Fusion Startup Builds Reactor With Magnetic Mirrors

spectrum.ieee.org · 2026-09-28 · by Long Nguyen ·generic
Terra Fusion’s magnetic mirror fusion reactor aims for breakeven energy production with secondhand parts and a shoestring budget.

Fusion Startup Builds Reactor With Magnetic Mirrors

EnergyNews

Fusion Startup Builds Reactor With Magnetic Mirrors

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Old tech gets revived with salvaged parts and supersonic speeds

Mark Ellis Harris

23 Sep 2026

7 min read

Mark Ellis Harris is a contributing editor for IEEE Spectrum and an investigative science and technology reporter.

A series of horizontal connected cylindrical metal chambers in an industrial room.

The CMFX fusion experiment uses superconducting magnets upcycled from medical MRI scanners.

Carlos A. Romero-Talamás

spectrum.ieee.org · 1 images · 108 links

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