2026-08-24 · space
Pluto's New Identity as a Dwarf Planet
On August 24, 2006, the International Astronomical Union made a significant change in our understanding of the solar system by reclassifying Pluto as a dwarf planet. This decision was based on a new definition of what constitutes a planet, which Pluto did not meet due to its size and orbital characteristics. As a result, Pluto, which had been considered the ninth planet since its discovery in 1930, was redefined, reshaping both scientific perspectives and public sentiment about our celestial neighbors.
Fun fact. Pluto was regarded as the ninth planet for 76 years before its reclassification.