Commonwealth Fusion Systems (CFS) is developing a tokamak device called SPARC. The company aims to demonstrate the critical fusion energy milestone of producing more output power than input power for ...

Left: geometry of the SPARC tokamak showing the pump volume and the “louver” actuator that restricts gas flow between the plasma and pumping chambers. Right: neutral gas pressure increases strongly ...

An MIT spinoff partly funded by Bill Gates signed a new agreement last month to continue its nuclear fusion research for at least the next five years in a bid to make commercial nuclear fusion a ...

News media, the Biden administration, and scientists are pumping it up for what the outcome means for fusion power (monumental) and skeptics are pumping the brakes (still decades away). Chris Kelsall, ...

Scientists in the US have introduced a novel artificial intelligence (AI) approach that can protect fusion reactors from the extreme heat generated by plasma. The new method, which is called HEAT-ML, ...

Massachusetts-based Commonwealth Fusion Systems, the world's largest private fusion company, has achieved a key milestone in its journey to producing energy for the grid. Earlier this week, the ...

Stephen Shankland worked at CNET from 1998 to 2024 and wrote about processors, digital photography, AI, quantum computing, computer science, materials science, supercomputers, drones, browsers, 3D ...

Commonwealth has made measurable progress toward its goal of building a practical fusion reactor that generates carbon-free electricity. Explore the 2023 list of 15 Climate Tech Companies to Watch.

As the race towards the first commercially viable nuclear fusion reactor heats up, the UK-based Tokamak Energy has published a paper on its recent achievements with its ST40 spherical tokamak. Most ...

On January 6, 2026, Commonwealth Fusion Systems (CFS), a nuclear fusion startup, announced that it will partner with NVIDIA and Siemens to build a digital twin that will use AI systems to accelerate ...

An artist’s interpretation of the inside of a fusion vessel, where some of the inner surfaces are directly exposed to the plasma. Some regions lie in the “magnetic shadow” of other components and are ...

Over the last three years, electricity generation from fusion has moved from the realm of science fiction to the brink of serious development. A lot has happened, but challenges remain before fusion ...