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:
“People have passed through a very dark tunnel at the end of which there was a light of freedom. Unexpectedly they passed through the prison gates and found themselves in a square. They are now free and they don’t know where to go.”
—Václav Havel (b. 1936)
“Essay writing is perhaps ... the easiest for the author and requires little more than what is called a fluency of words and a vivacity of expression to avoid dullness; but without ... a real foundation of matter ... an essay writer is very apt, like Dogberry in Shakespeare’s Much Ado About Nothing, to think that if he had the tediousness of a king, he would bestow it all upon his readers.”
—Sarah Fielding (1710–1768)