The Russian Defense Ministry said on Friday that it had struck western Ukraine with a nuclear-capable intermediate-range ...

The attack was just the second time that Moscow had launched the nuclear-capable intermediate-range ballistic weapon.

With Japan preparing to restart a nuclear reactor, the world's largest, in the coastal prefecture of Niigata, a Newsweek map ...

Atomic nuclei are often described as orderly systems. Certain numbers of protons or neutrons, called magic numbers, usually produce especially stable and spherical nuclei. These numbers fill entire ...

What was Saudi Crown Prince Mohammed bin Salman looking for on his visit to Washington in return for his trillion-dollar investment pledge? There were jets, a defense agreement, and what could ...

The full-scope simulator for Phase I of the Lianjiang nuclear power plant in China's Guangdong province has passed factory acceptance testing and can now be delivered to the site for installation. The ...

The U.S.’s last big nuclear-power project came in more than $16 billion over budget and seven years behind schedule. Now, the U.S. government wants to give the AP1000 another shot. President Trump is ...

Few scenarios scare pundits and policymakers as much as the prospect of nuclear proliferation. Russia’s willingness to dangle the threat of deploying tactical nuclear weapons in its war against ...

For nearly 80 years, the specter of nuclear war has haunted humankind, shaping foreign policy, military strategy, and international relations. The principle of “mutually assured destruction” (MAD) has ...

US President Donald Trump and Russian President Vladimir Putin have spent weeks trading threats to restart nuclear tests, an escalation kicked off by Putin’s boasts about tests of the Poseidon nuclear ...

Israel’s short but destructive summer war against Iran and its brazen military strikes on Doha in September have reignited a debate across the Middle East over the value of nuclear deterrence. Gulf ...

MAJURO, MARSHALL ISLANDS — Lemeyo Abon learned about snow from the movies played on projectors by visiting American sailors. But living on Rongelap — a remote tropical atoll in the central Pacific ...