The NASA/ESA Hubble Space Telescope has been used to make an image of galaxy cluster MACS J1206.2-0847. The apparently distorted shapes of distant galaxies in the background is caused by an invisible substance called dark matter, whose gravity bends and distorts their light rays. MACS 1206 has been observed as part of a new survey of galaxy clusters using Hubble.
The release, images and videos are available on:
http://www.spacetelescope.org/news/heic1115/
Kind regards,
ESA/Hubble Information Centre
The ESO Education and Public Outreach Department
13 October 2011
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