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   What is Drake equation?

   • They write new content and verify and edit content received from contributors. Drake equation, equation that purports to yield the number N of technically advanced civilizations in the Milky Way Galaxy as a function of other astronomical, biological, and psychological factors. (Read Carl Sagan’s Britannica entry on extraterrestrial life.)

   Drake equation | Searching for ET, SETI, Habitable Planets

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   Is the Drake equation speculative?

   • Some estimate place the number of communicating civilization much lower than Drake’s original estimate. Some calculations predict we are alone. Critics of the Drake Equation argue that the high levels of uncertainty in its variables render the equation speculative at best and misleading at worst.

   Drake Equation - Odds of Finding Intelligent Extraterrestrials

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   What is criticism about the Drake equation?

   • Criticism related to the Drake equation focuses not on the equation itself, but on the fact that the estimated values for several of its factors are highly conjectural, the combined multiplicative effect being that the uncertainty associated with any derived value is so large that the equation cannot be used to draw firm conclusions.

   Drake equation - Wikipedia

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   How many classes are there in the Drake equation?

   • In terms of the Drake Equation, the explanations can be divided into three classes: Few intelligent civilizations ever arise. This is an argument that at least one of the first few terms, R∗ · fp · ne · fl · fi, has a low value.

   Drake equation - Wikipedia

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2. en.wikipedia.org › wiki › Drake_equationDrake equation - Wikipedia

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   The Drake equation is a probabilistic argument used to estimate the number of active, communicative extraterrestrial civilizations in the Milky Way Galaxy. [1] [2] [3] The equation was formulated in 1961 by Frank Drake , not for purposes of quantifying the number of civilizations, but as a way to stimulate scientific dialogue at the first ...

3. science.nasa.gov › universe › exoplanetsAre We Alone in the Universe? Revisiting the Drake Equation

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   May 19, 2016 · The Drake equation, a mathematical formula for the probability of finding life or advanced civilizations in the universe. University of Rochester. In 1961, astrophysicist Frank Drake developed an equation to estimate the number of advanced civilizations likely to exist in the Milky Way galaxy.

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5. www.britannica.com › science › Drake-equationDrake equation | Searching for ET, SETI, Habitable Planets

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   May 17, 2024 · Drake equation, equation that purports to yield the number N of technically advanced civilizations in the Milky Way Galaxy as a function of other astronomical, biological, and psychological factors.

   • Author: The Editors of Encyclopaedia Britannica

6. www.seti.org › drake-equationDrake Equation - SETI Institute

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   Nov 19, 2022 · The Drake Equation, as it has become known, was first presented by Drake in 1961 and identifies specific factors thought to play a role in the development of such civilizations. Although there is no unique solution to this equation, it is a generally accepted tool used by the scientific community to examine these factors.

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7. www.space.com › 25219-drake-equationDrake Equation: Estimating the Odds of Finding E.T. | Space

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   Oct 27, 2020 · The Drake Equation is used to estimate the number of communicating civilizations in our galaxy, or more simply put, the odds of finding intelligent life in the Milky Way.

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9. sciencenotes.org › drake-equation-odds-of-findingDrake Equation - Odds of Finding Intelligent Extraterrestrials

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   May 20, 2023 · The Drake Equation is a formula for estimating the number of extraterrestrial civilization in the Milky Way galaxy capable of communicating with humans. It takes its name from American astronomer and astrophysicist Frank Drake, who proposed the equation in 1961.

10. seti.berkeley.edu › drakeThe Drake Equation: - University of California, Berkeley

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    The Drake Equation: N: The number of civilisations in our galaxy with which communication might be possible. R *: The average rate of star formation in our galaxy. f p: The fraction of stars which have planets. n e: The average number of potentially life-supporting planets per star which has planets.