Related articles:
Fermi paradox
SETI
Extraterrestrial life
Carl Sagan
Life
Abiogenesis
Rare Earth hypothesis
Kardashev scale
Planet
Key terms:
em
planets
civilizations
galaxy
seti
drake equation
intelligent
times f
communicate
fraction
green bank
lak
tus
gah
meti
our galaxy
extraterrestrial
interstellar
planetary
fermi paradox
assumptions
intelligent life
carl sagan
estimated by drake
per star
habitable zones
life on earth
number of planets
average number
same planet
short story
frank drake
abiogenesis
roddenberry
planet where
develop life
fraction of the above
degrees of freedom
reappearance number
above that actually go
such civilizations
green bank meeting
actually go on to develop
able to communicate
star formation rate
anthropic principle
potentially support
extraterrestrial civilizations
extraterrestrial communication
fraction of communicative civilizations
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