NASA is in the market for moon rocks.
The US space agency has launched an initiative whereby a company mining on the moon would collect lunar rocks to sell to NASA - without having to bring the resources back to Earth.
The idea is to eventually create a commercially viable operation capable of sustaining long-term lunar missions.
But there are questions about whether humanity can sensibly and fairly exploit the moon's resources.
Joanne Gabrynowicz is professor emeritus in space law at the University of Mississippi, and the former Editor-in-Chief of the Journal of Space Law.
