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KSTAR Plasma Breakthrough
June 6 , 2026
15 hrs 0 min
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- South Korea’s Korea Superconducting Tokamak Advanced Research (KSTAR) sustained plasma in high-confinement mode for 102 seconds, achieving a major milestone in fusion research.
- KSTAR is a superconducting tokamak operated by the Korea Institute of Fusion Energy (KFE) in Daejeon, South Korea; a tokamak uses magnetic fields to confine plasma for nuclear fusion.
- It maintained plasma at 100 million degrees Celsius for 48 seconds, surpassing its previous record of 30 seconds set in 2021.
- The device was upgraded with tungsten divertors, which remove heat, impurities, and exhaust particles from plasma and can withstand extremely high temperatures.
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