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:
“We are all dead men on leave.”
—Eugene Leviné, Russian Jew, friend of Rosa Luxemburg’s lover, Jogiches. quoted in Men in Dark Times, “Rosa Luxemburg: 1871-1919,” sct. 3, Hannah Arendt (1968)
“What matter though numb nightmare ride on top
And blood and mire the sensitive body stain?
What matter? Heave no sigh, let no tear drop,
A greater, a more gracious time has gone....”
—William Butler Yeats (1865–1939)