Nuclear-powered submarines use some of the most advanced military technology in the world. These are the ones that are a cut ...

South Korea received U.S. approval to build a nuclear-powered attack submarine that can operate for months underwater, track ...

Japan's Defense Ministry said the country faces "the most severe and complex security environment" since World War II.

KITTERY, Maine — Portsmouth Naval Shipyard leaders announced the finishing touches are complete on a $158 million super flood basin, allowing submarines to dock without buoyancy assistance, comparable ...

China's been steadily upgrading its submarine fleet and weapons to detect those of the US should the two nations go to war.

US Navy submarines are key to countering China's naval expansion in the Indo-Pacific. China's military expansion includes a large navy, posing a threat to US naval dominance. US submarines, despite ...

Submarines are among the most sophisticated vehicles that humanity has ever developed. Their capability to navigate both the ocean surface and deep waters, their capacity to operate silently, and ...

Horizontal convection describes fluid motion driven by differential heating along a horizontal boundary, whereby variations in buoyancy generate circulation. Recent theoretical, computational and ...

Sweden's armed forces said Wednesday they were following a Russian submarine that entered the Baltic Sea a day earlier, amid mounting tensions in the region. "A Russian submarine entered the Baltic ...