The U.S. is working to catch up with Russia and China in developing hypersonic weapons that travel beyond Mach 5.

The US is deploying a shipborn hypersonic missile battery to the USS Zumwalt, a destroyer once thought a major mistake.

The U.S. Navy is making progress in deploying its first shipborne hypersonic weapon The U.S. Navy is transforming a costly flub into a potent weapon with the first shipborne hypersonic weapon ...

The U.S. Navy is transforming a costly flub into a potent weapon with the first shipborne hypersonic weapon, which is being retrofitted aboard the first of its three stealthy destroyers.