

A meteor enters Earth's atmosphere during the Perseid meteor shower early on Aug. 13, 2009, in the village of Rotbuehl in northeastern Switzerland. Sebastian Derungs/AFP/Newscom/FILE
Astronomers at an observatory near the village of Avren, Bulgaria, look into the night sky for the Perseid meteor shower on Aug. 12, 2009. The annual meteor shower promises to put on a dazzling sky show. Astronomers say up to 100 meteors per hour are expected to streak across the sky during the shower's peak. Petar Petrov/AP
A view of the night sky over the Gzhel region in Russia is seen on Aug. 12, 2005. Between Aug. 12 and 13, the peak of the Perseid meteor shower is expected over the sky of the Northern Hemisphere. The Perseids come every year, beginning in late July and stretching into August. Sky watchers outdoors at the right time can see colorful fireballs, occasional outbursts, and, almost always, long hours of gracefully streaking meteors. The source of the shower is the Swift-Tuttle comet. Tiny bits of comet dust hit Earth's atmosphere traveling at 132,000 mph. At that speed, even a tiny smidgen of dust makes a vivid streak of light when it disintegrates. Maxim Marmur/AFP/Getty Images/Newscom/FILE
The Perseid meteor shower is viewed from the Laguna Mountains in San Diego, Calif., on Aug. 12, 2004. The meteor shower occurs once a year, peaking around August 11 to 13. It is caused as Earth enters a debris field left over from the Swift-Tuttle comet. Most meteors are about the size of a grain of sand that enters Earth's atmosphere where it burns up causing the spectacular light show. The comet gets its name from the constellation Perseus since the meteors usually radiate from that location in the sky. oe Klein/ZUMA Press/Newscom/FILE
A Perseid meteor streaks above the skies of Palm Beach Gardens, Fla., on Aug. 12, 2009. Doug Murray/Reuters/FILE
The Perseid meteor shower is viewed from the Laguna Mountains in San Diego, Calif., on Aug. 12, 2004. The Perseid meteor shower occurs once a year, peaking August 11 to 13. Joe Klein/ZUMA Press/Newscom/FILE
In a 75-minute time exposure from the summit of Big Mountain near Whitefish, Mont., stars swirl in the sky as a meteor from the Perseid meteor shower is seen crossing the swirl at upper left on Aug. 12, 2001. About 200 people gathered at the summit of the ski resort to watch the annual meteor shower. Robin Loznak/Daily Inter Lake/ZUMA Press/Newscom/FILE
The walls of Red Rock Canyon National Conservation Area outside Las Vegas, Nev., glow under the celestial lights as meteors from the Perseid meteor shower fly through the skies on Aug. 11, 2009. The annual show of meteors is caused from debris from the Swift-Tuttle comet. Newscom/FILE
Astronomers at an observatory near the village of Avren, Bulgaria, look into the night sky for the Perseid meteor shower, Aug. 12, 2009. Petar Petrov/AP
People look through telescopes to get a closer view of a spectacular meteor shower in the town of Ano Vrontou, Greece, on Aug. 10, 2008. The phenomenon, known as the Perseid meteor shower, occurs annually in mid-August and is caused by falling debris from the Swift-Tuttle comet. Nikolas Giakoumidis/AP
The Perseid meteor shower is seen in the sky in the early hours of Aug. 12, 2008, near Sofia, Bulgaria. Boryana Katsarova/AFP/Newscom/FILE