Galaxy Cluster Abell 1689
Galaxy Cluster Abell 1689

Tags
Astronomical, Dark Matter, Exotic, Galaxies, Galaxy Clusters, Hubble Telescope

Credits

Credit: NASA, ESA, J. Blakeslee (NRC Herzberg Astrophysics Program, Dominion Astrophysical Observatory), and K. Alamo-Martinez (National Autonomous University of Mexico)

Acknowledgment: H. Ford (JHU)