Using the NASA/ESA Hubble Space Telescope, astronomers have discovered that the brightest galaxies within galaxy clusters “wobble” relative to the cluster’s centre of mass. This unexpected result is inconsistent with predictions made by the current standard model of dark matter. With further analysis it may provide insights into the nature of dark matter, perhaps even indicating that new physics is at work.
The release, images and videos are available on:
http://www.spacetelescope.org/news/heic1718/
Kind regards,
ESA/Hubble Information Centre
The ESO Education and Public Outreach Department
26 October 2017
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