A 3D MAGNETIC MAP OF THE LOCAL BUBBLE

Long ago, supernovae blew out a gigantic bubble, sweeping up interstellar gas into what is now a 1,000 light-year-wide shell. The Sun, purely by chance, sits near its center. A new map of the magnetic field along this shell may help astronomers understand the origin of this Local Bubble as well as the role of such structures in galaxy evolution.

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