ESAHome
   
Space Science
About Space ScienceESA's 'Cosmic Vision'Science & Technology in-depth
Multimedia
Science imagesScience videosAnimationsDownloadsSounds from space
Media centre
Press ReleasesPress kitsESA Television
Resources
Reference sectionGlossaryFAQs
Science missions
Services
HelpLegal disclaimerCommentsSubscribe
Follow us
RSS feedsESA Sci on Twitter
 
 
 
Bookmark and Share
 
 
 
 
 printer friendly page
Neptune
Neptune
22 August
 
1989: On 22 August 1989, it was discovered that the planet Neptune had a ring system.

Voyager 2 had taken images of Neptune on 20 August 1989, five days before its closest encounter with the planet on 25 August. Voyager 2's images showed the rings to be complete but with bright clumps. Like Uranus and Jupiter, Neptune's rings are very dark but their composition is unknown.  
 

 
 
Today in space history
21 August20 August19 August18 August17 August16 August15 August
 
 
 
   Copyright 2000 - 2012 © European Space Agency. All rights reserved.