NOVA

First Time Britain Left Europe

Clip: Season 44 Episode 18 | 3m 15s

Geologists think these iconic chalk cliffs hold an extraordinary secret.

Aired: 10/17/17

Rating: NR

Problems Playing Video? | Closed Captioning

National corporate funding for NOVA is provided by <a href="http://www.draper.com/" target=_blank">Draper</a>. Major funding for NOVA is provided by the David H. Koch Fund for Science, the <a href="http://www.cpb.org/" target="_blank">Corporation for ...