[amsat-bb] Question abt the moon rover on the far side

Sorry if off-topic but I have a burning question and thought I'd ask here... So far I haven't come across any info about how the earth stations are communicating with the rover on the far side of the moon.  I always assumed that once anything went to the far side, comms was essentially down, plus the far side of the moon always remain the far side.  So, is there a "mother-ship" that is acting as a reflector or relay ?  Just curious... Thanks, Umesh k6vug