Carl Sagan on Charlie Rose: Demon-Haunted World
4:14
Carl Sagan Predicted The Mess 2021 Would Be 25 years Ago
1:36:01
Carl Sagan's 1994 "Lost" Lecture: The Age of Exploration
16:54
Carl Sagan testifying before Congress in 1985 on climate change
10:05
Carl Sagan’s Letter to Neil deGrasse Tyson
5:45
How to detect baloney the Carl Sagan way | Michael Shermer | Big Think
2:07:07
The 1993 Bunyan Lecture: Carl Sagan - “Is There Intelligent Life on Earth?”
20:28
Carl Sagan's last interview with Charlie Rose (Full Interview)
7:24