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:
“Alvina felt herself swept ... into a dusky region where men had dark faces and translucent yellow eyes, where all speech was foreign, and life was not her life. It was as if she had fallen from her own world on to another, darker star, where meanings were all changed.”
—D.H. (David Herbert)
“But a mother is like a broomstick or like the sun in the heavens, it does not matter which as far as one’s knowledge of her is concerned: the broomstick is there and the sun is there; and whether the child is beaten by it or warmed and enlightened by it, it accepts it as a fact in nature, and does not conceive it as having had youth, passions, and weaknesses, or as still growing, yearning, suffering, and learning.”
—George Bernard Shaw (1856–1950)