A puzzling gamma-ray glow, known as the Galactic Center Excess, emanates from the Milky Way's core, sparking debates over whether self-annihilating dark matter could be its source.
The origin of the excess is still debated
Jun 21, 2026
06:02 pm
What's the storyA new study has left the door open for self-annihilating dark matter to explain the gamma-ray emissions from the center of our galaxy.
The Galactic Center Excess is a spherical glow of gamma rays that extends thousands of light-years from the core of the Milky Way.
"The origin of the Galactic Center Excess is one of the longest-running debates in astrophysics."
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