Dr. Thomas A. Easton: Carl Sagan and the War Against Baloney
To quote in part:
Perhaps it was science fiction that gave Sagan his initial interest
in flying saucers and his lifelong interest in extraterrestrial life.
In 1960, he was concerned with the possibility that a Moon landing
could contaminate a pristine world. Within the decade, he was focusing
on the problem of discovering and communicating with extraterrestrial
intelligences. In the seventies, he was consumed by the Viking Mars
landers and their search for signs of life. He helped attach pictorial
messages to the Pioneer spacecraft and recorded messages to the Voyagers.
Later came the novel Contact (1985) and of course his efforts to spread
the word of nuclear winter, which helped as much as anything to end the
Cold War. Poundstone tells us that he was proudest of this work.
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