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:
“I thought I heard the dark pounding its head
On a rock, crying: Who are the dead?”
—Allen Tate (1899–1979)
“Fifty years from now, it will not matter what kind of car you drove, what kind of house you lived in, how much you had in your bank account, or what your clothes looked like, But the world may be a little better because you were important in the life of a child.”
—Anonymous. Quoted in The Winning Family, by Louise Hart, ch. 1 (1987)