A U.S. official focusing on arms control has provided what he called new, declassified details of a Chinese underground ...

The United States has revealed new details about a Chinese underground nuclear test that it claims happened nearly six years ...

The United States federal government is channeling billions of dollars into keeping existing nuclear plants running, restarting shuttered reactors, and clearing the regulatory path for advanced ...

A US official says a seismic station in Kazakhstan collected evidence of an alleged China nuclear test at Lop Nur in June 2020.

Assistant U.S. Secretary of State Christopher Yeo said at an event at the Hudson Institute think tank that a remote seismic station in Kazakhstan detected a 2.75-magnitude "explosion". It occurred on ...

At a event in Washington D.C., A U.S. official said a remote earthquake in 2020 was caused by a Chinese nuclear test.

The allegations were leveled by U.S. officials late last week. Arms control experts worry that norms against nuclear testing are unraveling.

A US allegation that China conducted a secret nuclear test was widely reported despite clear evidence to the contrary, highlighting how security claims are too often treated as facts before they are ...

C ould nuclear bombs be harnessed to help people? As the Cold War raged on in the 1950s, scientists building nuclear weapons began to ponder whether they could be put toward posit ...

The warning comes as Ukraine enters its fourth year of defending itself against Russia's illegal invasion.

The Rulison test — conducted at a depth of 8,425 feet — was the deepest subterranean nuclear-bomb detonation conducted in U.S. history.

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