Image for The dark ages of the Universe

The dark ages of the Universe

Duration: 01:33

Prof Jim Al-Khalili uses photos from his own life to explain a period in the life of the Universe known as its dark ages.

Available since: Tue 19 Nov 2013

This clip is from

Light and Dark Dark

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

First broadcast: 25 Nov 2013

Image for Dark Not currently available on BBC iPlayer

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