Space: Frank Drake wrote his famous "Drake equation" in 1961 t…

Question

Did you know? Frank Drake wrote his famous "Drake equation" in 1961 to estimate the number of contactable civilisations in the Milky Way. The equation N = R × fp × ne × fl × fi × fc × L has 7 unknown variables. Estimates range from 0 to over a million. We literally don't know if we are alone.

Accepted Answer

Frank Drake wrote his famous "Drake equation" in 1961 to estimate the number of contactable civilisations in the Milky Way. The equation N = R × fp × ne × fl × fi × fc × L has 7 unknown variables. Estimates range from 0 to over a million. We literally don't know if we are alone.

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