The Universal Rotation Curve does not stop where the stars end but extends into the outermost regions of galaxies, which are dominated by dark matter. This is the finding of a study conducted by Paolo Salucci and his colleagues at SISSA, together with Esha Bhatia of the Indian Institute of Technology, published in the journal *Discover Space*.
The research reinforces one of the key models used to describe spiral galaxies and suggests that the relationship between visible matter and dark matter is far deeper than current models predict. The authors suggest that this new framework could shed fresh light on galaxy formation and offer new clues regarding the possible existence of a previously unknown dark matter particle capable of interacting with ordinary matter.