NOVA

First Time Britain Left Europe

Clip: Season 44 Episode 18 | 3m 15s | Video has closed captioning.

Geologists think these iconic chalk cliffs hold an extraordinary secret.

Aired: 10/17/17

Rating: NR

Problems Playing Video? | Closed Captioning

Major funding for NOVA is provided by the David H. Koch Fund for Science, the NOVA Science Trust, the Corporation for Public Broadcasting, and PBS viewers.

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