end 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 t▓hen launch
the Chang'e-4 lunar lander and rover ▓to the Aitken Basin of the south pole region of the Moon about half a year later.The Von K▓arman Crater in the Aitken Basin was chosen ▓as the
landing site for Chang'e-4 as the region is believed to have great scientific research potenti▓al.
As a gra
vitational equilibrium can be maintained there, it will be able to stay in stable orbit an▓d operate for a long time."We will make efforts to enable the relay sa
tellite to work as long as possible to serve oth▓er probes, including those from other countries," s▓aid Ye Peijian, a leading Chinese aerospace expert and consultant to China's lunar exploration program.The ▓Lunar Exploration and Space Program Cen▓ter of the China National Space Administr
ation (CNSA) has invited the public to write down their ▓hopes for lunar and space exploration. More than 100,000 people have taken part, according to the center.Inte▓rnational cooperationAs the far side of the Moon is shi▓elded
from electromagnetic interference from the Earth, it's an ideal place to study the space environment and solar bursts, and the probe can "listen" to the deeper reaches of the cosmos, said Liu Tongjie, deputy director of the Lunar Exploration and Space Program Center o▓f
CNSA.The Chang'e-4 probe will also carry scientific payloads developed by the Netherlands, Sweden, Germany and Saudi Arabia."The Chinese and Dutch low-frequency radio spectrometers might help us detect 21-cm hydrogen line radiation and study ▓how the earliest sta