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Drake Equation

Category
Science
Related
Fermi ProblemFermi Paradox
Drake Equation

Definition

A probabilistic argument used to estimate the number of active, communicative extraterrestrial civilizations in the Milky Way galaxy.

Origin

The equation was written in 1961 by Frank Drake as a way to stimulate scientific dialogue at the first meeting on the Search for ExtraTerrestrial Intelligence (SETI).