The Tsar Bomba's explosion was unparalleled in power. With a 50 megaton capacity, this nuclear test was estimated to be 3,800 times the strength of the Hiroshima atomic bomb. And although short video ...

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.

U.S. and Iranian officials are using similar language to describe their primary objective for Saturday's high-stakes nuclear ...

In the eighty years since of the atomic bombings of Japan dozens of opportunities to halt the macabre march of nuclear ...

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

Scripps News takes you inside a California lab that is ensuring the effectiveness of the United States' nuclear weapons - without setting them off.

The operator of the crippled Fukushima Daiichi nuclear power plant has begun a second test to retrieve a small amount of nuclear fuel debris from one of the reactors.

Milestone marks critical step forward in deployment of world's first mass-produced reactor ...

The Ministry of Defence has declined to confirm how many personnel are currently assigned to the internal review of historic ...

Moving toward the goal of having an operational molten salt nuclear reactor in the next decade, Southern Company and the ...

Kim Yo Jong, the influential sister and potential successor to North Korea's Supreme Leader Kim Jong Un, has warned U.S. President Donald Trump that Pyongyang has no intention of giving up its nuclear ...

Cold hydrostatic testing has been completed at unit 3 of China’s Changjiang NPP in Hainan province. Huaneng Hainan Changjiang ...