A Lockheed Martin executive who formerly served as a commander of Naval Surface Forces said one of the speed bumps in Navy laser weapons ...

The idea of traveling through interstellar space using spacecraft propelled by ultrathin sails may sound like the stuff of sci-fi novels. But in fact, a program started in 2016 by Stephen Hawking and ...

A jet with 60 passengers and four crew members collided with an Army helicopter while approaching Ronald Reagan National ...

Described as “the world’s largest cargo ship with sails,” Anemos has opened its cabins to passengers wanting a low-carbon ...