carlsagandotcom
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What would a memorial for nuclear war look like?
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“The suppression of uncomfortable ideas…”
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Carl Sagan describes our place in the universe
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50th re-dedication of the Eternal Light Peace Memorial speech by Carl Sagan and Ann Druyan
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Who Speaks For Earth?
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Carl Sagan teaching students about the Milky Way galaxy
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The scientific illiteracy of Americans is scandalous
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Carl Sagan on why NASA should go to mars
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“The Persistence of Memory”
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Carl Sagan on Star Wars in 1978
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Laws of Nature
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Voyager's 45th Anniversary with Ann Druyan, Creative Director of NASA Voyager Interstellar Message
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“In the Cosmos, there is no refuge from change.”
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Carl Sagan explains how the Ancient Greek knew the earth was round
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Carl Sagan testifying before Congress in 1985 on climate change
