The Trump administration’s plan to offer plutonium from dismantled Cold War–era nuclear weapons to private energy companies ...

The Trump administration is reportedly in talks with five companies to provide old plutonium to convert into fuel for future ...

Key Takeaways Oklo shares jumped Tuesday morning following news the company is in advanced talks with the Energy Department ...

AI-enabled reactors sound like a terrible idea. But the details are what's important.

The Energy Department has selected five companies for advanced negotiations to use weapons-grade plutonium for fuel.

On a cloudy day in late March, Isaiah Taylor, the 27-year-old founder and chief executive of Valar Atomics, a Hawthorne, Calif.–based nuclear energy startup, led me into a large black tent at the Utah ...

Deep Fission, a Berkeley, California-based nuclear energy startup developing underground small modular reactors, on Wednesday ...

Companies say it’s a better way to dispose of the Cold War-era material — and fix a shortage of nuclear fuel. But the plan ...

After years in the wilderness, it’s a good time to be a nuclear startup. “For the first half a decade that I was telling people I was doing nuclear, I had to convince them, ‘Hey, here’s why nuclear is ...

Founded by Bill Gates, TerraPower is one of the nuclear industry’s leading startups. But the fiery history of its cooling technology is raising alarms. Third in an occasional series on companies ...