Article in Ciel et Espace June 2013 about M57 and its expansionMay 27, 2013|Deepsky, Nebulae, Published Home » Sample Page » Deepsky » Article in Ciel et Espace June 2013 about M57 and its expansion This article was published in the French magazine Ciel et Espace in June 2013: Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Name* Email* Website Save my name, email, and website in this browser for the next time I comment. Time limit is exhausted. Please reload the CAPTCHA. five − four = By using this form you agree with the storage and handling of your data by this website. * This site uses Akismet to reduce spam. Learn how your comment data is processed.