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.
I notice there doesn't appear to be any diffraction (rainbow effect) associated with any of the lensed images. I'm not sure about why the lensed images look so ghostly blue, as if lower frequencies are cut off in lensing. I guess it's supposed to be red-shifted UV.
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