August 12, 2017 is the peak of the Perseid meteor shower. This meteor shower is an annual event each August as the Earth plows through the debris left by the Swift-Tuttle Comet. Usually the Earth only catches the edge of this debris, but some years the band is slightly deflected by way of the gravity of Jupiter and the Earth hits the debris more directly.
Without any meteor shower, we see 5-10 meteors per hours in a dark sky. Routinely, Perseids produces 8-100 meteors (shooting stars) per hour. But this year, some scientists believe the count could be as many as 200 per hour. For tips on when, where, and how to see it, go to space.com
This image is of a multi-colored, long, Perseid meteor striking the sky just to the left of the Milky Way. It was created in 2009 by Brocken Inaglory and is made available to the public with GNU Free Documentation License.