A new program at the Department of Energy is pushing the development of nearly a dozen new reactor designs at breakneck speed ...

The US is not planning to conduct nuclear explosions, Energy Secretary Chris Wright has said, calming global concerns after President Donald Trump called on the military to resume weapons testing.

The nuclear weapons testing ordered by U.S. President Donald Trump will not involve nuclear explosions at this time, Energy Secretary Chris Wright said on Sunday. "I think the tests we're talking ...

WEST PALM BEACH, Fla. (AP) — New tests of the U.S. nuclear weapons system ordered up by President Donald Trump will not include nuclear explosions, Energy Secretary Chris Wright said Sunday. It was ...

On Nov. 13, 1972, Terry Christensen was working in his office at Dixon Inc. on Orchard Mesa when he, like others, “felt the tremor.” He added. “We went out and saw the smoke. We saw a mushroom cloud, ...