Dueling Auroras . ... 7.08.2005 . ... Credit Copyright: Phil Hoffman Explanation: Will it be curtains for one of these auroras? A quick inspection indicates that it is curtains for both, as the designation " curtains " well categorizes the type of aurora pattern pictured. Another (informal) type is the corona . The above auroras resulted from outbursts of ionic particles from the Sun during the last week of 2001 September. ... NASA Web Site Statements, Warnings, and Disclaimers . ...