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Dark Matter Could a Have Slight Interaction With Regular Matter

Dark matter seems to be an invisible particle that only interacts with regular matter (or itself) through gravity. But in a new study, based on data gathered by Hubble, researchers think they've found evidence of interactions with regular matter beyond just gravity. They recorded the structure of a low-mass galaxy, measured the concentrations of dark matter, and then compared that to simulations where dark matter only interacts through gravity and found a discrepancy.

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