The US tested a doomsday ballistic missile off the California coast Tuesday night — as war raged in the Middle East. The ...

Joint Interagency Task Force 401 said its tests are meant to alleviate worries about how the lasers are used and to ...

The U.S. Air Force has begun a new phase in testing its Collaborative Combat Aircraft (CCA), conducting tests with the ...

The Pentagon and the Federal Aviation Administration plan to jointly test a high-energy laser weapon designed to shoot down small drones at White Sands Missile Range in New Mexico. The test, announced ...

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

The ongoing conflict between the US and Iran has raised suspicions about potential nuclear tests by the United States, despite official denials. Recent unusual seismic activity, including 16 tremors n ...

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 ...

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

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

Discussing nuclear weapons earlier this month, Chinese Foreign Ministry spokesperson Mao Ning said the nation “is committed to peaceful development, follows a policy of ‘no first use’ of nuclear ...

President Donald Trump’s calls to ramp up nuclear weapons testing last week have put nuclear watchdogs and world leaders on alert while experts say the United States has little to gain. Photo by Yuri ...