Universe Today has an article on possible explanations, including a comparison between a simulated rocket failure and the actual phenomenon. http://www.univers

Universe Today has an article on possible explanations, including a comparison between a simulated rocket failure and the actual phenomenon. http://www.universetoday.com/2009/12/09/what-was-the-norway-spiral/ http://www.universetoday.com/2009/12/09/what-was-the-norway-...