How does the Earth work? Richard Hammond goes to the centre of the planet to find out.
What lies at the bottom of the oceans? What would happen if the planet lost them?
Richard Hammond investigates the workings of Earth.
Planet Earth has some incredible imagery - but do you know what's going on in these pics?
The Operation Iceberg team follow the epic journey of an iceberg out at sea.
Deserts are the most haunting of all the Earth's landscapes.
How much do you know about the landmasses that make up our planet?
The seven continents of the world are made up of four continuous landmasses.
Super Volcano whether Yellowstone could turn in to a super volcano.
Will Madagascar's bizarre wildlife bamboozle you?
We went to the ends of the earth for this to test your Arctic and Antarctic knowledge.