Gamma-ray evidence for dark matter weakens

Similar signals far from galactic center suggest original finding may be false alarm

GAMMA GLUT  Extra gamma rays from the center of the Milky Way, detected by the Fermi Gamma-ray Space Telescope (shown), could be a sign of dark matter. But a new study doesn’t support that idea, finding that other parts of the galaxy also exhibit excess gamma rays.

Aurore Simonnet/Sonoma State Univ./Fermi/NASA

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