Question

Drake's Equation 1st Parameter R∗: What is the average rate of formation of suitable stars (stars/year) in our galaxy?

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Drake's Equation 2nd parameter f_p: What fraction of stars form planets?

0.865

Discussion page for the Fermi Paradox question series

Drake's Equation 4th parameter f_l: On what fraction of habitable planets does any form of life emerge?

5.76×10⁻⁴

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