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Top 10 Facts: Perseid Meteor Shower By Robert Roy Britt Senior Science Writer posted: 10 August 2004 07:00 am ET
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Comet Swift-Tuttle, whose debris creates the Perseids, is the largest object known to make repeated passes near Earth. Its nucleus is about 6 miles (9.7 kilometers) across, roughly equal to the object that wiped out the dinosaurs.
Good thing it isn't going to hit us. And on that note ...
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