Video: Carl Sagan Explains the Drake Equation

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The most famous American astronomer and astrophysicist Carl Sagan explains the Drake equation.

The Drake equation (rarely also called the Green Bank equation or the Sagan equation) is a famous result in the speculative fields of xenobiology, astrosociobiology and the search for extraterrestrial intelligence.

The Drake equation states that:

N = R* Ã
Views: 3,247
Added: 16 years ago.
Topic: Astrobiology

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