Russia "will not hesitate" to resume nuclear weapons testing if similar steps are taken by the United States, according to ...

The former president said Israel should "hit the nuclear first" in its response to an Iranian missile attack earlier in ...

South Korean President Yoon Suk Yeol says North Korea’s recent disclosure of a nuclear facility was likely an attempt to grab ...

Tech giants are increasingly eyeing nuclear reactors to power their energy-hungry data centers. Amazon and Microsoft each ...

NASA plans to send crewed missions to Mars over the next decade—but the 140 million-mile (225 million-kilometer) journey to ...

A plan to place American-made reactors on a picturesque coastline has broad support in Poland — and in Washington — but the ...

Voters in Kazakhstan will decide on Sunday whether to allow construction of a nuclear power plant amid worries over the ...

Analysts and policy officials say concerns about nuclear tensions are growing in the Middle East after Iran launched a ...

The Supreme Court's new term begins Monday with a handful of important cases set to be heard and the possibility that the ...

The Supreme Court has agreed to step into a fight over plans to store nuclear waste at sites in rural Texas and New Mexico.

North Korean leader Kim Jong Un threatened to use nuclear weapons to destroy South Korea if attacked, state media reported ...

The U.S. nuclear power regulator has not acted on recommendations to address radiological security risks to the economy and ...