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Today would have been Carl Sagan's 75th birthday. His life and work were monumental in astronomy and public outreach, and he had a profound influence on many people. I count myself among those who say they might not be where they are today were it not for Carl Sagan. Reading his books such as "Cosmos" and "Demon Haunted World" broadened my horizons when I needed it most. One of my favorite books of all time is "Pale Blue Dot" which really puts everything in perspective..