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:
“In spite of the six thousand manuals on child raising in the bookstores, child raising is still a dark continent and no one really knows anything. You just need a lot of love and luck—and, of course, courage.”
—Bill Cosby (20th century)
“Early education can only promise to help make the third and fourth and fifth years of life good ones. It cannot insure without fail that any tomorrow will be successful. Nothing “fixes” a child for life, no matter what happens next. But exciting, pleasing early experiences are seldom sloughed off. They go with the child, on into first grade, on into the child’s long life ahead.”
—James L. Hymes, Jr. (20th century)