A recent Reddit post quickly gained momentum when a user posted a photo of a passage from Carl Sagan's 1996 book, "The Demon Haunted World." The book, known for the examination of scientific thinking, ...

(CNN) -- He was a scientist's scientist, and brought new insights both to fellow experts and laymen. Though astronomer Carl Sagan died last December, his presence is still keenly felt -- both in ...

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All 14(?) episodes of Carl Sagan's Cosmos was on google video a few weeks ago but now it doesn't appear to be. Too bad. I downloaded them all while they were available but I haven't got around to ...

Carl Edward Sagan (November 9, 1934 – December 20, 1996) was an American astronomer, cosmologist, astrophysicist, astrobiologist, author, science popularizer, and science communicator in astronomy and ...