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Lab experiments recreate miniature solar flares to probe corona heating

Nikita·October 26, 2026·2 min read

Phys.org reported on Monday that researchers have used laser-blasted plasma to recreate small flare-like events in the laboratory, offering a possible route to understanding how instabilities heat the sun's corona. The work was covered under the headline that the experiments show how such instabilities could drive coronal heating.

Several outlets described the results in similar terms. New Scientist framed the experiments as tiny "solar flares" built in the lab that may help explain the corona mystery, while ScienceAlert said scientists had simulated solar explosions and may have addressed one of the sun's longstanding puzzles. Nacionale reported that laboratory nanoflares could account for the corona's heat.

The coverage points to nanoflares — small, flare-like bursts — as the phenomenon the experiments are intended to model. According to the reports, the laboratory setup uses lasers to drive plasma into unstable states resembling those thought to occur on the sun.

The sun's corona is far hotter than the solar surface beneath it, a discrepancy that has long resisted explanation. The new experiments, as described by the outlets, suggest that instabilities in plasma could release energy in ways relevant to that puzzle, though the reports do not detail the specific measurements involved.

The accounts differ in emphasis — Phys.org stresses the plasma instabilities, while New Scientist and ScienceAlert focus on the recreated flares — but all describe laboratory work aimed at a solar physics question.

Watch for fuller publication of the experimental results and any follow-up work testing whether the lab findings scale to conditions on the sun.

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