Carl Sagan: Biography from Answers.com Mobile

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Carl Sagan (American astronomer)

How did Carl Sagan popularize science? (history)

Carl Sagan (2011 calendar)

carl sagan is mentioned in:

God, The Universe, and Everything Else (1988 Science & Technology Film)

Cosmos, Episode 11: Persistence of Memory (1980 Science & Technology Film)

Cosmos, Episode 12: Encyclopaedia Galactica (1980 Science & Technology Film)