An asteroid measuring several feet in diameter is expected to enter the atmosphere over northern Sudan before dawn Tuesday, setting off a potentially brilliant natural fireworks display. It is unlikely any sizable fragments will survive the fiery passage through Earth's atmosphere. The event is expected to occur at 5:46 a.m. local time (10:46 p.m. EDT Monday). "We estimate objects this size enter Earth's atmosphere once every few months," said Don Yeomans of the Near-Earth Object Office at NAS (source: nasa.gov)
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