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)
“Words, words, mere words, no matter from the heart.”
—William Shakespeare (1564–1616)