In 1971, during the height of the Cold War, the United States carried out one of its most controversial underground nuclear ...

The US has accused China of conducting secret nuclear weapons tests and risking a new nuclear arms race. “Today, I can reveal that the US government is aware that China has conducted nuclear explosive ...

President Donald Trump says the U.S. plans to restart nuclear weapons testing for the first time in more than 30 years, a move experts fear could raise global tensions and disrupt the nuclear balance ...

In the five days since the last remaining nuclear treaty between the United States and Russia expired, statements by administration officials have made two things clear: Washington is actively ...

WASHINGTON — Democratic senators representing states that bore the brunt of the fallout from explosive nuclear weapons testing are seeking to pass legislation that would bar President Donald Trump ...

The State Department’s allegation that China conducted a yield-producing nuclear test in 2020 is reigniting debate in Washington over whether the United States can continue its decades-long moratorium ...

Deep Fission broke ground on the test site for a 1-mile-underground nuclear reactor in Parsons, Kansas on Dec. 9, 2025. Deep Fission says it’s committed to drilling test wells and completing a pilot ...

Last month, U.S. President Donald Trump rekindled a decades-old debate about nuclear testing. “Because of other countries testing programs,” he wrote on social media, “I have instructed the Department ...