North Korea has made "very ​serious" advances in its abilities to turn out nuclear weapons, with the probable addition of a ...

The head of the U.N.’s nuclear watchdog says that “very detailed” measures to verify Iran’s nuclear activities must be put in ...

As Trump vows to blockade Iranian ports, the diplomats say his “mercurial” approach makes peace talks challenging.

There has been considerable debate among physicists over the last 15 years about conflicting measurements of the charge ...

Forty years ago, the catastrophic explosion at Chernobyl sent plumes of radioactive waste into the atmosphere. Now, New ...

The Los Alamos lab in Michigan will simulate nuclear weapon experiments. Here's what you need to know about them.

Strikes to Iran’s Bushehr nuclear power plant could release long-lasting radioactive cesium 137 into the Persian Gulf, ...

Two extremely precise experiments agree with a previously shocking measurement of just how big the proton is, which may help ...

Microreactors are very small nuclear reactors that are compact enough that they can be transported by truck, railway, or ...

Ampera, a Palm Beach Gardens startup, is developing shipping container-sized nuclear reactors using thorium for clean energy.

DOME is a world-class test bed designed to help private companies demonstrate and validate advanced microreactor designs.

North Korea on Thursday said its testing spree this week involved various new weapons systems, including ballistic missiles ...