Antares Nuclear's Mark-0 microreactor achieves criticality at Idaho National Laboratory, the first advanced reactor to do so ...

Antares Nuclear’s microreactor at Idaho National Laboratory reached criticality, marking the first time a private company has ...

The executive order directed the Department of Energy to have three different reactor designs reach criticality in a bit over ...

Nuclear energy in the West took another step forward as the first privately developed, non-light-water reactor to go critical ...

In a major achievement, a new small-sized nuclear reactor set up by a private company, backed by the US government, has ...

The US Department of Energy said the first small modular nuclear reactor that is part of its Pilot Reactor Program has ...

The first privately developed U.S. nuclear reactor in over 40 years achieves criticality, marking a historic milestone for ...

Nuclear fallout events, whether triggered deliberately or accidentally, are something we hope will never happen. But if they ...

The first small modular nuclear reactor in the Trump administration’s pilot program to develop advanced nuclear energy has hit a crucial milestone toward deploying more nuclear power across the ...

A committee vote in Washington last week quietly moved the United States closer to deploying nuclear reactors in the Western ...

By recreating a nuclear fireball, scientists uncovered unexpected chemistry that could change how radioactive fallout is understood.

The Energy Department says a small nuclear reactor under development at a national lab has reached a crucial milestone that ...