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Big Questions

The Nature of Dark Matter

One candidate for exotic dark matter is a set of particles called WIMPs (Weakly Interacting Massive Particles). However, WIMPs haven't been directly observed yet, though they are predicted by superstring theory. One such particle, the neutralino, is a very good candidate for cold dark matter because it is light and electrically neutral.


A service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA/GSFC

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