In astrophysics self-interacting dark matter is a hypothetical form of dark matter consisting of particles with strong self-interactions. This type of dark matter was postulated to resolve a number of conflicts between observations and simulations on the galactic scale and smaller. Self-interacting dark matter has also been postulated as an explanation for the DAMA annual modulation signal.
Read more about Self-interacting Dark Matter: Further Reading
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 to the rout that is made about people who are ruined by extravagance, it is no matter to the nation that some individuals suffer. When so much general productive exertion is the consequence of luxury, the nation does not care though there are debtors in gaol; nay, they would not care though their creditors were there too.”
—Samuel Johnson (1709–1784)