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 linnet and the throstle, too, and after dark the long halloo
And golden-eyed tu-whit, tu-whooof owls that ogle London.”
—Alfred Noyes (1880–1958)
“Even today a crude sort of persecution is all that is required to create an honorable name for any sect, no matter how indifferent in itself.”
—Friedrich Nietzsche (1844–1900)