Hubble finds ring of dark matter

This amazing video shows us some spectacular examples of faint background galaxies that had their light bent by the cluster?s strong gravitational field.

One of them, located about two times farther away than the yellow cluster galaxies in the foreground, has been multiple-imaged into five separate arc-shaped pieces.

Hubble?s high resolution can even show the details of this background galaxy.

Credit: ESA/Hubble (M. Kornmesser & L. L. Christensen)