Earth: The Power of the Planet - Rare Earth

Seizoen: 1 - Aflevering: 5 / 6 - Eerst uitgezonden: 18 december 2007 - Episode ID: 83487

Iain looks at the big picture of Earth's place in space. It's taken four and a half billions years and several great catastrophes to turn it from a barren rock to the unique planet we know today.