The New Solar System? (IMAGE) International Astronomical Union Caption The world's astronomers, under the auspices of the International Astronomical Union (IAU), have concluded two years of work defining the lower end of the planet scale -- what defines the difference between "planets" and "solar system bodies." If the definition is approved by the astronomers gathered August 14-26, 2006, at the IAU General Assembly in Prague, our Solar System will consist of 12 planets: Mercury, Venus, Earth, Mars, Ceres, Jupiter, Saturn, Uranus, Neptune, Pluto, Charon and 2003 UB313. The three new proposed planets are Ceres, Charon (Pluto’s companion) and 2003 UB313. There is no change in the planetary status of Pluto. In this artist's impression the planets are drawn to scale, but without correct relative distances. Credit The International Astronomical Union/Martin Kornmesser Usage Restrictions EMBARGOED UNTIL 16 August 2006, 8:00 CEST/02:00 EST License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.