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.
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Famous quotes containing the words dark and/or matter:
“O conspiracy,
Sham’st thou to show thy dang’rous brow by night,
When evils are most free? O then, by day
Where wilt thou find a cavern dark enough
To mask thy monstrous visage?”
—William Shakespeare (1564–1616)
“As I write, there is a craze for what is called psychoanalysis, or the cure of diseases by explaining to the patient what is the matter with him: an excellent plan if you happen to know what is the matter with him, especially when the explanation is that there is nothing the matter with him.”
—George Bernard Shaw (1856–1950)