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Desktop fusion device achieves 11 million-degree plasma milestone toward commercialisation

U.S. fusion startup Avalanche said it has generated plasma of about 11 million degrees Celsius in a desktop-sized prototype, reaching a temperature close to the sun’s core. The company said this clears a key technical threshold for fusion, though it does not mean net energy production. Avalanche is pursuing a small, low-cost system and said it has raised less than $50 million to reach this stage. The result has not been peer reviewed.