PICTURE SHOWS: Artist's impression of the X-59 Quiet SuperSonic Technology ...

PICTURE SHOWS: Archive picture of T-38 supersonic aircraft ......... STOR...

PICTURE SHOWS: One of the greatest challenges of the flight series was timi...

PICTURE SHOWS: Using the schlieren photography technique, NASA was able to ...

PICTURE SHOWS: When aircraft fly faster than the speed of sound, shockwaves...