Plot: The moon is a most familiar sight in our sky - it is the astronomer's friend and was Sir Patrick Moore's favourite object - yet fundamentally we still do not know how it was formed and why its far side looks so different. The team join astronomers on Blackheath to watch a lunar eclipse; find out how everyone got in the Moore Moon Marathon, the list of fascinating features you can see on the moon; and discuss the new missions that will explore this reassuringly familiar yet still most mysterious of cosmic satellites