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:
“There dwell the children of the dark Night, the dread gods Sleep and Death.”
—Hesiod (c. 8th century B.C.)
“Live all you can; it’s a mistake not to. It doesn’t so much matter what you do in particular, so long as you have your life. If you haven’t had that what have you had?”
—Henry James (1843–1916)