Issue Date: Sep 30, 2006
"The match was declared closed at the loss of one planet." This could well have been the closing statement of anyone doing a running commentary on the proceedings of the 26th General Assembly of the International Astronomical Union (iau). The meeting held at the Czech capital, Prague between August 14 and 25, 2006, saw members voting for a new definition of planets. According to this definition, Pluto will no longer be called a planet: it will be called a dwarf planet instead.