Hercules and Leo supercluster (IMAGE) Estonian Research Council Caption Each coloured circle depicts a galaxy group or cluster. The richest galaxy clusters are marked in red; these are the richest galaxy clusters in the Hercules and Leo superclusters. The side panels show the brightest galaxies of these clusters from the Sloan Digital Database. The yellow, green and blue circles represent galaxy groups from the brightest to the faintest. Credit Maret Einasto Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. Adaptations must be shared under the same terms. License CC BY-NC-SA Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.