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

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

WASHINGTON — The United States is ready to carry out low-yield nuclear tests to match alleged secret explosions by China and ...

"The jury remains out on whether the June 2020 event was a nuclear test or not. What is certain is that we are in a time of nuclear uncertainty and it will continue for some time," Lori Dengler writes ...

Did China pull off one of the most sophisticated concealed nuclear tests in history? Or is the US building a case to restart ...

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

Seismic data points to a detonation in northwest China, U.S. says.

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

State Department official says China's alleged 2020 test was 'a singular explosion', confirms US will return to nuclear testing ...

A top arms diplomat at the State Department recently laid out what might come next as Washington upends decades of federal policies on nuclear proliferation.

The United States has accused China of secretly conducting a nuclear explosive test at the Lop Nur site in June 2020, alleging Beijing used a technique known as "decoupling" to muffle seismic signals, ...

Christopher Yeaw, assistant secretary of State for the Bureau of Arms Control and Nonproliferation, spoke to a U.N.-backed ...