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Chinas EAST fusion reactor beats density limit, widens path to power

For decades, the donut-shaped magnetic vessels designed to hold the superhot plasma ran into a density limit beyond which the plasma could collapse. But on January 1, a team reported it had achieved stable plasmas that were up to 65% more dense. This matters for ITER, the fusion experiment in which India has invested

13 Jan 2026 6:00 am