In a tokamak—a donut-shaped device that uses magnetic fields to confine plasma—sudden disruptions can occur. During these ...

The fusion power frontrunner said that construction on its Sparc reactor was proceeding as planned. Meanwhile, it's building a digital twin to help dial it in.

The International Thermonuclear Experimental Reactor in France is inching closer to completion with the delivery of essential magnetic components from China for its fusion reactor. The Correction Coil ...

Commonwealth Fusion Systems said on Tuesday at CES 2026 that it has installed the first magnet in its Sparc fusion reactor, marking a major construction ...

The fusion reactor’s electromagnetic “heart” is complete, bringing us one step closer to clean, infinite energy—though there's still a long road ahead. Reading time 3 minutes The most powerful pulsed ...

For a long time, the Greenwald limit was accepted as a given and incorporated into fusion reactor engineering. The new work shows that precise control over how the plasma is created and interacts with ...

Researchers have found a faster, more accurate way to design magnetic “bottles” that hold plasma for fusion power. Using symmetry theory instead of traditional, slow Newton-based calculations, they ...

But on January 1, researchers working on China’s Experimental Advanced Superconducting Tokamak (EAST) — often dubbed the ...

Nuclear fusion promises a green and infinitely renewable supply of energy—if we can harness it. Fusion happens all the time inside the sun. But to recreate the process on Earth, we must control ...

In a remarkable advancement for nuclear fusion research, scientists have achieved a significant breakthrough in operating a fusion reactor beyond a plasma density limit that has long constrained ...

Workers wear protective equipment in a cavernous hall that contains industrial equipment. The tokamak hall at Commonwealth Fusion Systems’ fusion energy facility in Devens, Massachusetts, will house ...