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

There’s no signpost marking Mississippi’s only nuclear test site. While the federal government monitors the underground area, ...

Consecutive earthquakes have raised questions about the possibility of Iran's nuclear program. However, the US and Israel are ...

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

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

After nuclear war was barely avoided during the Cuban missile crisis, public pressure convinced leaders to ban all above-ground tests in 1963 — a treaty that has never been violated. The test ...

The Zaporizhzhia nuclear power plant has 20 emergency diesel generators for use in case of a loss of external power, with ...

North Korea launched more cruise missile tests to demonstrate its nuclear counterattack capability ... for additional support in the Ukraine war.

But for decades during the Cold War, France also sought to bring ... the UK has publicly acknowledged two failed nuclear missile tests, one of them in the waters off Florida, when dummy missiles ...

Poland must now consider reaching “for opportunities related to nuclear weapons,” he said in a speech to the Polish Parliament. “This is a serious race: a race for security, not for war.” ...