Dark • episode "S1E2" • Light and Dark

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Prof. Jim Al-Khalili investigates the 99 per cent of the cosmos that is hidden in the dark.

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Light and Dark • 2 episodes •

Light
59:28
Light

Professor Jim Al-Khalili tells the story of how we used light to reveal the cosmos.

Science

Dark
59:18
Dark

Prof. Jim Al-Khalili investigates the 99 per cent of the cosmos that is hidden in the dark.

Science

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