Surprise gamma-ray discovery could shed light on cosmic mystery

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Surprise gamma-ray discovery could shed light on cosmic mystery



Astronomers have discovered an unexpected and unexplained feature outside our Milky Way galaxy that’s radiating high-energy light called gamma rays.

The team behind the discovery, including NASA and University of Maryland cosmologist Alexander Kashlinsky, found the gamma-ray signal while searching through 13 years of data from NASA’s Fermi Telescope

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