The time span for the repeat general performance of a nova could be anything at all involving 1 year and around a a lot of years, adds Richard Townsend, professor of astronomy with the College of Wisconsin-Madison. 91 Jacek Krywko Jacek Krywko is usually a freelance science and engineering writer https://socialislife.com/story2741208/top-latest-five-nova-explosion-this-year-urban-news