PERSEID METEOR SHOWER INTENSIFIES (updated): The Perseid meteor shower is intensifying as Earth moves deeper into the debris stream of parent comet 109P/Swift-Tuttle. International observers are reporting as many as 50 Perseids per hour from dark sky sites, a rate which could double on August 12-13 when the shower peaks. The best time to look is during the dark hours between local midnight and sunrise. [photo gallery] [meteor radar]