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oct 2, 1994 - Carl Sagan: He is thought to be one of the first astronomers to suggest that there may exist on other planets. This influenced NASA to search the solar system for signs of life.
Added to timeline:
History of Astronomy Timeline
By
Andie Doscher
4 Dec 2021
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506
Date:
oct 2, 1994
Now
~ 31 years ago
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