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:
“Vader was seduced by the dark side of the Force.”
—George Lucas (b. 1944)
“Knowledge is invariably a matter of degree: you cannot put your finger upon even the simplest datum and say “this we know.””
—T.S. (Thomas Stearns)