A Chinese captain of a Hong Kong-registered ship alleged to have damaged undersea cables in the Baltic Sea on Wednesday pleaded not guilty to a charge of criminal damage in a Hong Kong court.

Britain is falling behind Russia in the undersea domain, leaving vital data cables and energy infrastructure exposed to ...

Lockheed Martin has unveiled an autonomous undersea drone that can hitch a ride on the surface of larger vessels to maximise ...

Offshore wind and solar farms are racing ahead, but the grids they feed still struggle with a basic problem: how to hold on ...