S01 Episode 1
Planets From Hell
The discovery of hostile new worlds and the possibility of someday finding a planet similar to Earth.
49 mins · Mon, 7 Jan 2002
S01 Episode 2
Killers in Space
The thousands of asteroids and comets in the solar system are thought to have played a vital role in kickstarting life on Earth.
49 mins · Mon, 14 Jan 2002
S01 Episode 3
Final Frontier
The size and shape of the cosmos; how cosmologists are able to discover the limits and destiny of the universe.
49 mins · Mon, 21 Jan 2002
