Luna 27 mission to explore Moon's south pole

The European and Russian space agencies are to send a lander to an unexplored area at the Moon's south pole.

It will be one of a series of missions that prepares for the return of humans to the surface and a possible permanent settlement.

The BBC's Pallab Ghosh has been given exclusive details of the mission, called Luna 27, which is set for launch in five years' time.