EXCLUSIVE: Legendary astronomer and astrophysicist Carl Sagan, who expanded scientific understanding of the universe and helped millions appreciate the wonders of the cosmos, will be the subject of an ...
The Chosun Ilbo on MSN
Carl Sagan's 'Cosmos' captures universe's vastness, Earth's fragility
Sagan proposed that Voyager 1, which had ventured into space, turn around and take a photograph of Earth to transmit back.
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