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s special environment and complex geological history

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, the far side of the Moon is a hot sp

nding and roving there requires a relay satellite to transmit signals.It has been reported that China plans to sen▓d a



relay satellite for Chang'e-4 to the halo orbit of the ▓Earth-Moon Lagrange Point L2 in late May or early June 2018, and then launch the Chang'e-4 lunar lander and rover to the Ait▓ken Basin of the south pole region of the Moon about h


alf a year later.The Von Kar▓man Crater in the Aitken Basin was chosen as the landin▓g site for Chang'e-4 as the region is believed to h▓ave great scientific research potential. As a gravitational equilibrium can be maintained there, ▓it

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will be able to stay in stable orbit and operate for a long time."We will make efforts to enable t▓he relay satellite to work as long as possible▓ to serve other probes, including those from other countries," said Ye Peijian, a leading Ch


inese aerospa▓ce expert and consultant to China's lunar exploration ▓program.The Lunar Exploration and Space Program Center of the China National Space Administration (CNSA) has invited the public to write down their hopes for lunar and

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