麻豆社 Four - Light and Dark, Series 1, Dark, Dark - in pictures

Light and Dark Series 1, Dark Dark - in pictures

Images of Jim Al-Khalili's time during the making of the episode.

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Urbain Le Verrier鈥檚 hand written calculations led to the discovery of the planet Neptune.

Light and Dark—Series 1, Dark

2/2 Prof Jim Al-Khalili investigates the 99 per cent of the cosmos that is hidden in the dark.

麻豆社 Four