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The Origin and Evolution of Cosmic Magnetism

The giant radio galaxy Hercules A.

Figure 1. The giant radio galaxy Hercules A. Radio synchrotron jets emerging from the optical host of the galaxy mark the presence of magnetic fields roughly 1 million light-years in scale. Credit: NASA, ESA, S. Baum and C. O'Dea (RIT), R. Perley and W. Cotton (NRAO/AUI/NSF), and the Hubble Heritage Team (STScI/AURA)

By Melanie Johnston-Hollitt

Understanding the origin and evolution of magnetic fields in the universe is one of the great challenges of modern astrophysics. The unique capabilities of the SKA will provide astronomers with the best tools to explore how, when and where magnetic fields in the cosmos formed.

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