The California-based startup announced in October that prospective customers had signed non-binding letters of intent for 12.5 gigawatts of power involving data center developers, industrial parks, ...

Parsons, Kansas, may be the site of a California startup's first ever 1-mile-deep nuclear reactor - with support from county commissioners, both Republican Kansas U.S. senators and Democratic Gov.

What if the next nuclear plant didn’t rise above the horizon at all? A US start-up called Deep Fission is betting that the safest—and potentially cheapest—place for a reactor could be more than a mile ...

California-based Deep Fission has signed a letter of intent with an undisclosed partner to put a nuclear reactor 1 mile underground in Kansas. A company with a vision of installing “discreet, bespoke, ...

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