How the Universe Works Season 2 Episode 6 - Comets - Frozen Wanderers

Airdate: 2012-Aug-15

Episode summary:

Following the journey of a comet from its beginning as cosmic detritus floating around the outer limits of the solar system to the outgassing process as the comet approaches the sun. Watch the movement of a comet as it evolves from a chunk of ice and rock into an active nucleus engulfed in a gaseous haze.

About How the Universe Works series:

How the Universe Works is the greatest story ever told, the creation of everything us. The programme investigates how the Universe came into existe...Show more >