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 Galactic Center Excess is one of the longest-running debates in astrophysics."

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.