Check out the next asteroid's close approach to Earth, the moon, and the solar system's other planets. Examine the date and hour, the distance, velocity, and magnitude, and the estimated maximum energy in kilotons that an impact could deliver. Browse the Sentry database, a highly automated collision monitoring system that continually scans the most current asteroid catalog for possibilities of future impact with Earth over the next 100 years. Calculate the mass and energy of an asteroid from the absolute magnitude and approaching speed.
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