The trial included first-of-its-kind thermal preconditioning of the bomb before carriage on an F-35 fighter jet.

The confusion rattled allies and arms control experts alike. Energy Secretary Chris Wright soon intervened to clarify that ...

Top energy and nuclear officials in the Trump administration are planning to meet with the White House and National Security Council in the coming days to dissuade President Donald Trump from resuming ...

Nuclear energy infrastructure, however, has slowed in recent decades. The average age of a nuclear power plant in the United ...

Energy Secretary Chris Wright says that new tests of the U.S. nuclear weapons system ordered up by President Donald Trump will not include nuclear explosions.

The Energy Department and Air Force in August successfully carried out the first tests dropping unarmed B61-12 nuclear ...

After the president called for resuming nuclear testing “immediately,” the official said the administration is planning only ...

Furloughs hit the NNSA’s Y-12 Field Office in Oak Ridge, where 70 of 78 federal employees are waiting for the government to reopen.

The federal agency responsible for overseeing and modernizing the U.S. nuclear stockpile will furlough the vast majority of its staff Monday as the government shutdown drags on, according to the ...