SCIENCE

‘Heavy’ dark matter would rip our understanding of the universe apart, new research suggests


Dark matter can’t be too heavy or it might break our best model of the universe, new research suggests.

We have an abundance of evidence that something fishy is happening in the universe. Stars orbit within galaxies far too quickly. Galaxies move around inside clusters much too fast. Structures grow and evolve too rapidly. If we count only the matter we can see, there simply isn’t enough gravity to explain all of these behaviors.


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