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:
“In business be as able as you can, but do not be cunning; cunning is the dark sanctuary of incapacity.”
—Philip Dormer Stanhope, 4th Earl Chesterfield (1694–1773)
“It is not much matter which we say, but mind, we must all say the same.”
—William Lamb Melbourne, 2nd Viscount (1779–1848)