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:
“A shadow
not of a bird, not of a cloud,
draws a dark stroke over
the hills, the mind.
And another, another.
Our fears keep pace with us.”
—Denise Levertov (b. 1923)
“Most people regard getting their way as a matter of simple justice.”
—Mason Cooley (b. 1927)