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:
“It’s the old captain’s dark fate
Who failed to find or force a strait
In its two-thousand-mile coast;
And his crew left him where he failed,
And nothing came of all he sailed.”
—Robert Frost (1874–1963)
“‘E’s invisible, that’s what’s the matter with him. If he gets the rest o’ them clothes off we’ll never catch him in a thousand years.”
—R.C. Sherriff (1896–1975)