An international team of astronomers using the NASA/ESA Hubble Space Telescope has discovered a ghostly ring of dark matter formed long ago during a colossal collision between two galaxy clusters. This is the first time that dark matter has been found with a distribution that differs substantially from the distribution of ordinary matter.

Credit:

ESA/Hubble (M. Kornmesser & L. L. Christensen)
Narration:
Dr. Robert Fosbury

Design:
Martin Kornmesser

Web Technical Support:
Lars Holm Nielsen
Raquel Yumi Shida

Cinematographer:
Peter Rixner (www.perix.de)

Script:
Lars Lindberg Christensen
Ana Lopes

Director:
Lars Lindberg Christensen

Learn more at http://www.esa.int

This video has been released in the public domain by the ESA and all credit is to ESA for the production of this material.