Stunning supersonic snapshot

Original source

And a little something from NASA today showing schlieren photographs – a technique allowing imaging of soundwaves – capturing supersonic shockwaves emanating from NASA Boeing F-15 and F/A-18 aircraft flying at supersonic speeds. The images were gathered by a twin telescope and digital camera system on the ground at NASA’s Dryden Flight Research Center to manually test the Ground-to-Air Schlieren Photography System, or GASPS.