Editing Ring system (section)

===Neptune===
{{main|Rings of Neptune}}
The system around Neptune consists of five principal rings that, at their densest, are comparable to the low-density regions of Saturn's rings. However, they are faint and dusty, much more similar in structure to those of Jupiter. The very dark material that makes up the rings is likely organics processed by [[radiation]], like in the rings of Uranus.<ref name="smith1989"/> 20 to 70 percent of the rings are [[Cosmic dust|dust]], a relatively high proportion.<ref name="smith1989"/> Hints of the rings were seen [[Rings of Neptune|for decades]] prior to their conclusive discovery by ''Voyager 2'' in 1989.