Editor in chief Nancy Shute traces the history of nuclear weapons, from the first sustained nuclear reaction in 1942 to the renewed interest in explosive tests today.

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

North Korean leader Kim Jong Un observed tests of newly developed reconnaissance and attack drones this week and called for ...

The Russian-held Zaporizhzhia nuclear power plant in Ukraine could come back online within months of a ceasefire, but it ...

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

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

North Korean leader Kim Jong Un expressed his unwavering support for Russia’s aggression against Ukraine during a meeting ...

SEOUL – North Korea said Friday it had test-fired a new ... but the two countries last year signed a sweeping military deal, ...

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

North Korea test-fired its latest anti-aircraft missile system in a drill watched by leader Kim Jong Un, state media reported ...