Nature Outlook |
The dark universe
It’s a sobering thought: all the matter that has ever been detected accounts for a mere 4.9% of the Universe. Most of the cosmos is the dark universe, a mix of dark matter and dark energy. Both have so far proved impenetrable puzzles, but physicists young and old are intent on changing that.
For more on the dark universe from nature.com, see: nature.com/subjects/particle-astrophysics
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