The planet that appears to "roll" rather than spin along its orbit is Uranus.

Here's why:

* Unusual Axial Tilt: Uranus has an axial tilt of almost 98 degrees. This means its axis of rotation is nearly parallel to its orbital plane. Imagine a spinning top lying on its side - that's similar to how Uranus rotates.

* Appearance from Earth: Due to its extreme tilt, Uranus appears to "roll" along its orbit as it circles the Sun. This is because we see the planet's poles alternating as it moves around the Sun.

It's important to note that Uranus actually does spin, but its unique tilt creates this illusion of rolling.