Small, transportable and mass-produced “microreactors” are seen as part of the future of nuclear power. And it's underway in ...

The "nuclear" part is the chunk of uranium or plutonium that undergoes a nuclear chain reaction when the bomb is detonated. It's this chain reaction that makes nuclear weapons so devastatingly ...

A DOGE-driven mass firing of critical nuclear workers sparks alarm and leaves scars, as cost-cutting missteps throughout ...

December — Dr. Enrico Fermi achieves the first controlled nuclear chain reaction, with a natural uranium device moderated with graphite. Fermi conducted the process using the first demonstration ...

Learn more here. In 1942, the Manhattan Project needed to create a chain reaction—a crucial step toward proving that it would be possible to make an atomic bomb. The scientists achieved this sustained ...

Their work to achieve the first nuclear reaction in 1942 marked the start of the Atomic Age, and it would change everything—from energy to medicine to the geopolitical landscape. In the 1930s, ...

the fissile material needed to trigger a nuclear chain reaction and unleash the explosive power of a weapon. Undated photos ...

Canada plans to advance its nuclear technologies by focusing on its signature CANDU reactors and developing small modular ...

As a refresher, the water used in current commercial fission reactors acts as a moderator on the neutrons that are produced during a nuclear fission chain reaction, effectively slowing them down.

Critical mass is a physics term describing the point at which there is sufficient density to attain a sustained nuclear chain ...

Reports suggest the justices are favoring Texas, though a ruling in the state’s favor could counter its recent efforts at ...

After confirming that the reactor has reached a critical state where nuclear fuel is sustaining a fission chain reaction, the reactor will start generating electricity as early as Nov. 7.