Summary:

- Researchers from the Institute of Astrophysics of the Canary Islands (IAC) have discovered that dark matter experiences forces beyond just gravity.
- This finding challenges the standard model of cosmology and could lead to a new understanding of the nature of dark matter, which makes up about 85% of the total matter in the universe.
- The researchers used observations of the motions of galaxies and galaxy clusters to infer the presence of these additional forces acting on dark matter, suggesting it may interact with itself or with other unknown particles in ways not previously considered.