From experimental rocket planes to Cold War spy jets, the fastest aircraft in history pushed far beyond what engineers once thought possible. I focus here on ten record-setters whose top speeds, ...

Seven down. Three to go. Boom Supersonic—the developer of a 64-to-80-passenger commercial airliner that flies faster than the speed of sound—last week set speed and altitude records with its XB-1 test ...

Pilots sometimes need to operate at slow speeds—during tight turns and landings, for instance—and good low-speed handling is the hallmark of a great fighter jet. People tend to associate raw speed ...

Hypersonic flight could one day make long-haul travel as quick as a short movie. Researchers are testing how turbulence behaves at extreme speeds, a critical hurdle for designing these aircraft. Their ...