One of the greatest popularizers of science to have walked the Earth.
Carl Sagan achieved worldwide fame for his thirteen-episode series 'Cosmos: A Personal Voyage'.
His research was what brought about the theory of a nuclear
winter as the result of nuclear warfare.
Carl Sagan criticized
society and advocated skeptical thought. He had strong, yet calm,
power in his voice, and with it, the
power to pull out a feeling in one's body, a feeling of longing. A yearning to learn, and a desire to venture outside our small planet.
Carl Sagan died in 1996 of pneumonia, but he lives on in any one who has ever listened to him and taken heed of his words.