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Magnetic fusion reactors contain super hot plasma in a donut-shaped container called a tokamak. dani3315/iStock via Getty Images

Nuclear fusion hit a milestone thanks to better reactor walls – this engineering advance is building toward reactors of the future

In January 2022, the JET fusion experiment produced more power over a longer period of time than any past attempt. Two physicists explain the engineering advancements that made the result possible.
Fusion could create more energy than any other process that could be produced on Earth. Shutterstock

Nuclear fusion: how excited should we be?

Fusion produces more energy per gram of fuel than any other process that could be achieved on Earth.

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