re: Smoke 'em if you got 'em: Only blind luck keeping asteroids from hitting cities

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So, if the radius of a blast is .136mi, the percent of earth affected by asteroid impacts since 2001 is 7.6728254989371e-12 or 0.0000000000077%. Note: % chance of willing powerball 5.7142857142857e-9 or 0.0000000057%.

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