The Kuiper Belt, also known as the Edgeworth-Kuiper Belt, is a region of our solar system beyond the orbit of Neptune where many small icy objects reside. It is named after Dutch-American astronomer Gerard Kuiper who first predicted its existence in 1951. Other synonyms for the Kuiper Belt include the Kuiper-Edgeworth Belt, trans-Neptunian region, trans-Neptunian object belt, and the Edgeworth Belt. It is estimated that there are hundreds of thousands of objects in the Kuiper Belt, including dwarf planets such as Pluto and Eris, and it is a source of valuable information about the formation and evolution of our solar system.