Key Points and Summary - NASA’s X-43A wasn’t a paper study—it was a 12-foot, hydrogen-fueled experimental jet that proved an air-breathing engine could fly at nearly ten times the speed of sound. -It ...

Hypersonic flight is no longer science fiction. In recent years, interest in aircraft capable of exceeding Mach 5 has surged, driven by strategic competition, defense challenges, and NASA’s pursuit of ...

The new Babolat Jet Mach 4 tennis shoe launches Jan. 22 with a renewed focus on on-court speed and agility that features new ...

We take a look at the ten fastest planes ever flown. Though some uncrewed aircraft (like the X-43) have flown faster, they ...