Here's why:

* Earth's Rotation: Earth spins on its axis, completing one rotation approximately every 24 hours. This rotation causes the stars to appear to move across the sky in circular paths.

* Polaris' Position: Polaris is located very close to the celestial north pole, which is the point in the sky directly above Earth's North Pole. Because of this, Polaris appears almost stationary in the sky as Earth rotates.

* Perspective: From our perspective on Earth, the stars near the celestial poles seem to move less than stars farther away. This is due to the angle at which we view them.

While Polaris appears to be stationary, it does actually have a tiny, almost imperceptible movement, but its position is so close to the celestial north pole that the movement is practically invisible.