Mike Brown

Mike Brown is an American astronomer known for discovering high-impact celestial objects, most notably the dwarf planet Eris in 2005, which challenged the traditional view of our solar system's boundaries. His work contributed to the redefinition of what constitutes a planet, leading to the reclassification of Pluto as a dwarf planet. Brown's discoveries have expanded our understanding of the Kuiper Belt—an area beyond Neptune filled with icy bodies—and highlighted the diversity of objects orbiting the Sun. His efforts are significant in planetary astronomy, reshaping how scientists categorize and understand small bodies in our solar system.