Hourly Weather - Portimão, Portugal

This is one of the first air-to-air images of the interaction of shockwaves from two supersonic aircraft flying in formation. The images, originally monochromatic and shown here as colorized composite images, were captured during a supersonic flight series flown, in part, to better understand how shocks interact with aircraft plumes, as well as with each other. (NASA) At a Glance To capture the images, two T-38s flying faster than the speed of sound and a B-200 had to hit a...