Related terms:
arecibo message
carl sagan
detect
drake equation
extraterrestrial
extraterrestrial civilizations
extraterrestrial life
fermi
intelligent life
interstellar
radio telescope
seti
seti institute
technologically advanced
telescope
Wikipedia sources:
Communication with Extraterrestrial Intelligence
Fermi paradox
SETI
SETI@home
Context for words:
extraterrestrial
intelligence
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