http://www.helium.com/knowledge/84483-understanding-meteor-showers-the-pleiades-the-perseid-and-more.xml Helium.com > Astronomy > Understanding meteor showers: The Pleiades, the Perseid and more en-us Copyright Helium.com Tue, 25 Aug 2009 20:51:56 GMT Tue, 25 Aug 2009 20:51:56 GMT