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Investigating dark matter in the universe

Investigating dark matter in the universe

Update: 2025-09-18
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Researchers know dark matter exists in the universe, but the evidence is hard to find. University of Arizona astronomy professor Dennis Zaritsky explains how scientists are exploring the space between galaxies to resolve this decades-old mystery. Dennis Zaritsky spoke to Tim Swindle, professor emeritus of planetary science at the University of Arizona.
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Investigating dark matter in the universe

Investigating dark matter in the universe

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