New Frontier Aerospace's 3D printed Mjölnir rocket engine successfully completed hot fire tests, creating opportunity for ...

After reaching supersonic velocity, an aircraft can reach hypersonic flight, which is defined as exceeding Mach 5 (about ...

The SR-72 “Darkstar,” the unofficial “Son of Blackbird,” is a top-secret, unmanned hypersonic aircraft in development by ...

The U.S. tests an enhanced PAC-3 MSE missile, advancing air defense against sophisticated threats like drones and cruise ...

The Pentagon's $1.3 billion plan includes the purchase of 233 PAC-3 MSE missiles to strengthen defenses against threats from ...