Dark Matter: The underground lab unlocking the Universe

Tucked away in the North East of England is ICL Boulby Mine, a working polyhalite and salt mine and the second deepest in Europe.

Over 1km below the surface, in a small corner of the giant mine's network of tunnels is a unique laboratory that could hold the answer to one of the biggest mysteries of the Universe - dark matter.

Video by Adam Proctor

Scritped and presented by Lee Johnson

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27 February 2023