Tidal locking in Earth-Moon system. This is why we see only one side of the Moon.

This video shows how the Moon rotates while orbiting Earth, and how tidal locking means it always shows us the same face. Due to locking, the time taken for the Moon to rotate once on its axis and to orbit Earth are both 27.32 days. This is why we see only one side of the Moon. The video also explains Moon's phases. Read more:https://ourplnt.com/why-do-we-only-see-one-side-of-the-moon/ Credit @NASAMoon https://twitter.com/NASAMoon