NASA’s Fermi Finds Vast ‘Halo’ Around Nearby Pulsar

A new study of observations from NASA’s Fermi Gamma-ray Space Telescope has discovered a faint but sprawling glow around a nearby pulsar. If visible to the human eye, this gamma-ray “halo” would appear larger in the sky than the famed Big Dipper star pattern. This structure may provide the solution to a long-standing mystery about the amount of antimatter in our neighborhood.
Credit: NASA's Goddard Space Flight Center

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