SpaceX engineers tested Ship 39's propellant system, leading to some stunning images.

Japan has quietly crossed a threshold in naval warfare, installing a massive high-energy laser on a dedicated test ship and beginning live trials at sea. The system, rated at 100-kilowatt power, is ...

The Navy doesn’t have a clear plan for replacing the capabilities of an aging destroyer used to test the effectiveness of ship defense systems needed to protect against threats like those recently ...