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:
“Dark, dark my light, and darker my desire
My soul, like some heat-maddened summer fly,
Keeps buzzing at the sill.”
—Theodore Roethke (1908–1963)
“If what you mean by the word “matter” be only the unknown support of unknown qualities, it is no matter whether there is such a thing or no, since it no way concerns us; and I do not see the advantage there is in disputing about what we know not what, and we know not why.”
—George Berkeley (1685–1753)