The missing matter is baryonic, or so-called 'ordinary' matter, such as the protons and neutrons that make up all of the elements in planets, stars and our bodies. It is not the same as dark matter, which is still a mystery and is thought to make up around 85% of all matter in the universe.

https://sputniknews.com/20210918/researchers-find-part-of-universes-missing-ordinary-matter-1089177382.html

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