China's Chang'e 6 is now back on terra firma with the first ever rock samples taken from the dark side of the moon. As well as Chinese technology, the mission involved cooperation with scientists from France, Sweden, Italy and the European Space Agency. So what does this mean for future lunar missions, and further international cooperation in space?To find out, in this episode of The Agenda, Juliet Mann speaks to Andrew Coates, Professor of Physics in the Department of Space and Climate Physi...