02:15 — How are mountains formed? Find out more about volcanism, erosion and colliding continents.
02:59 — Broken pieces of asteroids called meteorites contain valuable information about our solar system and planet.
Cast & Details See all »
- Premiered: February 10, 2009
- Rating: TV-PG
- Premise: A series examining geological features and phenomena, and the processes that formed their creation. (more)