Top 20 News Photos of 2018 That Will Blow Your Mind

Military-aircraft enthusiasts watch as a United States Air Force F-15 fighter jet travels at low altitude through the “Mach Loop” series of valleys near Dolgellau, Wales, on June 26, 2018.

The Mach Loop valleys are regularly used by the military for operational low-flying training, which can take place as low as 250 feet (76 meters) from the nearest terrain.