Following on from my earlier post about the probe to Pluto, it now emerges that Pluto may not actually be a planet anymore. The debate is getting serious, with exciting - well, sort of exciting, anyway - news emerging of punch-ups among experts at the International Astronomical Union's conference in Prague. This bit made me laugh:

Stern said like-minded astronomers had begun a petition to get Pluto reinstated. Car bumper stickers compelling motorists to "Honk if Pluto is still a planet" have gone on sale over the internet

Strange to think that a lump of rock millions of miles away in space is causing consternation among grown professionals. In the next hundred years, there will no doubt be endless discoveries of planets such as 2003UB313 in our solar system, which are actually bigger than Pluto. What are the school text books going to look like then?