Video encyclopedia

20/12/1996 Popular physicist dies


Carl Sagan


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


Carl Sagan Biography (english audio) A Cosmic Celebrity


Carl Sagan On Alien Civilizations


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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