Dark matter
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Science
Astronomers Spot Galaxies Moving in Sync Across a 50-Million-Light-Year Stretch
Astronomers have identified a rare 50-million-light-year cosmic filament in which 14 galaxies spin together. An illustration showing the cosmic web…
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Science
New Gravitational-Wave Signal May Reveal Primordial Black Holes Born After the Big Bang
A November 2025 LIGO–Virgo–KAGRA signal hints at ultra-light primordial black holes—hypothetical relics of the early universe. If confirmed, it would…
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Science
Fermi Telescope Detects Gamma-Ray Halo That Could Be First Direct Dark Matter Signal
NASA's Fermi telescope has found a gamma-ray halo at the Milky Way's centre matching predictions for dark-matter annihilation. Intense gamma…
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Science
Dark Matter May Have Been Seen for the First Time in NASA Gamma-Ray Data
NASA's Fermi telescope has detected a 20-GeV gamma-ray halo around the Milky Way's center that may match dark-matter annihilation. Fermi…