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

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

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

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

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 ...

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

DARPA has marked a traditional naval milestone with the christening of USX-1 Defiant, a first-of-its-kind autonomous, ...

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

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

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

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