How the Universe Works - Comets - Frozen Wanderers

Seizoen: 2 - Aflevering: 6 / 14 - Eerst uitgezonden: 15 augustus 2012 - Episode ID: 650001

We follow the odyssey of a comet as it sails through space, watching every move as it evolves from a chunk of ice and rock into an active nucleus engulfed in a gaseous haze. What we learn is a revelation; comets are even more mysterious than we imagined.