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Astronomy · L3 · The Drake Equation Factor Chain

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How the Drake equation multiplies a chain of astronomical, biological, and social factors down to an estimated number of civilisations.

by @openstemUpdated Astronomy
Rate of star formation× Fraction of stars with planets× Habitable planets per star× Fraction where life develops× Fraction where life becomes intelligent× Fraction that develops detectable communication× Length of time a civilisation broadcastsN: estimated number of communicating civilisations

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