1. What Is Life?

8.3

. 27 January 2013. 59 min

Professor Brian Cox journeys to Southeast Asia to see how life began on Earth and how the flow of energy created and supports life.

2. Expanding Universe

8.5

. 3 February 2013. 59 min

In the second episode, Brian travels to the U.S. to showcase how the laws of science allowed senses to arise.

3. Endless Forms Most Beautiful

8.5

. 10 February 2013. 59 min

Brian travels to Africa and Madagascar to analyse why Earth is a fertile place and how it allows complex life to exist.

4. Size Matters

8

. 17 February 2013. 59 min

The fourth episode sees Brian in Australia looking at how the size of life affects each plant and animal, and how long it can survive.

5. Home

8

. 24 February 2013. 59 min

In the final episode, Cox explains what makes Earth a home for life and asks what ingredients were required for complex life to begin.