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Astronomy

The Influence of Stellar Winds on the Galactic Magnetic Field

Quick fact

The stellar wind from a single massive star can carry enough magnetic energy to influence the local interstellar magnetic field over a region tens of light-years across, and the cumulative effect of many such winds helps explain the observed turbulence and structure of the Milky Way’s magnetic field.

Why this is interesting

You know the Sun’s wind shapes comets’ tails—but did you know that every star’s wind might be helping sculpt the galaxy’s invisible magnetic skeleton?