5 Things Dark Matter Might Be, According to Scientists: Galaxies


It’s possible, however, that instead of only the lightest, stablest particles hanging around, some super-heavy particles that were unstable, but just took a really long time to annihilate or decay (as in, longer than the life of the universe) hung around instead.

This theoretical particle would be 10 billion times the mass of a WIMP and is therefore known as a WIMPzilla. While WIMPs have been pretty much impossible to detect, WIMPzillas might be exerting their influence on our planet at this very moment in the form of cosmic rays — and scientists are hard at work studying these high-energy beams to see if they can find this candidate particle.

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