Chinese researchers say they've cracked the code on a hypersonic engine design originally proposed by the U.S. Air Force, successfully testing a jet-fuel-powered prototype under conditions simulating eight times the speed of sound. While not quite reaching the theoretical Mach 16 capability, their ground experiments suggest the concept could actually work—a significant leap in the global race for hypersonic tech.

Editor’s Note: This isn't just about breaking speed records—it's a potential game-changer for both military and commercial aviation. If scalable, engines like these could slash international flight times or enable next-gen weapons systems. The fact that China is advancing a U.S. concept adds an intriguing layer to the geopolitical tech rivalry, showing how scientific ideas can leap borders even when nations compete.