Definition of Drake equation in English:

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Drake equation

noun

Astronomy
A speculative equation which gives an estimate of the likelihood of discovering intelligent extraterrestrial life in the galaxy, formulated by the US astronomer Frank Drake in 1961.
Example sentences
  • He wrote an equation - now known as the Drake equation - to estimate how many alien races in our own galaxy might be trying to contact us.
  • The other five include the Drake equation on the likelihood of us forming radio contact with extraterrestrial life, and Shannon's equations on information transmission.
  • From an astronomical perspective, relevant factors for their existence have been identified, and the overall mathematical probability of finding them has been estimated by astronomer Frank Drake in what is known as the Drake equation.

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