A3827: Cluster Cannibal . ... Credit Copyright: Michael J. West ( St. Mary's U. ), ESO 1-m Telescope Explanation: It was mealtime in galaxy cluster Abell 3827. The hungry cluster dominant galaxy in A 3827's center is seen being fed. ... A single massive galaxy dominates the centers of many compact clusters of galaxies . ... We are therefore seeing this cluster only as it existed 1.5 billion years ago, so that these five galaxies are probably by now all digested into the huge cluster center. ...