Astronomers find dark matter from 12 billion years ago

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Individual: Roberts Family

Astronomers find dark matter from 12 billion years ago

We know dark matter exists — a mysterious substance that is five times as prevalent in the Universe by mass as what we think of as “normal” matter, the stuff you and I and everything we see are made of. We see its effects through its gravity, even though we don’t know what it’s made of yet. Dark matter affects how galaxies rotate, and how they move in gigantic galaxy clusters.