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20/12/1996 Popular physicist dies

4:07

Carl Sagan

9:30

4th Dimension - Tesseract, 4th Dimension Made Easy - Carl Sagan

44:51

Carl Sagan Biography (english audio) A Cosmic Celebrity

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Carl Sagan On Alien Civilizations

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Carl Sagan on The Tonight Show with Johnny Carson (full interview, March 2nd 1978)

American astronomer and exobiologist Carl Sagan is most known from his many appearances in popular science TV shows and his books for a general audience. He researched the climate of the planets and moons in the Solar System, speculated about nuclear winter on Earth and extra-terrestrial life and intelligence. Sagan also worked for on Mariner, Viking, and Voyager probes.
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