Caption: This artistic view shows Athena and the colliding system of three supermassive back holes SDSS J084905.51+111447.2 observed by Chandra and the Sloan Digital Sky Survey.

Credits: X-ray: NASA/CXC/George Mason Univ./R. Pfeifle et al.; Optical: SDSS & NASA/STSc. Athena mission: ESA/IRAP/CNRS/UT3/CNES/Fab&Fab. Composition: ACO.