Mars: The Next Frontier

This is the year of the Red Planet, when Mars will be at its closest to Earth. Withthree probes on their way to Mars, due to land Christmas Day onwards, the hope is we will find out if there is, or has been, life on Mars. In this special programme, Patrick Moore talks to Sir Arthur C Clarke about terraforming and manned exploration, and to Beagle 2's creator, Professor Colin Pillinger.