The test comes as the Trump administration is pushing for the deployment of a next-generation missile defense shield.

Many scientists say “subcritical” experiments and computer simulations make nuclear weapons testing unnecessary.

Gabbard said that Kim Jong Un is likely preparing to order North Korea's first nuclear test in over six years.

Director of National Intelligence Tulsi Gabbard told lawmakers that Pyongyang may be preparing to conduct its seventh nuclear ...

With the completion of the B61-12 program, work has now started on the B61-13, specifically designed for “certain harder and ...

North Korean leader Kim Jong-un has no intention of negotiating away his regime's nuclear and other "strategic" weapons ...

North Korea successfully test-fired a new anti-aircraft missile system, state-run media reported Friday, as Pyongyang ...

US military officials believe Russia and China are aggressively testing new offensive space capabilities, pointing to a ...

The U.S. is the biggest nuclear power in Europe, but doubts about Washington’s commitment has leaders questioning their ...

The AWE is accused of seriously understating crucial figures surrounding the nuclear test veterans scandal - restricting ...