A Dark Dimension Could Link Two of the Universe’s Great Unknowns

For those who see the world as a dark place, the universe seems to offer little solace. According to current estimates, approximately 70% of the stuff that makes up the cosmos consists of dark energy, an unknown force that pushes space to expand. And another 25% consists of dark matter, a mysterious material that holds galaxies together. But semantically speaking, dark energy and dark matter are…

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