Pluto

Blogstorm Erupts Over Pluto's Downgrade to Dwarf Planet
The decision by the International Astronomical Union (IAU) to drop Pluto as a planet has ignited a blogstorm. (August 28, 2006)

Will Neptune Be Next?
Some experts say that Pluto's recent demotion to dwarf planet could set a precedent and that Neptune could be next. (August 26, 2006)

You Say Pluto, I Say Pluton
The International Astronomical Union ("IAU") General Assembly has voted to strip Pluto of its designation as a planet because it does not meet the new defining criteria of a planet: that it have sufficient gravity to be a sphere shape and that it be the largest object in its area of space (Pluto is a sphere, but scientists have discovered there are tens of thousands of asteroids that are bigger than Pluto). (August 24, 2006)