e Moon."The public, especially young people, are being encouraged to participate in the Chang'e-4 mission. The Chin▓a National Space Administration (CNSA) launched a contest among students across C
hina▓
in 2016, collecting ideas on the de▓sign of the payloads.The "lunar mini biosp▓here" experiment was selected from more
than 200 submissions, according to the CNSA.Tidal forces of the Earth have slowed the Moon's rotation▓ to the point where the same si
de always faces the Earth, a phenomenon called tidal locking. The ot▓her face, most of which is never visible from the Earth, is the far side of the Moon.With it
s special environment and complex geological history, th▓e far side is a hot spot for scientific and▓ space exploration. However, landing and roving there requires a relay satellite to transmit signals.It has been re