The oldest magnetar galaxy ever discovered provides clues about the history of the Milky Way

A magnetic field 16,000 light-years wide has been detected in an ancient galaxy from which the light is amplified by gravitational lens. Since it is so far away from us, we see this galaxy as it was when it existed more than 11 billion years ago. While all galaxies contain a giant magnetic field, astronomers had never detected galactic magnetism so early in the universe before.

Discovered using Atacama Large Millimeter/Submillimeter Array (ALMA) in Chile, by a multinational team of astronomers led by astrophysicist Jim Geach of the University of Hertfordshire in the UK.

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