24
Cosmos - Carl Sagan - 4th Dimension
52:11
Carl Sagan, Stephen Hawking and Arthur C. Clarke - God, The Universe and Everything Else (1988)
1:01:36
Carl Sagans Cosmos - Episode 8 - Journeys in Space & Time
20:28
Carl Sagan's last interview with Charlie Rose (Full Interview)
6:25
Carl Sagan on Extraterrestrials
1:36:01
Carl Sagan's 1994 "Lost" Lecture: The Age of Exploration
15:59
Richard Dawkins - Best Points
5:41