Can hench anywhere any time
We refer to it as the dark side of the moon as the moon is tidally locked to the earth, ie the same side of the moon is always facing the earth. This means that as the earth rotates the "dark side" of the moon does face the sun almost every day.
For the moon to have a true dark side, it would need to be tidally locked to the sun.
Name a planet that does have a true dark side.
Sent from my SM-G970F using Tapatalk