US successfully tests Lockheed Martin hypersonic missile
The successful tests show progress amid increasing concerns the UUS is falling behind in what has become a superpower arms race.
Master Sgt. John Malloy and Staff Sgt. Jacob Puente, both from 912th Aircraft Maintenance Squadron, secure the AGM-183A Air-launched Rapid Response Weapon Instrumented Measurement Vehicle 2 (ARRW IMV-2) as it is loaded under the wing of a B-52H Stratofortress at Edwards Air Force Base, California(photo credit: US AIR FORCE/GIANCARLO CASEM/HANDOUT VIA REUTERS)Updated: