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The world around us

2022

2022: Fusion ignition

A laboratory experiment crossed an important physical threshold.

Fusion ignition.
Fusion ignition.

NIF achieved fusion ignition on 5 December 2022. Fusion energy exceeded the laser energy delivered to the target.

This was an experimental result, not a working power station: total facility energy use was higher. Repetition, efficiency and future system engineering remained challenges.

Sources

AI-generated photorealistic collage illustrating the theme of the year.

Lawrence Livermore National Laboratory — event and date

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