Who talks about this person
Joan Ganz Cooney
Joan Ganz Cooney on Carl Sagan's input on the creation of the science program, 3-2-1 Contact
01:08
Bill Monroe
Bill Monroe on Carl Sagan's appearance on Meet the Press, and various other memorable guests
02:57
Bill Nye
Bill Nye on learning astronomy from Professor Carl Sagan at Cornell and the influence Sagan had on his life
04:03