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

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

Satellite images show major construction at secret nuclear weapons facilities in southwest China. The images reveal new buildings, underground bunkers, and industrial infrastructure linked to ...

The US accused China of secret nuclear tests, banned under international agreement, that were building toward tests of larger ...

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 U.S.' top arms control official confirmed a Chinese nuclear test first suspected in 2020.

President Trump’s approach to this new, unbound era is alarming in both its words and its mechanics. Rather than preserving the stability that has held for half a century, the administration is ...

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 ...

(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 ...

Add Yahoo as a preferred source to see more of our stories on Google. U.S. Secretary of Energy Chris Wright comments on the National Nuclear Security Administration furloughing 1,400 federal workers ...