1. Night watch by Official U.S. Air Force on Flickr.

    A través de Flickr:
    During Red Flag 12-2, a U.S. Air Force F-16 Fighting Falcon fighter aircraft from the 416th Flight Test Squadron (FLTS) rests before the backdrop of the nightlights of downtown Las Vegas. The 416th FLTS is out of Edwards Air Force Base, Calif. (Courtesy photo by Chad Bellay)