Template:Drake

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The Drake equation is as follows:

  • N: The number of civilizations with which we might be able to communicate.
  • R*: The average rate of star formation in our galaxy.
  • fp: The fraction of stars which, after formation, have 1 or more planets.
  • ne: The average number of planets that can potentially develop life, per star which has 1 or more planets.
  • f: The fraction of planets that actually do develop life.
  • fi: The fraction of life-developing planets that actually do develop intelligent life.
  • fc: The fraction of civilizations that develop a technology that releases detectable signs of their existence into space.
  • L: The length of time such civilizations release detectable signals into space.