China set to launch high-stakes mission to moon's 'hidden' side

China is set to launch a robotic spacecraft, Chang'e-6, in the coming days to collect soil and rocks from the moon's far side. This marks the first of three technically demanding missions to pave the way for an inaugural Chinese crewed landing and a base on the lunar south pole. Since the first Chang'e mission in 2007, China has made significant strides in lunar exploration, narrowing the technological gap with the United States and Russia.