Scale of the Solar System Trail

The Scale of the Trail  As you walk the trail, you are walking from the Sun through the orbits of the planets, as if walking out from the centre through the rings of an onion. In reality the planets are never aligned in a line as they are on the trail. The position of each planet represents a point on its orbit around the Sun. For example, the walk from Earth to Mars may seem short on the trail but in reality Mars could be on the other side of the Sun as it makes its 687 day orbit.