From Space Weather...
Earth is entering a broad stream of debris from comet 109P/Swift-Tuttle, source of the annual Perseid meteor shower. Although the shower won't peak until August 12-13, when Earth hits the densest part of the stream, the first Perseids are already arriving.
New research by NASA's Meteoroid Environment Office shows that among all annual meteor showers the Perseids are the #1 source of fireballs. The first Perseid fireballs of 2013 are arriving now. Earth is entering a stream of debris from parent comet 109P/Swift-Tuttle, and meteoroids are hitting the top of the atmosphere at 135,000 mph. Petr Horálek photographed this Perseid streaking along the backbone of the Milky Way over Úpice, Czech republic, on August 3rd.
Perseids...2013
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