The U.S. claims that China conducted a secret nuclear test near Lop Nur in 2020, while Beijing categorically denies it.

A Trump administration official said that a remote seismic station in Kazakhstan measured an “explosion” in western China on ...

The United States has released new details it says support its allegation that China may have carried out a secret nuclear explosive test nearly six years ago, escalating a dispute that sits at the ...

A top Trump Administration official yesterday disclosed new details to support its claim that China conducted an underground ...

The US says it is ready to resume low-yield nuclear testing to match alleged Chinese and Russian explosions, raising fears of ...

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.

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

Jay Cowan still worries about the Rulison blast’s proximity to the Colorado River and expresses disbelief at the 107 days that radioactive gas was burned in order to test whether the radionuclides ...

In October 1964, the People’s Republic of China detonated its first atomic bomb under the code name Project 596 at the Lop ...

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

It remains to be seen whether the three big nuclear powers are headed into a new arms race, or whether President Trump is trying to spur negotiations on a new accord now that a last Cold War treaty ...