Perseid meteor shower

A photographer prepares to take pictures of the annual Perseid meteor shower in the village of Crissolo, near Cuneo, in the Monviso Alps region of northern Italy, on August 13, 2015. The Perseid meteor shower occurs every year when the Earth passes through the cloud of debris left by Comet Swift-Tuttle. AFP PHOTO / MARCO BERTORELLOMARCO BERTORELLO/AFP/Getty Images.