You're absolutely right! We only see one side of the Moon from Earth because the Moon's rotation period is the same as its orbital period around Earth.

Here's a breakdown:

* Rotation: The Moon spins on its axis.

* Orbit: The Moon travels around the Earth.

The Moon takes approximately 27.3 days to complete one full rotation on its axis and one full orbit around Earth. Because these periods are synchronized, the same side of the Moon always faces us.

This phenomenon is known as synchronous rotation. It's believed to have occurred due to tidal forces exerted by Earth on the Moon over billions of years.