Abell 1689 galaxy cluster (IMAGE) Istituto Nazionale di Astrofisica Caption The Abell 1689 galaxy cluster, which can be observed in the direction of the Virgo constellation. Credit INAF/VST. Acknowledgment: M. Spavone (INAF), R. Calvi (INAF) Usage Restrictions Credit must be given to the creator. No derivatives or adaptations of the work are permitted. License CC BY-ND 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.