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Dark matter: The matter we can't see - James Gillies

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 Astronomy   |   Physics   |   Science
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View full lesson: http://ed.ted.com/lessons/dark-matter-the-matter-we-can-t-see-james-gillies

The Greeks had a simple and elegant formula for the universe: just earth, fire, wind, and water. Turns out there's more to it than that -- a lot more. Visible matter (and that goes beyond the four Greek elements) comprises only 4% of the universe. CERN scientist James Gillies tells us what accounts for the remaining 96% (dark matter and dark energy) and how we might go about detecting it.

Lesson by James Gillies, animation by TED-Ed.

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