ESA uses cookies to track visits to our website only, no personal information is collected.
By continuing to use the site you are agreeing to our use of cookies. OK Find out more about our cookie policy.
Date: 08 February 2007 Copyright: Adapted from NASA material Show in archive: true
Artistic view of the analogy between the aurora phenomenon and a TV screen within which electrons are accelarated. Electrons are coloured in blue-white and positively charged ions in green.