The Kuiper Belt is a disc-shaped area of the solar system found further from the Sun than Neptune. This area is filled with many small bodies including comets, asteroids and icy objects. The Kuiper Belt lies near Pluto. This belt has millions of icy comets which circle the Sun very fast. The Kuiper Belt is 20 times as wide as the asteroid belt and 20 to 200 times as massive. It is sometimes called the Third Zone of the solar system. It is named after astronomer Gerard Kuiper who published a scientific paper in 1951 that speculated about objects beyond Pluto.