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:
“Is there any place on land or sea where there is no war?... Blackout. Blackout. Blackout. Blackout. Everywhere people stumblin’ in the dark. Is there to be no more light in the world? Is there no place in this dark land where a man who’s drunk can find a decent bit of fun?”
—Dudley Nichols (1895–1960)
“I am often mad, but I would hate to be nothing but mad: and I think I would lose what little value I may have as a writer if I were to refuse, as a matter of principle, to accept the warming rays of the sun, and to report them, whenever, and if ever, they happen to strike me.”
—E.B. (Elwyn Brooks)