Nuclear weapons produce frighteningly massive detonations that destroy everything in their path. They've only ever been used once during wartime, and the bombs of today are even deadlier than the one ...

North Korea's state media released photos Thursday of what it said was the hull of a nuclear submarine. Its leader denounced ...

The debut followed the North’s first test of a new surface-to-air missile and the arrival of a U.S. nuclear-powered attack ...

North Korea released new images showing apparent progress on a nuclear-powered submarine as Kim Jong Un criticized South ...