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:
“What a wilderness walk for a man to take alone! None of your half-mile swamps, none of your mile-wide woods merely, as on the skirts of our towns, without hotels, only a dark mountain or a lake for guide-board and station, over ground much of it impassable in summer!”
—Henry David Thoreau (1817–1862)
“If human beings are immortal, so are animals. If matter has the ability to remember, it also has the ability to think.”
—Franz Grillparzer (1791–1872)