160719-F-EQ901-105
The sun sets on the horizon as Staff Sgt. Kyle Emmel, a 17th Training Group student, cycles down a road in San Angelo, Texas, July 19, 2016. When he rides, Emmel said his mind goes blank and all that exists in that moment is him, his bike and the landscape around him. (U.S. Air Force photo/Senior Airman Devin Boyer)