The majority of planets in the solar system move in a counter-clockwise direction due to the initial spin of the dust and gas cloud from which they formed. This spin was amplified during the cloud's collapse, adhering to the principle of conservation of angular momentum. Observers looking at the solar system from the sun's north pole see the planets orbiting counter-clockwise. However, from the opposite side of the plane, the same orbits would appear clockwise. The term "anti-clockwise" is not an accurate descriptor for orbital motion in three-dimensional space.