New planets are now being discovered outside our solar system on a regular basis, and these strange new worlds are forcing scientists to rewrite the history of our own solar system. Far from a simple story of stable orbits, the creation of our solar system is a tale of hellfire, chaos and planetary pinball. It's a miracle our Earth is here at all.
| Actor | Role |
|---|---|
 Ruth WilsonNarrator | Narrator |
| SScott BoltonHimself | Himself |
| MMarek KukulaHimself | Himself |