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Cosmologists study possible physical links between dark energy and dark matter

Researchers are examining whether dark energy and dark matter interact through an extra dimension, according to Wired.

The short version

  • DESI observational data from 2024 and 2025 indicated that dark energy is changing over time rather than remaining constant.[Wired]
  • Theoretical physicists have constructed models where dark energy and dark matter directly interact, potentially resolving discrepancies in cosmic expansion rates known as the Hubble tension.[Wired]
  • A concept proposed in 2022 suggests both phenomena could be tied to an extra dark dimension, though the framework remains an unconfirmed theoretical model.[Wired]

Key facts

  • The Dark Energy Spectroscopic Instrument research team reported findings in 2024 indicating dark energy's strength is not constant, a finding reinforced by a 2025 study.[Wired]
  • Models permitting interactions between dark energy and dark matter have been proposed to help resolve the Hubble tension regarding cosmic expansion rates.[Wired]
  • Theorists proposed in 2022 that dark matter and dark energy may share a common link through a dark dimension.[Wired]

What remains uncertain

  • Whether dark energy and dark matter physically interact or connect to an extra dark dimension remains an unproven theoretical hypothesis requiring further observational verification.[Wired]

Sources

Outlet counts describe coverage, not independent confirmation. Reports may share a wire service or original source.