Trump’s pick to lead the U.S. nuclear weapons agency faced Senate questions over workforce cuts, morale issues and the future of nuclear weapons testing.

Scripps News takes you inside a California lab that is ensuring the effectiveness of the United States' nuclear weapons - ...

Elon Musk wasn't in the room for this week's confirmation hearing, but his presence loomed large as President Donald Trump's nominee to head the nation's nuclear weapons agency faced questions ...

Imagine the power of the bomb dropped on Hiroshima in 1945 and then multiply it by 670,000 times. Terrifying doesn't really ...

A US nuclear reactor has switched from Regular to Premium fuel with Southern Nuclear inserting four Lead Test Assemblies ...

The danger posed by nuclear weapons in the 21st century is shaping ... plea to Pakistani Prime Minister Nawaz Sharif not to test a bomb; after Sharif refused, Clinton imposed sanctions.

The Pentagon has sped up production of its latest gravity bomb in the latest sign that mankind is headed into the scariest ...

The National Nuclear Security Administration said development for a bomb 24 times more powerful than the one dropped on Hiroshima is ahead of schedule.

Tensions are mounting between Israel and Turkey, but the U.S. president thinks he can mediate.

the Iranian response to the US campaign of maximum pressure was not to offer the Americans more but instead to press ahead with enriching uranium to the point where they are now close to having enough ...