The moon lander was launched at the Xichang Satellite Launch Center in southern China on December 8 on a Long March 3B rocket and entered lunar orbit four days later.
The far side of the moon faces away from Earth and it remains comparatively unknown. It has a different composition from sites on the near side where previous missions have landed.
China launched a relay satellite, Queqiao, or Magpie Bridge, between Earth and the moon. Operating about 400,000km (250,000 miles) from Earth, Queqiao will pass on signals to the lunar lander and rover of Chang'e 4.