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.

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

The U.S. government revealed new intelligence on Tuesday suggesting China may have conducted an ...

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

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

State Department alleges China conducted nuclear test in 2020, reigniting debate over U.S. testing moratorium and ...

The United States on Friday accused China of carrying out a secret nuclear test in 2020 as the Trump administration calls for ...

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.

Confusion and ambiguity are dangerous in nuclear brinksmanship. President Donald Trump spread both on Wednesday when he ...

(CNN) — Top energy and nuclear officials in the Trump administration are planning to meet with the White House and National Security Council in the coming days to dissuade President Donald Trump from ...

Donald Trump has trampled on another taboo, and it’s a good thing. The president said in a Truth Social post that the United States will begin “immediately” testing our “Nuclear Weapons” on “an equal ...

Iranian nuclear talks are continuing in Oman, while Russian and U.S. negotiators discuss future nuclear arms control in the United Arab Emirates, as the New START Treaty – which limited ...