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:
“On a starred night Prince Lucifer uprose,
Tired of his dark dominion, swung the fiend
Above the rolling ball in cloud part screened,”
—George Meredith (1828–1909)
“As I write, there is a craze for what is called psychoanalysis, or the cure of diseases by explaining to the patient what is the matter with him: an excellent plan if you happen to know what is the matter with him, especially when the explanation is that there is nothing the matter with him.”
—George Bernard Shaw (1856–1950)