A clumpy dark matter halo with varying densities and a very large, diffuse structure, as predicted by simulations, with the luminous part of the galaxy shown for scale. Since dark matter is everywhere, it should be in our Solar System as well. So why haven’t we seen it yet? (NASA, ESA, and T. Brown and J. Tumlinson (STScI))

Ask Ethan: If Dark Matter Is Everywhere, Why Haven’t We Detected It In Our Solar System?

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