U.S. Air Force says it conducted successful hypersonic weapon test - Reuters.com

Air Force said on Monday it had conducted a successful test of a hypersonic weapon, which flew at five times the speed of sound.

The test was conducted on Saturday off the coast of Southern California when a B-52 bomber released an Air-launched Rapid Response Weapon (ARRW), the Air Force said in a statement.

"Following separation from the aircraft, the ARRW's booster ignited and burned for expected duration, achieving hypersonic speeds five times greater than the speed of sound," it said.