Milky Way’s halo is filled with magnetic donuts

Magnetic fields seen in the halo of the Milky Way
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The outer halo of the Milky Way is filled with magnetic fields that take the shape of vast donuts with diameters ranging from 12,000 to 100,000 light-years, with the heart of our galaxy at their center. 


These donut or “toroid” shaped magnetic fields of the Milky Way are responsible for constraining the physical processes surrounding gas and dust that exist between stars, known as the interstellar medium, and also govern the propagation of charged particles called cosmic rays that travel through the universe at near-light speeds. 

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