Taken by The Hubble Space Telescope this photo composite shows an unexplained halo surrounding this galaxy, this halo is suspected to be dark matter. The ring represents the strongest piece of evidence so far to support the existence of dark matter. The photo shows how galaxy cluster ZwCl0024+1652 distorts light from distant and surrounding galaxies. This photo was taken in 2004 by the Advanced Camera for Surveys (ACS). Thanks to the exquisite resolution astronomers have a new clue about how dark matter, galaxy clusters and gravitational lenses can be structured.
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