4-th episode of 54-th season "Horizon"

What "Horizon" 4-th episode about

The show reveals that far from a simple story of stable objects orbiting a star, the development of the Solar System was a potent combination of hellfire, chaos and planetary pinball.

Episode number: 4

Episode name: "Secrets of the Solar System"

Episode release date: 3 march 2015 at 21:00

Status: aired