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 ...

Stony Brook operated under code names such as “Site Item,” and personnel often described their unit in deliberately vague terms. The secrecy was intentional. Even as B-52s roared overhead from ...

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

The expiration of the New START treaty has the US and Russia poised to increase the number of their deployed strategic ...

WASHINGTON — The global nuclear balance is entering its most dangerous phase since the Cold War, as the United States, Russia, and China modernize arsenals capable of ending civilization many times ...