[h=1][/h]Oh Pluto, we have missed you. You have been treated so callously. But , now....welcome back!
Just goes to show you how capricious all that science stuff can be...
The debate renewed in October over the fate of the once-planet Pluto.
Pluto, which was discovered in 1930 by astronomer Clyde Tombaugh, was demoted by the International Astronomical Union (IAU) to dwarf planet status in 2006. The IAU now considers the solar system to consist of eight planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.
Smithsonian Center for Astrophysics held a debate in September about whether Pluto should be a planet. Voters listened to three scientists who presented various views in a debate and decided that Pluto is indeed a planet.
For the record, the IAU still lists Pluto as a dwarf planet.
The dwarf planet Pluto is recognised as an important prototype of a new class of Trans-Neptunian Objects. The IAU has put given a new denomination for these objects: plutoids. Pluto and the Solar System | IAU