The fastest air-breathing vehicle ever built was the NASA X-43. Only three of these aircraft were built, with one being destroyed and two operating successfully. The X-43 testbed aircraft measured 12 ...

NASA has revealed more detail about the recent first flight of its X-59 Quesst supersonic demonstrator jet, a milestone the agency describes as demonstrating its continued ability to manage ...

It's been a long time coming, but the first flight of the X-59 experimental aircraft, made by NASA and Lockheed Martin Skunk Works as a means to prove that quiet supersonic flight is possible, is more ...

For decades, flying faster than the speed of sound has meant speeding across the skies in an aircraft that creates a powerful sonic boom -- a huge noise that travels down to the ground below like a ...