The Presidential Daily Brief

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    NASA: No, Massive Asteroid Won't Hit Us

    You do want to miss this thing. As concerns grew this week that a kilometer-wide asteroid would smash into Earth on Saturday — at a brisk 34,000 miles per hour — NASA put those fears to rest. "There’s no hazard or danger," said one official, who said the agency's been tracking the potentially planet-decimating projectile "for years." The closest that asteroid 2002 PZ39 will come to Earth will be 3.6 million miles, or 15 times the distance between here and the moon.

    Is there room for error? While NASA's Sentry System tracks potentially dangerous asteroids, experts were caught off guard last year when a smaller asteroid flew much closer than expected.

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