Question

Why we can never see the back side of the moon from the earth

Answer 1

Answer:

Tidal forces from Earth have slowed down the Moon's rotation to the point where the same side is always facing the Earth—a phenomenon called tidal locking. The other face, most of which is never visible from the Earth, is therefore called the "far side of the Moon".

Answer 2

Because the back side of the moon turns toward the earth during daytime.