52:11
Carl Sagan, Stephen Hawking and Arthur C. Clarke - God, The Universe and Everything Else (1988)
TheScienceFoundation
20:28
Carl Sagan's last interview with Charlie Rose (Full Interview)
bailesie
55:27
COLORES | Trinity: Getting The Job Done | New Mexico PBS
NMPBS Originals
2:22
Diamonds are bull$#!t
Hannah Fry
