"Relativity does set limits on what humans can ultimately do. But the universe is not required to be in perfect harmony with human aspirations."
About Carl Sagan
Carl Edward Sagan was an American astronomer, planetary scientist and science communicator. Initially an assistant professor at Harvard, Sagan later moved to Cornell, where he was the David Duncan Professor of Astronomy and Space Sciences and directed the Laboratory for Planetary Studies. He played an active role in the Mariner, Viking and Voyager programs.
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