Supercluster El Gordo Suggests Self-Interacting Dark Matter

• El Gordo, a supercluster of galaxies, is located 7 billion light-years from Earth.
• The cluster has a combined mass of over two quadrillion solar masses and is nicknamed El Gordo.
• El Gordo's size and mass suggest self-interacting dark matter as a possible explanation for its formation.
• The cluster shows two regions in the process of colliding, adding to its unusual characteristics.
• The discovery could provide insights into the nature of dark matter and galaxy formation.