Nearly a century ago, scientists proposed that a mysterious invisible substance they named dark matter clumped around galaxies and formed a cosmic web across the universe. What dark matter is made from, and whether it is even real, are still open questions, but according to a study, the first direct evidence of the substance may finally have been glimpsed. Scientists have searched for dark matter particles ever since, but so far ground-based detectors, space-based telescopes and vast machines such as the Large Hadron Collider near Geneva have drawn a blank. To search for potential dark matter signals, Totani analysed data from Nasa’s Fermi Gamma-ray Space Telescope, which detects the most energetic photons in the electromagnetic spectrum. The signal “closely matches the properties of gamma-ray radiation predicted to be emitted by dark matter,” Totani told the Guardian.

Source: The Guardian November 26, 2025 18:31 UTC