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  • Moiya McTier
    • May 2, 2019
    • 1 min read

Astronomy Fun Fact #18

All of the matter that we can see in the universe is called baryonic matter and it only makes up just 4% (!!!) of the universe. Dark matter (matter that we can't see) makes up 28% of the universe, and dark energy (truly mysterious stuff) makes up the remaining 68%.

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