WASHINGTON, Sept. 1 -- The U.S. Department of Defense's Defense Advanced Research Projects Agency issued the following news: DARPA today announced that a first-of-its-kind sensor system developed under the Arrays at Commercial Timescales - Integration and Validation (ACT-IV) program has transitioned to the Air Force Research Laboratory (AFRL) for continued advancement and experimentation. Northrop Grumman, the primary research team on the ACT-IV program, facilitated the transition of the advanc  more