Astronomers observe the night sky for the Perseids meteor shower at an observatory near the village of Avren, BulgariaPhotograph: Petar Petrov/APAvren, Bulgaria: The phenomenon happens each summer as the Earth's orbit takes it through debris scattered by the tail of comet Swift-TuttlePhotograph: Petar Petrov/APLos Padres National Forest, California, USPhotograph: Mario Anzuoni/Reuters
Los Padres National Forest, CaliforniaPhotograph: Mario Anzuoni/ReutersThe Milky Way is seen during the Perseids shower above Los Padres National Forest, CaliforniaPhotograph: Mario Anzuoni/ReutersRed Rock Canyon near Las Vegas, USPhotograph: David Becker/ReutersVinton, California, USPhotograph: Kevin Clifford/APMont-Tendre near Montricher, SwitzerlandPhotograph: Denis Balibouse/ReutersMont-Tendre, SwitzerlandPhotograph: Denis Balibouse/ReutersCamels during the Perseids meteor shower in Margham, United Arab EmiratesPhotograph: Ali Haider/EPAMargham, UAEPhotograph: Ali Haider/EPAPeople gather to watch the Perseids meteor shower in the desert near Amman, JordanPhotograph: Ali Jarekji/Reuters
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