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

Serco announced today that the USX-1 Defiant, its groundbreaking prototype vessel for the No Manning Required Ship (NOMARS) ...

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

Defiant_, inches closer to operational status. The autonomous warship is designed for year-long, crewless sea operations.

A fully autonomous, unmanned surface vessel - built with no provision for human crew - has been officially christened at a ceremony in the US. DARPA (the US Defense Advanced Research Projects Agency ) ...

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

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