
Dark matter, a substance constituting over 80% of the universe's matter, may have finally been detected through a unique gamma-ray signal emanating from the Milky Way. First identified by Fritz Zwicky in 1933 due to anomalous galaxy velocities in the Coma Cluster, dark matter remains elusive because it neither emits nor reflects light. In November 2025, Dr. Tomonori Totani analyzed 15 years of Fermi telescope data, isolating a gamma-ray pattern consistent with a dark matter halo. This signal, peaking at 20 giga electron volts, aligns with theoretical predictions for Weakly Interacting Massive Particle (WIMP) annihilation. While this finding represents a significant breakthrough, researchers await further verification from the Vera Rubin Observatory to confirm whether these particles truly account for the missing mass that shapes the cosmic structure.
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