A dwarf planet is a celestial body that orbits the Sun and is similar to a planet but does not clear its neighboring region of other objects. This means that while it is large enough to be rounded by its own gravity, it shares its orbital zone with other debris. Examples of dwarf planets include Pluto, Eris, and Haumea. Dwarf planets are fascinating because they challenge our understanding of what constitutes a planet. They are part of a larger category of objects in the solar system and provide insights into the formation and evolution of planetary bodies. Their study helps astronomers learn more about the history of our solar system.