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Drake Equation: Estimating the Odds of Finding ET - Space.com

First proposed by radio astronomer Frank Drake in 1961, the equation calculates the number of communicating civilizations by multiplying several variables. It's usually written, according to the Search for Extraterrestrial Intelligence (SETI), as: N ...

Submitted in section: Paranormal news 2013: Drake Equation: Estimating the Odds of Finding ET - Space.com