Hunt for dark matter begins in an old gold mine below South Dakota - Business Insider

Dark matter makes up 85% of the universe's mass, but nobody knows what it is. Scientists hope this 10-ton vat of liquid xenon will catch it in action.

Deep inside an old gold mine, in a vat of liquid xenon, a new hunt has begun for dark matter the mysterious stuff that makes up about 85% of all matter in the universe. Nobody knows what exactly dar… [+5325 chars]

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