PBS Space Time

The Cosmic Dark Ages

Season 5 Episode 22 | 12m 29s

We live in the stelliferous era. Somewhere between 10 and 1000 billion trillion stars fill the observable universe with light. But there was a time before the first star ignited. A time we call the cosmic dark ages.

Aired: 06/18/19

Rating: NR

Video has closed captioning.

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