Giving a whole new meaning to underground power, startup Deep Fission Nuclear has secured US$30 million in funding to install a micro-reactor in a mile-deep borehole by July 4, 2026 as part of the US ...

Turning the dream of abundant, always-available power into reality demands breakthrough technology. Enter Stellaria's Stellarium reactor.

On February 2, 2026, the U.S. Department of Energy (DOE) announced a new categorical exclusion (CATEX) under the National Environmental Policy ...

Outdone only by nuclear fusion, the process of nuclear fission releases enormous amounts of energy. The ‘spicy rocks’ that are at the core of both natural and artificial fission reactors are generally ...

California-based Deep Fission plans to install an underground reactor in Kansas. Parsons, Kansas, may be the site of a California startup’s first ever 1-mile-deep nuclear reactor — with support from ...

A company with a vision of installing “discreet, bespoke,” small, nuclear reactors 1 mile underground for data centers and other electricity-hungry industries plans to put its first reactors in Kansas ...

Back in the 1950s, the U.S. started detonating nuclear bombs underground to limit the fallout, both radioactive and sociopolitical, unleashed by aboveground testing. Hundreds of feet of rock formed a ...

Deep Fission’s underground design Deep Fission says its underground design could be scaled up to provide a lot of energy with little space. It says, for example, that it could nestle 100 nuclear ...

California-based Deep Fission says it will install an underground reactor in Kansas. Deep Fission says it plans to install a nuclear reactor underground at an industrial park in southeast Kansas.

The Department of Energy has announced a "categorical exclusion for authorisation, siting, construction, operation, ...