A U.S. official focusing on arms control has provided what he called new, declassified details of a Chinese underground ...

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 United States has revealed new details about a Chinese underground nuclear test that it claims happened nearly six years ago. The disclosure comes as tensions rise over global nuclear arsenals ...

VIENNA (AP) — The United States and Russia have both recently threatened to resume nuclear testing, alarming the international community and jeopardizing a global norm against such tests. Experts say ...

There has not been a major (or minor) nuclear explosion since the 1960s. This is almost entirely because ...

Was President Trump’s recent directive to resume U.S. nuclear testing — after a hiatus of 33 years — an actual policy decision? Or was it a political stunt to project toughness? His surprise ...

WEST PALM BEACH, Fla. (AP) — New tests of the U.S. nuclear weapons system ordered up by President Donald Trump will not include nuclear explosions, Energy Secretary Chris Wright said Sunday. It was ...

A senior U.S. official offered new details Tuesday night about an alleged nuclear bomb test conducted by China in June 2020. Assistant Secretary of State Christopher Yeaw spoke at a Hudson Institute ...

After a 4.3 magnitude earthquake hit Khonj, speculation of a secret Iranian nuclear test erupted. We break down the seismic signatures, enrichment levels, and expert analysis to determine if Tehran ...