A new submarine cable project connecting Finland and Sweden has officially begun. This cable will run under the Baltic Sea ...

The captain of a Hong Kong-registered ship alleged to have damaged undersea cables in the Baltic Sea was assigned a lawyer in ...

The Baltic Sea is better known than the North Sea for highlighting the vulnerability of the alliance's critical undersea ...

NATO exercise shows alliance resolve as concerns grow about Russia's shadow fleet in the Baltic Sea, with incidents of severed cables raising regional tensions ...

Analysts have been tracking Russian electronic warfare from across the Gdańsk Bay, pinpointing familiar sites in Kaliningrad.

Ukraine’s Black Sea operations against Russia are shaping U.S. Navy and NATO thinking on the future of drones, mines and ...

The Baltic Sea is a sort of experimental pressure cooker for marine life, a test for how species fare — and whether they can survive at all — in conditions the world’s oceans may soon ...

Major naval drills about to start in the Baltic Sea involving some 30 ships and more than 3,000 Western service members will for the first time practice how to respond to a Russian assault in the ...

Finnish investigators probing the damage to a Baltic Sea power cable and several data cables said they found an anchor drag mark on the seabed, apparently from a Russia-linked vessel that has ...

Sweden's royal warship Vasa, the most celebrated Baltic Sea discovery, was so well preserved after being raised in 1961, 333 years after it sank, that minute details were clearly visible, ...

A megastructure found in the Baltic Sea may represent one of the oldest known hunting structures used in the Stone Age — and could change what’s known about how hunter-gatherers lived around ...

Leading the Baltic Sea seagrass initiative is Angela Stevenson, a postdoctoral researcher at GEOMAR who planted three test fields in recent years, discovering shoots were more resilient than seeds.