Smithsonian Quickly Drops Pluto
The International Astronomical Union has decided that Pluto no longer is considered a planet. This distant body has been reclassified as a "dwarf planet," along with two other bodies, Xena and Ceres. While some may feel cheated, losing one of their beloved planets, the Smithsonian Air & Space Museum was quick to adopt the new standard. Within a week and a half, the museum had begun making changes to the solar system exhibit. The symbol of Pluto, which had been in a list of all the planets, was hidden behind a black plastic square.
Also, next to a detailed description of Pluto and Neptune a temporary poster had been set up explaining the recent change by the IAU and its effect on Pluto.
Looks like the Smithsonian has some work ahead--adding several new dwarf planets to the models and descriptions.