Two of the Universe's Great Mysteries May Have Their Own Dimension

The original version ofthis storyappeared inQuanta Magazine.

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

But semantically speaking, dark energy and dark matter are not so much “dark” as they are invisible. They do not emit, reflect, nor absorb light, and they have so far proven impossible to observe directly.

Generally, dark energy and dark matter are regarded as separate entities, their elusiveness their primary link. But recent astronomical observations have spurred scientists to look further into a less popular idea—that the two are in fact physically intertwined.

In 2024, the research team...

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