Pluto is in Argentina.
Argentina . With a mainland area of 2780400 km2 , Argentina is the eighth-largest country in the world , the second largest in Latin America , and the largest Spanish-speaking one . The Kuiper belt ( [ ` kaipər ] or [ ` kœy̯pǝr ] ) , sometimes called the Edgeworth -- Kuiper belt , is a circumstellar disc in the Solar System beyond the ( known ) planets , extending from the orbit of Neptune ( at 30 AU ) to approximately 50 AU from the Sun . Pluto . Like other Kuiper belt objects , Pluto is primarily made of ice and rock and is relatively small -- about one-sixth the mass of the Moon and one-third its volume . A trans-Neptunian object ( TNO , also written transneptunian object ) is any minor planet in the Solar System that orbits the Sun at a greater average distance ( semi-major axis ) than Neptune , 30 astronomical units ( AU ) .