For a long time, the operational autonomy of underwater systems has been constrained by the inability to ensure persistent ...

As the U.S. becomes more and more dependent on satellites for communications, reconnaissance and defense, and the cost of sending humans to service them remains high, the Air Force and Darpa are ...

Dock Street Dam, blamed for numerous drowning deaths over the years, was originally built to help improve Harrisburg residents' lives. Before the city's water and sewer treatment plants were built, ...