181031-N-YG220-001 SAN DIEGO (Oct. 18, 2018) Sea Hunter, an entirely new class of unmanned sea surface vehicle developed in partnership between the Office of Naval Research (ONR) and the Defense Advanced Research Projects Agency (DARPA), recently completed an autonomous sail from San Diego to Hawaii and back—the first ship ever to do so autonomously. Sea Hunter is part of ONR’s Medium Displacement Unmanned Surface Vehicle (MDUSV) project. (U.S. Navy photo)