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:
“The Sound of battle fell upon my ear & heart all day yesterday—even after dark the cannon’s insatiate roar continued ...”
—Elizabeth Blair Lee (1818–?)
“What does it matter how one comes by the truth so long as one pounces upon it and lives by it?”
—Henry Miller (1891–1980)