Carl Sagan on The Tonight Show with Johnny Carson (full interview, March 2nd 1978)
22:59
Clint Eastwood and David Letterman | Carson Tonight Show
9:04
1967: CARL SAGAN on the search for INTELLIGENT LIFE | Where Is Everybody? | BBC Archive
4:14
Carl Sagan Predicted The Mess 2021 Would Be 25 years Ago
9:24
The true story behind Carl Sagan’s cult classic, Contact | Jill Tarter for Big Think
16:54
Carl Sagan testifying before Congress in 1985 on climate change
8:17
How Would We Communicate with Alien Life? - with Carl Sagan
1:36:01
Carl Sagan's 1994 "Lost" Lecture: The Age of Exploration
2:07:07