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A multiple exposure photograph taken in the early hours of Aug. 11, 2013 shows a Perseids meteor shower in the sky, near the municipality of La Hiruela, on the mountains of the Sierra Norte de Madrid, Spain.
The annual display, known as the Perseid shower because the meteors appear to radiate from the constellation Perseus in the northeastern sky, is a result of Earth's orbit passing through debris from the comet Swift-Tuttle.
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A Perseid meteor streaks across the sky past the light trail of an aircraft over the Lovell Radio Telescope at Jodrell Bank in Holmes Chapel, United Kingdom, Aug. 13, 2013.
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A long exposure image showa a Perseids meteor streaking across the night sky over a medieval church near the village of Potsurnentsi, Bulgaria, Aug. 12, 2013.
NASA/MSFC/MEO
This Perseid fireball meteor was observed in the skies over Chickamauga, Ga., Aug. 11, 2013.
The annual Perseid meteor shower peaks on Aug.11 and 12, 2013, filling the sky with streaks of light.
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Perseid meteors streak across the sky in Cathedral Gorge State Park, Nev., Aug. 12, 2013.
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A meteor is seen over a railroad crossing at Ditto Marina Parkway in Huntsville, Ala., Aug. 12, 2013.
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A Perseid meteor streaks across the sky in Cathedral Gorge State Park, Nev., Aug. 12, 2013.
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In this long exposure photo, a streak appears in the sky during the annual Perseid meteor shower above a roadside silhouette of a Spanish fighting bull, conceived decades ago in Spain as highway billboards, in Villarejo de Salvanes, Spain, Aug. 12, 2013.
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A Perseid meteor streaks across the sky in Cathedral Gorge State Park, Nev., Aug. 12, 2013.
Dani Pozo/AFP/Getty Images
A Perseids meteor shower in the sky near the municipality of La Hiruela, on the mountains of the Sierra Norte de Madrid, Spain, Aug. 11, 2013.
Christopher Furlong/Getty Images
A Perseid meteor streaks across the sky over the Lovell Radio Telescope at Jodrell Bank in Holmes Chapel, U.K., Aug. 13, 2013.
Paul White/AP
In this long exposure photo, a streak appears in the sky during the annual Perseid meteor shower above a roadside silhouette of a Spanish fighting bull, conceived decades ago in Spain as highway billboards, in Villarejo de Salvanes, Spain, Aug. 12, 2013.
Paul White/Getty Images
In this long exposure photo, a streak appears in the sky during the annual Perseid meteor shower above a roadside silhouette of a Spanish fighting bull, conceived decades ago in Spain as highway billboards, in Villarejo de Salvanes, Spain, Aug. 12, 2013.
Paul White/AP
A Perseid meteor streaks across the sky during the annual Perseid meteor shower behind a roadside silhouette of a Spanish fighting bull in Villarejo de Salvanes, Spain, Aug. 12, 2013.
Petros Giannakouris/AP
A meteor sparks while entering the earth's atmosphere behind an olive tree during the Perseids Meteor Shower, in Fanos village, central Greece, Aug. 10, 2013.
Dimitar Dilkoff/AFP/Getty Images
A long exposure image shows a Perseids meteor streaking across the night sky over a medieval church near the village of Potsurnentsi, Bulgaria, Aug. 12, 2013.
