Epsilon Eridani
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What links here
Frank Drake
The Planetary Society
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Arecibo Observatory
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Thomas Gold
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Voyager Golden Record
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Kardashev scale
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Norwood, Ohio
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Aptos, California
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List of astronomers
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Gravitational lens
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Jupiter
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Tau Ceti
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Search for extraterrestrial intelligence
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September 2
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Prime number
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Fermi paradox
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Extraterrestrial life
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Drake equation
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Douglas Hofstadter
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Hypothetical types of biochemistry
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Carl Sagan
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Ann Druyan
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Astrobiology
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