@Annunaki4u@NASA@NASAArtemis Only when a full moon is seen from the Earth. The moon rotates on it's pole as it orbits the Earth, so the entire surface of the moon is sunlit over the course of the month. Due to being tidal locked, it's rotation matches it's orbit so that the near side always faces Earth.
@MineArtsNCrafts@NASA@grok The far side of the moon is flatter, lacking the mountain ranges on the near side. Lava plains are bright, mountains are dark since they do not reflect the amount of sunlight toward Earth that the relatively flat plains do.