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

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

Remarks by a top administration official appeared to be aimed at dispelling skepticism of its assertions, as President Donald ...

CHINA has been accused of a massive nuclear expansion as well as carrying out secret tests, as the United States bids to ...

GENEVA (AP) — A U.S. official focusing on arms control on Monday provided what he called new, declassified details of a ...

This area, known as Lop Nur, or Lop Lake, is often likened by defence experts to Area 51, the fabled compound where the US tests its most classified and cutting-edge aircraft. Isolated and tightly ...

US intelligence agencies believe that China is developing a new generation of nuclear weapons and has conducted at least one covert explosive test in recent years as part of a broader push to ...

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

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 ...

The Russian parliament urges international bodies and lawmakers to review alleged plans to supply nuclear explosive devices ...

Scientific knowledge about the damaging effects of nuclear-weapons testing helped to end such tests. Those findings haven’t changed.