Excess of Gamma Rays (2 of 3) (IMAGE)

DOE/SLAC National Accelerator Laboratory

Excess of Gamma Rays (2 of 3)

Caption

When astrophysicists model the Milky Way's gamma-ray sources to the best of their knowledge, they are left with an excess glow at the galactic center. Some researchers have argued that the signal might hint at hypothetical dark matter particles. However, it could also have other cosmic origins.

Credit

NASA; A. Mellinger/Central Michigan University; T. Linden/University of Chicago

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