Chinese lunar rover Chang'e-3 is practising its second round of science exploration

The Chinese lunar rover Chang'e-3 is practising its second round of science exploration. According to State Administration of Science, Technology and Industry for National Defence, Chang'e-3 has reached out its mechanical arms, and started to exam the elementary composition of the lunar surface. The arms are able to receive orders from Earth, 380,000 kilometers away, and perform operational and obstacle avoidance moves.