A prototype ion engine that uses lithium vapor as a propellant has aced its first tests, achieving 25 times more power than previous ion engines.

In April 1989, the Soviet nuclear-powered submarine K-278 Komsomolets caught fire in its engineering compartment during a routine patrol off Norway’s Bear Island. The blaze spread faster than the crew ...

NASA has plans for a giant leap in its method of space travel, beginning with a nuclear-powered mission to Mars that's projected to launch in 2028.

Deep Fission said on Wednesday it is targeting a valuation of about $1.66 billion in ​its U.S. initial public offering, looking to ride ‌a wave of investor demand for nuclear power as AI-fueled ...

Deep Fission is seeking an IPO that could raise $157 million, though investors may have trouble buying the nuclear startup's ...

California-based Deep Fission, which plans to place small modular reactors in boreholes a mile underground, has announced ...

Zap Energy says its ultimate goal is safe, clean energy from fusion. To help get there, it’s starting to build fission reactors. By Raymond Zhong Atomic fusion has long been seen as the ultimate ...

As if the U.S. grids weren’t stressed enough, AI data centers threaten to overwhelm them further with their massive energy demands. To address these challenges, researchers in Utah are entertaining ...

US-based nuclear technology firm Oklo and the Battelle Energy Alliance, the management and operating ...

Nobody said building a fusion power plant would be easy. Physicists and engineers have been working for decades to crack the problem. But over the last year or so, fusion startup Zap Energy took a ...

Nuclear power plants are safer than many suspect. But putting reactors in space is a concept with a checkered history. One ...

Sustainability: News about the rapidly growing climate tech sector and other areas of innovation to protect our planet. SEE MORE by Lisa Stiffler on Apr 29, 2026 at 6:31 am April 29, 2026 at 2:49 pm ...