Solar system. Artwork of the eight planets orbiting the Sun (upper right), as seen from the orbit of Saturn (lower left). The orbits of the planets are shown as blue lines. Distances and sizes are not to scale. In their order from the Sun, the planets are: Mercury, Venus, Earth, Mars (the small, rocky inner planets), Jupiter, Saturn, Uranus, and Neptune (the outer gas giant planets). Apart from Saturn, the outer planets are at top right. In August 2006, Pluto (not shown) became a Dwarf planet. The asteroid belt (between Mars and Jupiter) is seen, and the Milky Way galaxy is in the background.
