Outer planet

The outer planets are planets in the Solar System that are beyond the asteroid belt. The four planets; Jupiter, Saturn, Uranus and Neptune are gas giants. All four of these planets have planetary rings which are made up of dust and other particles.

 Related pages 
 Moons of Jupiter - Rings of Jupiter 
 Moons of Saturn - Rings of Saturn 
 Moons of Uranus - Rings of Uranus 
 Moons of Neptune - Rings of Neptune 
 Inner planet

 References 

 More reading 
Scott W. Benson – Solar Power for Outer Planets Study (2007) – NASA Glenn Research Center
Trautman and Bethke – Human Outer Planet Exploration (2003) – NASA Langley Research Center and Princeton University 

 Other websites 
Outer Planets Assessment Group (NASA)
October 2011 OPAG Presentations
Planetary Science Decadal Survey Mission & Technology Studies 
Dwayne Day – Exploration of the Outer Planets – U.S. Centennial of Flight Commission  ~2003

Category:Solar System planets