State Department alleges China conducted nuclear test in 2020, reigniting debate over U.S. testing moratorium and ...

The United States is ready to carry out low-yield nuclear tests to match alleged secret explosions by China and Russia, ...

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

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

It remains to be seen whether the three big nuclear powers are headed into a new arms race, or whether President Trump is trying to spur negotiations on a new accord now that a last Cold War treaty ...

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

Mobile reactor transported from California to Utah for testing, Trump’s nuclear modernization push ...

If nothing replaces the New START nuclear arms treaty, security analysts see a more dangerous environment with a higher risk ...

A U.S. official suggested in recent comments that Beijing conducted a test back in the summer of 2020. So why is the Trump ...

In the midst of trading promises with both allies and adversaries during his recent tour of Asia, U.S. President Donald Trump dampened the positive mood with an ominous pronouncement. “Because of ...

Warning at an appearance in Las Vegas that the world is “less safe” without a binding nuclear pact, two key House Democrats ...

Jay Cowan still worries about the Rulison blast’s proximity to the Colorado River and expresses disbelief at the 107 days that radioactive gas was burned in order to test whether the radionuclides ...