Planets travel around the sun in paths called orbits. Each planet has its own orbit around the sun, and one orbit around the sun is called a year. All planets travel in the same direction around the sun.
Not all orbits lie on exactly the same plane with respect to one another, as some planets orbit at a slight angle to the plane of the ecliptic. Pluto has been relegated to the status of a dwarf planet, but its orbit is quite unusual, as it is the most tilted of all planets and crosses the orbit of Neptune. The orbits of Mercury, Venus, Earth and Mars lie relatively close to one another, while the orbits of Jupiter, Saturn, Uranus and Neptune are widely spaced from each other.