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:
“I remember, I remember
The fir trees dark and high;
I used to think their slender tops
Were close against the sky;
It was a childish ignorance,
But now ‘tis little joy
To know I’m further off from Heaven
Than when I was a boy.”
—Thomas Hood (1799–1845)
“As you grow older, you’ll see white men cheat black men every day of your life, but let me tell you something and don’t you forget it—whenever a white man does that to a black man, no matter who he is, how rich he is, or how fine a family he comes from, that white man is trash.”
—Harper Lee (b. 1926)