* Most planets revolve around the Sun in the same direction: This is called prograde motion, and it's the direction of the Sun's rotation. This includes Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
* Venus and Uranus are exceptions: They rotate in the opposite direction, called retrograde motion. This means their rotation is opposite to the direction of their revolution around the Sun.
It's believed that early impacts and gravitational interactions during the formation of the solar system likely caused these exceptions.
