Oh wow. This awesome image by Matthew Short for Lockheed Martin's Code One Magazine—spotted by David Cenciotti—is now my new phone background. Here's the full photo:
Lt. Col. Brent Reinhardt completes a 360-degree roll in F-35A AF-1 with a full weapon load during a test flight from Edwards AFB, California, on 10 January 2014. The photo is a composite of seventeen images taken during the 360-degree roll.