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Chasing Extraterrestrial Intelligence

Current History, 2023
The search for intelligent life elsewhere in the universe has continued for decades without yielding any tangible results, as experts debate active versus passive approaches and the risks involved in sending signals of humans’ presence.
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Extraterrestrial Intelligence? Not Likely

Annals of the New York Academy of Sciences, 2001
Abstract: The possibility that there exist extraterrestrial creatures with advanced intelligence is considered by examining major events in mammalian, primate, and human evolution on earth. The overwhelming evidence is that the evolution of intelligence in creatures elsewhere who have the capability to communicate with us is vanishingly small.
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Tsiolkovsky and extraterrestrial intelligence

Acta Astronautica, 2000
Abstract Where is everybody? Fermi’s famous question about the apparent absence of evidence of extraterrestrials and the answers to it offered by Ball, Kuiper and Morris during the search for extraterrestrial intelligence (SETI) debates of the 1970s were anticipated in the writings of the pioneering Russian space theorist Konstantin Tsiolkovsky ...
B Finney, V Lytkin, L Finney
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The search for extraterrestrial intelligence

Nature, 2001
As far as we know, humanity is alone in the Universe: there is no definite evidence for the existence of extraterrestrial life, let alone extraterrestrial civilizations (ETCs) capable of communicating or travelling over interstellar distances. Yet popular speculation about the existence of ETCs abounds, including reports of alien visitations either now
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Do Extraterrestrials Have Sex (and Intelligence)?

Annals of the New York Academy of Sciences, 2000
Abstract:This thought experiment addresses the range of possible evolved psychologies likely to be associated with extraterrestrial (ET) intelligence. The analysis rests on: (1) a number of assumptions shared by the SETI project; (2) recent arguments concerning convergent evolution; and (3) current theories of how intelligence evolved in our own ...
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