Recent data from the Hubble Space Telescope hints that dark matter, an abundant, but ever-elusive material suspected of populating our universe, may actually be composed of what physicists called dark photons.

Although purely theoretical in nature, dark photons could account for the missing matter that contributes to an ever-expanding universe while simultaneously explaining the discrepancy between simulations of the universe and information collected by Hubble. If proven true, the new theory could finally answer a mystery that has stymied physicists and cosmologists for decades.

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