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US Air Force tests hypersonic speed
The US military has achieved ground-based hypersonic speed on the Holloman High Speed Test Track (HHSTT), with the experiment aimed at better understanding the effects
US Military Successfully Tests Hypersonic Weapon
The US military has successfully tested a hypersonic weapon system, reaching Mach 5 (~6,200 km/h). Only two other countries possess such a missile. The Defense
