The B61-13 variable yield gravity bomb is now going into full production seven months ahead of schedule, Sandia National ...

The “profound change of American geopolitics” could be the first step toward massive nuclear weapons proliferation.

US nuclear missiles could be delivered to the UK as the Mirror reveals Ministry of Defence chiefs signed off on a secret pact ...

Yet increasingly, nuclear weapons are being sought by countries ... officials also have been pushing Asian allies hard to build up their own defenses. As a result, in South Korea and even Japan ...

The two countries held their first meeting in seven years to discuss Iran’s contentious nuclear program. Here’s what could ...

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

Rivals like China and Russia can and will always build more of their own nukes in response. My grandfather J. Robert Oppenheimer shared the first principle of nuclear weapons: The only safety from ...

Under the original 2015 nuclear deal, Iran was allowed to enrich uranium up to 3.67% purity and ... that his country has the capability to build nuclear weapons, but it is not pursuing it and ...

The United States and Iran are preparing for talks on Tehran's nuclear program in Oman to avert ... of toughened sanctions on Iran and a build up of military force in the region.