Seasons & Episodes
The Time Travellers
Geologists, who study the Earth, seek to understand the processes that have shaped our planet throughout its history, cr
The Deep
A curious feature of our planet's surface is that it has two distinct levels: the dry land on the continents, on average
Ring of Fire
The Pacific Ocean is rimmed by a chain of active volcanoes, arranged in a series of graceful arcs and extending 30,000 k
Journey to the Centre of the Earth
What drives the tectonic plates as they glide over the Earth's surface? Searching for an answer, scientists have probed
The Roof of the World
Most of the dry land on Earth sits no more than a few hundred metres above sea level. But in some places mountain belts
The Big Freeze
In the nineteenth century geologists discovered evidence that large parts of the northern hemisphere had once been cover
The Living Earth
Over the past 4 billion years, life has evolved from simple single-celled organisms into the tremendous variety of plant
A World Apart
Is the Earth unique, and if so, why? To find an answer, scientists have had to explore the Solar System, searching for c
Popular Cast