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:
“who should moor at his edge
And fare on afoot would find gates of no gardens,
But the hill of dark underfoot diving,
Closing overhead, the cold deep, and drowning.
He is called Leviathan, and named for rolling,”
—William Stanley Merwin (b. 1927)
“A matter that becomes clear ceases to concern us.—What was that god thinking who counseled, “Know thyself!” Did he perhaps mean, “Cease to concern yourself! Become objective!”—And Socrates?—And “scientific men”?”
—Friedrich Nietzsche (1844–1900)