Defiant is getting closer to embarking on a key long-endurance cruise that could have important ramifications for the U.S.

DARPA officially named its first-ever seafaring ship built to carry no humans, it will be known from now on as the USX-1 ...

The ship, named the USX-1 Defiant, is the prototype resulting from about five years of work by the Defense Advanced Research ...

DARPA's autonomous Unmanned Surface Vessel (USV), the USX-1 Defiant, took a major step toward operational status as a bottle ...

DARPA has its eyes on the skies with this program, but it is also going autonomous in the seas. Earlier this week, it ...

DARPA christened the USX-1 Defiant, a 180-foot fully autonomous medium unmanned surface vessel built for the U.S. Navy.

The Defiant will have to pass one final test that comes in the form of a long voyage out on the open seas, facing different ...

The Navy is testing uncrewed ships like the USX-1 Defiant to see how far it can push warfighting without sailors aboard.

A fully autonomous, unmanned surface vessel - built with no provision for human crew - has been officially christened at a ...

Serco Inc., a provider of professional, technology, engineering, and management services, announced the christening of the ...

Following its christening, the USX-1 Defiant soon will begin an at-sea demonstration of its reliability and endurance. The ...

The Defense Advanced Research Projects Agency (DARPA) on Monday christened its prototype for the No Manning Required Ship ...