Though the country’s nuclear arsenal has undergone no explosive testing for decades, federal experts say it can reliably obliterate targets halfway around the globe.

OpenAI’s ChatGPT has guardrails that are supposed to stop users from generating information that could be used for catastrophic purposes, like making a biological or nuclear weapon. But those guardrails aren’t perfect. Some models ChatGPT uses can be ...

President of Iran Masoud Pezeshkian addresses the United Nations (UN) General Assembly during the 80th session of the annual event on September 24, 2025, in New York City [Spencer Platt/ Getty Images via AFP] Iranian President Masoud Pezeshkian has told ...

But President Donald Trump ’s back-to-back announcements about nuclear testing and nuclear submarines on Oct. 29 during his trip to South Korea could turn the nuclear weapons world upside down.

WASHINGTON − The agency responsible for building, maintaining, and storing America's nuclear weapons faces an internal review of its costly effort to reestablish mass production of nuclear warhead cores. The Department of Energy's No. 2 official, James ...

Iran president speaking at U.N. General Assembly Gaps remain between Iran and E3 as deadline looms European powers offering delay if Iran makes concessions UNITED NATIONS, Sept 24 (Reuters) - Tehran and Washington signalled a possible softening in nuclear ...