It is the largest known trans-Neptunian object by volume by a small margin, but is less massive than Eris. Like other Kuiper belt objects, Pluto is made primarily of ice and rock and is much smaller than …

Apr 22, 2025 · Pluto is a complex and mysterious world with mountains, valleys, plains, craters, and glaciers. It is located in the distant Kuiper Belt. Discovered in 1930, Pluto was long considered our …

Nov 21, 2025 · Pluto, large, distant member of the solar system that formerly was regarded as the outermost and smallest planet. It also was considered the most recently discovered planet, having …

Dec 3, 2024 · Pluto is one of the most mysterious and controversial celestial objects in the solar system. Find out what most mystifies scientists and stargazers about this dwarf planet.

Mar 27, 2025 · Pluto is a dwarf planet situated in the Kuiper Belt, a distant region of icy bodies beyond Neptune’s orbit. Pluto is distinguished by its small size, irregular orbit, and classification as a dwarf …

Originally the ninth planet from the Sun, Pluto was recategorized as a dwarf planet as it was discovered that it is one of numerous large bodies within the Kuiper Belt.

Because it has not cleared the neighborhood around its orbit, Pluto is considered a dwarf planet. It orbits in a disc-like zone beyond the orbit of Neptune called the Kuiper belt, a distant...

Quick Links: The discovery of Pluto The developing landscape of our Solar System How to define a planet The definition of a planet The definition of a dwarf planet Dwarf planets in our Solar System …

Feb 7, 2025 · Pluto is a small, icy celestial body located in the Kuiper Belt, a region beyond Neptune that contains numerous similar objects. It has an average diameter of approximately 2,377 kilometers, …

Until 2015, Pluto, the former ninth planet of the classical solar system, was largely a mystery—a tiny speck 3.6 billion miles from the sun.