Ge Ping, a key official at the China National Space Administration, has the details about the Chang-e-6 mission.

GE PING, Deputy Director, Lunar Exploration and Space Engineering Center, China National Space Administration "The main task for the Chang'e 6 mission is to return samples from the far side of the moon. The pre-selected landing area is within the Aitken Basin in the South Pole, which is generally older than the near side of the moon.

The Aitken Basin is one of the three major terrains on the moon, and has significant scientific value. Finding and collecting samples from different regions and ages of the moon is crucial for our understanding of it.

To retrieve samples from the far side of the moon, there are some key points to consider. First, the Queqiao 2 relay satellite must enable communication between the probe on the moon's far side and the Earth. The telemetry and communication requirements must be met. Second, we need to master the design and control technology for the lunar retrograde orbit. Third, we need to ace the intelligent sampling and ascent technology on the far side of the moon.

When the sample-return mission is accomplished, there will be systematic, long-term laboratory research on the sample, including analysis of the structure, physical properties, and composition of the lunar soil. These would further studies of the moon's origin and its evolutionary history.

The Chang'e-6 mission also integrates international cooperation. The probe carries four international payloads and satellites, including a RadoN detector from France, a lunar surface negative ion analyzer from the European Space Agency, a laser angle reflector from Italy, and a cube satellite from Pakistan."