China's Chang'e 6 probe to the moon's far side has a big lunar mystery to solve
By retrieving rare volcanic samples from the lunar far side, Chang'e-6 aims to provide answers as to why volcanism was so limited on just one side of the moon.
TroibNews 
By retrieving rare volcanic samples from the lunar far side, Chang'e-6 aims to provide answers as to why volcanism was so limited on just one side of the moon.
