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:
“I turned my head and saw the wind,
Not far from where I stood,
Dragging the corn by her golden hair,
Into a dark and lonely wood.”
—William Henry Davies (1871–1940)
“No matter what everybody says, ultimately these things can harm us only by the way we react to them.”
—Molière [Jean Baptiste Poquelin] (1622–1673)