Kuiper

The Kuiper Belt is a vast, doughnut-shaped region beyond Neptune's orbit that contains many small icy bodies, including dwarf planets like Pluto. Think of it as a distant, icy asteroid belt in space. These objects are leftovers from the solar system's formation, composed mainly of ice, rock, and frozen gases. The Kuiper Belt provides insights into the early solar system, helping scientists understand how planets and small bodies formed and evolved over time. It is also the source of some short-period comets that occasionally visit the inner solar system.