First broadcast: on BBC One HDLatest broadcast: on BBC Two Wales HD
Richard Hammond uses a giant 3D virtual Earth, stunning CGI, the latest satellite imagery and beautiful locations around the world to show how the planet works. Show more
First broadcast: on BBC One HDLatest broadcast: on BBC Two Wales HD
What lies at the bottom of the oceans? What would happen if the planet lost its oceans? Richard Hammond is going to drain the oceans to find out. Show more
