A small nuclear test reactor arrived in Utah aboard U.S. military aircraft. It won’t power homes, but state and federal ...

Iran’s top diplomat met with the head of the U.N. nuclear watchdog agency on Monday, ahead of a second round of ...

Oklahoma documentary "67 Bombs to Enid" shares Marshallese survivors’ stories, linking past U.S. nuclear tests to today’s ...

The United States Air Force maintains a small, tightly controlled fleet of aircraft certified to deliver nuclear weapons, and ...

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 ...

China is on course to have more than 1,000 nuclear warheads in the next few years, according to U.S. intelligence estimates.

The Rulison test — conducted at a depth of 8,425 feet — was the deepest subterranean nuclear-bomb detonation conducted in U.S. history.

A top arms diplomat at the State Department recently laid out what might come next as Washington upends decades of federal policies on nuclear proliferation.

Russia has repeatedly said that it will remain committed to the ban on nuclear tests as long as other parties comply with it, Leonid Slutsky said ...

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

The Department of Energy (DOE) has released specifications for 26 artificial intelligence (AI) challenges under its Genesis Mission that could reshape how ...

The New START treaty, versions of which have kept the world safe from nuclear catastrophe for generations, expired last Thursday. In the lead-up, the Russian president casually suggested the ...