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:
“An American, a Negro ... two souls, two thoughts, two unreconciled strivings; two warring ideals in one dark body, whose dogged strength alone keeps it from being torn asunder.”
—W.E.B. (William Edward Burghardt)
“The more dubious and uncertain an instrument violence has become in international relations, the more it has gained in reputation and appeal in domestic affairs, specifically in the matter of revolution.”
—Hannah Arendt (1906–1975)