Ancient Earth: Frozen -
nova

700 million years ago, Earth was a giant snowball cloaked in ice from pole to pole. How did life manage to hold on through this deadly deep freeze, find creative ways to bounce back, and thrive in the dramatically different world that emerged?

Duration: 56 minutes and 46 seconds

Episode Number: 5012

No future air times were found for this episode.

About Nova:

PBS' premier science series helps viewers of all ages explore the science behind the headlines.

Along the way, NOVA programs demystify science and technology and highlight the people involved in scientific pursuits.

Watch Nova - Clips, Episodes & Previews

Ancient Earth: Frozen

Robotic Cars

Detecting Earthquakes

Change Blindness

Human Hibernation

Profile: Jason Leigh

Future Broadcast times for "Nova": (show all)

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Sun, Jan 18	12:00 A.M.	What Are UFOs? NHPBS (11.1)
Sun, Jan 18	4:00 A.M.	What Are UFOs? NH Explore (11.2)
Sun, Jan 18	7:00 A.M.	What Are UFOs? NHPBS (11.1)
Sun, Jan 18	8:00 P.M.	What Are UFOs? NH Explore (11.2)
Sun, Jan 18	10:00 P.M.	NOVA Universe Revealed: Milky Way NH Explore (11.2)
Mon, Jan 19	12:00 A.M.	What Are UFOs? NH Explore (11.2)
Mon, Jan 19	2:00 A.M.	NOVA Universe Revealed: Milky Way NH Explore (11.2)
Tue, Jan 20	7:00 P.M.	What Are UFOs? NH World (11.3)
Wed, Jan 21	12:00 A.M.	What Are UFOs? NH World (11.3)
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Fri, Jan 23	3:00 P.M.	Asteroids: Spark of Life? NHPBS (11.1)