Antares Nuclear's advanced reactor, Mark-0, hit criticality this month at Idaho National Laboratory, meaning it reached a ...

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

The microreactor from Antares, a private nuclear technology company, had a successful nuclear fission reaction for the first ...

Nuclear energy could represent a multitrillion-dollar market opportunity. Which nuclear stock is best positioned for it?

Antares Nuclear's Mark-0 reactor has completed a zero-power fuelled criticality demonstration, becoming the first reactor to ...

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

Is nuclear power the world's best hope for slowing climate change—or a high-stakes gamble that risks radioactive disaster? What if it's both? As the world seeks cleaner energy sources, nuclear energy ...

GREIFSWALD, GERMANY - OCTOBER 29: A worker explains a photo taken about a year and a half ago that shows construction of the interior plasma chamber of the Wendelstein 7-X experimental fusion reactor ...

Chinese researchers set a new record by sustaining a nuclear fusion reaction at 100 million degrees Celsius for 1,066 seconds. China invests nearly double the U.S. in fusion research, with Energy ...