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:
“A shadow
not of a bird, not of a cloud,
draws a dark stroke over
the hills, the mind.
And another, another.
Our fears keep pace with us.”
—Denise Levertov (b. 1923)
“Sir Richard cried in his English pride,
‘We have fought such a fight for a day and a night
As may never be fought again!
We have won great glory, my men!
And a day less or more
At sea or ashore,
We die—does it matter when?”
—Alfred Tennyson (1809–1892)