AI Space
Parker Solar Probe finds a magnetic-field reversal
Measurements show the reversal shifts to longer wavelengths farther from the Sun, near a change in plasma behavior.
Illustration of a spacecraft near the Sun observing flowing solar plasma and curved magnetic-field lines.
Photo: Kronos News
Parker Solar Probe measurements have revealed a reversal in the direction of magnetic-field rotation in solar-wind turbulence, according to an international research team. The University of Tokyo says the reversal shifts toward longer wavelengths farther from the Sun. [1]
The team reports that the reversal occurs near the transition from plasma’s large-scale, fluid-like behavior to small-scale, particle-like behavior. The study, titled “Nonlocal Evolution of Magnetic Helicity across the Magnetohydrodynamic–Kinetic Interface,” was published in The Astrophysical Journal Letters. [1]
The finding offers insight into how turbulence behaves in space plasma, but the university’s account does not establish that the result can improve space-weather forecasts. [1]
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Only the University of Tokyo source could be accessed and verified; the findings are reported with attribution, and no practical forecasting benefit is asserted.
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Kronos News Desk covers ai space and editorial analysis for Kronos News.