Editing Neptune (section)

== Neptune's rings ==
{{mainarticle|Rings of Neptune}}
[[File:New Webb Image Captures Clearest View of Neptune’s Rings in Decades.png|thumb|Neptune's rings and moons viewed by the [[James Webb Space Telescope]]]]
There are five rings around the planet.<ref name=":13" /> They are not as well known as the [[rings of Saturn]]. The rings were discovered by a team led by an American scientist [[Edward Guinan]] in 1968. Then, in the mid-1980s astronomers thought that the rings might not be complete. Stellar [[occultation]]s were found that rarely showed an extra "blink" just before or after the planet [[Occultation|moved in front of]] the star. However, ''Voyager 2'' showed that they were complete. The [[planetary ring]]s of Neptune have a weird "clumpy" arrangement. Scientists think that it may be because of the gravitational contact with small moons that orbit near them.<ref>{{Cite journal|last1=Schörghofer|first1=Norbert|last2=Hsieh|first2=Henry H.|year=2018|title=Ice Loss From the Interior of Small Airless Bodies According to an Idealized Model |url=http://dx.doi.org/10.1029/2018je005568|journal=Journal of Geophysical Research: Planets|volume=123|issue=9|pages=2322–2335|doi=10.1029/2018je005568|arxiv=1802.01293|bibcode=2018JGRE..123.2322S|s2cid=119100900|issn=2169-9097}}</ref> Pictures showed that the ring system had several faint rings. The farthest ring, Adams, has five arcs named ''Courage'', ''Liberté'', ''Egalité 1'', ''Egalité 2'', and ''Fraternité'' (Courage, Liberty, Equality, and Fraternity).<ref>{{Cite book|title=Allen's Astrophysical Quantities. Springer|last=Cox|first=Arthur N.|year=2001|publisher=Springer |isbn=978-0-387-98746-0}}</ref>
[[File:Neptune rings PIA02224.jpg|thumb|341x341px|Neptune's rings]]
The laws of motion predict that arcs will spread out into one ring in a very short time. But the arcs in Neptune's rings somehow did not. A moon's gravity may have created the arcs. [[Galatea (moon)|Galatea]] is a moon just inside the Adams ring.<ref>{{Cite web|title=In Depth {{!}} Neptune|url=https://solarsystem.nasa.gov/planets/neptune/in-depth|access-date=May 10, 2021|website=NASA Solar System Exploration |date=10 November 2017 }}</ref> However, in 2005, scientists figured out that Neptune's rings were more unstable than previously believed. The ''Liberté'' arc may disappear in roughly less than 100 years.<ref>{{cite web|date=March 26, 2005|title=Neptune's rings are fading away|url=https://www.newscientist.com/channel/space/mg18524925.900|accessdate=June 9, 2021|work=New Scientist}}</ref>