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 ...

Resuming full testing of nuclear weapons — as President Donald Trump called for last week — would be unnecessary, costly, undermine nonproliferation efforts, and empower the nation’s adversaries to ...

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

A ghost of the Cold War is rising between the world’s superpowers, just in time for Halloween. In the wake of Russian President Vladimir Putin bragging about his country testing both a nuclear-powered ...

President Donald Trump has called for the United States to test its nuclear weapons for the first time in three decades. But Trump’s statements about testing — in particular, whether other nations are ...

President Donald Trump's comments Thursday suggesting the United States will restart its testing of nuclear weapons upends decades of American policy in regards to the bomb, but come as Washington's ...

President Trump's comments about restarting weapons tests are not likely to lead to mushroom-cloud explosions over the New Mexico desert or seismic shaking underground in Nevada, according to the ...

Nuclear weapons tests were once a regular occurrence, but most countries haven’t tested in decades, following the adoption of the Comprehensive Nuclear-Test-Ban Treaty in 1996. Now, that moratorium ...

MAJURO, MARSHALL ISLANDS — Lemeyo Abon learned about snow from the movies played on projectors by visiting American sailors. But living on Rongelap — a remote tropical atoll in the central Pacific ...