Today at Berkeley Lab

MACHOs Are Dead, WIMPs Are a No-Show; Say Hello to SIMPs

The search for dark matter has failed to find an abundance of dark, massive stars or scads of strange new weakly interacting particles. But a new candidate — SIMPs — is slowly gaining followers. The Lab’s Hitoshi Murayama says that recent observations of a nearby galactic pile-up could be evidence for the existence of SIMPs. More>

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