Pluto was considered a planet for 76 years. Then, in 2006, another discovery caused some astronomers to question whether Pluto was a planet or something else. Astronomers found a group of huge floating rocks—asteroids—near the same area as Pluto. One of these asteroids was actually bigger than Pluto. Some astronomers began to say that Pluto was actually just part of this group of asteroids and not really a planet. However, others disagreed and said Pluto should be considered a planet. The debate over the status of Pluto continues to this day..