scientificphilosopher:bonneibennett: - Carl Sagan, Cosmos: A Spacetime Odyssey Happy Birthday to o
scientificphilosopher: bonneibennett: - Carl Sagan, Cosmos: A Spacetime Odyssey Happy Birthday to one of my personal heroes, Carl Edward Sagan (November 9, 1934 – December 20, 1996) -- source link
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