Astronomers rejected a proposal that would have retained Pluto as a planet and brought three other objects into the cosmic club.More info at BBC.
Pluto has been considered a planet since its discovery in 1930 by the American Clyde Tombaugh.
The vote effectively means the ninth planet will now be airbrushed out of school and university textbooks.
Pluto officially not a planet anymore
Posted on Thursday, Aug 24 2006 @ 16:25 CEST by Thomas De Maesschalck
Many textbooks will need to be replaced as 2,500 experts for the International Astronomical Union(s (IAU) general assembly have decided that Pluto will lose its status as a planet.