Dark Matter
About 90% of the mass of the Coma cluster is believed to be in the form of dark matter. However, the distribution of dark matter throughout the cluster is poorly constrained.
Read more about this topic: Coma Cluster
Famous quotes containing the words dark and/or matter:
“At last the gathered show lets down as white
As may be in dark woods, and with a song
It shall not make again all winter long
Of hissing on the yet uncovered ground,”
—Robert Frost (1874–1963)
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