A Distant Supercluster of Galaxies Points To Self-Interacting Dark Matter

The El Gordo supercluster is unusually large given its distance. How could such a large galaxy cluster form so quickly? The answer could be that dark matter is self-interacting in an interesting two-state way.

Source: Universe Today · Original release

Turn curiosity into your first observation

An account unlocks the full calendar, your observation journal, equipment setups and gallery.