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News Release Archive:

News Release 17 of 123

November 30, 2012 12:30 PM (EST)

News Release Number: STScI-2012-42

'Dark Core' May Not Be So Dark After All

All images from this news release:

Mapping the dark matter in the core of galaxy cluster Abell 520 Image Type: Astronomical/Illustration Mapping the dark matter in the core of galaxy cluster Abell 520PRC2012-42