A new analysis of how galaxy clusters have evolved over the 13.8 billion year history of the cosmos could help resolve a long-standing tension around the “lumpiness” of our universe’s matter content. In the future, it could also help scientists solve a host of other cosmic mysteries. The first data from the eROSITA all-sky survey … Read more
The universe could be younger than we think, based on the movements of satellite galaxies that reveal how recently they fell into a group of galaxies. According to measurements of the cosmic microwave background radiation (CMB) by the European Space Agency‘s Planck mission, the universe is about 13.8 billion years old. This calculation is based … Read more
An intergalactic ring-shaped superstructure of galaxies and galaxy clusters has been discovered – so huge it defies explanation. This is a structure that lives so deep in the universe that we see it as it was some 9.2 billion years ago. The enormous superstructure, nicknamed the ‘Great Ring’, has a diameter of 1.3 billion light-years … Read more