UN Nuclear watchdog, the International Atomic Energy Agency (IAEA), has said that Iran holds 440.9 kg (972 pounds) of highly ...

Remarks by a top administration official appeared to be aimed at dispelling skepticism of its assertions, as President Donald Trump vows to restart U.S. tests.

US intelligence agencies believe China is developing a “new generation” of nuclear weapons — with Beijing having reportedly ...

A US official says a seismic station in Kazakhstan collected evidence of an alleged China nuclear test at Lop Nur in June ...

Iran cannot use 60% enriched uranium directly in its current form (UF₆, which is stored as a solid in cylinders but handled ...

Strange earthquakes have been recorded near one of the US’s most secretive nuclear weapon testing facilities, and scientists ...

Scientific knowledge about the damaging effects of nuclear-weapons testing helped to end such tests. Those findings haven’t ...

A DF-17 road-mobile medium-range ballistic missile is seen during a military parade in Beijing's Tiananmen Square on September 3, 2025. China may want to develop new nuclear warheads for its ...

President Donald Trump ordered the Department of War to resume testing nuclear weapons “on an equal basis” with Russia and China on Thursday, a practice halted by the U.S. in 1992. The announcement ...

From Trinity’s fallout to a New Mexico school underground, “Nuclear Family” traces how the bomb reshaped one family and a ...